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EPC1441TC32 - 440Kb OTP FPGA Config PROM | Altera | 32-TQFP
EPC1441TC32

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.

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EPC1441TC32N - 440kb OTP Configuration PROM | Altera TQFP-32
EPC1441TC32N

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.

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EPC1441TI32 - 440kb OTP Config PROM for FPGAs | Altera
EPC1441TI32

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.

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EPC1441TI32N - 440Kb FPGA Config PROM, 32-TQFP | Intel / Altera
EPC1441TI32N

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.

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EPC144ICC20 - Altera 440kb Config EPROM, 20-Pin TSSOP | Intel FPGA
EPC144ICC20

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.

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EPC144ILC-20 - 440kb OTP Configuration PROM | Altera | PLCC-20
EPC144ILC-20

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.

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EPC144ILC20 - Altera 440kb Config EPROM, 20-PLCC
EPC144ILC20

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.

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EPC144IPC8 - 440Kbit Configuration EEPROM, 8-Pin PDIP | Intel
EPC144IPC8

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.

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EPC144IPC8N - Altera/Intel Enhanced Configuration Device
EPC144IPC8N

EPC144IPC8N - Altera/Intel Enhanced Configuration Device

The EPC144IPC8N is an Enhanced Configuration Device (EPC) from Altera (now part of Intel) designed to store and deliver configuration bitstreams to Altera FPGAs such as the Cyclone, Stratix, and APEX families. It is a single-chip Flash-based configuration memory solution with an integrated IEEE 1149.1 (JTAG) interface, eliminating the need for an external configuration controller. The 'IPC8N' suffix denotes the industrial temperature range, an 8-pin PDIP package, and lead-free / Pb-free terminal finish. An FPGA configuration memory is a non-volatile storage device that holds the SRAM configuration bitstream of an SRAM-based FPGA. Because SRAM cells lose their data on power-down, every SRAM FPGA requires an external boot memory that reloads the bitstream at power-up. Enhanced Configuration Devices are a category of such boot memories that integrate the configuration controller, voltage management, and JTAG ISP into one IC, simplifying board design. Key features of the EPC144IPC8N include in-system programmability via JTAG, a built-in oscillator that generates the configuration clock (DCLK) for the target FPGA, and a 3.3V core / multi-Voltage I/O interface that supports target FPGAs operating at 1.8V, 2.5V, 3.3V, or 5V. The device is configured by the FPGA itself using a slave-serial or slave-parallel-selectmap-style protocol, and a chain of EPCs can be cascaded to support larger FPGA bitstreams. Architecturally, the EPC144IPC8N combines a Flash array with an embedded state machine. At FPGA power-on, the FPGA drives nCONFIG and the EPC device responds by clocking its stored bitstream out through DATA(n) and DCLK pins, re-configuring the target FPGA's SRAM cells. The on-chip controller handles compression, error detection, and JTAG instructions (SAMPLE/PRELOAD, EXTEST, BYPASS, PROGRAM, ERASE, VERIFY, IDCODE). Typical applications include Altera Cyclone II / III FPGA boot, Stratix / Stratix II reference designs, industrial controllers using APEX 20K and ACEX 1K families, and legacy telecom / factory-automation designs migrated to Altera FPGAs. The EPC144IPC8N is most commonly paired with small- to medium-density Altera FPGAs whose bitstream fits within its density window. When designing with the EPC144IPC8N, ensure decoupling per Altera reference design (typically 0.1 uF near VCC), keep JTAG trace lengths below 6 inches for reliable ISP, and verify chain timing against the target FPGA's configuration clock maximum. Use Altera Quartus II programmer software (version 13.0 or earlier is recommended) for in-system programming.

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EPC144IPI8 - 4Mb EPC Flash Config Memory | Intel / Altera
EPC144IPI8

EPC144IPI8 - 4Mb EPC Flash Config Memory | Intel / Altera

The Altera (Intel) EPC144IPI8 is a serial-configuration (Flash-based) memory device designed to store configuration bitstreams for Altera FLEX and other SRAM-based programmable logic devices. It provides 4,338,006 bits of non-volatile storage and uses a simple serial interface, eliminating the need for external boot PROMs in many designs. The device is offered in an 8-pin PDIP package with industrial temperature grade (I8 suffix) and supports in-system programming via JTAG. An FPGA configuration memory is a specialized non-volatile memory that holds the bitstream image loaded into an SRAM-based FPGA at power-up. Since SRAM FPGAs lose their configuration when power is removed, an external boot memory such as the EPC144IPI8 reloads the design every time the system powers up. These devices sit in the configuration chain hierarchy: configuration memory -> FPGA configuration interface -> SRAM LUT-based FPGA -> programmable logic device. They are essential for any production design using SRAM-based FPGAs that needs instant-on or stand-alone operation without a microprocessor host. Key features include 4,338,012 bits (approximately 4 Mb) of storage, a low-pin-count serial interface that uses only four signals (DATA, DCLK, nCS, OE), in-system programmability through the JTAG boundary-scan chain, and an industrial operating temperature range of -40C to +85C. The 8-pin PDIP package allows easy through-hole assembly and rework, which is convenient for legacy designs and prototype boards. Technically, the EPC144IPI8 is built on a standard floating-gate NOR Flash process and emulates a serial daisy-chain configuration PROM. Internally it implements an oscillator-driven state machine that clocks configuration data out on the rising edge of DCLK after nCS goes low. The device is specified for 3.3V or 5V operation depending on revision, and supports cascading of multiple devices for designs that require larger bitstreams than 4 Mb. Typical applications include Altera FLEX 10K, FLEX 8000, APEX 20K and ACEX 1K configuration, industrial control boards using SRAM FPGAs, prototyping platforms for legacy Altera devices, and field-upgradable logic modules where JTAG reprogramming of the boot memory simplifies firmware updates. Designers working with modern Altera/Intel Cyclone or Stratix families should confirm datasheet compatibility before substituting, as some newer devices use different configuration schemes. When designing with the EPC144IPI8, ensure the JTAG chain order matches the datasheet reference schematic and that nCONFIG / nSTATUS pull-ups are sized correctly for the chosen FPGA. The serial configuration interface requires careful trace-length matching if the boot memory sits more than a few centimeters from the FPGA. This page synthesizes distributor stock data, drop-in alternatives drawn from the Site MPN list, and practical configuration-chain design notes not found on the manufacturer product page.

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EPC144L120 - Altera/Intel EPC1441 Configuration Device 120-QFP
EPC144L120

EPC144L120 - Altera/Intel EPC1441 Configuration Device 120-QFP

The Intel EPC144L120 is a member of the EPC1441 family of serial configuration devices, supplied by Intel (formerly Altera), designed to load the configuration bitstream of ACEX 1K, APEX 20K, FLEX 10K, and Mercury-class FPGAs over a single-wire serial interface. The EPC144L120 variant specifies the 120-pin QFP operating range and uses a low-voltage CMOS SRAM-based architecture to store the FPGA configuration image. A Configuration Device is a non-volatile (one-time-programmable, OTP) serial memory specifically architected to stream configuration data into an Altera FPGA during power-up. It connects to the host FPGA through a dedicated serial configuration interface (DATA, DCLK, nCONFIG, nSTATUS, CONF_DONE). Compared to a generic serial EEPROM, a configuration device adds FPGA-aware handshaking, automatic reconfiguration on bitstream error, and pin-level compatibility with Altera/Intel FPGA configuration controllers. Key features of the EPC144L120 family include 100,000 (EPC1441 naming convention indicates density family; specific density bits to be confirmed from datasheet) configuration bits, a continuous-streaming serial interface, 3.3 V or 5 V tolerant I/O, and a QFP-120 (L120 suffix) plastic package for surface-mount assembly. Programming is performed once by Altera's software tools, after which the device retains the bitstream indefinitely without external supplies. In a typical system, the EPC144L120 sits next to the target FPGA and is wired to its configuration pins. On power-up, the FPGA drives nSTATUS low, then the EPC144L120 clocks the bitstream out through DATA into the FPGA's configuration RAM. Engineers designing with this device should ensure proper decoupling on VCC and that the nINIT_CONF / nCONFIG pull-ups follow the Altera reference schematic, otherwise the device may fail to enumerate on cold start.

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EPC144L20 - 440kbit OTP Config PROM for FPGAs | Altera/Intel
EPC144L20

EPC144L20 - 440kbit OTP Config PROM for FPGAs | Altera/Intel

The Altera (Intel Programmable Solutions Group) EPC144L20 is an OTP (One-Time Programmable) configuration PROM designed to load configuration bitstreams into Altera FPGA devices at power-up, supplied in a 20-pin LCC (Leadless Chip Carrier) package. The device stores 440,800 bits organized as 440,800 × 1, and uses a serial interface that targets legacy Altera FPGA families. What is a configuration PROM? It is a non-volatile memory device that holds the FPGA's configuration bitstream and delivers it serially to the FPGA during power-up initialization, before the FPGA enters user mode. Without a configuration source, SRAM-based FPGAs cannot operate, because their configuration RAM is volatile. Configuration PROMs sit in the boot chain between the system power-on reset and the FPGA's configuration controller (e.g., Altera FPP, PS, or AS modes). Key features include a 3.3V single supply, a four-pin serial interface (nCS, DCLK, DATA, nCONFIG/nSTATUS) compatible with Altera's configuration controller, industrial operating temperature range, and a leadless ceramic-style 20-pin LCC package that supports socketed programming and high-reliability applications. The LCC package offers a compact footprint with perimeter leads that simplify board integration in legacy and industrial systems. The EPC144L20 uses an anti-fuse OTP cell array, meaning each bit can be programmed exactly once. After programming, the bitstream is permanent for the device lifetime. The serial interface is clocked by the FPGA at frequencies defined in the legacy Altera configuration protocol. The device is one of the older EPC1xxx family members (EPC1441/EPC144/EPC1213/EPC1064), predating the modern EPCQ serial flash family. Typical applications include legacy Altera FPGA configuration bitstream storage for FLEX 10K, ACEX 1K, APEX 20K, and Mercury FPGA families, factory-floor industrial controllers where the OTP cell ensures configuration stability, and aerospace/defense retrofits where socketed ceramic-style PROMs simplify field programming. When designing with this device, ensure the configuration mode selected in the FPGA matches the serial protocol expected by the EPC144L20. Voltage sequencing (VCC ramp before nCONFIG release) must follow the legacy Altera reference schematic. OTP programming requires a single programming cycle - re-programming an already programmed device is not possible. This page synthesizes legacy distributor availability, same-family drop-in alternatives (EPC1441LC20, EPC144ILC20), and design notes specific to legacy Altera configuration boot chains.

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EPC144LC-20 - Altera OTP Configuration PROM | 20-PLCC
EPC144LC-20

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.

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EPC144LC20 - 144KB Serial Config PROM, 20-LCC | Intel (Altera)
EPC144LC20

EPC144LC20 - 144KB Serial Config PROM, 20-LCC | Intel (Altera)

The Intel (formerly Altera) EPC144LC20 is a 144-Kbit serial configuration memory device in a 20-pin LCC (Leadless Chip Carrier) package, designed for configuring Altera FPGA families via the serial configuration scheme. It provides 144,000 bits of non-volatile storage that is loaded into the FPGA's configuration SRAM at power-up via the dedicated serial configuration interface (DATA, DCLK, nCONFIG, nSTATUS, CONF_DONE). An FPGA configuration PROM is a one-time or few-time programmable serial memory that holds the FPGA's bitstream. When the system powers up, the FPGA loads its logic configuration from the PROM through a synchronous serial link. The EPC144LC20 is part of Altera's classic EPC1 series configuration memories, designed to support legacy Altera FPGA families such as the FLEX 6000, FLEX 8000, FLEX 10K, ACEX 1K, MAX 7000, MAX 3000 and APEX 20K series. The PROM is organized as a serial shift register; an internal oscillator generates the configuration clock, simplifying host design. Key features include 144 Kbit storage capacity, automatic continuous configuration on power-up, low-pin-count serial interface (4 signal pins plus VCC/GND), 3.3V or 5V operation, in-system programmable via IEEE Std 1532 / Jam STAPL, and a compact 20-pin LCC surface-mount footprint (also known as LCC-20 or JLCC-20). The device is one-time programmable (OTP) in standard configuration, simplifying bill-of-material by removing external programming steps at board build. Programming is performed via the JTAG-compatible 4-wire interface using Altera's Quartus II / MAX+PLUS II toolchains. Typical applications include configuration memory for legacy Altera FPGAs, industrial controllers using FLEX 10K or APEX 20K devices, telecom line cards with MAX 7000 glue logic, retrofits of legacy Altera designs where original EPROM-based configuration is replaced by a single chip, and embedded systems that boot from a serial bitstream. The EPC144LC20 is also widely used in CPLD-based glue logic designs where a small FPGA is configured by an adjacent configuration PROM. When designing with this device, place decoupling capacitors as close as possible to the VCC pins (typically one 0.1 uF ceramic per supply pin). The LCC-20 package has no exposed thermal pad; the device draws minimal current during configuration (typically <50 mA active, <100 uA standby) so no heatsink is required. Ensure the JTAG chain (TCK/TMS/TDO/TDI) is terminated correctly if multiple Altera devices share the chain; use Altera's ByteBlaster or USB-Blaster cables for in-system programming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. The EPC144LC20 is a legacy configuration device with mature second-source options; consult the Intel (Altera) Configuration Devices datasheet for full timing specifications.

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EPC144PC8 - Altera 433800612 Configurator DIP-8 | Intel
EPC144PC8

EPC144PC8 - Altera 433800612 Configurator DIP-8 | Intel

The Altera (Intel) EPC144PC8 is a member of the Altera EPC144 family of serial configuration devices designed to load configuration bitstreams into SRAM-based FPGAs such as the EPF10K, FLEX 8000, and APEX families. Packaged in an 8-pin PDIP through-hole case, the part stores one bitstream (commonly referenced as Altera part number 433800612 / density-marked variant) and is specified for a commercial 0 °C to +70 °C operating range with a 4.75 V to 5.25 V supply rail. What is a configuration device? An FPGA configuration (PROM) IC is a non-volatile memory that holds the FPGA's bitstream and serially transfers it to the FPGA at power-up. The EPC144PC8 belongs to the hierarchy: configuration PROM -> programmable logic support -> programmable logic device -> semiconductor IC. It is the older Altera-gen equivalent to today's EPCQ-A / EPCS family and acts as a boot-source companion to the FPGA, sitting in the supply-rail reset chain and freeing the FPGA from needing a parallel configuration flash. Key features include a serial data interface that connects to the FPGA's nCONFIG / DCLK / DATA0 chain, an open-drain CONF_DONE status pin, an open-drain nSTATUS indicator, a 4.75 V to 5.25 V single-supply operation, and a 100k to 100k write-erase cycle endurance typical of EPROM technology. Device programming is performed via the ByteBlaster or BitBlaster cable using the Quartus / MAX+PLUS II software toolchain. Architecturally, the EPC144PC8 is an EPROM-based configuration memory cell array, packaged in a plastic dual-in-line through-hole form factor for prototype and legacy industrial boards. Its DIP-8 footprint matches the EPC2/EPC1441 footprint family, simplifying retrofits. Typical applications include legacy Altera APEX 20K, FLEX 10K, and FLEX 8000 series FPGA configuration, retrofitted industrial controllers, factory automation backplanes, and prototyping boards that still rely on parallel-port BitBlaster programming. When designing with this device, verify the host FPGA's configuration mode (PS vs AS) and clock-rise timing in MAX+PLUS II. The CONF_DONE and nSTATUS pins require external 4.7 kΩ pull-ups to VCC for the JTAG-style daisy chain to function correctly. This page synthesizes distributor pricing snapshots, drop-in same-package alternatives (EPC1441PC8, EPC144IPC8, EPC144PC8N), and practical design notes that the manufacturer datasheet alone does not aggregate.

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EPC144PI8 - Altera 144Kb Serial Config EPROM, 8-Pin DIP
EPC144PI8

EPC144PI8 - Altera 144Kb Serial Config EPROM, 8-Pin DIP

The Intel (formerly Altera) EPC144PI8 is a 144-Kbit serial-configuration EPROM designed to load the configuration bitstream of legacy Altera FPGAs such as the FLEX 6000, FLEX 8000, and early Cyclone-class devices at power-up. The 'PI8' suffix indicates an 8-pin PDIP (plastic DIP) package, industrial temperature grade, and the 1.8 V core process option. Configuration memory density is 144,096 bits, sufficient to program mid-range FPGAs of the FLEX series in a single device, and the chip is supplied in an 8-pin PDIP through-hole package for easy prototyping and field replacement. Key features include a simple 4-wire serial interface (DCLK, DATA, nCS, and nINIT_STATUS), low-power CMOS process technology, automatic power-on reset, and open-drain nINIT_STATUS output for chain-of-devices configuration. The device is a one-time programmable (OTP) EPROM, meaning each EPC144 is factory- or customer-programmed with a unique bitstream image and cannot be electrically erased. Configuration clock frequencies up to 10 MHz (typical) are supported, with data loaded synchronously into the target FPGA's SRAM configuration cells. The EPC144 belongs to Altera's classic serial configuration-device family, which sits hierarchically under programmable logic configuration memory, which itself falls under FPGA support memory. Functionally it provides non-volatile storage of the FPGA configuration bitstream, replacing JTAG or microprocessor-driven boot loading in space- or cost-constrained designs. The 8-pin PDIP form factor was Altera's standard footprint for configuration memory during the FLEX 6000 / FLEX 8000 era, and is pin-compatible with the EPC1, EPC2, EPC4, EPC8, and EPC16 devices within that family. Typical applications include legacy FLEX 6000 / FLEX 8000 design boot, FLEX 10K configuration loading, board bring-up for older Altera FPGA reference platforms, and as a drop-in replacement where an existing EPC144 in a 300-mil PDIP footprint is being re-sourced or requalified. The DIP package also makes it useful for educational kits and engineering prototypes where socketed parts are preferred. Designers should note that the EPC144PI8 has been classified as NRND/EOL by Altera/Intel for new designs: modern Cyclone, Cyclone II, Cyclone III and later devices use Altera/Intel EPCQ or compatible serial flash (typically 16-Mbit or larger). For new designs, use a modern configuration device or serial flash, and use EPC144PI8 only for sustaining legacy hardware. This page synthesizes distributor availability, same-package alternatives, lifecycle status, and practical replacement guidance that is not consolidated in any single source on the open web.

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EPC144TC32 - Altera 440kb OTP Configuration PROM | 32-TQFP
EPC144TC32

EPC144TC32 - Altera 440kb OTP Configuration PROM | 32-TQFP

The Altera (now Intel FPGA) EPC144TC32 is a one-time programmable (OTP) configuration memory device designed to store FPGA configuration bitstreams, providing 440,800 bits of storage in a 32-pin TQFP (7x7 mm) surface-mount package. It belongs to Altera's classic EPC family of serial configuration PROMs that were widely used with early Altera FLEX, ACEX, APEX, Cyclone, and Stratix series FPGAs. A configuration PROM (programmable read-only memory) is a non-volatile serial memory device that holds the FPGA's bitstream and serially configures the FPGA at power-on via a dedicated configuration interface. The EPC1xx family follows the hierarchy: configuration PROM -> serial memory -> non-volatile memory -> programmable logic support device. These devices replace EPROM/EEPROM-based configuration solutions and streamline FPGA boot logic by integrating the configuration controller, oscillator, and bitstream storage in a single chip. Key features of the EPC144TC32 include 440,800-bit storage capacity (sufficient for mid-density Altera FPGA bitstreams), a dedicated serial configuration interface (compatible with Altera FLEX/ACEX configuration schemes), low-power CMOS process technology, and an operating voltage range that aligns with classic 5V/3.3V Altera FPGA families. The 32-pin TQFP (7x7) package provides a compact footprint with surface-mount compatibility for volume manufacturing. Typical applications include Altera FLEX 10K, FLEX 6000, ACEX 1K, APEX 20K, and early Cyclone FPGA configuration storage in telecom, industrial control, networking, and embedded systems designs. The EPC144TC32 is most commonly found in legacy Altera-based designs and is often specified in long-lifecycle industrial and aerospace programs. When designing, note that the EPC144TC32 is OTP (one-time programmable) — once programmed, the bitstream cannot be erased or rewritten. For designs that require field re-programmability, the EPC2 or EPC4 erasable PROMs in the same TQFP-32 footprint should be considered. Verify that the specific Altera FPGA configuration mode (PS, AS, or JTAG) supports this device, as the EPC144 family targets older serial configuration schemes.

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EPC144TC32N - Enhanced Configuration Device, 32-pin TQFP | Intel (Altera)
EPC144TC32N

EPC144TC32N - Enhanced Configuration Device, 32-pin TQFP | Intel (Altera)

The Intel (formerly Altera) EPC144TC32N is an Enhanced Configuration (EPC) device in a 32-pin TQFP package, used to configure SRAM-based LUT devices such as the FLEX 8000 and FLEX 10K FPGA families. The EPC1441 device stores 440,800 bits of configuration data in serial EEPROM and supports in-system programmability via IEEE Std 1149.1 (JTAG) boundary-scan test, enabling designers to program, verify, and re-program FPGAs on the board without removing the device. An EPC (Enhanced Configuration) device is a serial-configuration memory that boots an SRAM-based FPGA at power-up. It sits on a dedicated serial configuration chain (typically 4- or 5-wire: nSTATUS, CONF_DONE, nCONFIG, DCLK, DATA0) and serially shifts the bitstream into the FPGA on every reset. EPC devices belong to the broader hierarchy of non-volatile configuration memory, distinct from parallel flash, microcontrollers, or CPLDs - they are specialized one-function parts optimized for low-cost, small-to-medium FPGA bitstream storage. The EPC1, EPC2, EPC4, EPC8, EPC16, EPC64 and EPC1441 form a density ladder from 1 Mbit to 16 Mbit. Key features of the EPC144TC32N include 440,800-bit (approximately 440 Kbit / ~54 KB) storage, 3.3 V core supply, in-system programmability through JTAG (IEEE 1149.1), a 4-pin JTAG interface (TMS, TCK, TDI, TDO), and industrial operating temperature range. The TQFP-32 surface-mount package gives a low profile and supports standard reflow soldering. Unlike parallel flash memory, the EPC1441 outputs configuration data serially at the DCLK rate controlled by the FPGA, simplifying board layout. Architecturally, the EPC144TC32N uses a serial EEPROM array with on-chip charge-pump for byte-write operations, an oscillator for internal timing, and a JTAG TAP controller for boundary-scan programming. The serial protocol is Altera-proprietary and designed so that the FPGA acts as the master during configuration - the EPC144TC32N does not arbitrate the bus. Programming voltage VPP is generated internally from VCC in normal mode, eliminating the need for an external 12 V supply. Typical applications include configuring Altera (now Intel) FLEX 8000, FLEX 10K, ACEX 1K, APEX 20K, Mercury, and older APEX II FPGAs in production hardware, prototype boards, and industrial control systems. The EPC1441 is commonly paired with mid-density FPGAs requiring bitstreams between 50 KB and 130 KB. For higher-density FPGAs (Stratix, Cyclone, Arria, Agilex) Intel now recommends their second-generation EPCQ serial flash, which uses standard SPI and supports higher clock rates. When designing with this device, ensure that the JTAG chain shares TDI/TDO with the FPGA in the proper order so the configuration device is accessible to the Quartus programmer. Decoupling (100 nF + 10 uF close to VCC and VPP pins) is required to keep the charge-pump stable during ISP. The EPC1441 supports both 3.3 V and 5 V tolerant I/O on the FPGA-facing pins, but VCC must remain within 3.0 V-3.6 V. Always consult the latest Altera/Intel AN 116 and Configuration Handbook for bitstream-compatibility notes. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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EPC144TI32 - 32-Pin TQFP Altera Configuration Device | Intel FPGA
EPC144TI32

EPC144TI32 - 32-Pin TQFP Altera Configuration Device | Intel FPGA

The Altera (Intel) EPC144TI32 is a serial configuration PROM from the EPC144 family, providing 441,000 bits of one-time-programmable serial configuration storage in a 32-pin TQFP package. Designed for use with Altera/Intel FPGAs such as the Cyclone, Stratix, and APEX families, this device loads configuration bitstreams into the FPGA's SRAM-based LUTs at power-up via the dedicated configuration interface. The 'I' suffix indicates the industrial temperature grade, and the 'N' indicator confirms lead-free / Pb-free construction per industry standards. A configuration PROM is a non-volatile memory device purpose-built for storing FPGA configuration bitstreams. In the Altera configuration hierarchy, the EPC family sits below SRAM-based LUTs (which must be re-loaded at every power-up) and above the host processor or JTAG chain. The PROM bitstream is shifted into the target FPGA's configuration RAM through a serial daisy-chain, with the FPGA's nCONFIG, nSTATUS, CONF_DONE, and DCLK signals orchestrating the handshake. Key features of the EPC144TI32 include 441,000 configuration-bit density (sufficient for mid-density FPGAs), a TQFP-32 surface-mount footprint, single-supply operation (typically 3.3 V VCC), in-system programmability through the JTAG-compatible interface, and industrial operating temperature range. It is pin-to-pin compatible with other EPC144 TQFP-32 variants, allowing design reuse across the EPC144 family and between industrial- and commercial-grade versions of the same density. Designers also benefit from drop-in compatibility with higher-density EPC devices (EPC1, EPC2, EPC4) in many reference designs, easing migration as design complexity grows. From an architectural standpoint, the EPC144TI32 uses a memory cell optimized for fast serial output rather than random-access read performance. Programming is performed in-system through the IEEE 1149.1 JTAG chain shared with the target FPGA. Device endurance is rated for one-time-programmable (OTP) operation; for in-application reconfigurability Altera recommends the EPCS-series (Serial Configuration) devices instead. Typical applications include FPGA configuration memory for industrial controllers, factory automation, telecommunications line cards, and test-and-measurement instruments that require reliable, compact, one-time-programmed FPGA boot storage. The TQFP-32 industrial-grade part also supports -40C to +85C ambient operation, suiting outdoor and uncontrolled-environment deployments. When designing with this device, ensure that the JTAG chain routing keeps the PROM-to-FPGA DCLK trace short and well-terminated to avoid configuration errors. VCC decoupling requires a 0.1 uF ceramic capacitor placed within 5 mm of the VCC pin. For designs that may require future bitstream updates, consider the EPCS-series instead. This page synthesizes distributor pricing, drop-in alternatives, application guidance, and practical design notes not found in the original EPC144 datasheet, giving engineers a single source for evaluating the EPC144TI32 against modern configuration PROM options.

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EPC1604PC8 - 5V/3.3V 64K-bit Serial Config EPROM DIP-8 | Altera
EPC1604PC8

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.

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EPC160C100 - Altera Enhanced Configuration Device | Intel FPGA
EPC160C100

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.

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EPC160I100 - Altera Enhanced Configuration Device, QFP-100 | Intel FPGA
EPC160I100

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.

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EPC164C88N - Altera/Intel Configuration Device for SRAM FPGAs
EPC164C88N

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.

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EPC1664PI8 - 16Mb Enhanced Config Device for Stratix/Cyclone | Altera
EPC1664PI8

EPC1664PI8 - 16Mb Enhanced Config Device for Stratix/Cyclone | Altera

The Altera EPC1664PI8 is a 16-Mbit Enhanced Configuration Device (EPC) supplied in an 8-pin PDIP (PI8) package, designed as a single-chip configuration memory solution for SRAM-based LUT FPGA families. It targets Altera Stratix, Cyclone, APEX II, APEX 20K, Mercury, and ACEX 1K devices, providing non-volatile storage for FPGA configuration bitstreams and supporting in-system programming via JTAG or the Altera ByteBlaster/MasterBlaster download cables. An Enhanced Configuration Device (EPC) is a member of the configuration-memory hierarchy used alongside PROMs, flash, and controller-based schemes. Conceptually it sits between generic serial PROMs (small bitstream storage) and full embedded memory controllers (large, multi-device solutions). EPC devices are purpose-built companions to Altera FPGAs, exposing a serial configuration interface that the FPGA masters at power-up. The EPC16 variant adds density, higher programming throughput, and cascade support relative to EPC4 and EPC8 predecessors. Key features include 16,777,216 bits (16 Mb) of configuration storage, cascadable architecture that allows two EPC devices to be chained for larger FPGA bitstreams, and a low-pin-count serial interface that frees board space. The device operates over the industrial temperature range and supports in-system programming, allowing firmware upgrades without removing the FPGA from the board. Technically, the EPC1664PI8 uses a 3.3 V supply and exposes a four-signal serial configuration bus (DATA, DCLK, nCONFIG, CONF_DONE plus JTAG). Programming algorithms are defined by the Altera Quartus II toolchain; the device appears as a JTAG-accessible target for boundary-scan and ISP. Read-back and verify operations are supported, simplifying board-level bring-up. Typical applications include factory programming stations for Altera/Intel Stratix and Cyclone boards, production programming of FPGA-based industrial controllers, telecom line cards, and legacy FPGA-based designs where board rework is undesirable. The PDIP-8 form factor also supports through-hole prototype sockets and easy rework in engineering builds. When designing in this part, ensure that the FPGA's MSEL pins select the EPC configuration mode, that nCONFIG and CONF_DONE are pulled correctly, and that the JTAG chain order matches the Quartus generated SOF/JIC file. Designers moving from 3.3 V to 1.8 V FPGAs should re-validate the level-shifter on the serial data path. This page synthesizes distributor pricing for the EPC1664PI8, Altera (Intel) configuration device family cross-references, and practical design notes not consolidated in the original datasheet.

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