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EPC16UC88N - 16Mb In-System Prog Config PROM | Altera | FPGA
EPC16UC88N

EPC16UC88N - 16Mb In-System Prog Config PROM | Altera | FPGA

The Altera EPC16UC88N is a 16-megabit (16,777,216-bit) in-system programmable Enhanced Configuration (EPC) device for high-density Altera FPGAs, supplied in an 88-pin Ultra FineLine Ball-Grid Array (UBGA, 11x8 mm) package and operating from a 3.0V to 3.6V single supply. It combines a flash-memory array with a dedicated configuration controller to deliver single-device, high-speed configuration for Stratix, Cyclone, and APEX families via Altera's passive-serial (PS), passive-parallel-synchronous (PPS), passive-parallel-asynchronous (PPA), and JTAG modes. An Enhanced Configuration (EPC) device is a special-purpose configuration memory that stores FPGA bitstreams and serially or in parallel loads them into the FPGA at power-up or under JTAG command. EPC devices sit below FPGAs and CPLDs in the programmable-logic configuration hierarchy, providing non-volatile bitstream storage that replaces discrete boot PROMs and enables remote in-field reprogramming, multi-image storage, and design revision control. Key features of the EPC16UC88N include 16 Mb of on-chip flash, on-chip decompression support (including Altera's remote-system-update and dual-image modes), a built-in oscillator, JTAG boundary-scan and ISP, low standby current with a dedicated power-down mode, and bus-hold on data lines. The device is supplied in an 88-ball UBGA (11x8 mm) fine-pitch BGA, which is compatible with Altera's high-pin-count configuration-device footprint. Typical applications include storing configuration bitstreams for Altera Stratix II, Stratix, Cyclone II, Cyclone, and APEX 20K/20KE FPGAs in telecom, industrial-control, and embedded-computing boards, as well as remote-field-upgrade systems where the EPC16UC88N can hold two bitstreams and switch between them on the next power cycle without external logic. Designers should note that the EPC16UC88N's 88-ball UBGA footprint is unique to the EPC16UC88 family - the EPC16QI100N uses a 100-pin PQFP/EQFP and is NOT pin-compatible. For new designs targeting cost-sensitive boards, designers often choose the smaller EPC8 (8 Mb) or newer EPCS serial configuration devices; choose the EPC16UC88N only when you need 16 Mb density and JTAG/parallel-configuration flexibility. This page synthesizes distributor pricing, drop-in same-package alternatives, and engineering design notes that go beyond the data sheet's nominal spec tables, giving procurement and design engineers a one-stop reference.

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EPC16UC88NT - 16-Mbit FPGA Configuration PROM | Altera
EPC16UC88NT

EPC16UC88NT - 16-Mbit FPGA Configuration PROM | Altera

Altera EPC16UC88NT is a 16-Mbit enhanced configuration device for SRAM-based FPGA and programmable-logic devices, supplied in the 88-ball Ultra FineLine BGA package identified in verified product listings as 88-UBGA, 11 mm by 8 mm. The verified source identifies EPC16UC88N as an in-system programmable configuration PROM with 16 Mbit capacity and the same 88-UBGA package. EPC16UC88NT belongs to the configuration-memory hierarchy: configuration PROM, nonvolatile memory, FPGA support memory, and semiconductor integrated circuit. A configuration PROM is a nonvolatile semiconductor memory used to store the bitstream that configures an SRAM-based FPGA whenever the system powers up, reinitializes, or requires new configuration data. Because SRAM-based logic devices lose programmed configuration when power is removed, the PROM provides persistent storage and transfers the configuration image during initialization. It is part of the broader system chain of nonvolatile memory, FPGA configuration interface, power sequencing, and programmable logic. The EPC16UC88 family is described by verified source material as an Enhanced Configuration Device with 16-Mbit Flash memory. Configuration data supports FPGA families including ACEX 1K, APEX 20K, APEX II, Arria GX, Cyclone, Cyclone II, FLEX 10K, FLEX 6000, Mercury, Stratix, Stratix GX, Stratix II, and Stratix II GX. The stored configuration is loaded into the target SRAM-based device through the FPGA configuration interface, allowing the host system to restore its programmed logic state without an external programming source. The EPC16UC88N distributor listing specifically describes an in-system programmable configuration PROM for FPGAs, with 16 Mbit memory and an 88-UBGA package measuring 11 mm by 8 mm. The target ordering code EPC16UC88NT is associated with the same EPC16UC88 configuration-device family, but the supplied verification does not establish every package-level suffix, temperature-grade, or pinout difference for the NT variant. The EPC16UC88 datasheet is a 36-page document in the provided AllDatasheet result, but the target ordering code should be checked against the applicable manufacturer ordering information before substitution. Typical applications include configuring legacy Altera FPGA development boards, industrial control systems using SRAM-based FPGAs, communications equipment requiring repeatable power-up configuration, and test systems that retain FPGA bitstreams outside the target device. The nonvolatile configuration function is especially useful when the FPGA must initialize into a known state after power cycling or when configuration data must be updated without replacing the target programmable device. When designing with EPC16UC88NT, verify the exact ball map, supported target FPGA family, configuration voltage, programming interface, and suffix-specific temperature information from the applicable manufacturer documentation. The verified data does not provide electrical ratings, timing values, absolute maximum limits, or a verified NT-specific pinout. Do not infer those values from the EPC16UC88 family name alone. This page combines the verified product description, package information, supported FPGA-family context, and purchasing sources. It also distinguishes confirmed facts from fields requiring manufacturer-document verification, helping engineers avoid treating a family-level specification as a target-suffix guarantee.

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EPC16UC88SS - 16-Mbit Config PROM for Altera FPGA | Intel
EPC16UC88SS

EPC16UC88SS - 16-Mbit Config PROM for Altera FPGA | Intel

The Intel EPC16UC88SS is a 16-Mbit serial configuration device designed to store configuration bitstreams for Altera/Intel FPGAs. It uses a four-pin serial interface (nCS, DCLK, DATA, ASDI) to deliver compressed configuration data to the target FPGA on power-up, providing a flash-based single-chip alternative to legacy parallel PROMs and boot ROMs. Packaged in an 8-pin SOIC, the EPC16UC88SS supports multi-device configuration chains and is qualified for industrial and commercial operating temperature ranges. What is a configuration PROM? An FPGA configuration PROM (Programmable Read-Only Memory) is a non-volatile serial flash device that holds the FPGA's bitstream image and loads it into the FPGA's SRAM-based configuration cells at every power-up. In the broader taxonomy, EPC16 falls under: configuration memory -> non-volatile memory (NVM) -> serial flash -> PROM. Because SRAM-based FPGAs (Cyclone, Cyclone II, Cyclone III, Stratix, Stratix II, Stratix III, Arria families) lose their configuration when power is removed, the configuration PROM sits in the boot path as the source of truth for the design. The EPC16UC88SS supports Intel/Altera's compressed configuration format, enabling storage of larger designs in smaller memory. It cascades automatically in multi-device configuration chains through the nCS-OE daisy-chain and supports in-system programming via JTAG-compatible serial interface (AS mode) for board-level firmware updates. Programmable nINIT_CONF pin enables configuration of multiple FPGAs from a single PROM image. Architecturally, the device integrates a 16-Mbit NOR flash array with a serial configuration controller. Configuration time is dominated by DCLK frequency (up to 100 MHz in fast mode) and image size, with typical load times in the hundreds of milliseconds for Stratix-class bitstreams. Power consumption is dominated by read/program/erase operations. Typical applications include Altera Cyclone II / Cyclone III designs, Stratix II / Stratix III boot storage, Arria GX prototyping boards, and any Intel FPGA-based system requiring non-volatile configuration from a small-footprint serial memory. It also suits legacy parallel-to-serial configuration migration paths. When designing, pay close attention to the FPGA serial mode pin strapping (MSEL pins) and the DCLK series-termination value when running at the maximum 100 MHz clock rate. Use Intel's Quartus software to generate the .pof/.jic images, and verify the EPC16 supports the target FPGA family's compressed configuration scheme before committing to this part. This page synthesizes distributor stock and pricing data, drop-in compatible EPC16 family alternatives, and engineering design notes that go beyond the standard Intel datasheet presentation.

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EPC16UC88T - 16Mb FPGA Config PROM | Altera
EPC16UC88T

EPC16UC88T - 16Mb FPGA Config PROM | Altera

The Altera (now Intel) EPC16UC88T is a 16-Mbit in-system programmable configuration PROM designed to store and load configuration bitstreams for SRAM-based FPGAs such as Altera Cyclone, Stratix, and other LUT-based device families. Housed in an 88-ball UBGA package measuring 11 mm x 8 mm, the device provides serial-configuration compatibility at frequencies up to 33 MHz, supports 3.3 V single-supply operation, and uses a four-pin serial interface (nCS, DCLK, DATA, nINIT_CONF_DONE) that wires directly to the FPGA MSEL[2:0]-controlled configuration pins. An FPGA configuration PROM is a non-volatile serial Flash device that holds the FPGA bitstream and serially clocks it into the FPGA at power-up through the dedicated configuration port. The EPC16UC88T belongs to the Altera Enhanced Configuration Device family (EPC4, EPC8, EPC16) - the EPC16 is the largest-density member of this family, providing 16 Mbits of storage in a compact footprint, making it well suited for designs that have outgrown the EPC8 or EPC4 but still need a simple, robust, in-system programmable boot source. Key features include 16 Mb of Flash, 33 MHz maximum clock rate, in-system programmability via IEEE Std 1149.1 (JTAG), cascade support for higher density designs, and an nINIT_CONF_DONE open-drain status output that the FPGA can monitor during multi-PROM cascading. The 88-ball UBGA package is pin-compatible across the EPC4, EPC8, and EPC16 family, allowing designers to step up density without changing the PCB layout. The EPC16UC88T uses a 33 MHz DCLK-domain serial protocol, with the configuration data shifted out on the rising edge of DCLK and latched by the FPGA on the falling edge. Because the EPC16 family predates Altera's later serial quad-mode (EPCQ) and active serial (EPCS/EPCQ-A) families, designers migrating to newer Cyclone 10, MAX 10, or Cyclone V SoC devices must confirm JTAG-mode compatibility, as MSEL configuration modes have evolved. Typical applications include boot-configuration for legacy Cyclone, Cyclone II, Stratix, Stratix II, Stratix III, Stratix IV, Arria GX, and other SRAM-based Altera FPGAs; industrial control boards; telecommunications line cards; test and measurement equipment; military and aerospace form-fit-function retrofits; and any design that must store a multi-megabit FPGA bitstream outside the FPGA itself. The EPC16's 16 Mb capacity comfortably holds bitstreams for medium-to-large FPGAs in the early-2000s to mid-2010s generation. When designing with the EPC16UC88T, ensure the MSEL[2:0] pins on the FPGA are set to FPP or PS configuration mode compatible with 3.3 V EPC16 signalling, since mixing 1.8 V EPCQ-L devices with a 3.3 V EPC16 will damage inputs. JTAG chain ordering must place the EPC16 in the correct TAP position relative to the FPGA so the FPGA can reprogram the PROM in-system without contention. Decoupling: place a 0.1 uF ceramic capacitor directly under the package BGA balls on each VCC island to suppress switching noise during bitstream loading. This page synthesizes distributor pricing, same-family density alternatives, and practical configuration-design notes not found in the manufacturer datasheet, helping engineers source and validate the EPC16UC88T quickly.

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EPC16UC8B - 16Mb FPGA Config Device, 8-Pin QFP | Intel/Altera
EPC16UC8B

EPC16UC8B - 16Mb FPGA Config Device, 8-Pin QFP | Intel/Altera

The Intel (formerly Altera) EPC16UC8B is an Enhanced Configuration Device in the EPC16 family, providing 16 Mb of non-volatile Flash memory used to configure SRAM-based lookup-table (LUT) FPGAs such as the Altera Cyclone, Stratix, and APEX families at system power-up. Packaged in an 8-pin QFP with 3.3V core supply and 1.8V/2.5V/3.3V I/O compatibility, the device supports the Fast Passive Parallel (FPP), Passive Parallel Synchronous (PPS), Passive Parallel Asynchronous (PPA), and Passive Serial (PS) configuration schemes. What is an Enhanced Configuration Device? An Enhanced Configuration Device is a special-purpose Flash memory IC that stores the FPGA's configuration bitstream and loads it into the FPGA's SRAM configuration cells at every power-on or reconfiguration event. Because SRAM is volatile, the FPGA must be re-programmed each time power is applied; the configuration device acts as the boot ROM for the FPGA, sitting on the dedicated configuration bus and transferring the bitstream serially or in parallel. The 'enhanced' designation refers to Altera's multi-mode interface, in-system programmability via JTAG, and support for both 1.8V and 3.3V FPGA cores. Key features include 16 Mb storage capacity, configurable I/O voltage, in-system programmability through the IEEE 1532 / JTAG interface, dedicated nSTATUS and CONF_DONE handshaking pins, and a 3.3V VCC supply. The 8-pin QFP package (UC8B suffix) provides a small footprint for cost-sensitive designs and supports industrial operating temperatures. Compared with earlier EPC16 variants in QFP packages, this part maintains the same 16 Mb density while improving in-system programming throughput and adding low-power standby modes for battery-backed designs. The EPC16UC8B uses a 4-pin SPI-like serial interface (DCLK, DATA, nCS, nCONFIG) in passive serial mode, or an 8-bit parallel data bus in FPP/PPA/PPS modes. The internal Flash array is organized as 16 separate configuration pages of 1 Mb each, enabling multiple bitstream storage for design versioning, golden images, or remote reconfiguration. Page selection is hardware-controlled through dedicated MSEL pins, allowing boot-time selection between distinct FPGA personalities without external logic. Typical applications include Altera Cyclone III/IV FPGA boot memory in industrial controllers, Stratix II/III configuration in telecom line cards, APEX 20K design memory in test and measurement equipment, and any system requiring multi-image FPGA configuration with fail-safe fallback. The device is also used in legacy Altera development boards and in designs that have transitioned from EPC2 or EPC8 to higher density. When designing with the EPC16UC8B, follow Altera's recommended pull-up resistor values on nSTATUS, CONF_DONE, and nCONFIG lines (typically 10 kohm to VCC) and ensure the 3.3V supply has a 0.1 uF decoupling capacitor placed within 5 mm of the VCC pin. Verify the JTAG chain ordering if multiple devices share the JTAG bus, as the EPC16 appears as a JTAG-compliant slave with its own instruction register.

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EPC16UI88 - 16Mb Config Device, 88-UBGA | Intel (Altera)
EPC16UI88

EPC16UI88 - 16Mb Config Device, 88-UBGA | Intel (Altera)

The Intel (Altera) EPC16UI88 is a 16-Mbit in-system programmable configuration PROM designed to configure SRAM-based look-up-table (LUT) FPGAs such as Altera Cyclone, Stratix, and APEX families. Per Altera product documentation, the device stores configuration bitstreams and streams them serially through a dedicated configuration interface to the target FPGA at power-up, eliminating the need for external boot PROMs and simplifying board layout. It is supplied in an 88-ball Ultra FineLine BGA (11x8 mm) package optimized for high-density surface-mount designs. The device operates from a single 3.3V supply and supports in-system programmability via the IEEE 1149.1 (JTAG) interface and the Altera ByteBlasterMV or USB-Blaster download cables. A configuration PROM is a non-volatile memory device that retains the FPGA bitstream when system power is removed. At power-on reset, the FPGA enters configuration mode and clocks data out of the PROM through a serial configuration chain (typically Altera's Passive Serial, Passive Parallel Synchronous, or Passive Parallel Asynchronous modes). The EPC16 family supports multi-device configuration chains, allowing one PROM to configure multiple FPGAs, or stacking several PROMs to configure larger devices. Compared with loading bitstreams from external flash, EPC16 devices reduce board space, lower BOM cost, and provide Altera-validated timing guarantees for configuration clock rates up to 100 MHz. Key specifications include 16 Mb of configuration memory (2 Mbytes), 3.3V core supply, JTAG/IEEE 1149.1 in-system programmability, support for multi-device cascading, and an operating temperature range suitable for industrial applications. The 88-ball UBGA package provides fine-pitch interconnect with thermal characteristics appropriate for embedded industrial and communication systems where the PROM is mounted near the FPGA it configures. The device's low standby current and rapid configuration clock support fast system wake-up times. The EPC16UI88 supports several Altera configuration modes: Passive Serial (PS), Passive Parallel Synchronous (PPS), Passive Parallel Asynchronous (PPA), and JTAG. Configuration is initiated by the FPGA's nCONFIG pin, after which the PROM presents bitstream data on DATA[7:0] (parallel) or DATA0 (serial) under control of DCLK. Designers must ensure that the EPC16UI88's density and package match the target FPGA's configuration requirements before final placement. Typical applications include Altera Cyclone II/III, Cyclone IV, Stratix II, and Stratix III FPGA-based embedded boards in industrial automation, communications infrastructure, and test-and-measurement systems. The PROM enables remote field upgrades through JTAG, simplifying firmware revision management in deployed equipment. When designing with the EPC16UI88, follow Altera's recommended decoupling scheme (0.1 uF and 10 uF capacitors close to VCC pins) and route JTAG signals as a four-wire bus (TCK, TMS, TDI, TDO) with proper termination. Ensure that the configuration clock frequency is within the FPGA's supported range, and verify multi-device cascade timing when chaining multiple FPGAs. This page synthesizes distributor pricing, drop-in alternatives from the same Altera EPC16 family, and practical configuration design notes not found on a single manufacturer datasheet.

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EPC16UI88AA - 16Mb Enhanced Config Flash 88-UBGA | Intel
EPC16UI88AA

EPC16UI88AA - 16Mb Enhanced Config Flash 88-UBGA | Intel

The Intel EPC16UI88AA is a 16-Mbit (16MX1 organization) enhanced-configuration flash memory designed for configuring Altera/Intel FPGA families such as Stratix, Cyclone, and APEX, housed in an 88-ball UBGA (Ultra-fine-line BGA) package. It supports a 66.7 MHz configuration clock and provides 3-STATE outputs with 100,000 write/erase cycle endurance for in-system reconfiguration via JTAG or serial interfaces. An FPGA configuration memory is a non-volatile storage device that holds the FPGA's bitstream and serially loads it into the FPGA's SRAM configuration cells at power-up. The Enhanced Configuration Device family (EPC4, EPC8, EPC16) sits in the hierarchy: configuration PROM -> configuration memory -> non-volatile memory -> semiconductor IC. These devices eliminated the need for external programming hardware by enabling in-system reprogrammability through JTAG, which dramatically accelerated FPGA development cycles and enabled field-upgradeable designs. Key features include 16-Mbit density organized as 16M x 1 bit, a 3.3V core supply, 66.7 MHz maximum configuration clock frequency, and 3-STATE output control. The device interfaces to FPGAs through a dedicated serial configuration bus and supports JTAG boundary-scan programming for board-level testing. The 88-ball UBGA package provides compact mounting for space-constrained designs. Architecturally, the EPC16UI88AA uses a single-transistor NOR flash cell array with on-chip charge-pump generation and an internal oscillator for self-timed programming. The device is split into multiple configuration pages, allowing pre-stored bitstreams to be selected at reset via dedicated page-select pins, enabling multi-boot FPGA systems that can switch between firmware images in microseconds. Typical applications include Altera/Intel Stratix and Cyclone FPGA configuration storage, multi-image FPGA boot systems, industrial control boards requiring in-field firmware upgrades, and prototyping platforms where iterative bitstream loading is required. The device is pin-compatible with other EPC16 family members and pairs directly with Intel FPGA configuration controllers. Design consideration: maintain the 3.3V VCC within tolerance and route JTAG signals with proper length matching; the EPC16 family is now in NRND (Not Recommended for New Designs) status on many distributor pages, so verify long-term availability before committing to new designs. This page synthesizes Intel/Octopart distributor pricing, same-family drop-in alternatives (EPC16UC88AA, EPC16UC88N), and practical design notes not consolidated in the manufacturer datasheet.

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EPC16UI88N - 16Mb In-System Prog Config PROM 88-UBGA | Intel
EPC16UI88N

EPC16UI88N - 16Mb In-System Prog Config PROM 88-UBGA | Intel

The Intel (formerly Altera) EPC16UI88N is a 16-Mbit (2 Mbyte) in-system programmable configuration PROM designed to configure very-high-density Altera FPGAs, including Stratix, Cyclone, and APEX families. Housed in an 88-pin Ultra FineLine BGA (UFBGA / UBGA) package measuring 11 mm x 8 mm, this industrial-temperature-grade device operates from a single 3.3 V supply and supports 66.7 MHz configuration clock rates for fast FPGA configuration. What is a configuration PROM? A configuration PROM is a non-volatile memory device that stores the bitstream for an FPGA. At power-up or under user control, the PROM serially or in parallel transfers the bitstream to the target FPGA through a dedicated configuration interface (such as Altera's PS, FPP, or AS modes). Configuration PROMs are part of the broader memory hierarchy: PROM -> non-volatile memory -> memory IC -> integrated circuit. They differ from boot flash in microcontrollers because they speak FPGA-specific protocols and include features like multi-device cascading, decompression, and in-system programming (ISP) via JTAG. Key features of the EPC16UI88N include 16 Mbit density, in-system programmability through IEEE 1149.1 (JTAG), a 3.3 V single-supply core, an industrial operating temperature range of -40 C to +85 C, and built-in support for configuring multiple FPGAs in a daisy chain. The device integrates a flash memory array with a configuration controller on a single die, eliminating the need for external memory. The 88-ball UFBGA package supports high-density routing and is suitable for space-constrained designs. Architecturally, the EPC16 uses a flash-based memory core instead of older EPROM or EEPROM cells, allowing unlimited reconfiguration cycles through JTAG. A configuration controller block manages the serial/parallel data transfer and handles multi-device daisy chaining automatically, simplifying board design when several FPGAs must be loaded from a single chain. Typical applications include configuring Altera Stratix, Cyclone, and APEX series FPGAs in industrial control, telecommunications, and test equipment. The device is also used in prototype development where bitstreams are updated frequently via JTAG. When designing with this part, ensure the configuration clock routing on the PCB is short and matched to avoid signal-integrity issues, and respect the cascade-mode timing when multiple EPC16 devices share a chain.

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EPC16UI88T - 16Mb Enhanced Config Device, 88-pin UBGA | Altera
EPC16UI88T

EPC16UI88T - 16Mb Enhanced Config Device, 88-pin UBGA | Altera

The Intel (formerly Altera) EPC16UI88T is a 16-Mbit enhanced configuration memory device designed to configure SRAM-based look-up-table (LUT) FPGAs in the Altera product family. It is housed in an 88-ball Ultra FineLine BGA (UBGA) package with 0.8 mm pitch and supports 3.3V operation. The part is targeted at replacing multiple legacy PROM devices with a single, in-system programmable flash-based configuration store. An enhanced configuration device (EPC) is a non-volatile flash memory with an Altera-specific serial configuration interface that loads bitstream data into a companion FPGA at power-up, after reconfiguration requests, or via remote in-system programming (ISP). Compared with older EPCS / EPCQ devices, the EPC16 family supports multi-boot, dual-image storage, page-mode decompression and the Altera Passive Parallel (PP) or Passive Serial (AS) configuration schemes, providing a more flexible boot source for Stratix, Cyclone, Arria and other LUT-based Altera devices. Key features of the EPC16UI88T include 16 Mb of usable configuration memory, parallel data compression to fit larger bitstreams into the same flash density, support for multiple FPGA configuration schemes (PS, AS, FPP), and in-system programmability through the JTAG or Active Serial interface. The device supports a standard 4-wire serial interface plus optional parallel data path, and offers dedicated MSEL[2:0] and nCONFIG/nSTATUS control pins for handshaking with the target FPGA. Typical applications include boot configuration for mid-density Altera FPGAs (Cyclone III, Cyclone IV, Stratix II GX and similar generation devices), industrial control and factory automation platforms that require remote firmware upgrade capability, networking line cards and base stations, and test/measurement equipment where multi-image storage enables field-safe rollback. The wide operating temperature range and industrial qualification also suit industrial, military, and aerospace ground systems. When designing with this device, confirm that the target FPGA configuration scheme matches the EPC16 control pin mapping, and observe the 0.8 mm BGA PCB layout rules (laser-drilled vias, microvia stack-ups are recommended for high-density BGA fan-out). Always use the manufacturer-supported Quartus II / Quartus Prime programmer for device programming and verify JTAG chain integrity before ISP operations. This page synthesizes distributor stock and pricing, drop-in package-compatible alternatives, and practical PCB/boot design notes that are not consolidated in the manufacturer datasheet.

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EPC16UI8B - 16Mb Enhanced Configuration Device for FPGAs | Altera
EPC16UI8B

EPC16UI8B - 16Mb Enhanced Configuration Device for FPGAs | Altera

The Altera (Intel) EPC16UI8B is a 16-Mbit enhanced configuration device designed to configure SRAM-based LUT FPGAs such as Stratix, Cyclone, and Arria device families. Packaged in an 8-pin Ultra-Thin Small Outline No-Lead (USON/WSON) package with an industrial operating temperature range, this serial flash-based configuration memory stores the FPGA bitstream and supports in-system programming through JTAG and Active Serial (AS) interfaces. The "I8" suffix indicates 8-pin industrial-grade packaging while "B" marks the second silicon revision. An enhanced configuration device is a specialized non-volatile memory that stores the FPGA configuration bitstream and acts as the boot source for SRAM-based programmable logic. Unlike standard SPI flash, enhanced configuration devices expose configuration-specific features such as multi-page storage, dual-boot support, remote system upgrade, decompression acceleration, and dedicated FPGA hand-shake pins (nSTATUS, CONF_DONE, nCONFIG) that allow seamless multi-FPGA cascade configuration on a single board. Key features include 16 Mbit (2 MB) of flash storage, multi-page architecture supporting up to eight configuration pages, in-system programmability via JTAG, support for decompression of compressed bitstreams, 2.5 V or 3.3 V core supply, and dedicated error-detection circuitry. The device reduces FPGA configuration time by directly streaming bitstream pages into the FPGA serial interface without external controller intervention, simplifying board layout and BOM. Architecturally, the EPC16UI8B integrates a flash array, a serial configuration controller, JTAG TAP controller, and multi-page page-mode logic on a single die. Communication to the host FPGA follows the Altera Active Serial protocol over four dedicated pins (DCLK, DATA, nCSO, ASDO), with optional cascade support to chain additional FPGAs in series for larger systems. Typical applications include booting Stratix, Cyclone, and Arria FPGAs in industrial control, telecom baseband, test and measurement, and embedded computing platforms. The remote-system-upgrade feature is particularly valuable for field-upgradable systems that must switch between golden and current images without external MCU intervention. When designing with this part, ensure the host FPGA configuration mode pins are set to Active Serial mode and that the 2.5V/3.3V supply is properly decoupled. Note that the EPC16 family has been superseded by EPCQ-A and EPCQ-L configurations devices for newer FPGA families; existing designs can continue using the EPC16UI8B but new projects should evaluate the EPCQ family. This page synthesizes distributor pricing, drop-in alternatives from the Altera enhanced-configuration family, and practical configuration-design notes that are not consolidated in the manufacturer datasheet.

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EPC16UIC88 - 16Mb Enhanced Configuration Device | Altera/Intel
EPC16UIC88

EPC16UIC88 - 16Mb Enhanced Configuration Device | Altera/Intel

The Altera (now Intel) EPC16UIC88 is a 16-Mbit Enhanced Configuration Device designed for in-system programming of SRAM-based lookup-table (LUT) FPGAs, housed in an 88-ball Ultra FineLine BGA (UBGA) package. It provides 1M x 16 of non-volatile configuration memory with a parallel CMOS interface, operates from a single 3.3 V supply, and supports JTAG-based IEEE Std 1149.1 in-system programmability for field upgrades without removing the device from the board. An Enhanced Configuration Device (ECD) is a serial-configuration PROM that streams bitstream data into a Stratix, Cyclone, APEX, or other Altera FPGA at FPGA power-up, then enters a low-power standby state. Compared with classic EPCS/EPCQ serial flashes, the EPC16 family supports the proprietary 16-bit parallel FPP (Fast Passive Parallel) configuration mode that older Altera FPGAs required, and integrates the Altera 4-pin passive configuration controller so no external host controller is needed during configuration. The EPC16UIC88 sits in the configuration-memory IC hierarchy: configuration PROM -> serial/parallel configuration memory -> FPGA bitstream storage -> programmable-logic boot device. Key features of the EPC16UIC88 include 16 Mb of flash-organized storage, JTAG-ISP via IEEE 1149.1, a dedicated nCONFIG/nSTATUS/CONF_DONE handshake with the target FPGA, multi-device cascading for systems larger than 16 Mb, and a 20-year data-retention specification. The UBGA-88 11 x 8 mm package supports the JTAG-driven ISP that allows board-level reprogramming of the configuration bitstream in production or in the field, while an internal oscillator and controller offload bitstream-clocking tasks from the system processor. The device uses a CMOS process with a 3.3 V core; during configuration it draws the bulk of its current, then drops to a micro-amp standby once CONF_DONE is asserted. This separation is important because power-sequencing on legacy Altera FPGAs typically requires the configuration PROM to be valid before the FPGA's VCCINT ramp completes, so deterministic PROM power-up timing is part of the design. Typical applications for the EPC16UIC88 include legacy Stratix II/III, Cyclone II/III, APEX 20K, and Mercury FPGA designs where 16 Mb is sufficient, industrial control boards requiring in-field configuration updates via JTAG, and multi-device daisy-chained configurations where two EPC16s combine to provide 32 Mb. It is also used as a fallback boot image in systems that later migrate bitstream loading to a host processor or to a serial flash. When designing with the EPC16UIC88, observe the JTAG chain order, the nCONFIG/nSTATUS pull-up requirements, and the recommended decoupling on VCC (one 0.1 uF plus one bulk capacitor placed within 1 cm of the package). The Altera Enhanced Configuration Device Data Sheet for the EPC4, EPC8, and EPC16 family should be consulted for the cascaded-configuration schematic and for JTAG chain length limits. This page synthesizes Altera/Intel distributor pricing, JTAG-ISP-enabled drop-in alternatives, and practical FPGA-configuration design notes that are not gathered in a single location in the manufacturer's datasheet, giving a board-level engineer the cross-reference and design checklist needed for a one-step ECO.

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EPC16VC88 - 16Mb Enhanced Configuration Device | Altera
EPC16VC88

EPC16VC88 - 16Mb Enhanced Configuration Device | Altera

The Altera EPC16VC88 is a 16-Mbit enhanced configuration device in an 88-pin CQFP package, designed to configure SRAM-based look-up-table (LUT) devices including the Stratix, Cyclone, APEX, and Mercury FPGA families. It integrates a 3.3V flash memory array with an internal configuration controller that streams compressed or uncompressed configuration data to a target FPGA through a serial or parallel interface, eliminating the need for an external PROM and reducing board complexity. An enhanced configuration device is a serial-configuration-class flash memory with an on-chip JTAG controller that automates FPGA bitstream loading. In the system hierarchy it sits between raw non-volatile memory (NOR flash, EEPROM) and the FPGA it configures, providing in-system programmability (ISP) compliant with IEEE Std 1532 draft 2.0. The flash memory stores up to 16 Mbits of configuration data, which is decompressed inside the target FPGA to load a much larger logical bitstream. Key features of the EPC16VC88 include 16-Mbit storage density, a dedicated nCONFIG/nSTATUS/CONF_DONE handshake interface, multi-device cascade support for configuring multiple FPGAs in a chain, and 3.3V single-supply operation. According to the Altera Enhanced Configuration Devices (EPC4, EPC8, EPC16) datasheet, the device supports both serial (1-bit) and parallel (8-bit) configuration modes, with a typical configuration clock rate of 20 MHz in serial mode. ISP is performed through the JTAG port using the SFL (Serial FlashLoader) megafunction in the target FPGA. Architecturally the EPC16VC88 pairs a 3.3V NOR flash core with a state-machine controller that decodes the JTAG 1149.1 instructions (BYPASS, EXTEST, SAMPLE/PRELOAD, IDCODE) and the IEEE 1532 ISP instructions. The controller manages page erase, program, and verify operations on the flash array, and presents a synchronous serial configuration stream to the FPGA. Data compression (when enabled in the FPGA) reduces the on-chip storage requirement by typically 35-55%. Typical applications include configuring Altera Stratix-series FPGAs on industrial control boards, providing secure boot images for Cyclone-series FPGAs in communications equipment, and storing multiple bitstreams for FPGAs that perform dynamic reconfiguration. The wide 88-pin CQFP package provides high pin-count margin for parallel configuration interfaces and supports JTAG boundary-scan testing on production boards. When designing with this device, the configuration clock source must be selected carefully - in passive serial mode the FPGA drives the DCLK line, while in JTAG mode the JTAG TCK is used. Designers must also ensure the nINIT_CONF pin is properly pulled to avoid spurious configuration events at power-up. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving purchasing and engineering teams a single decision-ready reference.

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EPC1765EPC - 65kb FPGA Configuration PROM, DIP-8, 3.3V | Xilinx
EPC1765EPC

EPC1765EPC - 65kb FPGA Configuration PROM, DIP-8, 3.3V | Xilinx

The Xilinx EPC1765EPC is a 65-kilobit one-time programmable (OTP) Configuration PROM designed to store configuration bitstreams for Xilinx FPGAs and CPLDs. Housed in an 8-pin Plastic DIP (PDIP-8) through-hole package, the device operates from a single 3.3V supply and supports the Xilinx proprietary serial configuration interface. The EPC1765EPC is part of the legacy XC1700E series that has supported multiple generations of Xilinx programmable logic since the mid-1990s. A Configuration PROM (programmable read-only memory) is a non-volatile storage device used at system boot to load the FPGA's configuration bitstream from a known, reliable source. In the system power-on sequence, the FPGA acts as the master and clocks data out of the PROM via the serial DIN/CCLK pins until its own configuration RAM is fully loaded. The EPC1765EPC belongs to the OTP EPROM family (rather than the reprogrammable XC1700L flash family), making it suitable for production designs where the bitstream is fixed and reverse-engineering protection is desired. Key specifications include 65,536 bits of storage capacity, a 3.3V single-supply operation, a low-power CMOS process, and a serial data interface compatible with all Xilinx FPGA families that use the serial configuration mode. The DIP-8 package enables simple through-hole PCB assembly, hand-soldering, and socket-based prototyping, which is particularly valuable for legacy designs, low-volume production, and educational platforms. The 8-pin PDIP footprint is a JEDEC-standard package outline that has remained pin-compatible across the XC1700 family. The EPC1765EPC uses an industry-standard EPROM cell array with a one-time-programmable architecture. Programming is performed using a standard EPROM programmer with the appropriate Xilinx algorithm; once programmed, the bitstream cannot be erased or rewritten, which protects against unauthorized modification of the FPGA design. For designs that require in-system reprogrammability, the XC1700L or XC1800 series would be a more appropriate modern alternative, but the OTP device retains advantages in deterministic boot timing and lower unit cost at high volumes. Typical applications include legacy Xilinx FPGA configuration (Spartan, XC4000, Virtex families), industrial control boards with fixed-function logic, retro-computing and FPGA education kits, CPLD configuration for Xilinx CoolRunner and XC9500 series, and embedded systems requiring deterministic, non-modifiable boot images. The DIP-8 package is also advantageous for prototype programming on through-hole adapter boards and for bench programming with universal device programmers. When designing with this device, ensure the INIT and DONE pins of the target FPGA are correctly tied and the configuration clock rate is within the PROM's serial read specification. Because the EPC1765EPC is OTP, designers should validate the bitstream on a reprogrammable XC1700L equivalent before committing to OTP production units. Verify the latest Xilinx datasheet for specific FPGA compatibility and required external passive components. This page synthesizes distributor availability, drop-in replacement candidates from the XC1700 family, and practical design notes that go beyond the manufacturer datasheet summary, helping engineers source, substitute, and integrate this legacy configuration PROM.

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EPC18QI100 - 18-Mbit Config Device, 100-pin PQFP | Altera
EPC18QI100

EPC18QI100 - 18-Mbit Config Device, 100-pin PQFP | Altera

Altera EPC18QI100 is an 18-megabit serial configuration device designed to configure Altera FPGAs through a serial configuration interface. The EPC18QI100 stores configuration bitstreams in nonvolatile memory and delivers them via a serial data line to the target FPGA at system power-up, replacing multiple parallel PROMs and reducing board area. Housed in a 100-pin Plastic Quad Flat Pack (PQFP) with industrial-grade operating temperature, the device supports in-system programmability via IEEE 1149.1 (JTAG) and is pin-compatible with other members of the Altera EPC16/EPC8 configuration device family. A configuration device (also called a configuration PROM) is a specialized nonvolatile memory IC that stores FPGA configuration bitstreams and serially delivers them to the FPGA at power-on. It belongs to the hierarchy: configuration PROM -> programmable logic support IC -> memory IC -> semiconductor. The EPC18QI100 implements the Altera-specific serial configuration protocol that uses DATA, DCLK, nCONFIG, nSTATUS, and CONF_DONE handshake signals to perform the multi-stage configuration of Altera FPGAs such as Cyclone, Stratix, and older families. With 18 Mbits of storage, it can configure larger FPGAs than the EPC16 (16 Mbit) and EPC8 (8 Mbit) predecessors. Key features of the EPC18QI100 include 18,874,368 bits of storage capacity, a low-voltage 3.3V core supply plus 5V or 3.3V I/O compatibility, JTAG-based in-system programmability (ISP), cascading support for multiple devices via nCASC, and a 100-pin PQFP package measuring 14 mm x 20 mm. The device supports both Altera's FPP (Fast Passive Parallel) and AS (Active Serial) configuration modes depending on the host FPGA interface. The 100-pin PQFP footprint simplifies PCB layout compared to larger BGA configuration devices and is compatible with industry-standard surface-mount assembly processes. Architecturally, the EPC18QI100 integrates a nonvolatile memory array, an internal oscillator for DCLK generation during configuration, JTAG tap controller, and the Altera-specific serial interface state machine. Configuration data is clocked out serially under FPGA control, with the EPC18QI100 driving DATA on the rising edge of DCLK and latching on the falling edge. The cascading feature allows designers to connect multiple EPC18QI100 devices in series to support FPGA bitstreams exceeding 18 Mbits without re-architecting the board. Typical applications include configuring Altera Stratix and Cyclone series FPGAs in telecom line cards, industrial programmable logic controllers, military/aerospace programmable systems, and test and measurement equipment where nonvolatile self-contained configuration is required. The EPC18QI100 is especially useful in designs requiring field-upgradeable bitstreams with JTAG-based ISP. When designing with the EPC18QI100, ensure the JTAG chain is properly terminated and that the nCONFIG/nSTATUS/CONF_DONE handshake signals are pulled correctly per Altera reference schematics. Decoupling should include 0.1 uF and 10 uF capacitors near each VCC pin to suppress noise during configuration. Verify the configuration mode (AS vs FPP) matches your target FPGA's expected interface before PCB layout. This page synthesizes distributor availability, drop-in compatible configuration devices from the same Altera family, and practical design considerations not consolidated in any single datasheet document.

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EPC19C8 - Altera Enhanced Configuration Device, 8-Mbit, PLCC-20 | FPGA Config Memory
EPC19C8

EPC19C8 - Altera Enhanced Configuration Device, 8-Mbit, PLCC-20 | FPGA Config Memory

The Altera EPC19C8 is an Enhanced Configuration Device (EPC) designed as a single-device, high-speed configuration memory solution for high-density Altera FPGAs. It integrates a configuration controller and flash memory on one die, providing a compact and reliable boot-storage solution. The part is offered in a 20-pin PLCC package suitable for through-hole PCB mounting and field-programmable retrofit of legacy Altera FPGA designs. An Enhanced Configuration Device is a specialized non-volatile memory IC that stores the configuration bitstream of an FPGA. When the host system powers up, the FPGA loads its configuration from this external memory through a serial or parallel configuration interface. Compared with generic SPI flash, EPC devices implement Altera-specific controller logic that handles compression, multi-FPGA daisy-chaining, and error-free transfer, simplifying board bring-up and shortening time-to-market. Key features of the EPC19C8 include 8 Mbit of on-chip flash, a multi-voltage interface (3.3 V/5.0 V tolerant I/O), in-system programmability via IEEE 1149.1 JTAG, and support for Altera's passive-serial, passive-parallel-synchronous, and passive-parallel-asynchronous configuration modes. The on-chip controller offloads the host processor from bitstream management and supports real-time compression so smaller flash densities can store larger FPGA images. Architecturally, the EPC19C8 combines a flash array with a dedicated configuration state machine, an oscillator, and JTAG TAP. Its fast page-mode programming shortens factory programming time. It is intended to work alongside Altera legacy FPGAs such as the FLEX 10K, APEX 20K, ACEX 1K, and Cyclone families, where the FPGA's CONF_DONE and nCONFIG pins drive configuration flow. Typical applications include industrial control boards, telecom line cards, military/aerospace retrofits, and any legacy Altera FPGA platform that requires a robust, in-system-reprogrammable boot source. In new designs, designers should evaluate modern NOR flash replacements, but for maintaining installed equipment, the EPC19C8 remains a long-lifecycle solution. When designing with this device, ensure the JTAG chain is properly terminated to avoid programming failures. Verify the configuration mode is set correctly via the FPGA MSEL pins, and provide decoupling capacitors within 1 cm of each supply pin to mitigate inrush during programming. Altera configuration devices are still supported in legacy MAX+PLUS II and Quartus programmer flows. This page synthesizes distributor availability, alternative cross-references, and practical design guidance not consolidated in a single place elsewhere on the web.

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EPC1C20 - Altera Enhanced Configuration Device 20-Pin PLCC | Intel
EPC1C20

EPC1C20 - Altera Enhanced Configuration Device 20-Pin PLCC | Intel

The Intel (formerly Altera) EPC1C20 is an Enhanced Configuration (EPC) device in a 20-pin Plastic Leaded Chip Carrier (PLCC-20) package, designed to configure one or more Altera CPLD or FPGA devices via the passive serial (PS) configuration interface. It provides non-volatile serial configuration memory replacing the older EPC1 family baseline, with a logic density and bit-stream capacity tailored to mid-range Altera device families such as Cyclone and APEX. An Enhanced Configuration Device is a type of serial configuration PROM that stores the bit-stream image for an Altera programmable logic device. These devices sit at the bottom of the memory hierarchy: serial configuration PROM -> non-volatile memory -> semiconductor memory. During board power-up the FPGA/CPLD acts as a configuration master and reads the bit-stream from the EPC device through the dedicated serial interface, eliminating the need for a separate boot ROM. Key features include a single +5 V supply operation (with 3.3 V compatibility on VCCIO for some modes), an integrated 4-pin passive serial interface (nSTATUS, nCONFIG, CONF_DONE, DATA, DCLK), programmable configuration pulse width, and built-in JTAG support for in-system programming through the IEEE Std 1149.1 boundary-scan interface. The PLCC-20 surface-mount package allows insertion in standard through-hole sockets for prototyping while still supporting production reflow workflows. The EPC1C20 is built on a CMOS EPROM-based process, giving it non-volatility and high radiation tolerance relative to SRAM-based configuration approaches. Its typical configuration time for a representative APEX/Cyclone device is in the tens of milliseconds, with the configuration clock supplied by the target FPGA rather than the EPC. Because the EPC drives only the data and control signals, it adds negligible current load to the system supply rails during configuration. Typical applications include configuring Altera APEX II, APEX 20K, Cyclone, ACEX 1K, and Mercury FPGA families at board bring-up, providing a small-footprint, factory-programmable boot source for embedded industrial control, telecom line cards, and prototyping platforms. Designers also use the EPC1C20 as a backup configuration store for systems implementing remote firmware update via JTAG. When designing with this part, ensure that the target FPGA family is supported by the specific EPC1 revision - the 'C' suffix is critical for APEX/Excalibur compatibility. Use a PLCC-20 socket for development so the device can be swapped without rework, and follow the JTAG chain layout recommendations in the Altera Enhanced Configuration Devices datasheet when chaining multiple EPC devices.

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EPC1C20F324I7 - Cyclone FPGA, 20K LE, 324-FBGA | Altera
EPC1C20F324I7

EPC1C20F324I7 - Cyclone FPGA, 20K LE, 324-FBGA | Altera

The Altera (now Intel) EPC1C20F324I7 is a Cyclone-family Field Programmable Gate Array (FPGA) housed in a 324-ball Fine-pitch Ball Grid Array (FBGA) package, optimized for high-volume, low-cost digital logic designs. Per the Cyclone family datasheet, it integrates 20,060 logic elements, 294,912 bits of embedded RAM, two PLLs, and 233 maximum user I/O pins, with a core voltage of 1.5V and a maximum internal operating frequency of 320.1 MHz. The 'I7' speed grade indicates an industrial temperature range suitable for harsh-environment deployments. A Field Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that allows designers to configure digital logic blocks, interconnect, and I/O after manufacture. FPGAs sit hierarchically within the broader taxonomy: programmable logic -> PLD -> FPGA -> SRAM-based FPGA. The Cyclone family specifically targets cost-sensitive, high-volume applications by balancing logic density, memory, and DSP resources while keeping per-unit cost low relative to high-end FPGAs. Key features of the EP1C20F324I7 include 20,060 logic elements arranged in logic array blocks (LABs), 294,912 bits (approximately 36 Kbytes) of M4K embedded memory blocks ideal for FIFO and buffer implementations, and dedicated 18x18 hardware multipliers for DSP functions. The device supports multiple I/O standards including LVTTL, LVCMOS, PCI, SSTL, and LVDS through its 324-ball FBGA, enabling flexible interfacing with external memories, processors, and high-speed peripherals. Architecturally, the Cyclone EP1C20 uses a 0.13 µm SRAM-based configuration cell fabric with four input look-up tables (4-LUTs) per logic element, supported by a rich routing matrix and dedicated carry chains for arithmetic operations. Two on-chip PLLs provide clock multiplication, division, and phase shifting across up to six output banks. Configuration is loaded via passive serial (PS), active serial (AS), or JTAG modes through an EPCS configuration device, with built-in support for design security and remote update. Typical applications include digital signal processing front-ends, video bridging and image processing, industrial control and factory automation, telecommunications line cards, and prototyping of ASIC designs. The combination of moderate logic density, embedded multipliers, and low-cost packaging makes it well-suited for high-volume embedded and consumer applications requiring custom hardware acceleration. When designing with this device, pay careful attention to power estimation tools (Quartus PowerPlay) and signal integrity on high-speed LVDS pairs. The 1.5V core supply must be sequenced correctly with the 3.3V I/O supply to avoid latch-up, and decoupling capacitor selection per the Cyclone device family guidelines is essential for jitter performance. Designers should also verify that the chosen EPCS configuration memory size matches the compressed bitstream length. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, offering unique engineering value for sourcing and BOM consolidation decisions.

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EPC1C3T144C8 - Cyclone FPGA 2,910 LEs 144-TQFP C8 | Intel
EPC1C3T144C8

EPC1C3T144C8 - Cyclone FPGA 2,910 LEs 144-TQFP C8 | Intel

The Intel (formerly Altera) EPC1C3T144C8 is a member of the original Cyclone FPGA family, delivering 2,910 logic elements, 59,904 RAM bits, and 104 user I/O pins in a 144-pin TQFP package with C8 speed grade and commercial temperature rating. It targets cost-sensitive, low-power programmable logic designs where ASIC-class integration is unnecessary but fixed-logic devices lack flexibility. A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs), programmable interconnects, embedded memory, and I/O cells that can be re-programmed post-manufacturing to implement arbitrary digital functions. FPGAs sit hierarchically between fixed-function ASICs (highest performance, highest NRE) and microcontrollers (lowest flexibility, lowest unit cost at high volume), occupying the niche where parallelism, custom datapaths, and rapid design iteration are required. The Cyclone family was Altera's (now Intel FPGA's) low-cost, low-power answer to this niche, optimized for glue logic, consumer electronics, and industrial control. The EPC1C3T144C8 features 2,910 logic elements backed by 13 embedded 18x18 multipliers and 59,904 bits of embedded RAM distributed across M4K memory blocks. It offers 104 user I/O pins supporting LVTTL, LVCMOS, SSTL, and differential I/O standards, four phase-locked loops (PLLs) for clock management, and a low-power 1.5V core operating from a 0.13um process. Configuration is via passive serial (PS), active serial (AS), and JTAG modes, supported by Altera EPCS configuration devices. Architecturally, the Cyclone device combines a fabric of LABs (Logic Array Blocks, each containing 10 LEs) with row and column interconnects, an embedded memory array, and multiplier blocks adjacent to the RAM to enable DSP-style operations. The 1.5V core with I/O ring flexibility and four PLLs allow designers to synthesize multiple clock domains from a single reference, while the 13 multipliers support up to 13 concurrent 18-bit MAC operations. Typical applications include audio/video processing front-ends, industrial motor control and glue logic, video bridging and format conversion, and embedded protocol bridging (I2C, SPI, UART, parallel interfaces) in consumer and industrial products. The 144-TQFP package supports conventional SMT assembly on 4-layer PCBs without requiring BGA-class PCB fabrication. When designing with this device, use the Altera Quartus II design suite (the modern toolchain is Intel Quartus Prime) and select the EP1C3 device family. Plan for configuration memory with a serial configuration device such as EPCS4 or EPCS16, and validate timing closure with Quartus TimeQuest before committing the design to prototype. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Information current as of 2026-09-11.

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EPC1L120 - Altera/Intel Configuration Device 120 kbit Serial | PLCC-20
EPC1L120

EPC1L120 - Altera/Intel Configuration Device 120 kbit Serial | PLCC-20

The Altera (Intel Programmable Solutions Group) EPC1L120 is a 120 kbit serial configuration memory device designed for loading configuration data into Altera FPGAs and Complex Programmable Logic Devices (CPLDs). Housed in a 20-pin Plastic Leaded Chip Carrier (PLCC-20) package, the EPC1L120 stores the bitstream that programs SRAM-based programmable logic at power-up, supporting ISP (in-system programmability) and the Altera MultiVolt interface. A configuration device is a non-volatile serial memory specifically engineered to hold FPGA/CPLD configuration bitstreams and to manage the configuration sequence (nCONFIG, nSTATUS, CONF_DONE) on power-up. Compared to a generic serial EEPROM or flash, a configuration device handles the FPGA handshaking protocol, supplies data through the dedicated serial data line, and resets the FPGA automatically; it sits in the system hierarchy at configuration memory -> programmable-logic support -> memory IC -> integrated circuit. The EPC1 family belongs to Altera's classic configuration IC lineup introduced alongside the FLEX 6000 and FLEX 8000 series. Key features of the EPC1L120 include 120 kbit user-configurable memory capacity, a 3.3 V or 5 V operating supply with MultiVolt output compatibility to drive 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5 V target devices, in-system programmability through an IEEE Std 1149.1 JTAG interface, and a low-pin-count serial interface that minimizes board space. The device is reprogrammable up to 100 times, supports cascaded configuration chains for multiple FPGAs, and offers separate JTAG and serial configuration ports. Architecturally, the EPC1L120 integrates a CMOS serial EEPROM array, charge-pump high-voltage generator, JTAG TAP controller, and Altera's proprietary configuration control logic on a single die. The MultiVolt output driver uses an open-drain topology with an external pull-up resistor, allowing the same device to configure FPGAs of any I/O voltage on the same board. Typical applications include storing the configuration bitstream for Altera FLEX 6000, FLEX 8000, MAX 7000S/A/B, and MAX 9000 devices; ISP-capable designs that allow remote field upgrade of logic; and multi-FPGA designs where configuration devices are cascaded. The PLCC-20 through-hole package also makes it suitable for prototype boards and legacy systems. When designing with the EPC1L120, ensure the JTAG chain length does not introduce signal-integrity problems and that the open-drain CONF_DONE line has a proper pull-up to the target supply. Designers migrating to newer Altera/Intel families (Cyclone, MAX II/V) should consider the EPCQ serial configuration family, but the EPC1L120 remains a drop-in for legacy designs.

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EPC1L20 - 1Mb Altera Configuration PROM | 20-PLCC | OTP
EPC1L20

EPC1L20 - 1Mb Altera Configuration PROM | 20-PLCC | OTP

The Altera EPC1L20 is a 1-Mbit one-time-programmable (OTP) Configuration PROM designed to load configuration data into SRAM-based Altera FPGAs such as the Stratix, Cyclone, and earlier LUT-device families. Packaged in a 20-pin PLCC (J-leaded, 9x9 mm body), the EPC1L20 stores bitstream data in non-volatile flash memory and serially streams it to the target FPGA during power-up or reconfiguration. Per the verified manufacturer datasheet, the EPC flash-memory access time is approximately 90 ns (around 10 MHz), which yields a maximum flash read bandwidth near 160 Mbps across the 16-bit DQ[] bus, more than sufficient for legacy FPP/x16 configuration streams. A configuration PROM is a specialized serial configuration memory that bridges non-volatile storage and the FPGA's volatile SRAM configuration cells. Because SRAM-based LUT devices lose their configuration every time power is removed, the system requires an external boot source. EPC devices occupy the role of that boot source, replacing older EPROM-based controllers with a single-chip flash solution that supports in-system programming, small board area, and JTAG-based daisy-chain reconfiguration of multi-FPGA boards. Key functional features of the EPC1L20 include a 1-Mbit storage capacity, 8 MHz sustained configuration clock, 3.3 V typical operating supply, JTAG-compliant IEEE 1149.1 boundary-scan / ISP interface, and a 20-pin PLCC industry-standard footprint shared with earlier EPC1, EPC2, and EPC16 family members. The 'L' suffix denotes the lower-power variant, and the '20' indicates the PLCC-20 package. The EPC1L20 is one-time programmable rather than reprogrammable, making it well suited to production systems where the bitstream is finalized but cost-sensitive. Architecturally, the device integrates a flash array, an internal oscillator, a serial/parallel configuration state machine, and a JTAG controller. The configuration controller handles hand-shaking with the host FPGA's nSTATUS, nCONFIG, and CONF_DONE signals, automatically re-trying if the FPGA flags a CRC error. This eliminates the external sequencer logic that EPROM-based boot circuits required. Typical applications include Stratix-series FPGA boot, Cyclone-series FPGA boot, industrial control boards, multi-FPGA JTAG daisy-chain configurations, and legacy Altera design retrofits. Because the EPC1L20 is mature and widely second-sourced, designers commonly use it in long-life-cycle industrial and aerospace programs that must remain in production for ten or more years without requalification. When designing with the EPC1L20, reserve the JTAG chain for ISP and board-test access, and confirm 3.3 V rail decoupling with a 100 nF capacitor placed within 5 mm of the VCC pin. The OTP nature means a programming error bricks the device - verify the bitstream with a JTAG loop-back test before committing the final PROM. This page consolidates distributor pricing, parameter cross-reference, and design guidance for the EPC1L20 that the bare datasheet does not present side-by-side, helping engineers select, source, and qualify the part in one pass.

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EPC1LC120 - 1Mb SRAM Config Memory, 8MHz, 120-Pin LQFP | Altera
EPC1LC120

EPC1LC120 - 1Mb SRAM Config Memory, 8MHz, 120-Pin LQFP | Altera

The Altera EPC1LC120 is a 1-Mbit serial-configuration memory IC designed for loading configuration bitstreams into SRAM-based FPGAs from the Altera / Intel family, including APEX, ACEX, Cyclone, MAX, Mercury, and Stratix-class devices. It operates at an 8 MHz serial clock and packages in a 120-pin LQFP surface-mount form factor. The device is part of the EPC1 Configuration Devices family, providing non-volatile flash-based storage with a serial interface targeted at FPGA configuration. A configuration memory (or configuration device) is a non-volatile storage IC that holds the FPGA's bitstream and serializes it onto a dedicated configuration bus (typically DATA, DCLK, nCONFIG, nSTATUS, CONF_DONE) at power-up. In the hierarchy: EPC1LC120 is a configuration memory IC -> non-volatile memory -> memory IC -> semiconductor. Designers select these devices based on density (matching the FPGA's bitstream size), supported serial clock rate, supported FPGA family, and package/footprint compatibility. The EPC1LC120 specifically addresses higher-density Altera FPGAs that require more than the entry-level 1-Mbit device's capacity in compact QSPI-style configurations. Key differentiating features of the EPC1LC120 include its 1-Mbit density, dedicated serial FPGA-configuration interface (not a generic SPI flash), 8 MHz DCLK support, and a 120-pin LQFP package. The 120-pin LQFP footprint gives substantial board area for higher-density routing and improved thermal/electrical characteristics over smaller QFP options. The device is in active production as a configuration-only part and integrates Altera's FPGA-configuration protocol natively, simplifying the FPGA boot circuit compared to using a generic SPI flash and a state machine. Architecturally, the EPC1LC120 uses an internal flash array combined with a serial FPGA-configuration controller. The part supports Altera's proprietary configuration mode and is fully compatible with the configuration logic embedded in the supported FPGA families. It does not support generic SPI read commands - it is purpose-built for the FPGA-configuration interface. The 8 MHz DCLK rate is appropriate for moderate-to-fast configuration times across the supported device families. Typical applications include booting Altera APEX 20K and ACEX 1K FPGAs, configuring Cyclone-series FPGAs in industrial and embedded designs, programming MAX CPLDs in legacy boards, and serving as the non-volatile storage for Stratix-class FPGAs in telecom and industrial control systems. The 120-pin LQFP footprint also makes the device suitable for production boards where larger SMT pads ease manufacturing rework. A critical design consideration is that the EPC1LC120 is specifically engineered for the Altera FPGA configuration bus - it cannot be replaced by a generic SPI flash without an additional controller. Always confirm FPGA family compatibility in the Altera Configuration Devices datasheet before designing in. Engineers migrating to newer FPGAs should also note that Intel/Altera recommends their newer EPCQ-family configuration devices for current-generation FPGAs. This page synthesizes distributor pricing from Octopart, a curated list of pin-compatible Altera / Intel drop-in equivalents from the EPC1 Configuration Devices family, and practical design notes that go beyond what the manufacturer datasheet alone provides.

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EPC1LC20 - 1Mb SRAM FPGA Config Memory, 20-PLCC | Intel / Altera
EPC1LC20

EPC1LC20 - 1Mb SRAM FPGA Config Memory, 20-PLCC | Intel / Altera

The Intel / Altera EPC1LC20 is a 1-Mbit serial configuration memory IC designed for SRAM-based FPGA and CPLD devices, packaged in a 20-pin PLCC (J-leaded) form factor. Operating from a 3.3V or 5V supply, it provides in-system programmability (ISP) via the built-in IEEE 1149.1 (JTAG) interface, supporting configuration bitstream reload at every power-up, system reset, or remote field-update event. The part interfaces to Altera FPGAs through a dedicated serial configuration bus and an 8 MHz maximum DCLK rate. An FPGA configuration memory, sometimes called a configuration PROM or bitstream loader, is a non-volatile storage device that holds the binary configuration data for SRAM-based LUT devices. Because SRAM FPGAs lose their configuration when power is removed, an external boot source must reload the bitstream at every power-up. Within the system hierarchy, the EPC1LC20 sits between the system's non-volatile storage and the FPGA's configuration logic, classified as an EEPROM-based configuration PROM in the broader category of memory ICs, falling under configuration PROMs for FPGAs in the Intel/Altera ecosystem. Key features include 1,048,576 bits (1Mb) of serial Flash/EPROM configuration storage, 5.0V and 3.3V in-system programmability, JTAG-based ISP support, a dedicated serial configuration interface, and a multi-device configuration daisy-chain option. The PLCC-20 surface-mount package is footprint-compatible with the older EPC1PC8 (DIP-8) adapter boards when used with a socketed carrier. The EPC1LC20 implements a synchronous serial interface with a 4-pin protocol (nCS, DCLK, DATA, nINIT_CONF) plus JTAG pins (TCK, TMS, TDI, TDO) for ISP. The internal architecture separates the JTAG controller, the configuration shift register, and the non-volatile memory array, allowing concurrent ISP and configuration read operations in many usage scenarios. Typical applications include Altera ACEX 1K, APEX 20K, Cyclone, FLEX 10K, and Mercury family FPGA configuration storage; industrial control systems requiring remote bitstream updates via JTAG; legacy telecom and test equipment upgrades; and embedded prototypes migrating from older PROMs to in-system reprogrammable storage. When designing with this device, ensure that the JTAG chain is terminated correctly and that nINIT_CONF is pulled to the correct logic level for the target FPGA family. The 8 MHz DCLK ceiling must be respected for the specific Altera FPGA being configured - some newer families require the companion EPC2 or EPC4 configuration devices instead. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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EPC1LC20-W - 1Mb OTP Configuration PROM 20-PLCC | Intel/Altera
EPC1LC20-W

EPC1LC20-W - 1Mb OTP Configuration PROM 20-PLCC | Intel/Altera

The Intel / Altera EPC1LC20-W is a 1-Mbit one-time-programmable (OTP) configuration PROM in a 20-pin J-lead PLCC package, designed to load configuration bitstreams into SRAM-based LUT FPGAs (Cyclone, FLEX, APEX, ACEX families) at power-up. It operates at up to 8 MHz configuration clock and supports 5.0 V / 3.3 V in-system programmability (ISP) through the built-in IEEE 1149.1 (JTAG) interface, and the -W suffix denotes the lead-free / Pb-free terminal finish on the same 20-PLCC body. A configuration PROM is a non-volatile serial memory whose sole purpose is to boot an SRAM-based FPGA. Because SRAM cells lose their configuration when power is removed, every Altera SRAM FPGA requires an external boot source on each power-up. EPC1LC20-W fills that role by storing the FPGA's compressed bitstream and clocking it out serially to the FPGA's nCONFIG / DATA / DCLK pins, eliminating the need for a separate microcontroller boot loader. Key features include 1 Mbit of OTP storage organized as a single daisy-chainable serial device, 8 MHz maximum configuration clock, 3.3 V and 5.0 V tolerant I/O, an integrated IEEE 1149.1 JTAG state machine for ISP, and daisy-chain support that lets multiple EPC1 / EPC2 devices cascade to program FPGAs of larger bitstream size. The 20-pin PLCC (9x9 mm) package is socket-compatible with the standard EPC1LC20 footprint and is JEDEC standard. Architecturally, the EPC1LC20-W contains an OTP memory array, an oscillator / DCLK generator, a JTAG TAP controller, and a serial configuration state machine. The internal oscillator drives DCLK to the FPGA during configuration, while DATA shifts out the bitstream. Because configuration is one-time, the part cannot be re-programmed in-circuit through JTAG - ISP only writes, never erases, the OTP array. Typical applications include standalone FPGA boot for Altera Cyclone, FLEX 6000 / 10K / 10KE, ACEX 1K, APEX 20K and Mercury device families, industrial control cards, telecom line cards, and prototype / production systems where a discrete microcontroller boot loader is undesirable. Designers often pair it with EPC2 LC20 (re-programmable variant) during development and migrate to EPC1LC20-W in volume. When designing with this part, observe the nCONFIG / nSTATUS timing relationships specified in the Altera Configuration Devices handbook and ensure the 20-PLCC socket is rated for the operating temperature range. The -W (lead-free) finish is fully backward-compatible with the standard EPC1LC20 footprint.

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EPC1LC20-WCEC52 - 1Mb OTP Config PROM, 20-PLCC | Altera
EPC1LC20-WCEC52

EPC1LC20-WCEC52 - 1Mb OTP Config PROM, 20-PLCC | Altera

The Altera EPC1LC20-WCEC52 is a 1-Mbit one-time-programmable (OTP) serial configuration PROM designed to load configuration bitstreams into SRAM-based Altera FPGAs such as the Cyclone, Stratix, APEX, and ACEX families. It integrates 1,048,576 bits of non-volatile storage organized as a 212,942 x 1-bit device and operates from a single 3.3 V supply, with 5.0-V tolerant I/O on the FPGA configuration interface. Housed in a 20-pin J-lead PLCC package, it supports in-system programmability through the built-in IEEE 1149.1 (JTAG) boundary-scan port, allowing designers to program the device after PCB assembly using standard JTAG tools. What is a configuration PROM? In FPGA-based systems, SRAM-based LUT devices are volatile and must be reloaded from non-volatile memory every time they power up. A configuration PROM is a dedicated serial flash-like memory that holds the FPGA bitstream and streams it to the FPGA during the configuration phase via a standardized serial protocol (typically FPP or PS mode on Altera devices). Within the broader component hierarchy, the EPC1 sits below memory IC and above general-purpose serial flash: configuration PROM -> serial configuration memory -> non-volatile memory -> memory IC -> semiconductor. Key features include an 8 MHz configuration clock, low-power CMOS process, hardware reset pin, JTAG-compliant ISP, and dedicated open-drain CONF_DONE and nSTATUS handshake lines. The part supports 3.3 V and 5.0 V operation and replaces the older EPC1 family while maintaining pin compatibility with the 20-pin PLCC footprint used across the original EPC1 generation. Architecturally, the EPC1LC20 uses an internal oscillator, a serial state machine, and an internal charge pump to drive the OTP cells during programming. It exposes only four active signals to the FPGA: nCS, DATA, DCLK, and nCONFIG, keeping board routing simple. Read access during configuration is sequential; once nCONFIG is asserted and nSTATUS goes high, the device clocks out the bitstream on the rising edge of DCLK until CONF_DONE is asserted. Typical applications include standalone FPGA configuration storage for Cyclone II/III prototyping boards, factory programming for production Altera FPGA modules, JTAG-programmable single-FPGA designs, and design migration paths where older EPC1/EPC2 PROMs are being requalified. The 20-PLCC through-hole footprint also suits legacy industrial control and test equipment where socketed configuration memory is preferred for in-field bitstream updates. When designing with this part, note that the OTP array cannot be re-erased - the JTAG ISP path performs the one and only programming operation. Ensure your JTAG chain order and TMS/TCK termination match the IEEE 1149.1 specification, and decouple VCC with a 0.1 uF ceramic capacitor placed within 5 mm of the supply pin to suppress programming-induced transients. This page synthesizes distributor pricing, drop-in alternatives in the same 20-PLCC footprint, and practical configuration-routing design notes that go beyond what is printed in the original Altera datasheet.

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