FPGA & CPLD
Products (6352)
EPM3512AQC208-2 - MAX 3000A CPLD, 512 Macrocells, 172 I/O | Altera
The Intel (formerly Altera) EPM3512AQC208-2 is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs) that delivers 512 macrocells and 172 user I/O pins in a 208-pin PQFP package. It is rated for a -2 speed grade, with a typical propagation delay of approximately 2 ns on the fastest pin-to-pin paths, and operates over a 3.3 V core supply with 2.5 V / 3.3 V output drive and 5.0 V tolerant inputs for mixed-voltage system design. A CPLD (Complex Programmable Logic Device) is a non-volatile, instantaneously-on programmable logic device that sits between discrete logic gates and FPGAs in the programmable logic hierarchy. Architecturally, a CPLD consists of multiple PAL-like Logic Array Blocks (LABs) interconnected by a central programmable switch matrix; this structure gives CPLDs predictable timing, deterministic I/O behavior, and the ability to retain configuration without an external boot PROM - advantages that make CPLDs ideal for glue-logic, bus-interface, power-sequencing, and control-plane applications. Key features of the EPM3512AQC208-2 include in-system programmability via IEEE 1149.1 JTAG, multiVolt I/O supporting 2.5 V / 3.3 V output drive with 5.0 V input tolerance, four user I/O banks for flexible voltage domain mixing, programmable security bit for design protection, and a wide operating temperature range suitable for industrial environments. The device is built on a 0.30 µm EEPROM process, which is non-volatile and provides 100 program/erase cycles typical endurance. Architecturally, the EPM3512AQC208-2 organizes its 512 macrocells into 16 Logic Array Blocks (LABs), each containing 32 macrocells, with a global interconnect that links all LABs. Each macrocell combines a programmable AND/OR array with a configurable flip-flop supporting D, T, JK, or SR operation, giving designers a familiar PAL/PLA feel with the addition of sequential capability. The I/O structure supports slew-rate control, bus-hold circuitry, and programmable pull-up resistors, all accessible through the Altera MAX+PLUS II or Quartus development tools. Typical applications include bus-interface bridging (e.g., between a 5 V microcontroller bus and a 3.3 V peripheral bus), power-supply sequencing and supervisory logic, glue-logic replacement for legacy TTL/CMOS designs, FPGA configuration control, and industrial control I/O expansion. The wide I/O count of 172 makes this part particularly attractive for applications requiring a large number of interface signals without resorting to a more expensive FPGA. When designing with this part, pay careful attention to power-up behavior: although the device is non-volatile, the I/O pins default to a tri-stated condition until configuration completes, which can cause bus contention in systems where multiple devices drive shared lines. Designers should also confirm Quartus II device support, because MAX 3000A legacy support is increasingly maintained only in Quartus II Service Packs rather than the latest Quartus Prime releases. This page synthesizes distributor pricing, same-package speed-grade alternatives, and practical design notes not found on a single distributor or manufacturer product page.
EPM3512AQC208-3 - MAX 3000A CPLD, 512 Macrocells, 172 I/O, PQFP-208 | Altera
The Altera EPM3512AQC208-3 is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), delivering 512 macrocells, 172 user I/O pins, and a -3 speed grade in a 208-pin Plastic Quad Flat Pack (PQFP) package. Built on a 5.0 V tolerant CMOS EEPROM process with in-system programmability compliant to IEEE Std. 1532, the EPM3512AQC208-3 provides non-volatile configuration retention, 10,000 program/erase cycles minimum, and a maximum pin-to-pin propagation delay on the order of a few nanoseconds. The device is intended for glue-logic, bus-interface, and state-machine consolidation roles where deterministic, instant-on behavior is required. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays with a global interconnect fabric, sitting in the hierarchy between simple SPLDs (like GAL/PAL) and FPGAs. In a typical system, a CPLD handles interface bridging, address decoding, power-up sequencing, and peripheral glue logic before or alongside a larger processor or FPGA. The MAX 3000A family specifically targets 3.3 V core / 5 V tolerant I/O designs that require ISP (in-system programmability) and 100% pin retention across JTAG-driven firmware updates. Key features of the EPM3512AQC208-3 include 512 macrocells organized across 16 Logic Array Blocks (LABs) of 32 macrocells each, a maximum of 172 usable I/O pins on the PQFP-208 footprint, multiVolt I/O supporting 2.5 V, 3.3 V, and 5.0 V mixed-voltage interfaces, and JTAG-compliant IEEE Std. 1149.1 boundary-scan test. The -3 speed grade positions it for cost-sensitive, mid-performance logic consolidation rather than the fastest timing closure. Architecturally, the EPM3512AQC208-3 uses the MAX 3000A interconnect fabric, which provides fast, predictable paths through a uniform switch matrix and per-macrocell product-term logic with configurable D/T/JK/SR flip-flops. Each macrocell supports up to 32 product terms expandable through the shareable expander chain. Programming is performed in-system via JTAG using the Altera Quartus II or MAX+PLUS II toolchains, with the JTAG interface also serving as the boundary-scan test access port. Typical applications include address decoding and chip-select generation for microcontroller or microprocessor subsystems, asynchronous bus interface bridging between 5 V and 3.3 V logic domains, glue-logic consolidation in telecom backplane equipment, industrial control PLCs, and legacy peripheral replacement on boards originally designed around discrete 74-series logic. When designing with the EPM3512AQC208-3, allocate I/O banks carefully to avoid mixing 5 V tolerant inputs with 3.3 V outputs without proper current-limiting or level translation, and observe the PQFP-208 thermal envelope of typically 1.0 to 1.5 W maximum dissipation. Decoupling must use 0.1 uF ceramic capacitors placed within 5 mm of each VCCIO/VCCINT pin pair. This page synthesizes distributor stock data, drop-in same-package alternatives from the same Altera MAX 3000A family, and practical design notes not typically consolidated in the original datasheet. Engineering trade-offs, automotive-grade options, and the -3 versus -7 speed-grade positioning are documented for procurement and design engineering use.
EPM3512AQC208-3N - MAX 3000A CPLD, 512 Macrocells, 172 I/O | Intel
The Intel (formerly Altera) EPM3512AQC208-3N is a 512-macrocell CPLD from the MAX 3000A programmable logic device family, housed in a 208-pin PQFP package, with 172 user I/O pins and a 3 ns pin-to-pin logic delay. It operates from a 3.3 V core supply and is built on a 5.0 V tolerant I/O structure with in-system programmability compliant to IEEE Std. 1532. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, electrically reprogrammable digital logic IC that sits between discrete logic gates and FPGAs in complexity. Within the programmable logic hierarchy, CPLDs sit below FPGAs and above simple PLDs (SPLDs/PALs); they offer predictable timing, instant-on operation from on-chip EEPROM, and are well-suited to glue logic, bus decoding, and state-machine replacement in cost-sensitive industrial designs. Key features include 512 macrocells distributed across 16 Logic Array Blocks (LABs), 32 macrocells per LAB, 12 ns maximum global clock setup time, and JTAG-based IEEE 1149.1 boundary-scan testing. The 3 ns speed grade is the slowest (most relaxed timing) of the MAX 3000A family, trading off propagation delay for lower dynamic power and lower cost. The device uses a non-volatile EEPROM cell array to store the configuration, giving true instant-on behavior without external boot memory. The MultiVolt I/O interface supports 5.0 V, 3.3 V, 2.5 V, and 1.8 V logic levels through separate VCCIO banks, allowing direct interfacing to legacy 5 V peripherals and modern low-voltage ASICs without level shifters. The MAX 3000A architecture delivers predictable, deterministic timing that is independent of routing density - a critical advantage over SRAM-based FPGAs for control-plane logic. Typical applications include industrial glue logic and bus decoding, motor control and PLC I/O expansion, telecommunications line-card address decoding, and legacy peripheral replacement in 5 V mixed-voltage systems. The wide 5 V tolerance and instant-on behavior also make it suitable for safety-critical systems where deterministic boot latency is required. When designing with this part, remember that the 3 ns speed grade is the slowest tier of the MAX 3000A family; if your timing budget is tight, consider -7 (7 ns) or -10 (10 ns) speed grades. Decoupling must include at least one 0.1 uF ceramic capacitor per VCC/VCCIO pin pair placed within 5 mm of the package, plus a single 10 uF bulk capacitor per supply rail. This page synthesizes distributor pricing, same-brand speed-grade variants, and practical design notes not found in the manufacturer datasheet - including a quantitative comparison of macrocell counts and timing across the MAX 3000A family.
EPM3512AQC208-7 - MAX 3000A CPLD, 512 Macrocells, 7.5ns, 208-PQFP | Intel
The Intel (formerly Altera) EPM3512AQC208-7 is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs) featuring 512 macrocells, 10,000 usable gates, and a 7.5 ns pin-to-pin propagation delay. Housed in a 208-pin Plastic Quad Flat Pack (PQFP) package, it provides 172 user I/O pins and operates at a 3.3 V core supply with MultiVolt I/O supporting 5.0 V, 3.3 V, and 2.5 V logic levels for mixed-voltage system interfacing. Counter frequencies reach up to 116.3 MHz, enabling fast state-machine and datapath implementation. A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic device that combines multiple PAL-like logic blocks on a single chip, providing predictable timing, instant-on behavior, and high I/O count for glue-logic, bus-interface, and state-controller applications. CPLDs sit alongside FPGAs in the programmable logic hierarchy: FPGAs offer higher logic density and register count, while CPLDs excel at deterministic timing, lower power, and instant boot from on-chip EEPROM. The MAX 3000A family targets cost-sensitive industrial, communication, and consumer designs that need fast, deterministic logic integration. The EPM3512AQC208-7 integrates in-system programmability (ISP) compliant with the IEEE Std. 1532 specification, allowing concurrent ISP across multiple PLD vendors and reconfiguration without removing the device from the board. The MultiVolt I/O pins interface directly with 5.0 V, 3.3 V, and 2.5 V logic, eliminating external level shifters when bridging legacy and modern buses. Built on a 0.30 um CMOS EEPROM process with a MAX architecture, the device delivers high logic density with predictable interconnect delays that are independent of routing patterns, simplifying static-timing closure. Typical applications include bus-interface bridging, address decoding and glue logic for microprocessor systems, state-machine controllers, I/O expansion, and power-up sequencing for FPGAs or processors requiring controlled reset behavior. Designers often pair the EPM3512AQC208-7 with an external configuration PROM or use it standalone for deterministic control logic. Its instant-on EEPROM architecture boots the configured logic within microseconds, which is critical for safety-critical and deterministic system bring-up. When designing with the EPM3512AQC208-7, observe the 208-PQFP thermal envelope and provide a sufficient ground/power plane on inner PCB layers to keep junction temperature below 125 C. Decouple each VCCINT and VCCIO pin with a 0.1 uF ceramic capacitor placed within 100 mils of the pin, and use the Quartus II or MAX+PLUS II software toolchain for fitting, simulation, and JTAG-based ISP.
EPM3512AQC208-7/I208-10 - MAX 3000A 512-Macrocell CPLD | Intel
The Intel EPM3512AQC208-7/I208-10 is a high-density, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, offering 512 macrocells, 10,000 usable gates, and 208 user I/Os in a 208-pin PQFP package. It operates at 3.3 V core with 116.3 MHz maximum internal frequency and is available in -7 (7.5 ns tPD) and -10 (10 ns tPD) speed grades with industrial temperature range. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-style macrocell arrays with a central programmable interconnect matrix. In the broader system hierarchy, a CPLD sits above discrete logic (74-series gates) and below FPGAs in complexity: it provides deterministic pin-to-pin propagation delay (typically 5-15 ns), instant-on configuration from on-chip EEPROM, and excellent glue-logic integration for bus decoding, state machines, and I/O expansion. The MAX 3000A family was Altera's mainstream 3.3 V CPLD line, later acquired and maintained by Intel as a mature legacy product. Key features of the EPM3512AQC208-7 include 208 user I/O pins (the highest I/O count in the MAX 3000A family when packaged in PQFP-208), in-system programmability (ISP) via JTAG, multiVolt I/O supporting 1.8 V/2.5 V/3.3 V/5 V mixed-voltage interfaces, and a propagation delay of 7.5 ns with a 116.3 MHz internal fMAX. The -10 speed grade offers 10 ns tPD for cost-sensitive designs that do not require the fastest timing. Both grades share the same pinout and die, making them fully interchangeable on the PCB. Architecturally, the EPM3512A uses a classic MAX-style Logic Array Block (LAB) structure with 16 macrocells per LAB, a Programmable Interconnect Array (PIA), and per-pin flip-flop/latch/three-state control. The on-chip EEPROM configuration memory provides instant-on behavior with no external boot device, which is critical for power-sequenced or safety-sensitive designs. The device also offers 5 V tolerant I/O on input pins (with appropriate current limiting), JTAG boundary-scan (IEEE 1149.1), and open-drain output options. Typical applications include bus interface bridging (PCI, ISA, VME), peripheral I/O expansion for microcontrollers and DSPs, glue-logic replacement in telecom and industrial control, state-machine controllers, and legacy system upgrades. The 208 I/O count makes this particular variant suited for designs that need to consolidate many discrete 74LS/74HC logic chips onto a single programmable device. When designing with this part, always enable JTAG ISP access on the board, provide a clean 3.3 V core supply with adequate bulk decoupling, and avoid leaving unused I/Os floating - tie them to a defined logic level through the Quartus software. The MAX 3000A is mature and well-supported by legacy Altera Quartus II versions (13.0 and earlier). New designs should consider MAX II or MAX V as modern replacements, but the EPM3512A remains in service for long-lifecycle programs. This page synthesizes distributor pricing, drop-in alternative listings across the MAX 3000A family, and practical PCB design notes not found in the bare manufacturer datasheet.
EPM3512AQC208-7N - 512-Macro MAX 3000A CPLD, 208-PQFP | Altera
The Altera (Intel) EPM3512AQC208-7N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, integrating 512 macrocells and approximately 10,000 usable gates into a 208-pin Plastic Quad Flat Pack (PQFP / FQFP-208) with 172 user I/Os. It operates from a single 3.3 V supply (3.0 V to 3.6 V) and delivers a 7.5 ns pin-to-pin propagation delay with a 116.3 MHz maximum operating frequency, providing deterministic glue-logic performance for I/O expansion, bus interfacing, and state-machine consolidation in cost-sensitive designs. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that combines multiple PLA-style macrocell blocks with a central interconnect matrix. Compared with simple SPLDs and with SRAM-based FPGAs, a CPLD offers instant-on non-volatile configuration, predictable timing (fixed propagation delay independent of routing), high-drive I/O, and lower cost at smaller logic capacities. The MAX 3000A family is the I/O-rich, 3.3 V, in-system programmable (ISP) tier of the classic Altera MAX architecture, sitting below MAX 7000/MAX V in density and above 22V10/legacy PALs in capacity. Key features include 32 Logic Array Blocks (LABs) each containing 16 macrocells, 5 ns global clock network, IEEE 1149.1 JTAG boundary-scan, IEEE 1532-compliant ISP, MultiVolt I/O supporting 1.8 V / 2.5 V / 3.3 V mixed-voltage interfaces, and four user I/O banks with pin-locking for incremental board revisions. The -7 speed grade corresponds to the 7.5 ns tPD / 116.3 MHz fCNT specification. The plastic PQFP-208 package is surface-mount and supports commercial 0 °C to 70 °C ambient operation. The EPM3512AQC208-7N uses a 0.30 µm EEPROM process with a CMOS EEPROM-based configuration cell that retains the bitstream without external memory. The JTAG TAP controller implements IEEE 1149.1 BST plus IEEE 1532 ISP, allowing concurrent multi-vendor programming on a board that mixes PLDs from different vendors. This combination of non-volatile storage and JTAG ISP is the reason MAX 3000A parts remain popular as boot-time glue logic, even when larger FPGAs handle the bulk of system logic. Typical applications include bus-interface and address-decoding glue logic, I/O expansion and level translation, state-machine consolidation on legacy boards, peripheral control in embedded designs, and replacement of discrete 74-series logic. Industrial and commercial designs that need instant-on deterministic logic without external boot memory are the dominant use cases. When designing with this device, observe the VCCIO banking rules (each of the four I/O banks must be configured to a supported voltage standard such as 3.3 V, 2.5 V, or 1.8 V) and reserve JTAG pins (TDI, TMS, TCK, TDO) for in-system programming. Decoupling should follow the Quartus II / MAX+PLUS II device family guidelines with bulk + high-frequency ceramics near each VCC/VCCIO pin group. This page synthesizes distributor pricing, drop-in speed-grade and package alternatives from the EPM3512A family, and practical design notes not found in the manufacturer datasheet alone.
EPM3512AQC208-7N/I20 - 512-Macrocell MAX 3000A CPLD, 208-PQFP | Altera
The Altera EPM3512AQC208-7N/I20 is a high-density, 3.3-V CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, supplied in a 208-pin Plastic Quad Flat Pack (PQFP-208 / FQFP-208) with gull-wing leads. Per the manufacturer datasheet, the device integrates 512 macrocells, 10,000 usable gates, 32 Logic Array Blocks (LABs), and 172 programmable user I/O pins, making it one of the densest members of the legacy MAX 3000A lineup. It features a maximum propagation delay of 7.5 ns and a maximum internal operating frequency of 116.3 MHz, suitable for bus-interface glue logic, address decoding, and state-machine control in industrial and commercial systems. A CPLD (Complex Programmable Logic Device) is a non-volatile, instantly-on programmable logic device that sits between simple PAL/GAL devices and higher-density FPGAs in the programmable logic hierarchy: PAL/GAL -> CPLD -> FPGA -> SoC FPGA. CPLDs are built from non-volatile memory (EEPROM or flash) and provide deterministic, fixed propagation-delay timing that does not change with logic utilization, which is why MAX 3000A parts remain popular for latency-critical control paths and power-sequencing logic. Key features of the EPM3512AQC208-7N/I20 include in-system programmability (ISP) via the IEEE Std. 1149.1 JTAG interface, IEEE Std. 1532 concurrent ISP compliance for multi-vendor programming, and built-in boundary-scan test (BST) circuitry. The device operates from a single 3.3 V supply (3.0 V to 3.6 V) and is offered in the commercial 0 C to 70 C temperature grade. MultiVolt I/O allows interfacing with 1.8 V, 2.5 V, and 3.3 V logic without external level shifters. Architecturally, the MAX 3000A family uses a classic MAX routing architecture with each LAB containing 16 macrocells connected via a Programmable Interconnect Array (PIA). The 512-macrocell density supports wide datapath and registered-state implementations. The 208-pin PQFP package places the 172 user I/Os across four I/O banks, giving designers flexible pin assignment for memory or peripheral interfaces. Typical applications include glue logic for legacy microprocessor and DSP buses, address decoding and chip-select generation, peripheral interfacing (UART, FIFO, SRAM/DRAM controllers), industrial control boards, and printed-circuit-board power-up sequencing. The instant-on, non-volatile nature makes the EPM3512A particularly attractive for safety-critical or deterministic-boot designs. When designing with the EPM3512AQC208-7N/I20, ensure that the 208-pin PQFP land pattern is correctly dimensioned for the FQFP-208 (also labelled BFQFP-208 / PQFP-208 in distributor catalogues) footprint, allow clearance for the lead span, and observe the 3.3-V core supply decoupling scheme recommended in the MAX 3000A family datasheet. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing a one-stop reference for engineers evaluating, sourcing, or replacing the EPM3512AQC208-7N/I20.
EPM3512AQC208-7N/I208-10N - 512-Macrocell MAX 3000A CPLD | Altera
The Altera (Intel) EPM3512AQC208-7N/I208-10N is a 512-macrocell CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, housed in a 208-pin PQFP package and offering approximately 10,000 usable gates with 172 user I/Os. The /I208-10N suffix variant operates with a 10 ns pin-to-pin propagation delay and a 3.3 V core supply (3.0 V to 3.6 V), while the companion -7N speed grade provides 7.5 ns propagation delay at the same supply rail. Both variants share the same MAX 3000A die, package, JTAG pinout, and IEEE 1532 in-system programmability interface. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that sits between simple SPLDs/PLDs and higher-density FPGAs in the programmable logic hierarchy (CPLD -> PLD -> programmable logic -> digital semiconductor). MAX 3000A devices use a classic LAB (Logic Array Block) architecture with EEPROM configuration memory, providing instant-on behavior at power-up without external boot PROM. This makes MAX 3000A ideal for glue logic, bus interfacing, state-machine control, and power-up deterministic logic replacement where FPGAs add unnecessary cost or boot latency. Key features include 32 Logic Array Blocks (LABs) with 16 macrocells each, IEEE 1149.1 JTAG boundary-scan test support, IEEE 1532-compliant ISP, multiVolt I/O supporting 2.5 V and 3.3 V interfacing, and programmable interconnect with predictable timing. The 208-pin PQFP (Plastic Quad Flat Pack) package offers 0.5 mm pitch gull-wing leads suitable for standard SMT assembly lines and is compatible with commercial-grade (0C to 70C) operating environments. The architecture combines a programmable AND/OR array within each macrocell, individually programmable flip-flops, and a global interconnect that delivers fast, deterministic tPD and tCO timing. The on-chip EEPROM cell delivers zero-power standby because configuration is retained without power, and the JTAG/IEEE 1532 interface allows field reprogramming via standard 4-wire JTAG or Altera ByteBlaster cables. The part also includes user I/O pin-locking to preserve board layout when minor logic revisions are made. Typical applications include I/O expansion and bus bridging for legacy microcontrollers, address decoding for memory-mapped peripherals, asynchronous state-machine control in industrial controllers, and glue-logic replacement of discrete 74-series TTL/MSI in telecommunications backplane and white-goods designs. The deterministic timing and low power consumption also make it suitable for power-management sequencing in multi-rail systems. When designing with this device, observe the VCCINT (3.3 V core) and VCCIO (2.5 V or 3.3 V I/O) decoupling recommendations from the MAX 3000A Family Data Sheet. Place one 0.1 uF ceramic decoupling capacitor per VCC pin cluster and ensure JTAG TMS/TCK/TDO/TDI lines are pulled to a defined logic level. Use the Altera MAX+PLUS II or Quartus II design tools for schematic/VHDL/Verilog entry and ISP programming.
EPM3512AQC20810N - MAX 3000A CPLD 512 Macro Cells 208-PQFP | Altera
The Intel (formerly Altera) EPM3512AQC20810N is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), offering 512 macro cells, 10,000 usable gates, and 172 user I/Os in a 208-pin Plastic Quad Flat Pack (PQFP) package. It features a 10 ns pin-to-pin propagation delay and is fabricated on a 3.3 V EEPROM-based process, making it suitable for 5.0 V tolerant I/O systems with 3.3 V core operation. The device supports in-system programmability via the IEEE Std. 1532 compliant JTAG interface, enabling concurrent ISP from multiple PLD vendors. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macro cell arrays on a single chip with a programmable interconnect matrix. CPLDs sit between simple glue-logic gates and high-density FPGAs in the programmable logic hierarchy, offering deterministic timing, instant-on operation from on-chip EEPROM, and predictable I/O behavior. The MAX 3000A family is part of the broader programmable logic taxonomy (CPLD -> programmable logic -> digital IC -> semiconductor), targeting bus-interface, glue-logic, and state-machine applications where non-volatility and fast propagation delays matter more than raw gate density. Key features of the EPM3512AQC20810N include 172 user I/O pins, 512 macro cells distributed across 16 logic array blocks (LABs), 12 product terms per macro cell, and a global clear signal. The 208-pin PQFP package provides generous I/O count for parallel bus bridging and address decoding functions. The 10 ns tPD supports high-speed glue logic, while the 3.3 V core (with 5.0 V tolerant I/O) simplifies interface to legacy 5 V microprocessors and memories. The on-chip EEPROM configuration memory eliminates the need for external boot devices and enables instant-on logic operation. The MAX 3000A architecture uses a classic MAX-based structure with each macro cell containing a programmable AND/OR array, a configurable flip-flop, and product-term allocation logic. The LAB interconnect is non-segmented and predictable, which is why engineers choose this family when deterministic timing (compile-time static delays) is required for asynchronous interfaces, decoder logic, or interrupt prioritization. The JTAG (IEEE 1149.1) and ISP (IEEE 1532) interfaces allow board-level programming and boundary-scan testing without removing the device from the circuit. Typical applications include processor bus-interface bridging (e.g., 8-bit MCU to 16-bit or 32-bit peripheral), address decoding and chip-select generation, glue-logic integration, interrupt controllers, state-machine controllers in motor drive and industrial automation, and legacy 5 V system modernization. The device is widely used in industrial, telecom, and embedded designs that benefit from instant-on programmable logic without external boot ROM. When designing with the EPM3512AQC20810N, observe the 3.3 V core supply requirement and verify all I/O banks are powered within the recommended operating range. Decouple VCCINT and VCCIO pins with 0.1 uF ceramic capacitors placed close to each power pin, and route JTAG signals (TCK, TMS, TDI, TDO) away from high-current switching traces. Consult the MAX 3000A family datasheet for the exact pinout, JTAG programming waveforms, and recommended footprint for the 208-pin PQFP. This page synthesizes distributor pricing, parametric comparison data, and practical design notes for the EPM3512AQC20810N that complement the manufacturer datasheet with drop-in alternatives and application-specific guidance.
EPM3512AQC210-10 - MAX 3000A CPLD, 512 Macrocells, PQFP-210 | Altera
The Altera (now Intel) EPM3512AQC210-10 is a member of the MAX 3000A family of high-density, high-performance CMOS Complex Programmable Logic Devices (CPLDs), delivering 512 logic macrocells in a 208-pin (or 210-pin PQFP-style) plastic quad flat pack package with -10 speed grade. Built on a 5 V-tolerant, in-system programmable (ISP) EEPROM-based architecture, the device targets glue-logic, bus interfacing, and state-machine integration tasks in industrial, telecommunications, and embedded computing systems. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple SPLDs (e.g., GAL/PAL) and larger FPGAs in the programmable logic hierarchy. Like FPGAs, CPLDs offer reconfigurable combinational and sequential logic, but unlike FPGAs they provide predictable, deterministic timing with sub-nanosecond pin-to-pin propagation delays, instant-on operation from internal EEPROM, and a simpler, JTAG/ISP-based design flow. The MAX 3000A family specifically extends Altera's classic MAX architecture with 5 V-tolerant I/O and enhanced ISP support, bridging legacy 5 V designs with modern 3.3 V system buses. Key features of the EPM3512AQC210-10 include 512 macrocells organized into 16 Logic Array Blocks (LABs) of 32 macrocells each, 10 ns maximum pin-to-pin propagation delay (tPD1) corresponding to the -10 speed grade, and a maximum operating frequency of 125 MHz. The device supports in-system programmability via JTAG (IEEE 1149.1 boundary-scan) and supports multi-voltage I/O with 5.0 V-tolerant inputs and 3.3 V or 2.5 V output capability (PCI-compliant). It includes 16 dedicated input pins and a global clear signal for asynchronous register reset. Technically, the EPM3512AQC210-10 uses an EEPROM-based logic element architecture with each macrocell containing a programmable AND/OR array and a configurable flip-flop with four product-term control options. The Logic Array Block interconnect (FastTrack) provides continuous, predictable routing that allows timing simulation without place-and-route iterations. The device operates from a single 3.3 V core supply (VCCINT) and supports mixed-voltage I/O banks powered by VCCIO pins for 3.3 V / 2.5 V / 1.8 V operation. Designers use Altera's MAX+PLUS II or Quartus II design software (legacy support) for synthesis, fitting, and programming. Typical applications include peripheral bus interfacing (e.g., 8/16/32-bit microcontroller bus decoding and chip-select generation), state-machine controllers in motor drives, address decoding and glue logic in industrial controllers, PCI interface bridging, and legacy system modernization where 5 V tolerance is mandatory. Its deterministic timing makes it especially attractive for asynchronous logic replacement and interrupt/handshake controllers. Designers should be aware that the MAX 3000A family has been classified as legacy/Not Recommended for New Designs (NRND) by Intel (formerly Altera) - the device remains available through the obsolete-product channel and authorized distributors, but newer designs should consider MAX II, MAX V, or MAX 10 CPLD families. Confirm long-term supply through authorized franchised distributors and check lifecycle status before committing to new production.
EPM3512AQC210-7 - MAX 3000A CPLD, 512 Macrocells | Altera
The Altera (now Intel) EPM3512AQC210-7 is a member of the MAX 3000A family of high-density, in-system programmable Complex Programmable Logic Devices (CPLDs) housed in a 208-pin PQFP package with a 7 ns pin-to-pin propagation delay speed grade. The device delivers 512 macrocells organized in 16 Logic Array Blocks (LABs), 12 dedicated input pins, and operates from a 3.3 V core supply. A CPLD (Complex Programmable Logic Device) is a non-volatile, flash-based programmable logic device used to implement glue logic, bus interfacing, state machines, and wide combinational/sequential functions. It occupies the hierarchy slot above discrete TTL/CMOS logic gates and below FPGAs, providing deterministic timing, instant-on behavior, and high I/O count in a single chip. The MAX 3000A family specifically targets cost-sensitive applications that need MultiVolt I/O support for interfacing with 1.8 V, 2.5 V, 3.3 V, and 5.0 V mixed-voltage systems without external level shifters. Key features include 5V-tolerant I/O pins, JTAG-based in-system programmability via IEEE Std. 1149.1 boundary-scan, programmable interconnect with fast propagation delays, and macrocell-level flip-flops with individual clear, preset, clock-enable, and product-term allocation. The 7 ns speed grade places it in the fast tier of the MAX 3000A family, suitable for state-machine and bus-arbitration logic where timing margins are tight. Typical applications include bus interface bridging, address decoding and latching, power-supply sequencing, configuration logic for microcontrollers and DSPs, peripheral glue logic, and legacy system refresh in industrial automation, telecom, and embedded computing platforms. Designers choose the MAX 3000A family for low-power, non-volatile logic integration in compact footprints. A primary trade-off when designing with the EPM3512AQC210-7: this part is in production but the MAX 3000A family has been classified NRND/end-of-life for many package/grade combinations, so long-term availability for new designs must be validated against the latest PCN documents. For new designs, evaluate MAX II or MAX V CPLDs as pin-compatible successors where applicable. This page synthesizes distributor pricing, drop-in same-brand alternatives from the Site MPN catalog, and practical design notes not consolidated in any single manufacturer datasheet.
EPM3512AQI208-10 - 512-Macrocell CPLD, 208-PQFP | Intel (Altera)
The Intel (Altera) EPM3512AQI208-10 is a member of the MAX 3000A family of in-system programmable CMOS complex programmable logic devices (CPLDs), delivering 512 macrocells, 10,000 usable gates and 172 user I/O pins in a 208-pin PQFP package with a 10 ns pin-to-pin propagation delay. It is organized as 16 Logic Array Blocks (LABs) of 32 macrocells each, interconnected by a programmable interconnect array, and supports non-volatile EEPROM configuration cells that retain logic when power is removed. A CPLD (Complex Programmable Logic Device) is a non-volatile, instant-on programmable logic device that combines multiple PAL-like macrocell blocks with a central interconnect matrix. In the system hierarchy it sits below an FPGA but above discrete 74-series glue logic, providing deterministic timing, low power, and zero configuration time. The MAX 3000A family uses 3.3 V core operation, IEEE Std. 1149.1 (JTAG) and IEEE Std. 1532 in-system programmability, and is built on a 5-line, 5-cell EEpROM process. Key features of the EPM3512AQI208-10 include a 87 MHz internal fMAX from logic feedback, a tPD of 10 ns (the suffix "-10"), 100% TTL-compatible I/O, 16 LABs, and a MultiVolt I/O interface that allows interfacing to 1.8 V, 2.5 V, 3.3 V and 5.0 V devices. Each I/O has a programmable register with individual clock, clock-enable and clear controls. The part also provides four JTAG boundary-scan chains for board-level testing. Architecturally, the device is built on a 0.30 µm CMOS EEPROM process with 4-input product-term macrocells. Each macrocell contains a programmable AND/OR/XOR/cascade array feeding a flipflop that can be configured as D, T, JK or SR. The global interconnect uses a fast, predictable switch matrix, which is why CPLDs deliver deterministic propagation delays that FPGAs cannot guarantee. Typical applications include bus and address decoding, glue-logic integration, power-sequencer state machines, peripheral interfacing, and 5 V/3.3 V level translation bridges. Designers choose the EPM3512AQI208-10 when deterministic 10 ns timing, high I/O count, and zero boot time are required - for example in industrial controllers, telecom backplane glue logic and PCI/ISA bus interfaces. When designing with the part, note that the package is PQFP (plastic quad flat pack), so pin-to-pin capacitance and lead inductance must be considered for signals above 50 MHz. Decoupling requires 0.1 µF ceramic plus 10 µF bulk per supply pin, and JTAG signals TMS/TCK/TDI/TDO must be pulled to defined states during power-up per IEEE 1149.1. This page synthesizes distributor pricing, same-package drop-in alternatives and practical design notes that complement the manufacturer datasheet, helping engineers evaluate the EPM3512AQI208-10 versus higher-density MAX II or modern MAX V CPLDs.
EPM3512AQI208-10 - 512-Macrocell MAX 3000A CPLD, 208-Pin PQFP | Intel
The Intel (formerly Altera) EPM3512AQI208-10 is a 512-macrocell member of the MAX 3000A family of high-performance, low-cost, CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs), housed in a 208-pin Plastic Quad Flat Pack (PQFP) package with industrial temperature grading. It features 10 ns pin-to-pin logic delays, supports counter frequencies up to 116 MHz, and provides 172 user I/O pins for high-density glue-logic integration. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic device that combines the instant-on characteristics of PAL/GAL with the macrocell density of an FPGA. CPLDs sit in the broader taxonomy of programmable logic: programmable logic -> CPLD -> EEPROM-based CPLD -> MAX 3000A family. They are widely used for I/O expansion, bus bridging, address decoding, and state-machine control in systems that require deterministic timing and zero-config boot behavior. The MAX 3000A architecture adds 3.3-V in-system programmability (ISP) through the IEEE 1149.1 JTAG interface, removing the need for a separate programmer. Key features of the EPM3512AQI208-10 include 512 macrocells organized in 16 Logic Array Blocks (LABs), MultiVolt I/O supporting 5.0 V, 3.3 V, and 2.5 V logic interfaces from a 3.3 V core supply, 4.5 ns to 10 ns pin-to-pin delays across speed grades, and PCI-SIG-compliant timing in the -4/-5/-6/-7/-10 speed grades per the PCI Local Bus Specification Revision 2.2. The MultiVolt interface allows direct connection to legacy 5 V TTL/CMOS devices without external level shifters, simplifying mixed-voltage PCB designs. The device uses a classic EEPROM-based architecture with a global interconnect fabric (the Programmable Interconnect Array, or PIA) that routes every LAB to every other LAB with predictable timing, making it ideal for asynchronous and decoder-style logic where FPGA routing variability is undesirable. The JTAG boundary-scan and ISP support enables in-field reconfiguration, while the open-drain or pull-up configurable I/O banks allow direct bus interfacing. Each macrocell contains a programmable flipflop and configurable product-term logic, providing up to 16 product terms per macrocell. Typical applications include PCI bus interface glue logic, address decoding and chip-select generation in embedded systems, I/O expansion for microcontrollers with limited pin counts, bus arbitration, and state-machine controllers in industrial automation equipment. The industrial temperature grade (-40C to +85C, indicated by the I suffix) and PCI-compliant timing make it particularly suitable for industrial and embedded computing platforms that need deterministic, low-latency logic. When designing with this part, ensure that the 3.3 V core supply is well decoupled with 0.1 uF and 10 uF capacitors near each VCC pin, and that JTAG TMS/TCK/TDI/TDO traces are kept short and length-matched for reliable ISP. Because this part is in the MAX 3000A legacy family, new designs should consider migrating to MAX II or MAX V CPLDs for lower power and active support, unless the specific 5 V-tolerant I/O or PCI timing of MAX 3000A is required. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes - including 208-pin PQFP pinout mapping and PCI timing compliance verification - that are not consolidated on the manufacturer datasheet cover page.
EPM3512AQI208-10N - 512-Macro MAX 3000A CPLD 208-PQFP | Intel
The Intel (formerly Altera) EPM3512AQI208-10N is a high-density, 3.3 V CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, offering 512 macro cells, 208 user I/Os, and a 10 ns propagation delay in a 208-pin PQFP (FINE LINE BGA-style) package. It is built on the classic MAX architecture with in-system programmability (ISP) compliant with IEEE Std. 1532, JTAG boundary-scan test support per IEEE Std. 1149.1, and multi-vendor concurrent programming capability. 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 a programmable interconnect matrix. Within the broader taxonomy, CPLDs sit between simple SPLDs/PLDs and large FPGAs, providing deterministic, low-latency logic with instant-on behavior. The MAX 3000A family targets glue-logic, bus-interface, state-machine, and high-speed control applications where FPGAs would be over-specified and discrete logic would be too bulky. Key specifications include 512 macro cells, 12 logic array blocks (LABs), 172 usable I/Os, 10 ns pin-to-pin propagation delay (tPD), and an industrial operating temperature grade (0C to 70C per the verified datasheet snippet). The device supports 3.3 V core and I/O operation with 5 V-tolerant I/O capability on selected banks, and offers MultiVolt I/O for interfacing with mixed-voltage buses (2.5 V, 3.3 V, 5 V). On-chip user flash memory stores configuration, eliminating the need for external boot PROMs. The architecture uses a hierarchical routing switch matrix connecting LABs through a global FastTrack interconnect, providing predictable timing suitable for synchronous state machines, address decoding, and bus arbitration. Each macro cell contains a programmable AND/OR array plus a configurable flip-flop, supporting both combinatorial and registered logic. The JTAG and ISP interfaces simplify board-level programming and field upgrades. Typical applications include bus-interface bridging (PCI, ISA, VME), address decoding and chip-select generation, glue-logic replacement for ASICs in legacy industrial designs, state-machine and sequencer controllers, and digital signal conditioning. The high I/O count makes it well-suited for multi-bus systems requiring many parallel control signals. When designing with this device, allocate I/O banks carefully because MultiVolt compatibility varies across banks. Decoupling should follow Altera's reference layout with 0.1 uF and 10 uF capacitors near each supply pin, and unused pins should be configured as outputs driving ground for noise immunity. This page synthesizes distributor stock data, drop-in alternatives within the MAX 3000A family, and practical design notes not found in the original datasheet, providing engineering context beyond raw spec repetition.
EPM3512AQI208-7 - MAX 3000A CPLD, 512 Macro Cells, 208-PQFP | Altera
The Altera (Intel) EPM3512AQI208-7 is a member of the MAX 3000A Complex Programmable Logic Device (CPLD) family, delivering 10,000 usable gates with 512 macro cells and a 116.3 MHz internal performance grade, housed in a 208-pin Plastic Quad Flat Pack (PQFP) package. It operates from a 3.3 V core supply and supports 2.5 V, 3.3 V, or 5.0 V I/O operation through separate VCCINT and VCCIO rails. A CPLD (Complex Programmable Logic Device) is a non-volatile, flash- or EPROM-based programmable logic device that sits between simple PLDs and FPGAs in the programmable logic hierarchy: simple PLD < CPLD < FPGA. Compared with FPGAs, CPLDs offer deterministic timing (typically 5-10 ns pin-to-pin), instant-on non-volatile configuration, and very low standby power, which makes them well suited for glue logic, bus decoding, and power-sequencing tasks in larger systems. Key features of the EPM3512AQI208-7 include 512 macro cells (arranged in 16 Logic Array Blocks of 32 cells each), 100% non-volatile in-system programmability compliant with the IEEE Std. 1532 ISP specification, 3.3 V core operation with multi-voltage I/O support, and a speed grade of -7 which delivers a tPD (pin-to-pin delay) of approximately 7.5 ns and an fCNT toggle rate around 116.3 MHz. The device integrates JTAG boundary-scan support and a 4-pin JTAG interface for ISP. Architecturally, the EPM3512AQI208-7 uses an EPROM-based programmable interconnect matrix (PIA) and product-term macro cells - a classic MAX-style architecture that has shipped in hundreds of millions of units since the mid-1990s. Its non-volatile bit cells retain logic configuration without external boot memory, which simplifies board layout and BOM cost versus SRAM-based FPGAs. Typical applications include industrial control glue logic, address decoding and bus interfacing for legacy microprocessors, power-supply sequencing in multi-rail systems, peripheral expansion in 8051/PIC-based designs, and prototyping interfaces for ASIC emulation. The PQFP-208 footprint also allows hand-soldering and socketed prototyping, which is rarely possible with modern fine-pitch BGA packages. When designing with this device, ensure that both VCCINT (3.3 V) and VCCIO (2.5 V / 3.3 V / 5.0 V) rails are properly decoupled with 0.1 uF and 10 uF capacitors placed close to the pins. The MAX 3000A is mature and in NRND/EOL transition for many variants, so design for second-source availability within the same PQFP-208 footprint (such as the EPM3512AQC208-7 family). This page synthesizes distributor pricing, parametric drop-in alternatives within the MAX 3000A family, and practical design notes not found in the original manufacturer datasheet.
EPM3512AQI208-7N - MAX 3000A CPLD 512 Macrocells 116.3MHz | Intel
The Intel EPM3512AQI208-7N is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs) from Intel (formerly Altera). It delivers 10,000 usable gates, 512 macrocells, and a maximum operating frequency of 116.3 MHz, all housed in a 208-pin Plastic Quad Flat Pack (PQFP) package with a 3.3 V core supply. 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 a programmable interconnect matrix. In the programmable logic hierarchy, a CPLD sits between small SPLDs and larger FPGAs: it offers deterministic timing, instant-on non-volatile configuration, and is well suited to glue logic, bus interfacing, and state-machine replacement. The MAX 3000A family is the third-generation classic Altera MAX architecture built on EEPROM cells, providing 100% tested timing and JTAG-based in-system programmability. Key features of the EPM3512AQI208-7N include 512 macrocells across 16 Logic Array Blocks (LABs), 32 macrocell registers per LAB, in-system programmability through IEEE Std 1149.1 (JTAG), multi-voltage I/O support at 2.5 V, 3.3 V or 5.0 V via separate VCCINT and VCCIO pins, and pin-compatible migration across the MAX 3000A density range. The '7N' speed grade and industrial temperature rating make it appropriate for production-grade embedded systems. The device uses a classic MAX architecture where each macrocell contains a programmable AND/OR array feeding a flip-flop with product-term steering. The JTAG interface supports boundary-scan test and programming, while the MultiVolt I/O pins allow mixed-voltage interfacing without external level shifters. Combined with non-volatile EEPROM configuration, the design starts in microseconds with no external boot memory required. Typical applications include industrial control glue logic, peripheral bus bridging, address decoding, and state-machine replacement. Designers also use the EPM3512AQI208-7N for legacy interface replacement (PCI, ISA, VME), timing-critical control paths, and cost-sensitive volume production where FPGA overhead is not justified. A practical design consideration: when migrating from 5.0 V to 3.3 V systems, verify VCCIO is tied to the I/O rail (2.5 V or 3.3 V) and VCCINT to the 3.3 V core rail. Use the Altera/Intel Quartus MAX+PLUS II toolchain with the EDIF/VHDL netlist as the programming input for legacy MAX 3000A designs. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the original Altera MAX 3000A datasheet family documentation.
EPM3512AQI210-10 - MAX 3000A CPLD, 512 Macrocells, PQFP-210 | Intel
The Intel (formerly Altera) EPM3512AQI210-10 is a high-density member of the MAX 3000A family of CMOS programmable logic devices, delivering 512 macrocells, 10,000 usable gates, and a 10 ns pin-to-pin logic delay in a 210-pin Plastic Quad Flat Pack (PQFP) package. Designed for 3.3 V core operation with 5 V-tolerant I/O, this device provides in-system programmability (ISP) through a standard 4-pin JTAG interface. What is a CPLD? A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic IC that combines multiple PAL-like logic blocks on a single die, with a programmable interconnect matrix. CPLDs sit between simple SPLDs and larger FPGAs in the programmable logic hierarchy: SPLD -> CPLD -> FPGA -> SoC FPGA. They excel at glue logic, bus interfacing, state-machine implementation, and power-up deterministic logic because their configuration is stored in non-volatile EEPROM cells rather than SRAM. Key features of the EPM3512AQI210-10 include 512 macrocells organized into 16 Logic Array Blocks (LABs) of 32 macrocells each, 212 maximum user I/O pins, MultiVolt I/O support for 1.8 V / 2.5 V / 3.3 V / 5 V mixed-voltage interfacing, and a JTAG-compliant IEEE 1149.1 boundary-scan test interface. The device also supports the IEEE 1532 in-system programmability standard, allowing field updates via JTAG. The MAX 3000A architecture uses a classic EEPROM-based switch matrix and a unified interconnect network, providing predictable timing with no routing-dependent delay variation. This makes the EPM3512AQI210-10 well suited to designs where deterministic propagation delay is more important than raw logic density. The 10 ns speed grade (-10 suffix) targets applications requiring higher throughput than the -7 or -15 grades. Typical applications include bus bridges between microprocessors and peripherals, address decoding and glue logic in industrial controllers, state-machine-driven interface adaptation, and pin-constrained legacy system upgrades where a footprint-compatible higher-density part is required. The 210-pin PQFP footprint enables hand-soldering and rework in low-volume or prototyping environments, unlike modern BGA packages. When designing with this device, note that the -10 speed grade is the slowest commercial grade in the MAX 3000A family; -7 and -5 grades are faster but command higher prices. The PQFP-210 package is large and the part is increasingly hard to source as the MAX 3000A family approaches end-of-life, so lifecycle planning should include a second-source review. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPM3512ATC144 - MAX 3000A CPLD, 512 Macrocells, 144-Pin TQFP | Altera
The Altera EPM3512ATC144 is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), delivering 512 macrocells in a 144-pin Thin Quad Flat Pack (TQFP) package. Built on a 0.30 µm EEPROM process, the device provides in-system programmability (ISP) through a 4-pin JTAG interface compliant with IEEE Std. 1149.1. Operating from a 3.3 V core supply, the EPM3512ATC144 combines non-volatile configuration memory with predictable timing suitable for glue-logic, bus-interface, and state-machine designs. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that sits between simple PAL/GAL devices and large FPGAs in the digital logic hierarchy: programmable logic -> CPLD -> FPGA -> ASIC. CPLDs use a classic AND/OR PLA architecture with a global interconnect fabric, giving them deterministic pin-to-pin propagation delays (typically 5–10 ns) and instant-on behavior at power-up because the configuration is stored in on-chip EEPROM rather than loaded from an external boot flash. Key features of the EPM3512ATC144 include 512 macrocells organized in 16 Logic Array Blocks (LABs) of 32 macrocells each, a maximum of 212 user I/O pins, 32 product terms per macrocell with expandable capability, and a maximum operating frequency of approximately 116 MHz. The device also supports open-drain output enables, programmable slew rate, and individual tri-state control on every I/O pin. MultiVolt I/O pins accept 2.5 V, 3.3 V, or 5 V signaling with proper configuration. The MAX 3000A architecture uses a uniform interconnect matrix that routes every LAB to every other LAB through a single fast-track channel, eliminating routing bottlenecks and providing predictable, deterministic timing. Each macrocell contains a programmable AND/OR array followed by a flip-flop that can be configured as D, T, JK, or SR, allowing direct synthesis of complex state machines in a single device. Typical applications include bus-interface bridging, address decoding for microprocessor systems, peripheral glue logic, power-on reset sequencing, LED/display multiplexing, and industrial control replacement of discrete 74-series logic. The instant-on behavior and non-volatile configuration make the EPM3512ATC144 particularly useful in safety-critical or deterministic-latency systems where an FPGA's boot time would be unacceptable. Designers should note that the EPM3512ATC144 is part of a mature, NRND (Not Recommended for New Designs) family. New designs should evaluate MAX II, MAX V, or MAX 10 CPLDs from Intel/Altera, which provide lower static power, smaller packages, and JTAG ISP support. The TQFP-144 footprint, however, remains convenient for prototyping and legacy system upgrades. This page synthesizes distributor pricing, drop-in same-family alternatives, lifecycle status, and practical design notes for the EPM3512ATC144 that are not consolidated in the original Altera datasheet.
EPM3512ATC144-10 - MAX 3000A CPLD, 512 Macrocells, 144-TQFP | Intel
The Intel EPM3512ATC144-10 is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), delivering 512 macrocells, 10,000 usable gates, and a 10 ns pin-to-pin logic delay in a 144-pin TQFP package. The part suffix "-10" denotes the commercial speed grade with a maximum propagation delay (tPD) of 10 ns and is offered in the industrial operating temperature range. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, flash-based programmable logic device that sits between simple PLDs (PAL/GAL) and FPGAs in the programmable logic hierarchy. MAX 3000A devices use EEPROM configuration cells and a MultiVolt I/O architecture that supports 2.5 V, 3.3 V, and 5.0 V mixed-voltage operation, allowing the part to bridge legacy 5 V peripherals and modern 3.3 V ASICs/FPGAs on the same board. Key features of the EPM3512ATC144-10 include 512 macrocells organized in 16 Logic Array Blocks (LABs) of 32 macrocells each, a maximum of 212 user I/O pins (limited to 114 in the 144-pin package due to package pinout), 100% interconnect with predictable timing, and an in-system programmability (ISP) interface through the JTAG-compliant IEEE Std. 1149.1 boundary-scan port. The -10 speed grade provides a tPD of 10 ns, a tSU of 7.0 ns, and a tCO of 6.5 ns, suitable for decoder, glue-logic, and bus-interface applications in industrial control, telecom, and embedded systems. The MAX 3000A architecture combines a fine-grained macrocell fabric with a continuous, fast interconnect matrix called the Programmable Interconnect Array (PIA). Each macrocell contains a programmable AND/OR/Exclusive-OR array, a flip-flop (D, T, JK, or SR), a programmable clock enable, and per-macrocell local routing. Global clocks and clear signals are distributed on dedicated low-skew networks, which simplifies timing closure for state-machine and counter designs. Typical applications include address decoding and bus-interface glue logic for 8/16/32-bit microprocessors, motor-control timing, display and keyboard scan controllers, PCI/ISA bus bridges, and CPLD-based I/O expansion. Designers typically pair the EPM3512ATC144-10 with microcontrollers, DSPs, or microprocessors that require additional deterministic-latency glue logic or voltage-level translation. When designing with this device, allocate the JTAG pins (TDI, TDO, TMS, TCK) and the dedicated INPUT/GCLK1/GCLK2/GOE1/GOE2/CLR pins early - they cannot be repurposed as user I/O and ignoring them is a frequent first-pass schematic mistake. The Quartus II (or MAX+PLUS II for legacy designs) software provides fitter, timing analyzer, and simulation support; verify the chosen tool version still supports the MAX 3000A device family before committing to a new design. This page synthesizes distributor pricing, same-family CPLD alternatives from the MAX 3000A lineup, and practical design notes not found in the legacy datasheet, helping engineers assess whether the EPM3512ATC144-10 fits a new design or a long-life maintenance scenario.
EPM3512ATC144-10N - MAX 3000A CPLD, 512 Macrocells, 144-TQFP | Intel
The Intel EPM3512ATC144-10N is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs) housed in a 144-pin TQFP (TC144) package with 512 macrocells, 10000 usable gates, and a 10 ns pin-to-pin propagation delay. As a non-volatile, EEPROM-based programmable logic device, it provides instant-on configuration and is targeted at glue-logic, bus interfacing, and state-machine applications in industrial, communications, and consumer electronics. The device operates from a 3.3 V core supply with 5 V-tolerant I/O, simplifying mixed-voltage system design. What is a CPLD? A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic device that combines multiple PAL/GAL-style macrocell arrays with a central interconnect matrix. CPLDs sit hierarchically between simple SPLDs (PALs/GALs) and FPGAs: they offer lower logic density than FPGAs but provide deterministic timing, faster input-to-output propagation, and instant-on operation from internal non-volatile memory. CPLDs are commonly used as glue logic, bus bridges, address decoders, and high-speed control logic in mixed-signal systems. Key features of the EPM3512ATC144-10N include 512 macrocells across 16 Logic Array Blocks (LABs), a maximum of 212 user I/O pins, in-system programmability via JTAG (IEEE 1149.1 boundary-scan), and a 3.3 V core supply with MultiVolt I/O supporting 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5 V interface levels. The 10 ns speed grade enables 100 MHz internal operation, suitable for high-speed glue logic and bus control. Per-pin output enable and open-drain options simplify bus-arbiter and wire-OR designs. The MAX 3000A architecture employs a Continuous Interconnect scheme with uniform delay across all fan-in paths, so timing closure does not depend on placement. Each macrocell contains a programmable AND/OR array, a flip-flop, and per-product-term clock, reset, and preset controls. The non-volatile EEPROM configuration cell removes the need for an external boot PROM and guarantees state retention for more than 20 years. Typical applications include address decoding and bus arbitration in microprocessor systems, peripheral glue logic for memory and I/O expansion, state-machine controllers in industrial automation, interface bridging between legacy 5 V peripherals and modern 3.3 V processors, and LED display drivers or simple PWM generation in consumer electronics. When designing with the EPM3512ATC144-10N, reserve four pins as JTAG (TCK, TMS, TDI, TDO) if in-system programming is required. Decouple each VCC pin with a 0.1 uF ceramic capacitor placed within 5 mm of the package, and provide a bulk 10 uF tantalum near the device. Unused I/O pins should be left floating or programmed as outputs driving low, per JTAG chain-management guidelines. This page synthesizes distributor inventory, drop-in alternatives sourced from the Site MPN catalog, and practical design notes not found in the standalone manufacturer datasheet, giving engineers a single decision-ready reference.
EPM3512ATC256-10N - MAX 3000A CPLD, 512 Macrocells | Altera
The Altera (Intel) EPM3512ATC256-10N is a high-density, low-cost CPLD from the MAX 3000A programmable logic device family, delivering 512 macrocells and 208 user I/O pins in a 256-pin FBG256 (FineLine BGA) package. It operates from a 3.3 V core supply, supports in-system programmability through the IEEE Std. 1149.1 JTAG interface, and offers a 10 ns pin-to-pin logic delay (tPD1) for glue-logic and bus-interface bridging. A Complex Programmable Logic Device (CPLD) is a non-volatile, coarse-grained programmable logic IC that sits between small PAL/GAL devices and high-density FPGAs. Architecturally, a CPLD combines multiple PLA-style logic-array blocks (LABs) interconnected by a central programmable switch matrix (the "interconnect array"), with each macrocell containing a product-term AND/OR array plus a programmable flip-flop. Compared with FPGAs, CPLDs offer deterministic timing, faster power-on (no external boot PROM), and lower per-unit cost at modest logic densities - making them ideal for I/O expansion, address decoding, state-machine control, and bus-interface bridging. Key features of the EPM3512ATC256-10N include 512 macrocells distributed across 16 logic array blocks, 208 maximum user I/O pins, MultiVolt I/O supporting 1.8 V, 2.5 V, 3.3 V, and 5.0 V mixed-voltage interfaces, 3.3 V core supply, and 10 ns tPD1 propagation delay. The device is in-system programmable via JTAG (IEEE 1149.1), supports the MAX+PLUS II and Quartus design toolchains, and is offered in a commercial 0 C to +70 C temperature grade (the "C" suffix). Architecturally, the MAX 3000A family is built on a 0.30 um CMOS EEPROM process. Each macrocell provides a programmable product-term array with a configurable D/T/JK flip-flop, and the central interconnect matrix uses continuous, paged routing for fast, predictable timing. The FBG256 package exposes the maximum user I/O count for this die, enabling wide parallel bus interfaces such as 32-bit address/data steering, PCI bridging, and memory-controller glue logic. Typical applications include address decoding and bus-interface bridging in 32-bit/64-bit microprocessor systems, I/O expansion and GPIO multiplexing, state-machine and sequencer controllers, peripheral glue logic for ASIC/FPGA designs, and JTAG-controlled board-level test and configuration networks. The high I/O count and MultiVolt support make it especially useful in mixed-voltage legacy-modern interface designs. When designing with this device, plan I/O bank voltages carefully: each bank shares a VCCIO rail, so 5 V-tolerant inputs require 3.3 V VCCIO on that bank (with 5 V tolerance enabled on input pins). Use Quartus II or MAX+PLUS II for fitter and timing analysis, and reserve the JTAG pins (TCK/TMS/TDI/TDO) for in-system programming access. This page synthesizes distributor pricing for the EPM3512ATC256-10N, MAX 3000A same-family drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
EPM3512ATI256-10N - 512-Macrocell MAX 3000A CPLD | Intel / Altera
The Intel / Altera EPM3512ATI256-10N is a high-density, in-system programmable Complex Programmable Logic Device (CPLD) from the MAX 3000A family, providing 512 macrocells, 10,000 usable gates, and 256 pins in an industrial-grade BGA package. The -10 speed grade delivers 10 ns pin-to-pin logic delay, supporting glue-logic and bus-interface applications that demand deterministic timing and non-volatile, instant-on configuration. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PLA-like logic blocks with a centralized interconnect matrix. Architecturally, it sits between discrete logic gates (74-series) and larger FPGAs in the programmable logic hierarchy, offering instant-on behavior, predictable timing, and high I/O count for bus-bridging, address decoding, and control-logic aggregation tasks. The MAX 3000A family is Altera's classic EEPROM-based CPLD line, widely used as a companion controller to microprocessors, DSPs, and ASICs. Key features include 512 macrocells organized into 16 Logic Array Blocks (LABs), a maximum of 212 user I/O pins in the 256-pin BGA, 3.3 V core operation, and 5.0 V tolerant I/O supporting MultiVolt interfacing to 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V rails. The device supports in-system programmability via JTAG (IEEE Std 1149.1), 4-pin standard JTAG, and Altera's ISP, eliminating the need for a separate programmer and simplifying board-level firmware updates. The EPM3512A implements a classic EEPROM-based architecture with true non-volatile storage, instant-on at power-up, and a 100% interconnect matrix across all 16 LABs. Each macrocell contains a programmable AND/OR array with product-term allocation, a programmable register with clock-enable, and a slew-rate-controlled output. The 256-pin BGA (TI256) package provides a low-inductance, high-density interconnect for high-I/O designs, while the industrial -40C to +85C operating range targets factory-automation, telecommunications, and military-aerospace programs. Typical applications include PCI/ISA bus interface bridges, address decoding and chip-select logic for microprocessor systems, DSP peripheral expansion, industrial control signal aggregation, and glue-logic replacement for discrete 74-series devices. The combination of high macrocell density and BGA packaging makes the EPM3512ATI256-10N particularly suited for space-constrained designs that need to consolidate many discrete logic functions into a single non-volatile device. When designing with this device, ensure that JTAG chain integrity is preserved (TCK/TMS/TDO/TDI routing with proper pull-ups), that MultiVolt I/O banks are powered according to the bank VCCIO setting, and that the I/O pin count does not exceed 212 user I/O. Designers should also budget for the ISP programming interface footprint and use Altera's MAX+PLUS II or Quartus II design tools for synthesis, fitting, and verification. This page synthesizes distributor pricing, drop-in alternatives from the same MAX 3000A family, and practical design notes not consolidated in the manufacturer datasheet, including parameter proximity analysis against higher-density MAX II and MAX V alternatives.
EPM5016DC-15 - 16-Macrocell MAX 5000 CPLD, 15ns DIP-24 | Altera
The Altera EPM5016DC-15 is a high-speed, high-density CMOS EPLD (Erasable Programmable Logic Device) from the classic MAX 5000 family, providing 16 macrocells in a 24-pin ceramic DIP package with a 15 ns pin-to-pin delay. The "DC" suffix denotes a windowed ceramic DIP (erasable UV) package and the "-15" speed grade designates the 15 ns combinatorial propagation delay, making this part suitable for legacy glue-logic replacement and education platforms. An EPLD (Erasable Programmable Logic Device) is a non-volatile programmable logic device that uses EPROM-style floating-gate memory cells to store the AND/OR array configuration. It sits in the hierarchy between PALs/GALs (smaller, simpler PLDs) and modern CPLDs/FPGAs, retaining the simple AND-OR plane architecture of PALs but expanding to multiple macrocells per device. The MAX 5000 family was Altera's mid-1990s high-density EPLD family, predating the in-system programmable MAX 7000 series and intended for designs that needed more logic than 22V10-class PALs but did not require an FPGA. Key features include 16 macrocells, 4 dedicated inputs, 12 I/O pins arranged in two Logic Array Blocks (LABs), a 15 ns tpd (pin-to-pin delay) and a 71 MHz fmax (maximum counter frequency). The device operates from a single 5 V supply (VCC = 4.75 V to 5.25 V) and is fabricated on a CMOS EPROM process, providing zero standby power and JTAG-free programming via the Altera MasterBlaster or ByteBlaster hardware. The ceramic DIP-24 package supports a maximum junction temperature of 125 °C. Technically, the MAX 5000 architecture combines a global AND array feeding two LABs, each with 8 macrocells that share programmable interconnect. Each macrocell contains a flip-flop, product-term selection logic, and an I/O control block. Unlike SRAM-based FPGAs, the EPROM configuration cell is non-volatile, so the device behaves like an ASIC at power-up with no external boot memory. Programming requires a 12.75 V VPP pulse and is performed through Altera's legacy programmer interface. Typical applications include legacy glue-logic replacement for 22V10-style designs, industrial control panels, educational logic-design labs, automotive prototype instrumentation, and reproduction of vintage computing peripherals where a drop-in 5 V programmable logic device is required. Designers often specify the EPM5016DC-15 when maintaining or restoring equipment originally designed around the MAX 5000 family. When designing with this part, note that the DIP-24 ceramic package is windowed for UV erasure; once programmed, the device retains configuration indefinitely but must be exposed to UV light for ~20 minutes to erase. New designs should consider the MAX 7000 or MAX II CPLD families for in-system programmability. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the EPM5016DC-15 that are not found in the original Altera datasheet alone.
EPM5016DC-17 - MAX 5000 CPLD, 16 Macrocells | Altera (Intel)
The Altera (now Intel) EPM5016DC-17 is a high-density, high-speed member of the MAX 5000 Complex Programmable Logic Device (CPLD) family, integrating 16 macrocells in a Ceramic DIP package. It is built on Altera's second-generation MAX architecture and is fabricated using a 0.75-micron CMOS EEPROM process, delivering non-volatile, in-system programmable logic with propagation delays of 17 ns. The device targets glue-logic, bus-interface, and state-machine replacement applications where 5V-tolerant TTL-compatible I/O and instant-on (no boot PROM required) behavior are essential. A CPLD (Complex Programmable Logic Device) is a non-volatile digital IC that contains multiple PAL-like logic blocks interconnected by a central programmable switch matrix. In the system hierarchy it sits between simple SPLDs (PAL/GAL) and FPGAs, offering deterministic timing, low power, and a small footprint ideal for decoder, latch, and bus-arbitration functions. The MAX 5000 family extends classic MAX features with higher macrocell density, an enhanced interconnect matrix, and JTAG-compliant in-system programmability (ISP) via Altera's ByteBlaster or BitBlaster cables. Key features of the EPM5016DC-17 include 16 macrocells, 32 flip-flops, up to 24 user I/O pins, a 7.5 ns tPD commercial timing model, a 67 MHz internal counter frequency, and pin-compatible upgrade paths to higher-density MAX 5000 devices. Its 5V-tolerant I/Os interface directly to TTL logic without external buffers, and the device retains its configuration in on-chip EEPROM, providing instant-on operation at power-up. Designers also benefit from programmable power-saving modes that reduce Icc to below 1 mA in standby. Architecturally, the EPM5016DC-17 uses Altera's classic MAX Logic Array Block (LAB) of 16 macrocells tied to a global Programmable Interconnect Array (PIA). Each macrocell contains a programmable AND/OR array, a configurable flip-flop, and an output enable control, giving designers both combinatorial and registered logic in the same block. The device supports programmable slew-rate control, allowing slow-edge or fast-edge outputs to optimize EMI or speed on a pin-by-pin basis. Typical applications include address decoding in 8-bit and 16-bit microprocessor systems, peripheral glue logic in ISA/PCI bridge designs, state-machine controllers, and bus-protocol adapters. Designers also use the MAX 5000 series in industrial control boards where 5V operation and ceramic-package reliability are required. When migrating a design from the EPM5016DC-17, note that the '-17' speed grade, the ceramic DIP package, and the 5V supply are all legacy characteristics; modern replacements use lower-voltage CMOS and surface-mount packages, so verify footprint compatibility before substituting. Always consult the Altera MAX 5000 datasheet for timing parameters and ISP programming voltage requirements specific to this device family. This page synthesizes distributor pricing, drop-in alternative MPNs from the Site MPN list, and practical design notes not found in the original manufacturer datasheet.