Circuitos integrados

EPC1441PC8

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.

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EPC1441PCB

EPC1441PCB - Altera Enhanced Configuration Device for SRAM FPGAs

The Altera (Intel) EPC1441PCB is an Enhanced Configuration Device (PLCC-20 package) designed as a single-chip, high-speed configuration solution for very high-density SRAM-based FPGAs. It provides non-volatile storage and a controller that loads the FPGA configuration bitstream at power-up via the Altera serial or parallel configuration bus. The device supports ACEX 1K, APEX 20K, APEX II, FLEX 10K, FLEX 6000, FLEX 8000, and Mercury FPGA families, replacing older discrete PROM/EPROM + microcontroller solutions with a single 20-pin PLCC package. A configuration device is a non-volatile memory plus controller IC used to bootstrap SRAM-based FPGAs at power-on. SRAM FPGAs (such as Altera FLEX and APEX series) lose their configuration when power is removed, so they must be loaded from external non-volatile storage on every boot. The configuration device family sits in the boot hierarchy between the power supply, the FPGA, and the JTAG chain, providing a fast, in-system programmable configuration source. EPC1441PCB belongs to the Altera enhanced configuration family, which supersedes the older EPC1 and EPC2 devices by adding in-system programmability, faster configuration times, and higher density. Key features include 4,435,200 bits (approximately 4 Mb) of on-chip flash memory, in-system programmability via JTAG, automatic configuration of FPGAs at power-up, 3.3V core operation with 5V-tolerant I/O, and a 20-pin Plastic Leaded Chip Carrier (PLCC-20) package. The device uses a 4-pin Altera configuration interface (nSTATUS, nCONFIG, DCLK, DATA) for FLEX/ACEX series and adds CONF_DONE signals for APEX support, simplifying board layout. Operating temperature range is commercial 0C to +70C with low standby current suited for power-aware designs. The EPC1441PCB integrates a flash memory array, a configuration controller, and JTAG/IEEE 1149.1 boundary-scan logic on a single die. The controller handles bitstream decompression, error detection, and the serial/parallel handshake with the target FPGA, freeing the host processor from any boot-time intervention. The 4 Mb density supports full-configuration of medium-to-large Altera FPGAs such as APEX 20K200E and FLEX 10K100A without external storage. Typical applications include industrial control boards using FLEX 10K, communication line cards based on APEX 20K, test-and-measurement instruments built on ACEX 1K, and legacy replacement of older EPC2-based designs. The 4 Mb density makes it suitable for APEX 20K and FLEX 10K devices of moderate logic capacity. The PLCC-20 socket-friendly package is convenient for through-hole prototypes and field-serviceable systems. When designing with EPC1441PCB, place a 0.1 uF decoupling capacitor close to VCC and observe the 3.3V supply tolerance; 5V-only rails require a level shifter. JTAG chain ordering should place the configuration device first when multiple devices share the bus, and unused CONF pins must be left open per Altera application notes. This page synthesizes distributor pricing, package-level drop-in alternatives from the same Altera Enhanced Configuration family, and practical design notes not found in the original datasheet.

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EPC1441PI8

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.

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EPC1441PI8N

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.

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EPC1441PI8W

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.

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EPC1441PS8

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.

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EPC1441T32

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.

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EPC1441TC-32

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.

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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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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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Productos (39.000+)

EPC1441PC8 - 440Kb OTP FPGA Config PROM | 8-PDIP | Altera

EPC1441PCB - Altera Enhanced Configuration Device for SRAM FPGAs

EPC1441PI8 - 440kb OTP Configuration PROM for FPGAs | Intel

EPC1441PI8N - 440Kb OTP Config PROM, 8-PDIP | Altera / Intel

EPC1441PI8W - 440kb OTP Configuration PROM for FPGAs | Intel

EPC1441PS8 - 440Kb Altera Enhanced Configuration PROM | Intel (Altera)

EPC1441T32 - 440kb OTP Configuration PROM, 32-TQFP | Intel / Altera

EPC1441TC-32 - 440kb OTP Configuration PROM | Intel / Altera

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

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

EPC1441TI32 - 440kb OTP Config PROM for FPGAs | Altera

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

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

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

EPC144ILC20 - Altera 440kb Config EPROM, 20-PLCC

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

EPC144IPC8N - Altera/Intel Enhanced Configuration Device

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

EPC144L120 - Altera/Intel EPC1441 Configuration Device 120-QFP

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

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

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

EPC144PC8 - Altera 433800612 Configurator DIP-8 | Intel

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