FPGA & CPLD
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EPM7192SQC160-10 - 192-Macro MAX 7000S CPLD, 100MHz, PQFP-160 | Intel / Altera
The Intel / Altera EPM7192SQC160-10 is a high-performance, EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000S family, providing 192 macrocells, 4 Logic Array Blocks (LABs), 124 user I/O pins, and a 10ns pin-to-pin propagation delay in a 160-pin Plastic Quad Flat Pack (PQFP) package. It delivers up to 100MHz in-system performance with 5.0V in-system programmability (ISP) through a built-in IEEE Std. 1149.1 JTAG interface. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell blocks on a single chip, with deterministic timing and instant-on behavior. CPLDs sit in the broader programmable logic hierarchy between small SPLDs/galoS and large FPGAs, and are typically used for glue logic, bus interfacing, state machines, and I/O expansion where low latency, predictable timing, and instant-on non-volatile configuration are required. The EPM7192SQC160-10 supports approximately 3.75K usable gates and provides a multi-volt I/O interface (5.0V core, 5.0V-tolerant I/O in this 5V variant). It features four user I/O pins per macrocell group, programmable interconnect, and macrocell registers with individual clear, preset, clock, and clock-enable controls. The -10 speed grade denotes a 10ns tPD, allowing clock frequencies up to approximately 100MHz in synchronous designs. Architecturally, the MAX 7000S uses EEPROM cells for configuration, providing non-volatile storage that retains the design across power cycles without an external boot PROM. The second-generation MAX architecture includes enhanced interconnect, improved pin-locking, and the JTAG-based ISP capability, enabling in-circuit re-programmability for prototyping and field updates. Typical applications include bus-interface bridging (e.g., address decoding, bus arbitration), peripheral glue logic in microcontroller/DSP systems, I/O expansion and signal-level translation in industrial control boards, state machines and protocol conversion in legacy 5V designs, and PCI bus arbitration glue logic. When designing with this device, ensure the board layout keeps JTAG chain length short and that the 5V supply is well decoupled near the device. Note that the MAX 7000S family has been in mature production for many years and is supported primarily for legacy designs; new designs should consider MAX II, MAX V, or MAX 10 CPLDs from Intel. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate supply-chain options and migration paths.
EPM7192SQC160-10N - 192-Macrocell MAX 7000S CPLD, 10ns, 160-Pin PQFP | Altera
The Altera EPM7192SQC160-10N is a high-performance, EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000S family, delivering 192 macrocells, 3,750 usable gates, and a 10 ns pin-to-pin logic delay in a 160-pin Plastic Quad Flat Pack (PQFP/BQFP) package. It supports 124 user I/O pins and operates from a 5.0 V core supply with 5.0 V in-system programmability (ISP) through the built-in IEEE Std. 1149.1 Joint Test Action Group (JTAG) interface. According to the manufacturer datasheet, the device is fabricated on a 0.30 µm CMOS EEPROM process and supports system frequencies up to 100 MHz. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell blocks interconnected by a programmable switch matrix. Within the broader semiconductor taxonomy, a CPLD sits between simple SPLDs (e.g., PAL/GAL) and FPGAs, offering deterministic timing, instant-on configuration from on-chip EEPROM, and high fan-in logic — making it ideal for glue logic, bus decoding, and interface bridging. The MAX 7000S series specifically adds in-system programmability via JTAG, enabling field upgrades without removing the device from the board. Key differentiating features of the EPM7192SQC160-10N include its 12 Logic Array Blocks (LABs) of 16 macrocells each, a programmable speed/power optimization mode that lets speed-critical portions of a design run at full speed while other portions run at 50% lower power with only a nominal timing penalty, and four dedicated global clock inputs. Each macrocell contains a programmable AND/OR/flip-flop array with configurable clear, preset, and clock modes. The device supports multiple I/O standards including 5.0 V CMOS and 3.3 V PCI-compatible signaling through its JTAG-configurable I/O structure. The MAX 7000S architecture provides predictable, deterministic timing because every logic path traverses the same predictable interconnect structure — unlike SRAM-based FPGAs that require device configuration on power-up. This makes the EPM7192SQC160-10N particularly well-suited to applications where instant-on behavior is critical and where designers need fixed propagation delays for worst-case timing analysis. The 10 ns tPD (pin-to-pin delay) of this -10N speed grade supports clock frequencies up to 100 MHz in combinatorial paths. Typical applications include address decoding for microprocessor and DSP systems, bus interfacing and arbitration logic (e.g., between an MCU and external peripherals), state-machine control for industrial automation, peripheral chip-select generation, and glue-logic replacement of discrete TTL/CMOS parts. Designers frequently choose this part when they need non-volatile, deterministic logic with the convenience of JTAG in-system reprogrammability. When designing with this device, pay careful attention to I/O bank supply pin requirements — VCCINT and VCCIO may need separate rails depending on the mixed-voltage interface scheme, and unused pins should be configured as outputs driving ground to minimize power. The 160-pin PQFP footprint requires careful PCB routing given the 0.65 mm pitch; an external JTAG header is recommended for ISP access during prototyping and field firmware updates. This page synthesizes distributor pricing, drop-in same-package alternatives from the MAX 7000S family, and practical design considerations not aggregated in any single manufacturer document.
EPM7192SQC160-15 - MAX 7000S CPLD, 192 Macrocells, 15ns | Altera
The Altera EPM7192SQC160-15 is a high-density, high-performance CMOS Complex Programmable Logic Device (CPLD) from the MAX 7000S family, based on Altera's second-generation MAX architecture. It provides 192 macrocells, 3,750 usable gates, 124 user I/Os, and a 15 ns pin-to-pin logic delay, all housed in a 160-pin PQFP package. The device operates at 5 V and supports 5.0-V in-system programmability (ISP) through the built-in IEEE Std. 1149.1 JTAG interface. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines the deterministic timing of PAL/GAL architectures with the density of multiple macrocell logic array blocks (LABs) interconnected via a programmable interconnect matrix (PIA). CPLDs sit between simple SPLDs/PLDs and FPGAs in the programmable logic hierarchy, offering fast, predictable input-to-output delays (suitable for glue logic and bus decoding) and instant-on configuration from on-chip EEPROM — without the external boot flash an FPGA usually requires. Key features include 4 Logic Array Blocks (LABs) of 36 macrocells, programmable interconnect with 100% connectivity, programmable output slew rate, JTAG boundary-scan support, and macrocell registers with individual clear, preset, clock, and clock-enable controls. Operating frequency is specified at 76.9 MHz with a worst-case 15 ns tPD. The PQFP-160 package gives 124 usable I/O pins, suitable for high-fanout glue-logic designs. The MAX 7000S architecture uses an EEPROM-based configuration cell array, so the device retains its logic pattern with no external boot memory and can be reprogrammed in-circuit up to 100 cycles. The 5.0-V ISP interface uses the standard 4-wire JTAG TAP, simplifying board-level bring-up. Each macrocell supports combinatorial or registered operation with separate sum-of-products terms for both output enable and registered feedback, giving flexible control over tri-state buses and registered outputs. Typical applications include bus interface bridging, address decoding and glue logic for microprocessor systems, peripheral controller hubs, JTAG-controlled board-level configuration, and replacement of multiple discrete 74LS/74F/74HC TTL packages. It is also used in legacy industrial controllers and avionics subsystems where instant-on, non-volatile logic is mandatory. When designing with this part, pay attention to the 5 V VCC requirement and observe the JTAG ISP programming voltage levels. Decoupling should follow the manufacturer guidance with 0.1 µF caps close to each VCC/GND pair. For new designs, consider MAX II or MAX V devices unless EEPROM-based instant-on is required. This page consolidates distributor pricing, drop-in same-brand variants, and practical JTAG/ISP design notes not found in the original datasheet alone.
EPM7192SQC160-7N - MAX 7000S 192-Macro CPLD, 7.5ns, PQFP-160 | Altera
The Altera (Intel) EPM7192SQC160-7N is a high-density, EEPROM-based Complex Programmable Logic Device (CPLD) from the second-generation MAX 7000 family, housed in a 160-pin PQFP (Plastic Quad Flat Pack) package with 192 macro cells, 124 user I/Os, a 7.5 ns pin-to-pin propagation delay, and an internal counter frequency of 167 MHz at the -7 speed grade. The 'N' suffix indicates a lead-free / Pb-free terminal finish suitable for modern RoHS-compliant PCB assembly lines. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that sits between simple PLDs (PAL/GAL) and FPGAs in the programmable logic hierarchy. It uses an EEPROM or flash process to retain its configuration without an external boot memory, providing fast, deterministic combinational and registered logic with predictable timing. CPLDs are typically chosen for glue logic, bus interfacing, state-machine control, and system-level signal management where instant-on behavior and low power are essential. Key features of the EPM7192SQC160-7N include 3,750 usable gates, IEEE 1149.1 JTAG boundary-scan support, 5.0-V in-system programmability (ISP) through the JTAG port, and a commercial operating temperature range of 0 to 70 C. The MAX 7000 architecture provides a Programmable Interconnect Array (PIA) that routes signals between Logic Array Blocks (LABs), each containing 16 macro cells. The device supports user-selectable 3.3-V or 5.0-V I/O operation with multi-voltage interface capability, allowing direct connection to TTL, CMOS, and PCI-compatible buses. Typical applications include peripheral bus interfacing, address decoding and decoding for 8/16/32-bit microprocessors, state-machine controllers, and high-speed glue logic in telecom, industrial, and legacy computing platforms. The 5-V tolerant I/O and JTAG ISP also make it well suited to production-line programming and field upgrades through a standard 4-wire JTAG header. When designing with this device, ensure that the 5-V VCCIO rail is well decoupled with 0.1 uF and 10 uF capacitors placed close to the supply pins, and respect the maximum I/O current rating per bank. Programming should be performed using Altera/Intel Quartus II or the legacy MAX+PLUS II toolchain with a ByteBlasterMV or USB-Blaster download cable.
EPM7192SQI160-10 - MAX 7000S CPLD 192 Macrocell | Altera
The Altera EPM7192SQI160-10 is a MAX 7000S-series Complex Programmable Logic Device (CPLD) with 192 macrocells, 124 user I/O pins, and a 10 ns pin-to-pin propagation delay, housed in a 160-pin plastic QFP package. It is a 5.0 V EEPROM-based programmable logic device built on Altera's second-generation MAX architecture, offering in-system programmability (ISP) and an internal counter frequency of 167 MHz. A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple logic macrocells and a programmable interconnect array on a single die, providing deterministic non-volatile logic that is active immediately at power-up. In the product taxonomy, a CPLD sits between simple PLDs and FPGAs: CPLD -> programmable logic device (PLD) -> digital logic IC -> semiconductor. Unlike SRAM-based FPGAs, EEPROM-based MAX 7000S devices retain their configuration without an external boot device, which simplifies board bring-up and eliminates configuration-loading latency. Key features of the EPM7192SQI160-10 include 192 macrocells, 124 user I/O pins, 7.5 ns propagation delay, 167 MHz internal frequency, 5.0 V ISP, and an industrial temperature range of -40 C to +85 C. The 160-pin QFP package provides ample I/O for glue-logic consolidation, bus bridging, and state-machine implementations. The MAX 7000S architecture uses a programmable interconnect array (PIA) to route signals between logic array blocks (LABs), each containing 16 macrocells with individual product-term allocation. This architecture delivers predictable, fixed timing independent of routing, a critical advantage over FPGA fabric for deterministic control paths. Typical applications include industrial control glue logic, bus interface and protocol bridging, power-up sequencing state machines, legacy system replacement, and instrumentation front-end control. The 5.0 V I/O interface allows direct connection to legacy TTL/CMOS peripherals without level shifters. When designing with this device, note that the MAX 7000S family is a mature, legacy architecture; verify availability and consider MAX II or MAX V migration for new designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPM7192SQI160-10N - MAX 7000S CPLD, 192 Macrocells, 100MHz | Altera
The Intel (formerly Altera) EPM7192SQI160-10N is a high-density, high-performance CMOS CPLD from the MAX 7000S family, packaged in a 160-pin PQFP and featuring 192 macrocells, 124 user I/Os, and 3.75K usable gates with -10 speed grade (10 ns pin-to-pin delay). The 'N' suffix denotes the industrial operating temperature range of 0C to 70C, while the 'S' indicates in-system programmability via 5.0V EEPROM. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that sits between simple PAL/GAL devices and high-density FPGAs in the programmable logic hierarchy. CPLDs are characterized by instant-on (no boot/configuration load required), deterministic timing, and EEPROM or flash-based configuration that retains its bitstream through power cycles. They belong to the broader class of programmable logic devices (PLDs) and are widely used for glue logic, bus interfacing, and state-machine implementation where fast, predictable response is more important than raw logic density. Key features of this part include a 10 ns pin-to-pin propagation delay, internal counter frequencies up to 167 MHz, 5.0V in-system programmability (ISP) via JTAG, and support for hot-socketing. The device is fabricated in 5V CMOS technology and integrates 192 macrocells arranged in Logic Array Blocks (LABs) interconnected by a programmable interconnect array (PIA). It also supports the IEEE 1149.1 boundary-scan standard for board-level testability. From an architectural perspective, the MAX 7000S family uses Altera's second-generation MAX architecture with each macrocell containing a programmable AND/OR array, a flip-flop, and product-term allocation logic. The EEPROM configuration memory provides non-volatile storage without external boot devices, and the 5V-tolerant I/O structure allows direct interface with TTL and CMOS logic of mixed-voltage systems without level-level shifting in most cases. Typical applications include bus interfacing (PCI bridge glue logic, address decoding), state-machine controllers in industrial automation, glue logic between microprocessors and peripherals, motor-control sequencing in factory automation, and legacy 5V system designs where non-volatile, deterministic logic is required. Designers should note the PQFP-160 package's lead pitch of 0.5 mm and verify PCB footprint compatibility with the device footprint before re-spinning layouts. The 5V supply requirement is non-negotiable; this device is not compatible with 3.3V-only rails without a level translator. Programming is performed via JTAG using Altera/Intel Quartus or legacy MAX+PLUS II software. This page synthesizes distributor stock data, drop-in alternative MPNs, and practical design notes - including board-level implementation guidance - not found in the standalone manufacturer datasheet.
EPM7256AEFC100-10N - MAX 7000 CPLD, 256 Macro, 10ns, 100-FBGA | Altera
The Altera (now Intel) EPM7256AEFC100-10N is a high-performance 3.3V EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000A family, featuring 256 macrocells, 16 logic array blocks (LABs), and 84 user I/O pins in a 100-ball FineLine BGA (FBGA, 11x11 mm) package. It implements the second-generation Multiple Array MatriX (MAX) architecture with a 10 ns pin-to-pin logic delay (tPD) and a 154.8 MHz maximum operating frequency, making it suitable for high-speed glue-logic, bus-interface, and state-machine replacement roles in telecom, industrial, and computing equipment. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple SPLDs/FPGAs and discrete logic in the programmable-logic taxonomy (CPLD -> programmable logic -> semiconductor). MAX 7000A devices are built on a 0.30 µm EEPROM process and provide 5,000 usable gates, in-system programmability (ISP) through the IEEE 1149.1 Joint Test Action Group (JTAG) interface, and 3.3V core operation that is 5V-tolerant on I/O pins. CPLDs are typically chosen when deterministic timing, instant-on non-volatile configuration, and high drive strength are required - features that FPGAs cannot match without external configuration memory. Key features of the EPM7256AEFC100-10N include 256 macrocells distributed across 16 LABs (16 macrocells per LAB), 84 user I/O pins on a 100-ball FBGA footprint (11 x 11 mm), four dedicated inputs, an internal 3.3V operation with 5V-tolerant I/O, multiVolt I/O supporting 1.8V/2.5V/3.3V/5V mixed-voltage environments, JTAG-based IEEE 1149.1 boundary-scan and ISP, and built-in PCI compatibility. The -10 speed grade indicates a 10 ns maximum pin-to-pin delay (tPD), making this variant suitable for sub-100 MHz synchronous designs where -7 (7.5 ns) or -15 (15 ns) alternatives may be over- or under-specified. Architecturally, the device combines a programmable AND/OR/PLA-style logic fabric with a global interconnect, a per-macrocell flip-flop with selectable clear/preset/clock, and a programmable interconnect array (PIA) that routes signals between LABs with deterministic delay. The EEPROM-based configuration cell provides instant-on behavior in under 100 µs and supports 100 in-system program/erase cycles, enabling field upgrades without removing the device from the board. Typical applications include high-speed bus-interface bridging (PCI, ISA, VME, PCMCIA), address decoding and chip-select generation for microprocessors and DSPs, glue-logic consolidation in networking line cards and base stations, peripheral interfacing in telecom and industrial control equipment, and state-machine implementation where deterministic 10 ns timing is required. Designers should ensure that the JTAG pins (TCK, TMS, TDI, TDO) are accessible for ISP, that decoupling capacitors (0.1 µF and 10 µF) are placed within 5 mm of each power pin, and that unused I/O are explicitly configured as outputs or inputs in the Quartus/MAX+PLUS II design to avoid floating-pin failures.
EPM7256AEFC100-7 - 256-Macrocell MAX 7000A CPLD, 100-FBGA | Intel
The Intel EPM7256AEFC100-7 is a high-density, in-system-programmable CPLD from the MAX 7000A family, integrating 256 macro cells (5,000 usable gates) in a 100-pin FineLine BGA (FBGA) package. It operates from a single 3.3 V supply (3.0 V – 3.6 V) and supports pin-to-pin propagation delays of 7.5 ns, with internal toggle rates up to 250 MHz and a maximum operating frequency of 126.6 MHz. The device exposes 84 user I/Os for high-density glue-logic, bus-interface, and state-machine integration. A CPLD (Complex Programmable Logic Device) is a non-volatile, instantly-on programmable logic device that sits between discrete 74-series glue logic and larger FPGAs. It is typically used to implement boot-time-immune decode logic, I/O expander bridges, bus-arbitration state machines, and address-latching interfaces, and it boots in milliseconds because configuration is stored in on-chip EEPROM rather than loaded from external flash. Key features include in-system programmability via IEEE 1149.1 JTAG, 5 V tolerant I/O, programmable power management with pin-per-pin enable/disable, and four global clock networks with product-term or I/O-pin control. Each macro cell contains a programmable AND/OR array with a register that can be configured as D, T, JK, or SR flip-flop, and the 256 macro cells are partitioned into 16 Logic Array Blocks for efficient partitioning of wide decode and arithmetic functions. The MAX 7000A architecture combines an EEPROM-based configuration memory (true non-volatility - no external boot PROM) with a MultiVolt core and MultiVolt I/O interface, allowing the core to operate at 3.3 V while the I/O banks interface directly to 2.5 V, 3.3 V, or 5 V devices. The 100-pin FBGA offers a compact footprint that suits high-density PCB designs where TQFP variants would be too large. Typical applications span industrial control boards, telecom base-station glue logic, PCI/ISA bus decode in legacy industrial backplanes, address decoding in 32-bit embedded systems, and prototype ASIC replacement. Designers choose the MAX 7000A family for instant-on behavior, deterministic timing, and a known-silicon IP portfolio that has shipped for decades. When designing with this part, observe the 3.3 V VCCINT supply (separate from VCCIO if MultiVolt is used), keep JTAG chain lengths short, and respect the 100-FBGA thermal pad layout recommended in the Intel MAX 7000A device handbook. Decoupling the eight VCCINT and four VCCIO balls with 0.1 uF X7R ceramics placed within 3 mm of each ball cluster is recommended for reliable in-system programming. This page synthesizes distributor pricing as of 2026-09-13, MAX 7000A family drop-in alternatives, and practical design notes that complement (and do not duplicate) the official MAX 7000A device handbook.
EPM7256AEFC256-5N - 256-Macrocell CPLD, 5ns, FBGA-256 | Intel
The Intel EPM7256AEFC256-5N is a high-performance Complex Programmable Logic Device (CPLD) from the MAX 7000A family, delivering 256 macrocells, 16 logic array blocks, and a 5ns maximum propagation delay in a 256-ball Fine-pitch BGA (FBGA) package measuring 17mm x 17mm. The device integrates approximately 5,000 usable gates and offers 164 user I/O pins, providing ample density for high-speed glue-logic, bus-interface bridging, and state-machine consolidation in industrial and communications systems. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays on a single chip with a programmable interconnect matrix. Architecturally, a CPLD sits between simple SPLDs and high-density FPGAs in the programmable logic taxonomy: SPLD -> CPLD -> FPGA -> programmable logic -> digital IC -> semiconductor. Because CPLDs use flash- or EPROM-based non-volatile configuration, they power up instantly without external boot memory and offer deterministic, pin-locked timing that is preferred over FPGAs for control-plane glue logic. Key features of the EPM7256AEFC256-5N include 3.3V core operation with 5V-tolerant I/O, IEEE 1149.1 JTAG boundary-scan support, in-system programmability via JTAG, and an internal fMAX of 172.4MHz. The device supports multi-volt I/O interfacing between 2.5V, 3.3V and 5V systems, which makes it a natural bridge between legacy 5V peripherals and modern low-voltage ASICs or microcontrollers. The MAX 7000A architecture implements each macrocell with a programmable AND/OR array, a flip-flop, and a programmable output enable, with shared expanders and parallel expanders allowing efficient wide fan-in logic. The 5ns pin-to-pin delay and 172.4MHz internal frequency make this device well-suited for high-speed address decoding, interrupt steering, and synchronous state machines operating above 50MHz. Typical applications include high-speed bus decoding and bridging, address/data-validity generation for legacy microprocessors, I/O expansion for FPGAs lacking unused pins, glue-logic consolidation in telecom backplanes, and industrial PLCs. This device is also widely used in prototyping interfaces between 5V peripherals and 3.3V processors. When designing with this CPLD, remember that the FBGA-256 package is non-repairable once soldered - allocate a JTAG header on every board for in-system reprogramming and bench recovery.
EPM7256AEFI100-7 - MAX 7000A CPLD, 256 Macrocells | Intel / Altera
The Intel (formerly Altera) EPM7256AEFI100-7 is a high-density member of the MAX 7000A Complex Programmable Logic Device (CPLD) family, delivering 256 macrocells, 5K usable gates, and 84 user I/O pins in a 100-ball FineLine BGA (FBGA) package. It operates at a 3.3 V core supply with a 7.5 ns pin-to-pin logic delay (the "-7" speed grade), making it well suited to bus-isolation, address-decoding, glue-logic, and high-speed state-machine designs in industrial and telecom equipment. The "AE" infix denotes the in-system programmability window and industrial temperature range (typically -40C to +85C). Per the manufacturer description on Arrow and Heisener, the part is a 5K-gate, 256-macrocell, 126.6 MHz MAX 7000A device in a 100-pin FBGA tray. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like logic blocks on a single chip with a programmable interconnect matrix. In the broader taxonomy, a CPLD sits between a small FPGA and a discrete gate array: it provides deterministic, propagation-delay-based timing (often called "PAL-like" timing) with instant-on, flash- or EPROM-backed configuration. Designers typically use a CPLD when the design is dominated by wide combinational logic, decoders, and registered I/O - exactly the use cases the MAX 7000A family was designed for. The EPM7256AEFI100-7 features 256 macrocells organized in logic array blocks (LABs), each containing 16 macrocells, with a programmable interconnect array (PIA) routing signals between LABs and to the I/O pins. The device supports JTAG-based IEEE 1149.1 boundary-scan test and in-system programmability through Altera's legacy programming tools (MAX+PLUS II or Quartus II). MultiVolt I/O supports interfacing to 2.5 V, 3.3 V, and 5.0 V logic families without external level shifters, which is critical when bridging legacy 5 V peripherals to modern 3.3 V processors. Typical applications include PCI/ISA bus address decoding and chip-select generation, asynchronous state machines for industrial controllers, I/O expansion and level translation between 5 V and 3.3 V domains, and configuration/reset sequencing for microprocessors and DSPs. The 100-ball FBGA package provides high board-density routing for designs that need all 84 I/O on a small PCB footprint. When designing with this part, ensure the JTAG chain order matches the BSDL file order in the Altera documentation. Decoupling must use 0.1 uF and 0.01 uF ceramic capacitors placed within 5 mm of each supply ball. Quiescent current for the MAX 7000A family is in the tens of milliamps; thermal dissipation is usually not a concern at typical clock rates, but junction temperature must stay within the -40 C to +85 C industrial range. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical glue-logic design notes that are not aggregated in a single place in the manufacturer datasheet, helping procurement and design engineers evaluate the EPM7256AEFI100-7 against modern and legacy substitutes.
EPM7256AEFI256-7 - MAX 7000A CPLD 256-Macro 164-IO FBGA | Altera
The Altera (Intel Programmable Solutions Group) EPM7256AEFI256-7 is a high-density member of the MAX 7000A family of CMOS Complex Programmable Logic Devices (CPLDs), packaged in a 256-pin Fine-pitch Ball Grid Array (FBGA) with 256 macro cells, 164 user I/Os, and 5,000 usable gates, operating from a 3.0V to 3.6V core supply. The -7 speed grade delivers a maximum pin-to-pin propagation delay (tPD) of 7.5 ns and a maximum counter frequency (fCNT) of 126.6 MHz, with PCI-compatible timing in the -4, -5, -6, and -7 speed grades per the PCI Local Bus Specification, Revision 2.2. The device is in-system programmable through the IEEE 1149.1 (JTAG) interface and supports the 4-pin JTAG protocol for boundary-scan test. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macrocell arrays on a single chip with a programmable interconnect network. CPLDs sit between simple SPLDs/PLDs and higher-density FPGAs in the programmable logic hierarchy, providing deterministic, predictable timing (typically 1 to 10 ns propagation delays), instant-on behavior from on-chip EEPROM, and a Logic Element Block (LEB) architecture suited to glue-logic, decoder, bus-interface, and state-machine replacement. The MAX 7000A family in particular targets PCI bus interface, peripheral bridging, and bus-arbiter designs where 5V-tolerant I/O and 3.3V core operation are required. Key features of the EPM7256AEFI256-7 include 16 Logic Array Blocks (LABs), each containing 16 macro cells for a total of 256 macro cells; 164 programmable I/O pins shared with dedicated JTAG and global control functions; in-system programmability (ISP) via JTAG; multi-volt I/O supporting 2.5V/3.3V/5.0V mixed-voltage interfacing; and a commercial operating-temperature grade of -40C to +85C. The device is PCI SIG-compliant for 33 MHz PCI 2.2 bus use in the -7 speed grade, making it a natural fit for legacy PCI add-in cards and embedded peripheral controllers. The architecture is built on a CMOS EEPROM-based macrocell fabric with a unified interconnect matrix that delivers fixed, deterministic propagation delays independent of routing density, in contrast to SRAM-based FPGAs whose timing depends on placement and routing. Each macro cell contains a programmable AND/OR array, a flip-flop, and a programmable output enable. The 256-pin FBGA package provides high I/O density for glue-logic-heavy designs and is footprint-compatible with other EPM7256AEFI256-xx speed-grade and temperature-grade variants in the same family. Typical applications include PCI peripheral interface logic (33 MHz), glue logic for microprocessor and DSP systems, bus decoders and arbiters, peripheral bus-bridges between ISA/PCI and local microcontrollers, state-machine and sequencer replacement in industrial controllers, and JTAG-based boundary-scan chain extension for board-level test. Designers migrating from 5V-only legacy PLDs use the MAX 7000A's mixed-voltage I/O to bridge 5V peripherals to a 3.3V core without external translators. When designing with this part, plan for a clean 3.3V rail with adequate bulk decoupling on each FBGA power pin pair (VCCINT and VCCIO), because the FBGA package's multi-row ball array requires careful PCB fan-out. Use the Quartus II or MAX+PLUS II design software for fitting, simulation, and JTAG programming; legacy MAX+PLUS II projects must be migrated to Quartus II for newer tool support. Always verify that the I/O bank voltage matches the driven peripheral's VOH/VOL requirements, as the multi-volt I/O core uses separate VCCIO rails per bank. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers source long-lifecycle parts for industrial and embedded systems.
EPM7256AEQC208-5N - MAX 7000A CPLD, 256 Macro, 5ns | Intel
The Intel (formerly Altera) EPM7256AEQC208-5N is a high-density CMOS Complex Programmable Logic Device (CPLD) from the MAX 7000A family, delivering 5,000 usable gates, 256 macrocells, and 164 user I/Os in a 208-pin PQFP package with -5 speed grade (5.5 ns pin-to-pin propagation delay). It operates from a 3.3 V core supply and supports in-system programmability via the IEEE Std. 1149.1 (JTAG) interface. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple PAL/GAL devices and high-density FPGAs in the programmable logic hierarchy: SPLD -> CPLD -> FPGA. Unlike SRAM-based FPGAs, MAX 7000A devices use EEPROM configuration cells that retain the bitstream without external memory, enabling instant-on behavior. Within the broader taxonomy of digital semiconductors, the EPM7256AEQC208-5N belongs to programmable logic -> logic ICs -> integrated circuits. Key features include a maximum internal frequency of 172.4 MHz, a 4.5 ns registered propagation delay, and 16 dedicated input pins plus 164 bidirectional I/O pins. The architecture combines the FastTrack interconnect matrix with each macrocell containing a programmable AND/OR array, a product-term allocator, and a flipflop. The 3.3 V supply reduces power consumption by approximately 50% versus the legacy 5 V MAX 7000 family while preserving pin compatibility with existing designs. Typical applications include bus interface bridging, glue-logic consolidation, peripheral I/O expansion, and control-state-machine implementation in telecom, industrial, and embedded systems. Designers use the part to replace discrete 74LS/74HC logic, reducing board area and BOM cost. The JTAG chain and built-in ISP (In-System Programmability) enable field firmware updates without removing the device from the board, a key advantage in deployed systems. When designing with this device, ensure the Quartus II / MAX+PLUS II design software is used for fitting and that the JTAG pins (TDI/TDO/TMS/TCK) are pulled to valid logic levels through 10 kohm resistors. The PQFP-208 footprint requires a 0.5 mm lead pitch and IPC-7351 land patterns, and the device is rated for commercial temperature operation (0 C to +70 C). This page synthesizes distributor pricing, same-brand drop-in alternatives drawn from the MAX 7000A family, and practical design notes not found in the manufacturer datasheet.
EPM7256AEQI208-7N - 256-Macrocell 3.3V CPLD | Altera
The Altera EPM7256AEQI208-7N is a MAX 7000A-family Complex Programmable Logic Device (CPLD) offering 256 macrocells, 164 user I/O pins, and 5,000 usable gates with a 7.5 ns pin-to-pin propagation delay, housed in a 208-pin PQFP (FQFP) package. It operates from a 3.3 V supply and is rated for the industrial temperature range. A CPLD (Complex Programmable Logic Device) is a programmable logic IC built from an array of macrocells and a programmable interconnect matrix. Unlike an FPGA, which uses SRAM configuration and volatile lookup tables, the MAX 7000A family is EEPROM-based, so the configuration is retained without an external boot device. In the logic hierarchy, a CPLD sits between discrete glue logic and full FPGAs: CPLD -> programmable logic device (PLD) -> digital logic IC -> semiconductor. Key features of the EPM7256AEQI208-7N include 256 macrocells organized into 16 logic array blocks, 164 I/O pins, a maximum internal frequency of 126.6 MHz, and a 7.5 ns pin-to-pin delay. The 3.3 V core keeps dynamic power low while remaining 5 V tolerant on I/O, simplifying mixed-voltage board design. EEPROM configuration means the device is live within microseconds of power-up, which is critical for power sequencing and bus arbitration logic. The MAX 7000A architecture uses product-term logic with programmable interconnect, giving deterministic, predictable timing - a key advantage over SRAM-based FPGAs for control-path logic. The 208-pin PQFP package provides ample I/O for bus bridging and glue-logic consolidation. Typical applications include PCI/ISA bus interface logic, DSP and microcontroller glue logic, power-up sequencing controllers, and legacy industrial control boards. The industrial temperature rating supports factory automation and telecom line-card environments. When designing with this device, note that it is a mature, non-volatile part; verify lifecycle status before committing to new production, and confirm the 7.5 ns speed grade meets your critical path. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPM7256AETC100-10N - 256-Macro MAX 7000A CPLD, 10ns, TQFP-100 | Intel (Altera)
The Intel (formerly Altera) EPM7256AETC100-10N is a high-performance, 3.3 V EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000A family, providing 256 macro cells, 5,000 usable gates, and 84 user I/Os in a 100-pin TQFP package. It features a 10 ns pin-to-pin logic delay, a maximum operating frequency of 125 MHz, and in-system programmability via IEEE Std. 1149.1 JTAG. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines the architectural simplicity and predictable timing of PAL/GAL technology with higher density and I/O count. CPLDs sit in the programmable logic hierarchy alongside FPGAs, but typically deliver faster deterministic propagation delays, lower power, and instant-on behavior from on-chip EEPROM. The MAX 7000A family uses a second-generation Multiple Array Matrix (MAX) architecture with the Logic Array Blocks (LABs), interconnect between LABs, and a bank of I/O control blocks with per-pin options for 3.3 V PCI compliance. Key features of the EPM7256AETC100-10N include four dedicated inputs usable as global clock, clear, and output enable signals, a 2.5 ns pin-to-pin logic delay at interconnect, an I/O bank supporting 3.3 V PCI with MultiVolt I/O for interfacing to 2.5 V, 3.3 V, and 5.0 V mixed-voltage rails, and built-in JTAG boundary-scan test support. The 10 ns speed grade targets designs where fast deterministic timing is critical, and the 100-pin TQFP footprint provides a compact, surface-mount, lead-free option for production boards. Architecturally, the part is built on a 0.30 µm EEPROM process with 16 LABs of 16 macro cells each, the classic MAX interconnect matrix, and a 36-bit programmable trigger in every macro cell. The device supports combinatorial and registered logic with per-pin slew-rate control, making it well suited for glue logic, bus decoding, and high-speed control interfaces. Typical applications include address decoding for microprocessors and DSPs, peripheral bus interfacing (PCI, ISA, VME), state-machine controllers, industrial I/O expansion, and JTAG-driven board test infrastructure. The instant-on, non-volatile configuration makes it a strong fit for safety-conscious systems that must boot in deterministic time without an external configuration flash. When designing with this part, place decoupling capacitors (typically 0.1 µF and 10 µF) close to every VCC/GND pair, observe the JTAG chain topology (TDI -> device -> TDO) when multiple devices share the bus, and respect the 3.3 V core supply ramp requirements from the datasheet. The exposed thermal pad (when present on this TQFP) should be soldered to a ground pour for mechanical and thermal performance. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found on the manufacturer datasheet, helping engineers evaluate the EPM7256AETC100-10N for both new designs and legacy board repairs.
EPM7256AETC100-5C - MAX 7000 CPLD, 256 Macrocells, 84 I/O, TQFP-100 | Altera
The Altera (Intel) EPM7256AETC100-5C is a high-density member of the MAX 7000A family of Complex Programmable Logic Devices (CPLDs), delivering 256 macrocells and 84 user I/O in a 100-pin TQFP package. It is fabricated on a 0.3 µm EEPROM-based CMOS process and provides in-system programmability (ISP) through a standard 4-pin JTAG interface (IEEE Std. 1149.1), with pin-to-pin propagation delays of 5 ns and a 16-bit counter frequency of up to 200 MHz. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PLA-like macrocell arrays into a single chip with a global interconnect fabric. In the broader taxonomy, a CPLD sits between small PAL/GAL devices and large SRAM-based FPGAs, offering deterministic 5-10 ns pin-to-pin delays, instant-on behavior from internal flash/EEPROM, and simplified I/O modeling - making it ideal for glue logic, address decoding, bus interface bridging, and power-up state machines where predictable timing matters more than gate density. Key features include 256 macrocells organized in 16 Logic Array Blocks (LABs), 6 dedicated inputs per LAB for fast register feedback, programmable power-saving modes that reduce I/O current up to 50%, and a MultiVolt core that supports 3.3 V operation with mixed 5.0 V/3.3 V/2.5 V I/O. Programmable interconnect supports both AND and OR array synthesis, enabling efficient implementation of wide combinatorial and registered logic. Each macrocell includes a programmable register that can be configured as D, T, JK, or SR flip-flop with independent clock, clock-enable, clear, and preset controls. The MAX 7000A architecture uses an enhanced EEPROM-based logic element that achieves 100% stuck-fault testability through the JTAG boundary-scan chain. With 6,400 usable gates (typical) and an I/O count supporting bus widths from 8 to 40 bits, the device is well suited to high-performance peripheral bridging applications. The -5 speed grade places it in the mid-band of the MAX 7000A family, balancing speed against power consumption. Typical applications include bus-interface bridging (PCI-to-ISA, microcontroller-to-DSP), peripheral glue logic in networking and telecom line cards, address decoding and arbitration in microprocessor systems, and high-speed state-machine control in industrial automation. The wide I/O count and fast 5 ns delay also suit LED display drivers and instrumentation front-ends. When designing with the EPM7256AETC100-5C, note that ISP via JTAG requires a 10 kΩ pull-up on the JTAG TCK pin and proper TDO/TMS/TDI routing. The MultiVolt interface enables direct connection between 5 V and 3.3 V devices without external level shifters, simplifying mixed-voltage PCB designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. All data is cross-referenced against DigiKey, Mouser, Octopart, and the official Altera MAX 7000A datasheet family. Specifications are sourced from manufacturer documentation; engineers should verify timing parameters against their specific speed-grade datasheet before final design sign-off.
EPM7256AETC100-5N - 256-Macro MAX 7000A CPLD, 5ns TQFP-100
The Intel (formerly Altera) EPM7256AETC100-5N is a high-performance, EEPROM-based CPLD from the MAX 7000A family, delivering 256 macro cells, 84 user I/Os, and a 5.0 ns pin-to-pin delay in a 100-pin TQFP (1.0 mm pitch) commercial-grade package. It is fabricated on advanced CMOS technology, operates from a single 3.3 V supply, and is rated for 600 to 10,000 usable gates with counter speeds up to 227.3 MHz. The -5 speed grade places it among the fastest pin-to-pin timing options in the MAX 7000A series for glue-logic, bus decoding, and state-machine consolidation. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, instantly-on programmable logic IC that combines the deterministic timing of PAL/GAL architecture with higher macro-cell density and on-chip user flash. CPLDs sit above simple PLDs and below FPGAs in the programmable-logic hierarchy (PLD -> CPLD -> FPGA), and are commonly used as interface bridges, bus controllers, address decoders, and power-up sequencers because they boot in microseconds from internal EEPROM. Key features include in-system programmability (ISP) through the IEEE 1149.1 JTAG port, multiVolt I/O supporting 2.5 V, 3.3 V, and 5.0 V mixed-voltage interfaces, an open-drain output option, programmable security bit for design protection, and a 100-pin TQFP that supports commercial (0C to 70C) ambient operation. The MAX 7000A architecture provides 16 macro cells per logic array block (LAB) with a programmable interconnect array (PIA) that guarantees fixed, predictable propagation delays regardless of routing density. Architecturally, the device uses a classic EEPROM-based logic-block fabric with per-macro-cell flip-flops, product-term expansion, and a global interconnect that delivers the trademark deterministic timing of the MAX 7000 family. The 3.3 V core combined with multiVolt I/O banks makes it ideal for bridging legacy 5 V peripherals to modern 3.3 V processors without external level shifters. Typical applications include PCI/ISA bus decoding, address/data demultiplexing, asynchronous-to-synchronous clock-domain bridging, glue logic for microcontroller/microprocessor systems, and power-sequencer circuits for multi-rail boards. Designers choose this part when deterministic timing, instant-on non-volatile configuration, and a mature Quartus II design flow are required. When designing with the EPM7256AETC100-5N, allocate at least one global clock pin per high-speed logic block, place 0.1 uF decoupling capacitors within 5 mm of every supply pin, and use the JTAG chain carefully when ISP is enabled. The 100-pin TQFP has a 0.5 mm lead pitch that supports hand-soldering with practice but is best assembled by reflow. This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the same MAX 7000A family, and practical design notes not found in the manufacturer datasheet, helping engineers select the correct speed grade and package option faster.
EPM7256AETC100-7 - 256-Macrocell MAX 7000A CPLD, 7.5ns TQFP-100 | Intel
The Intel EPM7256AETC100-7 is a 3.3-V, EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000A family, providing 256 macrocells, 5,000 usable gates, and 84 user I/Os in a 100-pin TQFP package with a 7.5 ns pin-to-pin logic delay. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macrocell arrays on a single chip with predictable, deterministic timing. CPLDs sit in the broader taxonomy of programmable logic devices (PLD -> CPLD/FPGA -> logic IC -> integrated circuit), filling the niche between simple gate arrays and high-density FPGAs. They are favored for glue logic, bus interfacing, state-machine control, and power-up instant-on applications where deterministic timing and in-system programmability are required. The EPM7256AETC100-7 features 256 macrocells organized in logic array blocks (LABs), with each macrocell containing a programmable AND/OR array and a configurable flip-flop. The device supports in-system programmability (ISP) via JTAG (IEEE 1149.1), eliminating the need for a separate programmer. Its 3.3 V core supply with 5 V tolerant I/O on selected pins enables easy interfacing with mixed-voltage systems, while the 7.5 ns tPD supports high-speed control applications at frequencies up to 126.6 MHz. Typical applications include bus interface bridging (PCI, ISA, VME), peripheral glue logic, address decoding and chip-select generation, state-machine controllers, and power-up sequencing logic in microcontroller and ASIC systems. The MAX 7000A architecture also includes programmable interconnect switches, user-defined macrocell flip-flop clocks, and a global clear pin for synchronous design initialization. When designing with this part, note that the device has been classified as obsolete/end-of-life by Intel - consider the EPM7256AETC100-7N or EPM7256AETI100-7N variants for new designs. Verify the tPD speed grade (7 = 7.5 ns) and temperature grade (C = commercial 0 to 70C) match your application requirements before substituting. This page synthesizes distributor pricing, pin-compatible MAX 7000A drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
EPM7256AETC100-7N - 256-Macrocell MAX 7000A CPLD, 3.3V, 100TQFP | Intel
The Intel (formerly Altera) EPM7256AETC100-7N is a high-density, in-system programmable Complex Programmable Logic Device (CPLD) from the MAX 7000A family, integrating 256 macro cells across 16 logic array blocks and offering 84 user I/O pins in a 100-pin Thin Quad Flat Pack (TQFP) package. It is built on a 3.3V CMOS process, supports an internal supply range of 3.0V to 3.6V, and achieves a pin-to-pin propagation delay (tPD) of 7.5 ns with a maximum operating frequency of 126.6 MHz, making it well-suited for high-speed glue-logic, interface bridging, and bus-decoding tasks. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-style macrocell blocks with a centralized programmable interconnect matrix. In the system hierarchy it sits between discrete 74-series glue logic and larger FPGAs, providing deterministic, single-clock-cycle latency and instant-on behavior with no external boot memory required. The MAX 7000A family was one of Altera's most widely adopted EEPROM-based CPLD lines, valued for its In-System Programmability (ISP) via JTAG and its predictable timing closure for control-plane logic. Key features of the EPM7256AETC100-7N include 5,000 usable gates, 256 macro cells, 84 I/Os, in-system programmability via IEEE 1149.1 JTAG, and a commercial operating temperature range of 0C to 70C. The device also supports multiple I/O standards (3.3V LVTTL/LVCMOS), open-drain output options, and user-selectable slow-rate slew control for signal-integrity tuning. Programmable Security Bits protect the user's design against unauthorized readback. Architecturally, the MAX 7000A device ties 16 Logic Array Blocks (LABs) together via a global Programmable Interconnect Array (PIA). Each LAB contains 16 macro cells, each built around a product-term AND/OR array feeding a programmable flip-flop, supporting D, T, JK, or SR flip-flop operation. The 7.5 ns tPD figure refers to the combinational path through the PIA plus one macrocell, and the 126.6 MHz fCNT figure refers to the maximum flip-flop toggle frequency. Typical applications include bus-interface bridging between microprocessors and peripherals, address decoding and chip-select generation for memory-mapped systems, power-up sequencing logic, and replacement of multiple discrete 74LS/74HC glue-logic devices. The 84 I/O count comfortably supports 32-bit data buses plus dedicated control signals. When designing with this part, ensure that the JTAG chain is properly terminated with the TCK pull-up required by IEEE 1149.1 and that the VCCINT and VCCIO rails are decoupled with a 0.1 uF ceramic capacitor placed within 5 mm of each supply pin. For ISP via JTAG, follow Altera's BSDL file and ByteBlaster/USB-Blaster programming flow.
EPM7256AETC144-10 - MAX 7000A 256-Macrocell CPLD, 10ns, TQFP-144 | Intel
The Intel (formerly Altera) EPM7256AETC144-10 is a high-density, non-volatile, electrically-erasable Complex Programmable Logic Device (CPLD) from the MAX 7000A family, delivering 256 macrocells, 36 user I/Os, and a 10 ns pin-to-pin logic delay in a 144-pin TQFP package. The part operates from a 3.3 V core supply, offers 5 K usable gates of logic, and provides in-system programmability via the IEEE Std. 1149.1 JTAG interface plus a separate Fast Passive Serial (FPS) configuration path for production programming. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, flash- or EPROM-backed programmable logic device that combines multiple PLD-like Logic Array Blocks (LABs) on a single die with a global interconnect matrix. Architecturally a CPLD sits between simple SPLDs/GALs and large SRAM-based FPGAs: it provides deterministic, fast input-to-output propagation (typically 3-15 ns), zero external configuration memory, and is best suited to glue-logic, bus interfacing, address decoding, and state-machine replacement rather than DSP or high-register-count datapath designs. Within the wider taxonomy, CPLDs belong to the broader category of programmable logic devices (PLDs), which in turn sit under digital logic integrated circuits and ultimately under semiconductors. The EPM7256AETC144-10 occupies the high-density end of the MAX 7000A range and is widely used as a system-level integration device. Key features that distinguish this part include 256 macrocells (equivalent to roughly 5,000 usable gates), 16 dedicated input pins, 36 bidirectional I/O pins, an f_MAX of approximately 95.2 MHz, and a 10 ns tPD that makes it the -10 speed-grade variant of the EPM7256AE family. The 'A' suffix indicates the 3.3 V core variant of MAX 7000A, the 'TC144' indicates the commercial-temperature TQFP-144 package, and the '-10' speed grade denotes the 10 ns propagation delay bin. Typical applications include bus-interface bridging, address decoding for legacy microprocessors/microcontrollers, power-supply sequencing logic, I/O expansion, and replacement of multiple discrete TTL/CMOS glue-logic packages in industrial controllers, telecom line cards, and test equipment. Design considerations for engineers using this part include proper JTAG chain ordering when stacked with other boundary-scan devices, supply decoupling for the 3.3 V VCCINT and the I/O bank VCCIO rails, and unused-pin tie-off discipline per the MAX 7000A handbook. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not collected in any single datasheet source.
EPM7256AETC144-10N - MAX 7000A 256-Macro CPLD, 10ns TQFP-144 | Intel
The Intel (formerly Altera) EPM7256AETC144-10N is a high-density 3.3V CMOS Complex Programmable Logic Device (CPLD) from the MAX 7000A family, delivering 5,000 usable gates, 256 macro cells, and a 10 ns pin-to-pin propagation delay in a 144-pin TQFP package. The device integrates non-volatile EEPROM configuration memory with in-system programmability (ISP) via JTAG, eliminating the need for external boot PROMs, and offers user I/O count of up to 120 pins per package for interface-heavy glue-logic roles. A Complex Programmable Logic Device (CPLD) is a non-volatile, instantly-on programmable logic IC that combines multiple PAL-like logic blocks on a single die, wired together by a programmable interconnect matrix. In the system hierarchy it sits between simple gate arrays and full FPGAs: it provides deterministic timing, sub-15 ns propagation delays, and zero-configuration power-up, making it ideal for bus decoding, address mapping, state-machine control, and I/O expansion rather than DSP/algorithmic workloads. Key features of this part include 256 macro cells distributed across 16 logic array blocks, 4 input lines per macro cell, a global 3.3V core supply with 5V-tolerant I/O, pin-to-pin tPD of 10 ns, and a maximum internal operating frequency of 95.2 MHz. The device is pin-compatible with the 5.0V MAX 7000S family, allowing board-level migration. Extended industrial temperature range support and built-in IEEE 1149.1 JTAG boundary-scan test complete the feature set. Architecturally, the MAX 7000A implements a classic AND-OR (product-term) logic fabric backed by EEPROM configuration cells, ensuring instant-on behaviour with no bitstream load time. The 3.3V core reduces power consumption versus legacy 5V PLDs, and the ISP_Done bit guarantees complete programming verification on every flash cycle. Typical applications include telecommunications line cards, peripheral bus bridging (PCI/ISA/address decoding), industrial control boards, and legacy 5V-system glue-logic replacement. When designing with the EPM7256AETC144-10N, designers must ensure the JTAG chain is correctly terminated with TCK pull-down and TMS pull-up resistors per the datasheet, and must respect the maximum I/O toggle rate to avoid ground-bounce on heavily-loaded outputs. This page synthesizes distributor pricing, drop-in speed-grade alternatives, application companions, and practical design notes not found in the manufacturer datasheet alone.
EPM7256AETC144-5N - 256-Macrocell MAX 7000A CPLD | Altera | TQFP-144
The Altera (Intel) EPM7256AETC144-5N is a high-density, EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000A family, providing 5,000 usable gates and 256 macro cells in a 144-pin TQFP (TQ) package. It is fabricated on advanced CMOS technology, operates from a 3.3 V supply, and delivers pin-to-pin propagation delays as fast as 4.5 ns with internal counter frequencies up to 227.3 MHz (172.4 MHz per published specifications). A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-style macrocell arrays with a central interconnect fabric. CPLDs sit between small SPLDs and large FPGAs in the programmable logic hierarchy, offering deterministic timing, instant-on operation from on-chip EEPROM, and higher I/O count than SPLDs without the configuration overhead of SRAM-based FPGAs. They are widely used for I/O expansion, bus interface glue logic, address decoding, and state-machine controllers in cost-sensitive designs. Key features of the EPM7256AETC144-5N include 36 user I/Os (per the Mouser listing) or 84 user I/Os (per DigChip), 144 pins total, in-system programmability (ISP) via JTAG, 3.3 V core operation with 5 V-tolerant I/O on most members of the family, and four pin-to-pin delay grades inside the MAX 7000A series. The '5N' suffix denotes the -5 speed grade and lead-free / Pb-free packaging. The device supports multi-voltage operation on its I/O banks through dedicated VCCINT and VCCIO pins, allowing mixed-voltage interfacing between 3.3 V, 2.5 V, and 1.8 V rails without external level shifters. Typical applications include bus-interface bridging, peripheral control in embedded systems, address decoding and chip-select generation in microcontroller designs, high-speed state-machine controllers, and industrial control systems. The deterministic 4.5 ns tPD simplifies timing closure where ASIC-like predictability is required. When designing with the EPM7256AETC144-5N, observe the recommended decoupling scheme (one 0.1 microfarad ceramic capacitor per VCC pin) and provide a clean JTAG chain. The -5N suffix is the slowest speed grade in the family; faster -7 and -10 grades are also available in the same TQFP-144 footprint for timing-critical paths.
EPM7256AETC144-7N - MAX 7000A CPLD, 256 Macrocells, 7.5ns | Intel
The Intel EPM7256AETC144-7N is a high-density, high-performance Complex Programmable Logic Device (CPLD) from the MAX 7000A family, delivering 256 macrocells, 5,000 usable gates, and 120 user I/O pins in a 144-pin TQFP (20x20 mm) surface-mount package. It operates from a single 3.3 V supply (3.0 V to 3.6 V), supports in-system programmability (ISP) via IEEE 1149.1 JTAG, and offers a pin-to-pin propagation delay of 7.5 ns with a maximum counter frequency of 126.6 MHz. A CPLD (Complex Programmable Logic Device) is a non-volatile, flash- or EEPROM-based programmable logic device that sits between simple SPLDs/PLDs and FPGAs in the programmable-logic hierarchy. It contains multiple PAL-like logic array blocks (LABs) interconnected by a central programmable switch matrix. CPLDs are deterministic, boot in microseconds without external configuration memory, and are widely used for glue logic, bus interfacing, address decoding, state-machine control, and I/O expansion where predictable timing and instant-on behavior matter more than the very high logic density of an FPGA. Key features include 16 logic array blocks (LABs), 256 macrocells distributed as 16 macrocells per LAB, JTAG-based in-system programmability, multi-voltage I/O support via JTAG-driven I/O standards, open-drain output option, programmable slew rate, and a commercial operating temperature range of 0 °C to 70 °C. The MAX 7000A architecture uses EEPROM configuration cells, so the device retains its logic when power is removed and requires no external boot PROM. The device is fabricated on an advanced CMOS EEPROM process. Each macrocell contains a programmable AND/OR array, a flip-flop with selectable Clear/Preset/Clock, and an I/O control block with selectable registered or combinatorial output. The 7.5 ns pin-to-pin delay (commercial grade) and 4.5 ns fast-option parts (MAX 7000AE) suit applications where deterministic, nanosecond-range timing replaces discrete 74-series glue logic and reduces board area and BOM count. Typical applications include I/O expansion and glue logic for microcontrollers/MPUs, address decoding for memory-mapped buses, bus protocol bridging, peripheral control in industrial and telecom equipment, and state-machine-driven control logic in printers, routers, and test gear. The commercial 0 °C to 70 °C window suits indoor equipment; industrial designs requiring −40 °C to +85 °C should select the EPM7256AETI144-7N variant instead. When designing with the EPM7256AETC144-7N, observe the 3.0 V to 3.6 V supply window carefully and reserve the four JTAG pins (TDI, TDO, TMS, TCK) plus a dedicated TRST/DEV_OE option. Inputs above 3.6 V will stress the EEPROM I/O cells; for 5 V-tolerant inputs consider the MAX 7000AE family or add external level shifters.
EPM7256AETI100-7N - 256-MacroCell MAX 7000A CPLD, 100TQFP | Intel
The Intel (formerly Altera) EPM7256AETI100-7N is a 256-macrocell, 5,000-gate CMOS Complex Programmable Logic Device (CPLD) from the MAX 7000A family, housed in a 100-pin TQFP (Thin Quad Flat Pack) package with industrial-grade temperature rating. It operates from a 3.3 V core supply and provides a maximum toggle frequency of 126.6 MHz, with up to 84 user I/O pins for glue-logic, interface bridging, and bus-management tasks. The device uses EEPROM-based non-volatile configuration cells so the design loads instantly at power-up without an external boot PROM. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that sits between simple PAL/GAL arrays and larger FPGAs. Architecturally, a CPLD partitions logic into multiple macrocell-PLA blocks connected by a central interconnect matrix, giving predictable, deterministic timing well suited to control-plane logic, address decoding, and state-machine implementation. In the system hierarchy it belongs to the programmable-logic family, alongside SPLDs, FPGAs, and PALs, and is commonly classified as a power-management and glue-logic companion to microcontrollers, microprocessors, and bus interfaces. Key features of the EPM7256AETI100-7N include 256 macrocells, 5 K usable gates, 84 user I/O, in-system programmability via JTAG, and IEEE Std 1149.1 boundary-scan test support. The MAX 7000A architecture provides pin-locking for incremental design changes and individual output enable control per macrocell, allowing wide design reuse across board revisions. The 100-pin TQFP (1.0 mm pitch, 14 mm x 14 mm body) package is a JEDEC-standard surface-mount outline well suited to industrial assembly. Typical applications include address decoding and bus-interface bridging, state-machine controllers, peripheral glue logic in embedded systems, and reconfigurable I/O expansion for microcontrollers and DSPs. Designers also use MAX 7000A CPLDs to replace discrete 74-series logic, reducing board area and BOM cost. When using this device, ensure that the JTAG chain is properly terminated and that input signals respect the 3.3 V VCCIO supply; a 0.1 uF decoupling capacitor should be placed adjacent to each supply pin. This page synthesizes distributor pricing, drop-in alternatives within the MAX 7000A family, and practical design notes not found in the manufacturer datasheet alone.
EPM7256AETI144-7 - 256-Macro MAX 7000A CPLD, TQFP-144 | Intel
The Intel (Altera) EPM7256AETI144-7 is a 256-macrocell member of the MAX 7000A family of high-density, in-system programmable CPLDs, housed in a 144-pin TQFP (plastic Thin Quad Flat Pack) package with industrial temperature grade (-40C to +85C) and 7 ns pin-to-pin logic delay. The device integrates 5,000 usable gates, 256 macrocells, 36 user I/Os and an in-system programmability controller based on 3.3 V core operation. A CPLD (Complex Programmable Logic Device) is a non-volatile, electrically erasable programmable logic device that combines multiple PAL/GAL-style macrocell arrays on a single chip with a global interconnect fabric. In the broader component hierarchy, a CPLD sits beside the FPGA (Field-Programmable Gate Array) as a non-volatile, instant-on alternative that is well suited to glue-logic, bus-interface, state-machine and power-up control tasks where deterministic timing and zero-config boot are required. Key features include 7 ns tPD combinational delay, 126.6 MHz maximum operating frequency, IEEE 1149.1 (JTAG) boundary-scan support, MultiVolt I/O allowing 2.5 V/3.3 V/5 V interfacing, and dedicated input clocks plus a global OE (output enable). The device is fabricated on a 5 V-tolerant, EEPROM-based architecture that retains its configuration without external memory, eliminating the boot PROM typically required by SRAM-based FPGAs. Technical depth: each macrocell contains a programmable AND/OR array with a product-term allocator feeding a configurable flip-flop; the 36 I/Os are organized as 4 I/O banks driven by fast input and output registers. With 16 macrocells per Logic Array Block (LAB) and a clear predictable timing model, Quartus / MAX+PLUS II can place-and-route designs with deterministic worst-case fMAX - a property that makes MAX 7000A attractive for protocol bridges and industrial control. Typical applications include industrial control, bus-interface glue logic, motor control state machines, and legacy peripheral bridging on 3.3 V mixed-voltage boards. The instant-on non-volatile configuration is also well suited to safety-critical and brown-out-tolerant systems. Designers should note that -7 (7 ns) speed grade implies tighter tCO budgets, and JTAG programming reduces fixture complexity in production. This page synthesizes distributor pricing, MAX 7000A drop-in alternatives, and practical design notes not found in a single Altera datasheet.