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EPC1441PC8 - 440Kb OTP FPGA Config PROM | 8-PDIP | Altera
The Altera EPC1441PC8 is a one-time-programmable (OTP) configuration PROM that stores 440 kilobits of SRAM-based FPGA configuration data in an 8-pin PDIP through-hole package. It targets legacy Altera FPGA families including FLEX 8000, FLEX 10K, APEX 20K, and Mercury, where deterministic cold-boot configuration must be sourced from non-volatile memory on every power-up. The device uses a simple serial interface clocked at up to 8 MHz, allowing full configuration of mid-density FPGAs in tens of milliseconds. A configuration PROM is a non-volatile memory device that contains the bitstream an SRAM-based FPGA must receive at every power-up or reconfiguration event. Because SRAM cells lose their state when power is removed, an external boot memory is mandatory. Configuration PROMs sit beneath FPGAs in the boot memory hierarchy: bitstream -> configuration PROM -> SRAM-based FPGA -> loaded logic design. Enhanced configuration devices like the EPC1441 integrate both the configuration controller and the flash array in a single package, simplifying board layout versus discrete flash plus controller solutions. Key features include 440 Kbit storage (approximately 55 Kbytes), an 8 MHz maximum serial configuration clock, 3.3 V typical operating supply, industrial temperature range support, and Altera's enhanced configuration protocol compatible with FLEX, APEX, and Mercury device families. The 8-pin PDIP package offers easy through-hole assembly and user-friendly pinout for prototype, legacy, and maintenance applications. The internal architecture divides the die into a configuration controller and a flash memory array. The controller handles serial interface timing, device addressing, and FPGA handshaking using the Altera-specific configuration protocol. The flash array stores the user bitstream; on FPGA nSTATUS/nCONFIG assertion, the PROM serially shifts data to the FPGA's DATA0/DCLK pins. This single-device approach eliminates external controllers and reduces BOM cost. Typical applications include Altera FLEX 8000 boot memory, FLEX 10K / APEX 20K configuration storage, legacy industrial control boards, factory automation retrofits, and military/aerospace systems requiring OTP-only storage to prevent bitstream modification. The PDIP package is especially valuable for maintenance of legacy systems where surface-mount replacements are impractical. Designers should verify that the 440 Kbit capacity is sufficient for their target FPGA - the part is sized for mid-density FLEX 10K devices; high-density APEX 20K designs may require multiple devices or larger EPC16/EPC8 PROMs. The OTP nature means the device cannot be reprogrammed - engineering samples require new parts for each iteration.
EPC1441PI8 - 440kb OTP Configuration PROM for FPGAs | Intel
The Intel EPC1441PI8 is a 440-kilobit one-time-programmable (OTP) configuration PROM in an 8-pin PDIP package, designed to configure SRAM-based Altera/Intel FPGA families including APEX II, APEX 20K (20K/20KC/20KE), Mercury, ACEX 1K, FLEX 6000, FLEX 10KE, and FLEX 10KA. It uses a simple 4-pin serial interface (nSTATUS, nCONFIG, DCLK, DATA0) and operates from a single 5.0 V supply. A configuration PROM is a non-volatile memory device whose purpose is to store the FPGA bitstream and stream it into the FPGA at power-up or after a reconfiguration event. Within the broader hierarchy, configuration PROMs sit beside boot flash memories in the FPGA configuration-memory taxonomy: configuration PROM -> non-volatile memory -> memory IC -> semiconductor. Engineers select OTP PROMs when the bitstream is finalized and cost-sensitive, reserving in-system programmable flash for designs that require remote field updates. Key features of the EPC1441PI8 include 440,800 bits of storage (sufficient for the largest supported FPGA bitstreams), a 5.0 V single-supply interface, and support for cascaded multi-device configuration chains via the nCASC output. The device supports simple serial configuration with an industry-standard 4-wire protocol and provides cascading for larger or multi-FPGA designs. Programmability is achieved through a dedicated programmer such as the Altera Logic Programmer (PL-PCSPN08) or compatible third-party tools, after which the device retains the bitstream for the lifetime of the product. Architecturally, the EPC1441PI8 implements an internal oscillator that derives DCLK and a state machine that controls the serial data stream. Because configuration is one-time only, the device does not require any external programming voltage rail - this simplifies board design compared to UV-erasable PROMs. The 8-pin PDIP form factor also makes it easy to socket for prototype rework, which is useful in laboratory and small-volume production environments. Typical applications include configuring legacy Altera APEX 20K and FLEX 10K design boards, industrial control systems with fixed logic, factory automation equipment, telecommunications line cards, and test-and-measurement fixtures. The wide compatibility list makes the EPC1441PI8 a common single-source configuration device for many older Altera reference designs. When designing with the EPC1441PI8, ensure that the nCONFIG/nSTATUS/DCLK/DATA0 traces are length-matched and routed away from switching power lines to avoid configuration failures during power-up. The 5.0 V supply must be stable before configuration begins; designers typically add a small RC delay or supervisor to guarantee FPGA VCCINT is valid first. Because the device is OTP, any bitstream change requires physical device replacement or a socketed layout. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Engineers can quickly evaluate same-brand and cross-brand pin-compatible substitutes, application suitability, and procurement options in a single reference.
EPC1441PI8N - 440Kb OTP Config PROM, 8-PDIP | Altera / Intel
The Altera EPC1441PI8N is a 440-Kbit one-time-programmable (OTP) configuration memory device supplied in an 8-pin PDIP through-hole package, designed to store the configuration bitstream of legacy SRAM-based Altera FLEX/APEX FPGAs. It provides 440,800 bits of non-volatile storage and is part of the EPC1441 family of configuration PROMs that boot an FPGA at power-up through a serial configuration interface. A configuration PROM is a specialized non-volatile memory device whose sole purpose is to hold the FPGA's configuration bitstream so the FPGA can self-load after power-up. Unlike a generic EEPROM or Flash, a configuration PROM implements a vendor-specific serial protocol (in Altera's case the PS, FPP, or passive serial interface) and is sized in bits, not bytes, to match the target FPGA's bitstream length. EPC1441 sits at the top of the EPC1441/EPC1213/EPC1064 family, offering the largest density to support FLEX10KA and APEX20K family devices, while EPC1213 (212Kb) and EPC1064 (65Kb) serve smaller FPGAs in the same generation. Key features include 440,800-bit storage capacity, single 5.0V supply operation (VCC = 5.0V nominal, compatible with 5V-tolerant FPGA configuration pins), a low-power CMOS standby mode with ICCSTBY of approximately 50 uA, and an industrial operating temperature range of -40C to +85C. The OTP cell is programmed via a standard PROM programmer before PCB assembly; once programmed, the device powers up the FPGA in <100 ms through the Altera serial configuration chain. The 8-pin PDIP package is pin-compatible with the EPC2 and EPC1 upgrade paths. Architecturally, EPC1441PI8N uses a poly-fuse OTP array organized as a long serial shift register clocked by DCLK from the FPGA. The FPGA drives nCONFIG low-to-high at power-up, the PROM presents its first bit on DATA, and the FPGA clocks DCLK to shift the bitstream in. When configuration completes, the PROM enters standby to minimize system power draw, an important consideration in power-sensitive designs. Typical applications include legacy FLEX10K, FLEX10KA, FLEX6000, and APEX20K FPGA configuration memory in industrial control systems, telecommunications infrastructure, and test-and-measurement equipment. The 8-PDIP package is preferred for through-hole retrofits, prototype boards, and legacy replacements where SMD-only EPC1441LC20 or EPC1441PC8 variants are not drop-in. When designing with this device, note that the OTP cell must be programmed on a standalone programmer prior to PCB mounting because in-system programming is not supported. For new designs targeting modern Intel/Altera Cyclone or MAX series FPGAs, consider serial Flash-based configuration (EPCS or EPCQ devices) instead of legacy PROMs.
EPC1441PI8W - 440kb OTP Configuration PROM for FPGAs | Intel
The Intel (formerly Altera) EPC1441PI8W is a 440 Kbit one-time-programmable (OTP) serial configuration PROM designed to load the configuration bitstream into SRAM-based FPGAs from the APEX II, APEX 20K, APEX 20KC, APEX 20KE, Mercury, ACEX 1K, FLEX 6000, FLEX 10KE, and FLEX 10KA device families. It is housed in an 8-pin PDIP through-hole package and operates from a single 3.3 V supply. A configuration PROM is a non-volatile memory device that stores the FPGA's bitstream and serially shifts it into the FPGA at power-up through a four-pin interface (nSTATUS, nCONFIG, DCLK, and DATA0). This eliminates the need for a separate boot ROM or microcontroller bootloader, simplifying board bring-up and shortening time-to-market for programmable logic designs. The EPC1441 family is positioned in the OTP PROM hierarchy above smaller EPC1064/EPC1213 devices and below larger EPC2/EPC4/EPC8/EPC16 in-system-programmable alternatives. Key features include a 4-pin serial configuration interface, 440 Kbit user-programmable storage, low-power CMOS process, industrial operating temperature range, and simple read-only behavior after programming. The OTP architecture means each device can be programmed exactly once, which is well-suited to production FPGA designs where the bitstream is finalized. The W suffix denotes tape-and-reel packaging for high-volume assembly. Typical applications include factory programming of ACEX 1K and FLEX 10K development boards, APEX 20K series carrier cards, embedded prototyping platforms using legacy Altera FPGAs, and industrial controllers with Mercury FPGAs. The DIP-8 form factor remains popular in through-hole education and hobbyist projects where socketed programming is convenient. Engineering note: the W suffix variant differs from EPC1441PI8N only in packaging orientation and is fully electrically identical.
EPC1441PS8 - 440Kb Altera Enhanced Configuration PROM | Intel (Altera)
The Altera (now Intel) EPC1441PS8 is an enhanced configuration device (EPC1441) in an 8-pin SOIC (PS8 / 150-mil) package, providing 440 kilobits of one-time-programmable flash storage used to configure Altera SRAM-based FPGAs such as APEX II, APEX 20K (including APEX 20K, 20KC, 20KE), Mercury, ACEX 1K, FLEX 6000, FLEX 10KE, and FLEX 10KA devices. According to the original Altera datasheet excerpt, the core of an enhanced configuration device is divided into two major blocks: a configuration controller and a flash memory array. The configuration controller drives the FPGA serial DATA, DCLK, and nSTATUS/nCONFIG handshake, while the flash memory stores the FPGA bitstream. An EPC (Enhanced Configuration) PROM is a serial configuration memory designed to load the configuration bitstream of an SRAM-based FPGA at power-up. Because SRAM FPGAs lose their configuration when power is removed, they require an external non-volatile boot memory. EPC PROMs sit in the FPGA boot chain alongside the system controller and supply the bitstream through a 4-pin interface: nCS, OE, DATA, and DCLK. They belong to the broader taxonomy: configuration PROM -> non-volatile memory -> memory IC -> integrated circuit. Key features of the EPC1441PS8 include a 4-pin serial configuration interface that is electrically compatible with all Altera FLEX, ACEX, APEX, and Mercury FPGA families. It provides a built-in address counter and internal oscillator, so the host MCU or FPGA only has to enable the chip via nCS and OE to start streaming the bitstream. Tri-state DATA output allows multiple devices to share the configuration bus. The PS8 (SOIC-8) package is the smallest Altera enhanced-configuration option and fits easily on compact daughter cards. Compared to older non-enhanced EPC PROMs, the EPC1441 supports faster DCLK rates and the new error-handling handshake for APEX II and Mercury devices. The architecture combines a flash array with a hard-wired configuration controller that performs nCS/OE gating, address sequencing, and parallel-to-serial conversion. The internal oscillator generates the DCLK stream during configuration, freeing the FPGA from driving the clock. Flash cells store the bitstream with one-time programmability, suitable for production volumes where reconfiguration in the field is not required. Typical applications include configuring an APEX 20K200, FLEX 10K50, or Mercury EP1M350 on a system board at power-up, production JTAG-less FPGA boot, and embedded designs where a compact SOIC-8 boot memory is preferred over a larger PLCC package. The device is also used as a primary boot source when the system MCU hosts the bitstream image. When designing with the EPC1441PS8, ensure the SOIC-8 (PS8) footprint is laid out for 150-mil body width and that the nCS/OE lines are properly sequenced to the FPGA nCONFIG/nSTATUS handshake. Use 3.3V supply and respect the operating-requirements DC input limits (undershoot to -2.0 V, overshoot to 7.0 V, periods < 20 ns) specified in the original Altera data book. The EPC1441 is OTP - verify the bitstream before programming. This page synthesizes current distributor pricing, same-brand (Altera/Intel) drop-in alternatives, and practical design notes not found in the bare manufacturer datasheet.
EPC1441T32 - 440kb OTP Configuration PROM, 32-TQFP | Intel / Altera
The Intel / Altera EPC1441T32 is a one-time programmable (OTP) configuration PROM in a 32-pin TQFP (7x7 mm) package, designed to store and stream configuration bitstreams to high-density Altera FPGAs. The device holds 440 kb of configuration memory and uses a simple 4-pin serial interface (nSTATUS, nCONFIG, DCLK, DATA0) to program target FPGAs in the ACEX 1K, APEX II, APEX 20K, APEX 20KC, APEX 20KE, Mercury, FLEX 6000, FLEX 10KE, and FLEX 10KA device families. EPC1441T32 is the tape-and-reel TQFP variant of the broader EPC1441 family. An FPGA configuration PROM is a non-volatile memory device that holds the FPGA's bitstream and loads it at power-up through a dedicated serial configuration bus. Configuration PROMs sit at the bottom of the FPGA-boot memory hierarchy: external flash > configuration PROM > FPGA SRAM configuration cells. They are critical for deterministic, low-pin-count FPGA bring-up in production systems where JTAG or processor-driven configuration is impractical. Key features of the EPC1441T32 include 440 kb of OTP storage, a 4-pin interface, built-in voltage compatibility with both 3.3 V and 5.0 V FPGA configuration banks, and industrial operating-temperature support on selected variants. The device uses an internal oscillator so no external clock source is required on the PCB, simplifying layout. The 32-pin TQFP package supports surface-mount assembly with hand-solderable leads and is well suited to mid-density FPGA reference designs and legacy FLEX 10K / APEX 20K boards. Typical applications include legacy Altera FPGA configuration memory, factory programming stations for FLEX 10K and APEX 20K reference designs, and board-level bring-up of ACEX 1K and Mercury designs. The device is also commonly retained as a configuration source on long-lifecycle industrial controllers and test fixtures where redesigning away from FLEX 10K FPGAs is undesirable.
EPC1441TC-32 - 440kb OTP Configuration PROM | Intel / Altera
The Intel / Altera EPC1441TC-32 is a 440 kb One-Time-Programmable (OTP) configuration PROM designed to configure high-density SRAM-based FPGAs including APEX II, APEX 20K, APEX 20KC, APEX 20KE, Mercury, ACEX 1K, FLEX 6000, FLEX 10KE, and FLEX 10KA device families. Housed in a 32-pin TQFP (7x7 mm) package, this enhanced configuration device combines a flash-based configuration controller with non-volatile memory in a single die, eliminating the need for separate controller logic on the board. What is a Configuration PROM? A configuration PROM (Programmable Read-Only Memory) is a non-volatile memory device used to store the bitstream that loads into an SRAM-based FPGA at power-up. Because SRAM FPGAs lose their configuration when power is removed, an external boot memory such as the EPC1441 is required to reload the device on each power cycle. The EPC1441 family is specifically the "enhanced configuration device" line from Altera (now Intel), targeting high-density FPGAs that exceed the bitstream size of simpler serial configuration EPROMs (EPC1, EPC2). These devices sit in the boot-memory hierarchy: PROM -> FPGA configuration interface -> FPGA SRAM cells. Key features include 440 kb storage density (sufficient for the largest APEX and Mercury device bitstreams), a simple 4-pin serial interface to the target FPGA (DATA, DCLK, nCS, nINIT_CONF), 3.3 V or 5 V supply operation, in-system programmability via JTAG, and support for cascading multiple devices to configure FPGAs requiring bitstreams larger than 440 kb. The internal flash-based controller handles the serial configuration handshake autonomously after power-up, freeing the FPGA companion device from any host-CPU involvement during boot. The architecture splits the die into two major functional blocks: a configuration controller implementing the Altera serial configuration protocol, and a flash memory array holding the configuration bitstream. This integration yields a single-device, high-speed configuration solution with no external glue logic, simplifying PCB layout for legacy Altera FPGA designs in industrial, telecom, and test equipment. Typical applications include APEX II, APEX 20K, Mercury, ACEX 1K, and FLEX 10K series FPGA boot memory in industrial controllers, telecom line cards, and legacy test-and-measurement platforms where the original configuration chain must be preserved during repair or refurbishment. When designing with the EPC1441, note that the part is OTP — the configuration bitstream can be loaded once and locked. For designs requiring re-programmability or field upgrades, an EPC2 or EPC4 (re-programmable enhanced configuration device) should be substituted. This page synthesizes distributor stock data, drop-in alternatives from the Altera / Intel enhanced configuration device family, and practical design notes not aggregated on the manufacturer product page.
EPC1441TC32 - 440Kb OTP FPGA Config PROM | Altera | 32-TQFP
The Altera EPC1441TC32 is a 440-Kbit one-time-programmable (OTP) enhanced configuration device that stores configuration bitstreams for SRAM-based Altera/Intel FPGAs in a 32-pin Thin Quad Flat Pack (TQFP) package measuring 7 mm x 7 mm. It is part of the EPC1441 family of configuration PROMs, designed as a single-device, high-speed, advanced configuration solution for very high-density FPGAs. What is a configuration PROM? A configuration PROM is a non-volatile memory device that stores FPGA bitstream data and serializes it to the target FPGA at power-up via a dedicated configuration interface (typically Altera's passive serial, fast passive parallel, or passive parallel asynchronous schemes). Because SRAM-based FPGAs lose their configuration when power is removed, a configuration PROM provides the boot image that the FPGA loads on every power-up, sitting between system power and the FPGA's CONF_DONE/nCONFIG pins. Configuration PROMs sit inside the hierarchy: PROM -> non-volatile memory -> memory IC -> integrated circuit -> semiconductor. Key features of the EPC1441TC32 include a 440-Kbit (55,000 byte) flash-based storage core, a 16.7 MHz internal oscillator that supports the FPGA configuration clock domain, and 5.0 V / 3.3 V in-system programmability (ISP) through the built-in IEEE 1149.1 JTAG interface. The device supports daisy-chain configuration of multiple FPGAs and is compatible with 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 device families. The internal architecture is divided into two major blocks: a configuration controller and the flash memory array. The controller handles the JTAG ISP, the serial configuration clock generation, and the FPGA handshaking via nSTATUS, nCONFIG, and CONF_DONE signals. The flash memory stores the compressed or uncompressed bitstream; the controller reads it out sequentially on FPGA request. The EPC1441 family uses page-mode programming to accelerate ISP, reducing factory programming time compared with byte-mode legacy EPC devices. Typical applications include boot-configuration storage for industrial PLC FPGA controller boards, telecommunications line-card FPGAs, military/aerospace single-board computers using Stratix or APEX devices, and legacy industrial systems requiring long-life-cycle OTP memory. The OTP nature makes the device well suited to designs where the bitstream is finalized at production and never requires field update. When designing with the EPC1441TC32, observe JTAG chain ordering when the FPGA shares the JTAG bus - the PROM must appear in the expected BSDL scan position. Decouple VCC with a 0.1 uF ceramic capacitor placed within 5 mm of the package pin, and respect the 5 V / 3.3 V I/O tolerance when interfacing to a 2.5 V or 1.8 V FPGA bank. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
EPC1441TC32N - 440kb OTP Configuration PROM | Altera TQFP-32
The Altera EPC1441TC32N is a 440,800-bit one-time-programmable (OTP) serial Configuration PROM designed to load configuration bitstreams into SRAM-based Altera LUT devices such as ACEX 1K, APEX 20K (including 20K, 20KC, 20KE), APEX II, Mercury, FLEX 6000, FLEX 10KE, and FLEX 10KA. The device is housed in a 32-pin TQFP (7x7 mm) surface-mount package and operates from a 3.0 V to 3.6 V (3.3 V nominal) supply per the manufacturer datasheet. A configuration PROM is a non-volatile memory device used at board power-up to deliver FPGA bitstream data through a simple serial interface, eliminating the need for parallel boot PROMs or microcontroller bootloaders. EPC1441TC32N belongs to Altera's enhanced configuration device family (EPC1441), which uses a compact 4-pin interface (DATA, DCLK, nCS, OE) and supports daisy-chaining of multiple PROMs for larger bitstreams. The 440,800 x 1 organization is sufficient for mid-density FPGAs and is engineered for synchronous serial data transfer. Key features include a 16.7 MHz maximum DCLK frequency, 5.0 V tolerant I/O on legacy variants, low standby current of approximately 30 uA, and JTAG-friendly boundary-scan support. The device is programmed once at board manufacture and is intended for production environments where field upgrades are not required. The TQFP-32 7x7 mm package provides a low-profile, surface-mountable footprint compatible with hand-soldering and reflow. EPC1441TC32N is internally organized as 440,800 bits x 1 with 8-pin interface logic for autonomous FPGA configuration at reset. Its architecture uses Altera's proprietary serial protocol that simplifies board layout by reducing configuration pin count to four, allowing compact routing on multi-FPGA boards. Typical applications include configuring ACEX 1K and APEX 20K FPGAs in industrial control boards, telecom line cards, and legacy Altera-based prototyping platforms. The 440 kb capacity matches the bitstream size of mid-density APEX 20K devices. Designers should ensure the target FPGA is in the supported device list before selection. When designing with EPC1441TC32N, observe the 3.3 V VCC requirement and route the 4-wire serial bus with matched trace lengths to minimize skew on DCLK and DATA. For board-level configuration, OE and nCS must be driven by the FPGA's configuration controller, not by an external MCU.
EPC1441TI32 - 440kb OTP Config PROM for FPGAs | Altera
The Altera EPC1441TI32 is an OTP (One-Time Programmable) serial configuration PROM designed to store and load configuration data for SRAM-based Altera/Intel FPGAs. It provides 440,800 x 1-bit (approximately 440 kb) of non-volatile storage in a 32-pin TQFP (7 x 7 mm) package with 5.0 V operation and industrial temperature grade. The device is part of Altera's EPC series configuration memory family used to bootstrap LUT-based FPGA devices at power-up. An FPGA configuration PROM is a specialized serial memory that holds the FPGA's bitstream. SRAM-based FPGAs (such as Altera ACEX 1K, APEX, Cyclone, Cyclone II, Stratix, Stratix II, and FLEX families) lose their configuration when power is removed, so they require an external non-volatile boot source. The EPC1441TI32 answers this need with a low-pin-count serial interface, factory or user-programmable OTP cells, and automatic cascade support for multi-device configuration chains. Key features include a 90 ns access time (approximately 10 MHz flash read bandwidth), 5.0 V single-supply operation, industrial operating temperature range, and a serial data interface that streams the configuration bitstream to the FPGA's MSEL/AS configuration pins. The device supports Altera's Active Serial (AS) configuration mode and provides automatic cascading when multiple PROMs are required for larger FPGA bitstreams. Technically, the EPC1441TI32 uses CMOS process technology with one-time-programmable flash cells, exposing only DATA, DCLK, nCS, nCASC, OE, and RESET pins to the FPGA. The 16-bit flash data bus DQ[] at 10 MHz yields roughly 160 Mbps of configuration bandwidth, which is sufficient for most legacy Altera FPGA configuration needs but slower than modern Stratix FPP (Fast Passive Parallel) 100 MHz modes that require dedicated parallel PROMs. Typical applications include configuring legacy Altera ACEX 1K, APEX 20K, FLEX 10K, Cyclone, Cyclone II, Stratix, Stratix II, Mercury, and Arria GX FPGAs in industrial, telecom, and embedded systems. The wide industrial temperature range makes it suitable for factory automation, test equipment, and ruggedized embedded platforms. When designing with this device, ensure the FPGA's MSEL pins are strapped to select Active Serial (AS) configuration mode, and verify that the EPC1441TI32's 440 kb capacity exceeds the target FPGA's compressed bitstream size. For larger designs, multiple EPC PROMs can be cascaded using the nCASC pin. This page synthesizes distributor pricing, drop-in Altera/Intel alternatives, configuration pinout details, and practical design guidance not found in the standalone datasheet, helping engineers shorten the FPGA boot-circuit design cycle.
EPC1441TI32N - 440Kb FPGA Config PROM, 32-TQFP | Intel / Altera
The Intel (formerly Altera) EPC1441TI32N is a 440-kilobit one-time-programmable (OTP) serial configuration memory designed to store the configuration bitstream of SRAM-based FPGAs such as 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 device is housed in a 32-pin Thin Quad Flat Pack (TQFP-32, 7x7 mm) and operates from a single 3.3 V supply, with in-system programmability supported at both 5 V and 3.3 V through the built-in IEEE 1149.1 (JTAG) interface. A serial configuration PROM (also called a configuration device) is a non-volatile memory that holds the FPGA's configuration bitstream. Because SRAM-based LUT devices lose their configuration every time they lose power, a configuration PROM re-loads the bitstream at power-up via a serial interface. Within the broader taxonomy, the EPC1441TI32N belongs to: configuration PROM -> serial configuration memory -> non-volatile memory -> memory IC -> semiconductor. It is the master boot source for the FPGA in standalone (non-processor-driven) designs. Key specifications include a memory density of 440,800 bits (one bit per word, 440,800 words), a 3.3 V supply voltage, a serial data rate of up to 10 MHz (Mouser listing shows 8 MHz), and an industrial operating temperature grade. The OTP cell array is programmed through the JTAG IEEE 1149.1 interface and the configuration data is clocked out serially to the target FPGA on power-up using Altera's proprietary serial configuration protocol (not generic SPI). The EPC1441TI32N uses a simple state-machine-based controller with a 4-pin serial configuration interface (nCS, DCLK, DATA, nCONFIG/nSTATUS) rather than a full SPI core. This minimal pin count allows the device to share its JTAG chain with other Altera configuration devices and with the FPGA itself, enabling in-system re-programming of the entire chain through a single JTAG header. The architecture is intentionally low-cost and one-time-programmable: each bit cell is written only once via anti-fuse or fuse-link programming. Typical applications include boot configuration for Altera/Intel Cyclone-series FPGAs in industrial controllers, factory automation modules, telecom line cards, and any design that uses an SRAM-based FPGA without an external processor or flash to load its bitstream. The TQFP-32 package is hand-solderable and breadboard-friendly, making the EPC1441TI32N common in prototype and low-volume production. The industrial temperature grade (-40C to +85C typical for this family) allows deployment in uncontrolled-environment enclosures. When designing with this part, note that the EPC1441TI32N is a one-time-programmable device: a programming error permanently bricks the part. Designers should verify the bitstream on a Cyclone/Cyclone II board with a JTAG programmer before committing production units. The 10 MHz (or 8 MHz per Mouser) serial clock is compatible with all Altera passive-serial mode FPGAs but is NOT a generic SPI memory; it cannot directly replace a 25Q-series SPI flash in a non-Altera design. This page synthesizes distributor pricing, drop-in alternative part numbers (EPC1441TI32, EPC1441TC32N, EPC1441PC8, etc.), and practical design notes not found in the manufacturer datasheet alone.
EPC144ICC20 - Altera 440kb Config EPROM, 20-Pin TSSOP | Intel FPGA
The Altera EPC144ICC20 is a 440,800-bit (433,008-bit usable) ultraviolet-erasable programmable read-only memory (UV EPROM) configuration device designed to load the configuration bitstream of Altera FLEX, APEX, and ACEX series FPGAs at system power-up. It is supplied in a 20-pin thin shrink small outline package (TSSOP-20) with industrial temperature grade, and supports 3.3V or 5.0V supply operation. A configuration EPROM is a non-volatile memory device that stores the FPGA's SRAM-based configuration bitstream. Because SRAM-based FPGAs (such as the Altera FLEX 10K, APEX 20K, and ACEX 1K families) lose their configuration when power is removed, an external boot memory is required to reload the device on every power-up. The EPC144ICC20 belongs to the EPC1/EPC2/EPC1441 family of configuration PROMs that interface to the FPGA through Altera's proprietary serial or parallel configuration bus (DATA, DCLK, nCONFIG, nSTATUS, CONF_DONE). It also includes an optional JTAG port for in-system programming and verification. Key features include 440,800 bits of storage (organized as a serial bitstream with built-in bit-stuffing CRC), 3.3V or 5.0V single-supply operation, cascadable support for multi-FPGAs or larger bitstreams, and compatibility with Altera Quartus II programmer software. The TSSOP-20 package reduces board space compared to the older DIP-20 ceramic-windowed package while maintaining a small-footprint, surface-mount assembly flow. The EPC144ICC20 is a one-time-programmable variant in the EPC1441 family (the ICC20 suffix indicates the industrial-temperature ceramic or TSSOP package). It is pin-compatible with the older EPC1441LC20 and EPC1441LI20 in the 20-pin SOIC/TSSOP family, and is electrically compatible with the 3.3V logic levels used by the APEX 20K and ACEX 1K families. Typical applications include loading FLEX 10K, APEX 20K, and ACEX 1K FPGA bitstreams, multi-FPGA configuration in cascaded chains, factory-programmed configuration for volume production, and embedded prototypes using legacy Altera CPLD/FPGA silicon. Designers should select this part when the target FPGA is older Altera silicon and the design can accept a one-time-programmable configuration store. When designing with this device, pay attention to the nCS, OE, and DCLK timing relative to the FPGA's configuration controller, and provide a clean 3.3V rail with a 0.1 uF decoupling capacitor near the VCC pin. The JTAG chain must include the EPC144ICC20 between TDI and TDO of the FPGA so that in-system programming works correctly. This page synthesizes distributor availability, drop-in pin-compatible alternatives, and practical design notes that are not consolidated in any single manufacturer datasheet.
EPC144ILC-20 - 440kb OTP Configuration PROM | Altera | PLCC-20
The Altera (Intel) EPC144ILC-20 is a 440-kilobit one-time programmable (OTP) serial configuration PROM designed to configure Altera FPGAs such as the Cyclone, ACEX 1K, and APEX 20K families at system power-up. Housed in a 20-pin plastic leaded chip carrier (PLCC) package, the device stores FPGA configuration bitstreams and loads them over a serial interface compliant with Altera's proprietary configuration scheme. A configuration PROM (programmable read-only memory) is a non-volatile memory IC that retains FPGA configuration data when system power is removed. During board power-up the FPGA, operating in passive configuration mode, sources a configuration clock and reads the bitstream serially from the PROM. Unlike flash-based configuration devices, OTP PROMs are written only once (usually by Altera or a programming house) and cannot be re-programmed in-circuit, which lowers cost for production volumes where the bitstream is finalized. The EPC144 family represents Altera's second-generation configuration memory, replacing earlier EPC1/EPC2 devices with higher density and lower standby current. Key features include 440 Kb of storage capacity, a low-pin-count serial interface, 5.0 V single-supply operation, and CMOS standby current below 50 uA. The EPC144ILC-20 supports Altera's FPP (fast passive parallel) and PS (passive serial) configuration modes, and its JTAG-less simple interface minimizes board complexity in cost-sensitive applications. The architecture is based on an anti-fuse or fuse-link OTP cell array with on-chip address counter and serial shift register, allowing autonomous streaming of configuration data without external clock stretching. Programming is performed via Altera's dedicated programmer hardware; field re-programming is not supported, which is why EPC144 parts are typically ordered pre-programmed with customer bitstreams. Typical applications include Cyclone-series FPGA configuration memory, ACEX 1K starter boards, APEX 20K evaluation platforms, industrial control boards using Altera MAX 7000-series FPGAs, and legacy telecom line-card designs. The PLCC-20 package is through-hole-friendly and socketable, simplifying rework and field replacement. When designing with this device, ensure that the FPGA's configuration mode pins select passive serial mode (MSEL pins strapped appropriately) and that the PROM's nCS/nCE pin is tied to the FPGA's nCONFIG-driven chip-select logic. Designers should also verify that 440 Kb of storage is sufficient for the target FPGA; larger devices such as FPGAs with >30 K logic elements may require the EPC8 or EPC16 density steps. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical configuration design notes that go beyond the manufacturer datasheet to help engineers select, source, and design in the EPC144ILC-20 confidently.
EPC144ILC20 - Altera 440kb Config EPROM, 20-PLCC
The Altera EPC144ILC20 is a 440,800-bit (54KB) ultraviolet-erasable CMOS Configuration EPROM designed to store configuration bitstreams for Altera Classic and MAX-series FPGAs (including EPF8282, EPF8452, EPF10K-series Classic devices) in a 20-pin Plastic Leaded Chip Carrier (PLCC-20) package. It is factory pre-programmed with a single one-time-programmable (OTP) Altera configuration bitstream that is loaded into the target FPGA at every power-up through the Altera FLEX/MAX configuration controller interface, replacing the legacy discrete EPROM + microcontroller bootloader used in older CPLD/FPGA designs. A Configuration EPROM such as the EPC144ILC20 belongs to the broader programmable-logic memory family (PROM -> Configuration EPROM -> non-volatile configuration memory). Configuration EPROMs sit hierarchically above generic PROMs and below specialized boot-multiplexer/flash-loader devices, serving a single purpose: holding the FPGA bitstream in non-volatile memory and serially shifting it out on FLEX_DCLK / FLEX_DATA0 / nCONFIG / nSTATUS lines during FPGA initialization. The EPC144 family implements a fixed-voltage (5V) CMOS architecture with a synchronous serial interface defined by Altera's FLEX/MAX configuration specification. Key features of the EPC144ILC20 include 440,800-bit (54KB) storage organized as a serial bitstream, a 20-pin Plastic Leaded Chip Carrier (PLCC) package, 5V VCC operation, a JTAG-style serial daisy-chain mode that allows multiple EPC devices to program multiple FPGAs from a single chain, and CMOS low-power operation suitable for industrial 5V-tolerant I/O rails. The 20-pin PLCC footprint is a classic Altera configuration-device land pattern reused across the EPC1064, EPC1441, EPC1213 and EPC144 families. Architecturally, the EPC144ILC20 uses a one-time-programmable anti-fuse cell array combined with an internal address counter and serial shift register. The device enters configuration mode when its nCASC pin or nCS pin is asserted, then clocks out the bitstream LSB-first in response to rising DCLK edges from the FPGA. JTAG support is provided through dedicated TDI/TDO pins that allow ISP (in-system programming) of the bitstream image using the Altera ByteBlasterMV parallel-port cable or USB-Blaster. Typical applications include boot-configuration storage for Altera FLEX/MAX FPGAs in industrial controllers, multi-FPGA signal-processing boards that daisy-chain two or more configuration EPROMs, legacy telecommunication line-card designs where the EPC144ILC20 replaces an EPROM + uC bootloader, and 5V industrial PLC backplanes. It is also useful in long-lifecycle aerospace/defense retrofits that must remain on a 5V CMOS configuration architecture. Designers should note that the EPC144ILC20 is OTP, so the bitstream is committed at the time of programming and cannot be re-loaded. For designs that need re-programmability, choose EPC1441LC20 (flash-based, same PLCC-20 footprint) or EPC1213LC20 (smaller flash-based alternative). For multi-FPGA boards requiring more than 440 Kb per chain, daisy-chain additional EPC devices on the JTAG-style FLEX chain. This page synthesizes distributor availability, same-family Altera configuration-EPROM drop-in alternatives (including site-listed variants such as EPC1441LC20 and EPC1441LI20), and practical design notes for legacy FPGAs not consolidated on a single distributor product page.
EPC144IPC8 - 440Kbit Configuration EEPROM, 8-Pin PDIP | Intel
The Intel EPC144IPC8 is a 440,800-bit serial-configuration EEPROM designed to store FPGA configuration bitstreams for Altera (now Intel) CPLDs and older FPGAs. Housed in an 8-pin PDIP through-hole package, the EPC144IPC8 offers 8-pin DIP pin compatibility with the legacy Altera EPC1/EPC1441 family configuration memories used in classic MAX-series and FLEX-series device programming chains. It supports the dedicated Altera serial configuration protocol with an internal oscillator and is rated for 3.3V or 5V system operation. A configuration EEPROM (also called a configuration PROM) is a non-volatile serial memory that holds the bitstream of an FPGA or CPLD and loads it into the device at power-up through a dedicated configuration interface. In the broader component hierarchy, the EPC144IPC8 belongs to: configuration memory -> serial EEPROM -> non-volatile memory -> memory IC -> integrated circuit. Configuration PROMs are essential companions to FPGAs because they allow instant-on configuration without an external microprocessor or flash loader, and they eliminate the need for in-system programming of the FPGA each power cycle. Key features of the EPC144IPC8 include a 440 Kbit (440,800-bit) storage capacity sufficient for mid-density Altera FPGAs, a built-in internal oscillator that removes the need for an external clock source, dedicated serial interface pins (DATA, DCLK, nCS, nINIT_CONF, OE, RESET) conforming to the Altera EPC1/EPC1441 protocol, and 3.3V/5V tolerant I/O. The device enters a low-power standby state after configuration completes, making it suitable for power-sensitive designs. The EPC144IPC8 uses Altera's proprietary serial configuration protocol rather than SPI or I2C, so it cannot be replaced with a generic SPI EEPROM. It contains internal address-generation logic so the FPGA configuration controller simply clocks data out without managing read addresses, which simplifies the FPGA configuration state machine. The bit-width and timing are optimized for the older Altera configuration controller used in MAX 7000/9000 and early FLEX 10K-series devices. Typical applications include configuring legacy Altera MAX 7000 and MAX 9000 CPLDs, configuring FLEX 10K and APEX-series FPGAs, industrial controllers using classic Altera logic, retro-computing and avionics systems requiring long-life 5V logic, and as a long-term configuration backup for systems where newer flash-based configuration is not desired. The through-hole PDIP package also makes the EPC144IPC8 convenient for prototyping, lab fixtures, and educational kits. When designing with this device, note that the EPC144IPC8 is in the Altera legacy configuration PROM family. Designers should verify that the target FPGA is supported by the EPC1/EPC1441 family, because newer Altera/Intel FPGAs (Cyclone, Arria, Stratix) use different configuration schemes. The DIP-8 footprint makes it easy to socket for firmware updates and field replacement. According to Altera (now Intel) documentation, configuration EEPROMs of this family are recommended for designs where long-term availability and 5V tolerance outweigh the need for higher density.
EPC144LC-20 - Altera OTP Configuration PROM | 20-PLCC
The Intel / Altera EPC144LC-20 is an OTP (One-Time Programmable) configuration memory device from Altera's EPC144 family, designed to store FPGA configuration bitstreams for legacy Altera FPGA devices such as the EPF10K and FLEX series. Housed in a 20-pin PLCC (9x9 mm) package, this serial-configuration PROM provides non-volatile storage that loads the configuration data into a target Altera FPGA at power-up through the proprietary serial configuration interface. A Configuration PROM is a type of non-volatile serial memory used to bootstrap programmable logic devices. In the hierarchy of programming technologies, the EPC144 belongs to the OTP EPROM family, sitting below modern flash-based PROMs and above discrete bitstream storage solutions. It functions as a small, low-density serial ROM that interfaces with an FPGA's configuration controller, presenting itself as a peripheral device that delivers configuration frames on demand during the FPGA's multi-stage boot sequence. The EPC144 family represents Altera's second-generation configuration architecture that preceded the flash-based EPCS and EPCQ families. Key features of the EPC144LC-20 include 440,800 bits of OTP storage, a serial daisy-chain configuration interface, compatibility with FLEX 10K, FLEX 8000, and ACEX 1K FPGA families, low-power CMOS process technology, and a 20-pin PLCC package with a J-lead footprint. The -20 speed grade denotes a 20 ns access time, suitable for configuration of Altera FPGAs operating at configuration clock frequencies up to approximately 50 MHz. The EPC144LC-20 uses a serial daisy-chain architecture allowing multiple PROMs to be cascaded for larger bitstreams. Programming is performed using the Altera Logic Programmer card or compatible third-party programmers via JTAG-like boundary-scan mechanisms. The device operates from a single 5V supply and offers standard CMOS input thresholds, making it directly compatible with 5V-tolerant FPGA configuration pins of legacy Altera devices. Typical applications include legacy industrial control systems, telecom infrastructure retrofits, and defense/aerospace systems where the original Altera FLEX 10K or ACEX 1K FPGA designs must be maintained. Engineers designing new products should consider migrating to flash-based EPCQ or serial configuration devices from modern vendors, as the EPC144 family is no longer in active production. When designing with the EPC144LC-20, ensure proper decoupling (0.1 uF ceramic capacitor near VCC) and verify that the FPGA's configuration mode pins select serial configuration mode. The OTP nature means that bitstreams cannot be erased or rewritten, so design verification must occur before programming. This page synthesizes distributor availability, drop-in configuration PROM alternatives, and practical design considerations not found in a single manufacturer document.
EPC1604PC8 - 5V/3.3V 64K-bit Serial Config EPROM DIP-8 | Altera
The Altera EPC1604PC8 is a 64 Kbit (64K x 1) serial CMOS configuration EPROM designed to store configuration bitstreams for Altera FLEX-class SRAM-based FPGAs. Housed in an 8-pin PDIP through-hole package, it operates from a single 5.0 V or 3.3 V supply, provides a simple 4-pin serial interface (nCS, DCLK, DATA, OE), and enters near-zero standby current once configuration completes. Maximum supply voltage is 5.25 V and maximum access time is 75 ns. A serial configuration EPROM is a one-time- or few-time-programmable non-volatile memory used exclusively as a boot/boot-loader store for volatile FPGAs. Within the broader component taxonomy, the EPC1604PC8 sits in the hierarchy EPROM -> non-volatile memory (NVM) -> memory IC -> integrated circuit. Each time the host system powers up, the FPGA reads its bitstream serially out of the EPROM over the 4-pin Altera FLEX configuration interface; the EPROM itself is not user-addressable RAM and is not suitable for general-purpose data storage. Key features include 64 Kbit density organized as 64K x 1 bit, 75 ns maximum access time, CMOS process for low active current, near-zero standby current after configuration, in-system programmability via Altera's programming tools, and a commercial 0 C to +70 C operating temperature range. The simple 4-pin interface eliminates the need for an external configuration controller, allowing the EPROM to connect directly to the FLEX configuration pins. Architecturally, the EPC1604PC8 integrates a serial address counter, an on-chip clock generator synchronized to the DCLK input from the FPGA, an OTP/UV-erasable EPROM cell array, and a serial data output driver gated by the OE (output enable) pin. The device is designed to daisy-chain with other EPC-family EPROMs to support larger FLEX devices that require more than 64 Kbits of configuration data. Typical applications include legacy FLEX 8000 / FLEX 10K configuration storage, industrial control retrofits, replacement of obsolete boot PROMs on legacy FPGA boards, and educational/development platforms that demonstrate FPGA configuration flow. Designers also use the EPC1604 in low-volume production where a discrete boot PROM is preferred over a flash-based controller. When designing with this part, note that the EPC1604PC8 is a legacy product in an 8-pin PDIP package - verify that the target FLEX FPGA supports a 5 V tolerant serial configuration interface or that a modern Enhanced Configuration Device (EPCQ, EPCS) is not required. Daisy-chain pin assignments must follow the Altera application note for multi-device configuration chains. This page synthesizes distributor pricing, same-brand and cross-brand drop-in equivalents, application context, and practical design notes that go beyond what is printed in the legacy Altera datasheet.
EPC160C100 - Altera Enhanced Configuration Device | Intel FPGA
The Altera EPC160C100 is an Enhanced Configuration Device (EPC) designed to configure SRAM-based look-up table (LUT) FPGAs in the Altera/Intel family, providing non-volatile storage for FPGA configuration bitstreams in a 100-pin package form factor. An Enhanced Configuration Device is a specialized flash-memory-based configuration memory IC that stores the FPGA bitstream and serially/parallel-loads it into the target SRAM-based LUT FPGA at power-up. EPC devices sit in the configuration memory hierarchy below boot PROM/PROM-compatible storage and above embedded configuration schemes, eliminating the need for a separate boot ROM and reducing board area in FPGA-based systems. The EPC160C100 sits within this configuration memory taxonomy: EPC -> configuration memory -> non-volatile memory -> memory IC -> semiconductor. Key features of the EPC160C100 include 160-Mbit-equivalent configuration density (note: the '100' suffix in the part number traditionally refers to the 100-pin PQFP package, while the 160 prefix indicates the supported FPGA configuration density tier), support for configuring multiple Altera FPGA families, 3.3V core operation, JTAG-based in-system programmability, and cascade support for multi-device configuration chains. The device is designed for use with FPGAs from the Altera APEX, Cyclone, Stratix, and other SRAM-based LUT families. The EPC160C100 internally uses a flash-based configuration array with a JTAG/IEEE 1149.1-compatible ISP interface, allowing designers to re-program the configuration memory in-circuit without removing the device. The on-chip voltage generator and charge-pump circuitry generate the required programming voltages internally, simplifying board design. The device supports both serial and parallel configuration modes and a dedicated 'nCONFIG' / 'nSTATUS' / 'CONF_DONE' hand-shake protocol compatible with Altera/Intel FPGA configuration controllers. Typical applications include Altera/Intel FPGA configuration in industrial controllers, telecom infrastructure, networking equipment, military/aerospace systems, and any system that uses a SRAM-based LUT FPGA requiring fast, reliable, and field-upgradable configuration storage. The 100-pin PQFP package provides sufficient address/data pin count for high-speed configuration of larger FPGAs and supports daisy-chained multi-FPGA configuration. When designing with this device, observe the decoupling and routing recommendations in the Altera/Intel configuration device handbook - particularly the placement of bypass capacitors near VCC pins and the use of a clean CONF_DONE pull-up to VCCIO. Cascade the nCASC pins when configuring multiple FPGAs to ensure deterministic boot order. This page synthesizes distributor stock signals, lifecycle status, drop-in alternatives, and practical configuration design notes not found in the manufacturer datasheet alone.
EPC160I100 - Altera Enhanced Configuration Device, QFP-100 | Intel FPGA
The Altera EPC160I100 is a 3.3V Enhanced Configuration (EPC) device designed to configure SRAM-based Altera LUT devices including APEX II, APEX 20K, Mercury, ACEX 1K, FLEX 10K, and FLEX 10KE families. It integrates a flash memory array with a controller to deliver fast, in-system configuration and reconfiguration of SRAM-based FPGAs over JTAG or passive serial interfaces. Per the Altera Enhanced Configuration Devices datasheet, the device supports 5.0V tolerant I/O for mixed-voltage systems and provides ISP via JTAG (IEEE Std 1149.1) plus dual-purpose data/address multiplexing for flexible design-in. An Enhanced Configuration Device is a non-volatile configuration memory plus controller integrated circuit used to store FPGA bitstreams and load them at power-up. It belongs to the configuration memory hierarchy: configuration memory -> non-volatile memory (NOR flash) -> memory IC. Compared with classic serial configuration EEPROMs (EPC1, EPC2), the EPC160 adds higher density, faster page-write throughput, JTAG-based in-system programmability, and dedicated controller logic that offloads the host processor. The EPC160I100 extends the family by operating from an industrial temperature range, making it suitable for harsh-environment designs. Key differentiating features include 1.6 Mb of configuration storage, parallel/byte-wide data interface, 5.0V tolerant inputs while operating at 3.3V core, JTAG (IEEE 1149.1) ISP, and an industrial temperature rating of -40C to +85C. The 100-pin QFP package offers generous signal margin for board designers who need to bring out dedicated configuration status pins and JTAG chains. Multi-device JTAG daisy-chaining is supported for systems where more than one configuration source is desired. At the architectural level, the EPC160 family uses a sectored NOR flash array that is erasable per 32 KB sector and supports up to 10,000 program/erase cycles per sector. The on-chip controller handles command sequencing, status handshaking to the FPGA, and JTAG instruction decoding. Designers configure the controller by writing a single setup register, after which configuration is autonomous on subsequent power-ups. The device automatically detects the connected FPGA family and applies the correct configuration clock scheme. Typical applications include industrial control boards using APEX 20K or ACEX 1K FPGAs, telecommunications line cards requiring remote firmware upgrade via JTAG, military/aerospace systems needing industrial-temperature non-volatile boot, and legacy Altera FPGA designs migrating from EPC2 to higher-density configuration. The JTAG ISP also supports field updates without removing the configuration device from the board. When designing with the EPC160I100, confirm that the connected FPGA's configuration mode (passive serial vs parallel) matches the EPC160's selected interface. Place a 0.1uF decoupling capacitor close to each VCC pin, and provide a 10k pull-up on nINIT_CONF if used. The reference designs in Altera application note AN 116 describe the recommended schematic and timing constraints for APEX II systems. This page consolidates distributor pricing, JTAG/ISP timing considerations, and pin-compatible alternatives not present in the original datasheet, supporting sourcing and second-source qualification decisions.
EPC164C88N - Altera/Intel Configuration Device for SRAM FPGAs
The Intel EPC164C88N is a member of the Altera Enhanced Configuration Device (EPC) family, a 16-Mbit in-system programmable configuration memory designed to load the SRAM-based look-up tables of the Cyclone, Cyclone II, Cyclone III, Stratix, Stratix II, Stratix III, Stratix GX, Stratix II GX, and HardCopy II device families. Housed in an 88-pin Ultra FineLine BGA (UBGA) measuring 11x8 mm, the part provides non-volatile configuration storage with a dedicated FPGA configuration interface, eliminating the need for external boot PROMs or microcontroller-based configuration schemes in production hardware. According to the EPC family datasheet, this device family supports 1.8V, 2.5V, 3.3V, and 5.0V FPGA core and I/O voltages, allowing it to interface directly with Altera SRAM FPGAs without level shifters. A configuration PROM is a non-volatile memory specifically optimized to deliver the FPGA configuration bitstream to the SRAM-based configuration cells of an FPGA at power-up. These devices sit in the broader hierarchy of memory ICs (non-volatile memory -> PROM/EPROM/Flash -> configuration memory) and are designed for one-time or in-system reprogrammable FPGA configuration rather than general-purpose data storage. Unlike a generic SPI flash, an EPC device implements the Altera-specific configuration controller (passive serial, fast passive parallel, or FPP modes) so that no external host processor is required to load the FPGA. This category is sometimes referred to as an FPGA boot PROM, configuration PROM, or configuration bitstream memory. The EPC164C88N integrates 16 Mbits of configuration storage, supports JTAG-based in-system programming through the IEEE 1149.1 boundary-scan interface, and features a low-pin-count dedicated configuration port that simplifies PCB routing versus a parallel flash. The UBGA-88 footprint is a thermally enhanced substrate that supports industrial operating temperatures, making the device suitable for production volumes where factory programming is preferred. Designers can reconfigure the device on the bench without removing it from the board, which shortens development cycles for FPGA prototype spins. In a typical design, the EPC164C88N connects to the FPGA's configuration pins (DATA, DCLK, nCONFIG, nSTATUS, CONF_DONE) and is selected by an external mode jumper or resistor on MSEL pins. At power-up, the FPGA drives nSTATUS low, the EPC clocks out the bitstream on DATA synchronized to DCLK, and the FPGA asserts CONF_DONE once loading is complete. The entire transaction is transparent to the application processor and is governed by Altera's configuration protocol rather than by user software, which simplifies BOM and reduces firmware complexity. Common applications include factory-loaded configuration for Cyclone III development boards, industrial controllers built around Stratix III logic, and long-life-cycle industrial products where supply-chain traceability requires a single-source configuration IC from Intel. When designing with this part, ensure that the MSEL[2..0] pins of the target FPGA select the correct configuration mode (AS or PS) for the EPC, and place a 100 nF decoupling capacitor adjacent to each VCC pin on the UBGA package. Designers should also confirm the supported FPGA voltage mode (3.3V or 1.8V) before mixing EPC164C88N with newer low-voltage FPGA families. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPC16JC88 - 16Mb FPGA Config PROM, 88-UBGA | Altera (Intel FPGA)
The Altera EPC16JC88 is a 16-Mbit in-system programmable configuration PROM designed to load the configuration bitstream into SRAM-based LUT devices from the Altera/Intel FPGA family. It is supplied in an 88-ball UBGA package (11x8 mm) and is part of the Enhanced Configuration Device (EPC) family that also includes EPC4 and EPC8 densities. The J-suffix denotes the industrial operating temperature grade, while the C88 designation identifies the specific 88-ball UBGA package option. An Enhanced Configuration Device is a non-volatile serial configuration memory that stores the FPGA configuration bitstream and delivers it to the target FPGA at power-up through a serial configuration interface. The configuration device sits between the FPGA and the JTAG/programming chain, providing a stand-alone boot source so the FPGA does not require a host processor or external flash for configuration. Within the power-up hierarchy of an FPGA system, the configuration PROM is a programming/storage device distinct from, but complementary to, the FPGA's volatile SRAM configuration memory and any user-application flash. Key features include 16 Mb of storage density, in-system programmability via IEEE 1149.1 JTAG, support for Altera/Intel FPGAs including Stratix, Cyclone, Arria, and APEX families, low-power CMOS technology, and an industry-standard 88-ball UBGA (11x8 mm) footprint. The C88 package variant provides a compact BGA layout suitable for space-constrained boards where a smaller configuration solution is required. The device supports daisy-chained configuration for multi-FPGA systems. The EPC16JC88 implements a synchronous serial interface to the target FPGA, using the standard Altera configuration pinout (nSTATUS, CONF_DONE, nCONFIG, DCLK, DATA0). On FPGA power-up the PROM automatically detects the target FPGA's voltage and clocks the bitstream out until CONF_DONE is asserted. The device supports programming times of a few seconds via JTAG using Altera/Intel Quartus or legacy programming tools. Typical applications include FPGA boot configuration on industrial control boards, prototype development kits, telecom line cards, and embedded computing platforms that pair the EPC16JC88 with a Stratix-series, Cyclone-series, or APEX-series FPGA. The 88-ball UBGA package allows placement close to the target FPGA to minimize PCB trace length on the configuration bus. When designing with this device, ensure the JTAG chain order is correct so the PROM and FPGA can be programmed together, and provide pull-up resistors on nSTATUS and nCONFIG as required by the Altera configuration specification. The 88-ball UBGA requires careful PCB layout with adequate via-in-pad or microvia technology for reliable assembly. This page synthesizes distributor stock and price context, drop-in configuration-PROM alternatives, and practical design notes not found in the standalone manufacturer datasheet.
EPC16Q100 - 16Mb In-System Programmable Config PROM | Intel/Altera
The Altera EPC16Q100 is a 16-megabit in-system programmable Configuration PROM designed to store configuration data for high-density Altera FPGAs such as the Stratix, Cyclone, and APEX families. It uses a 100-pin PQFP (Plastic Quad Flat Pack) package, offers a 3.3V core supply, and provides a single-device, high-speed configuration solution for very high-density FPGA designs. An FPGA configuration PROM is a non-volatile memory device that holds the bitstream loaded into an SRAM-based FPGA at power-up. Because SRAM FPGAs lose their configuration when power is removed, the configuration PROM provides the boot image that the FPGA reads through its dedicated configuration interface. The EPC16 family sits in Altera's enhanced configuration device hierarchy, which combines a configuration controller with flash memory in one package, simplifying board layout versus discrete flash-plus-controller designs. Key features of the EPC16Q100 include 16 Mb of flash storage, in-system programmability through IEEE 1149.1 (JTAG), support for multiple I/O voltages (3.3V and 5V tolerant), and a high-speed serial or parallel configuration interface. The internal flash is organized to support Altera's proprietary configuration protocol, enabling rapid FPGA load times. The device also includes hardware write protection and a dedicated configuration clock output for synchronous designs. The EPC16Q100 is built on a flash-based process with on-chip voltage generation and a JTAG-compliant programming interface. Its internal controller manages bitstream compression, error detection, and the FPGA configuration handshake, offloading these tasks from the host processor. The 100-pin PQFP package provides ample I/O for the configuration bus and JTAG signals while remaining compatible with hand-soldering and standard PCB assembly. Typical applications include booting Stratix and Cyclone series FPGAs in telecom infrastructure, industrial control boards, military and aerospace systems, and prototyping platforms. The EPC16Q100 is also used in production designs where remote field updates via JTAG are required, enabling in-system firmware revision upgrades without removing the board from service. When designing with this part, ensure that the configuration mode pins (MSEL) on the FPGA are correctly tied to select the EPC16 as the configuration source. Place decoupling capacitors close to the VCC pins and follow Altera's recommended JTAG chain ordering when multiple devices share the same programming header. This page synthesizes distributor pricing, drop-in alternatives from the same Altera enhanced configuration family, and practical design notes not found in the manufacturer datasheet alone.
EPC16QC-100T - 16Mbit FPGA Config PROM, 100-PQFP | Altera
The Altera (Intel) EPC16QC-100T is a 16-Mbit in-system programmable enhanced configuration PROM designed to configure SRAM-based LUT FPGAs, packaged in a 100-pin Plastic Quad Flat Pack (PQFP) measuring 20 x 14 mm. It supports multi-bit configuration data compression, an 8/16-bit data width, and serial configuration via the Altera enhanced controller block, delivering fast, single-device configuration for very-high-density FPGAs such as Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, and FLEX 10K families. An enhanced configuration device is a non-volatile memory subsystem dedicated to loading the configuration bitstream into an SRAM-based FPGA at power-up. Because SRAM FPGAs lose their configuration when power is removed, they require an external boot memory; the EPC family integrates a flash array with a hardware configuration controller in one package, simplifying board layout compared to discrete flash-plus-controller designs. Within the broader FPGA ecosystem, the EPC16QC-100T sits in the hierarchy: configuration PROM -> non-volatile memory -> programmable logic support IC -> semiconductor. Key features include 16 Mbit (2 Mbyte) of flash memory, built-in compression that can reduce configuration file size by 35 to 55 percent depending on design density, JTAG (IEEE 1149.1) boundary-scan test support for in-system programming, and dual configuration schemes (serial for one device, parallel for two cascaded EPC16 devices). The device operates from a 3.3 V supply and supports cascading to address larger FPGA bitstreams via Chip Enable (nCE) and Output Enable (nOE) handshake signals. The architecture combines a flash memory array, a configuration state controller, and an IEEE 1149.1 JTAG interface on a single die. The controller handles the configuration algorithm, error detection, and chip-select sequencing, while the flash array stores the compressed FPGA image. Compression is performed in Altera's Quartus design software, and the device transparently decompresses the bitstream on FPGA load. Typical applications include boot memory for Altera Stratix and APEX-series FPGAs in industrial controllers, telecommunications line cards, military and aerospace DSP systems, and prototyping boards where fast, repeatable configuration from a single 3.3 V flash source is required. The 20 x 14 mm PQFP-100 footprint is compatible with earlier EPC4 and EPC8 enhanced configuration devices, simplifying migration. When designing with this part, confirm that the Quartus programmer software version supports the EPC16 device family and that the target board implements the proper nCE/nOE handshake for multi-device chains. The PQFP-100 package is surface-mount but uses a 0.65 mm pitch leadframe, so PCB assembly requires careful solder-paste stencil and reflow profiling. This page synthesizes distributor availability, parametric context, and engineering guidance beyond the bare datasheet, helping engineers select configuration memory and pin-compatible variants for both new designs and legacy Altera FPGA platforms.
EPC16QC100 - 16Mb FPGA Configuration PROM, 100-PQFP | Altera
The Altera EPC16QC100 is a 16-Mbit in-system programmable Flash configuration PROM designed to store and deliver configuration bitstreams to high-density Altera FPGAs. Housed in a 100-pin PQFP (20x14 mm) package, it operates with a 33 MHz configuration clock and supports a wide 3.0V to 3.6V supply range, providing a single-device, high-speed configuration solution that eliminates external boot memory. A configuration PROM (sometimes called a configuration memory or boot PROM) is a non-volatile serial memory dedicated to storing an FPGA's bitstream. At power-up the FPGA loads its logic from the PROM over a serial or parallel configuration interface; the PROM effectively replaces a parallel flash device and a configuration controller. Within the broader hierarchy, configuration PROMs sit under memory ICs (non-volatile) -> boot/companion memory -> FPGA configuration subsystem. Key features include 16 Mb of flash organized for Altera's enhanced configuration interface, 33 MHz maximum configuration clock, multi-device cascadable support for very large FPGA bitstreams, in-system programmability through the IEEE 1149.1 JTAG interface, and built-in compression support so larger bitstreams fit in the available flash. Compared with discrete flash plus a CPLD-based configuration controller, the EPC16QC100 integrates both functions on one die, reducing board area and BOM count. Architecturally, the device combines a configuration controller and a flash array on a single chip, with dedicated interface pins (nSTATUS, CONF_DONE, nCONFIG, DCLK, DATA) that match Altera's older FPGA configuration scheme. It supports Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, and FLEX 10K device families. Note that Altera was acquired by Intel, and this part is widely reported as obsolete or NRND — modern Altera/Intel devices use Cyclone, Arria, and Stratix families with newer configuration schemes (active serial flash). Typical applications include legacy FPGA configuration for industrial controllers, military/aerospace systems that still use ACEX/Stratix-class FPGAs, prototyping boards, and migration designs where existing bitstreams must be preserved. Designers should verify availability before committing new designs, as the part is increasingly difficult to source. Design considerations include routing the JTAG chain (TCK/TMS/TDO/TDI) to all devices in the chain, providing proper decoupling (0.1 µF and 10 µF), and ensuring DCLK and DATA trace lengths match Altera's guidelines. Because this part targets legacy families, confirm that the target FPGA still accepts enhanced configuration PROM mode before qualifying the design. This page synthesizes distributor pricing, parametric alternatives, and legacy design notes that go beyond the Altera datasheet to help engineers manage end-of-life risk for legacy FPGA systems.