FPGA & CPLD
Products (6,800+)
EPM3512AFC256-7N - MAX 3000A CPLD, 512 Macrocells, 208 I/O | Altera
The Altera EPM3512AFC256-7N is a high-density, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, offering 10,000 usable gates, 512 macrocells, and 208 user I/Os in a 256-pin FineLine BGA package with a -7 speed grade (7.5 ns pin-to-pin propagation delay) and a commercial 0C to 70C operating temperature range. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic device that combines multiple PAL/GAL-style macrocell arrays with a central interconnect matrix, providing fast deterministic propagation delays, predictable timing, and instant-on behavior from on-chip EEPROM. CPLDs sit between simple SPLDs/GALs and large SRAM-based FPGAs in the programmable logic taxonomy: SPLD < CPLD < FPGA. The MAX 3000A family uses 3.3V core supply with multi-voltage VCCIO support for mixed 3.3V/2.5V I/O interfacing. Key features include in-system programmability compliant with IEEE Std. 1532 (concurrent ISP across vendors), a 116.3 MHz internal fMAX, 5V-tolerant I/O pins, JTAG boundary-scan test support, and programmable power-saving modes per macrocell. The 256-pin FBGA (1.0 mm pitch, FineLine BGA) package provides dense I/O with controlled-impedance signal paths suitable for high-speed glue-logic applications. The EPM3512AFC256-7N is built on a 0.30 micrometer CMOS EEPROM process with a 4-wire JTAG interface and a MultiVolt I/O architecture. Its deterministic timing model allows software tools (Quartus II / MAX+PLUS II) to compute exact worst-case fMAX before fabrication, eliminating timing closure iterations common with SRAM FPGAs. Typical applications include bus interface bridging, address decoding and glue logic, peripheral I/O expansion, state-machine controllers, and system-level reset/sequencing blocks in telecom, industrial, and consumer products. The 208 user I/Os make it especially useful where many parallel control signals must be aggregated without requiring an FPGA. Designers should use the Quartus II (legacy) or MAX+PLUS II toolchain to compile designs. A 1.0 mm-pitch FBGA requires careful PCB layout with microvia or via-in-pad technology; an external JTAG header (TCK, TMS, TDI, TDO, plus optional TRST) is required for ISP. Decouple each VCC and VCCIO pin with a 0.1 uF ceramic capacitor placed within 3 mm of the pin. This page synthesizes distributor pricing, pin-compatible drop-in alternatives drawn from the same MAX 3000A family, and practical design notes not found in the manufacturer datasheet, giving an engineer a single decision-ready reference for sourcing EPM3512AFC256-7N.
EPM3512AFC256C - MAX 3000A CPLD, 512 Macrocells, 208 I/O | Altera
The Intel (formerly Altera) EPM3512AFC256C is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), offering 512 macrocells and up to 208 user I/O pins in a 256-ball FineLine BGA package. The part is rated for commercial temperature operation (0C to +70C) and targets high-volume glue-logic and bus-interface applications where deterministic propagation delay and PCI-compliant timing are required. 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, the EPM3512AFC256C sits at: CPLD -> programmable logic device -> logic IC -> semiconductor. MAX 3000A devices use EEPROM-based configuration cells, providing instant-on operation without external boot memory, and offer MultiVolt I/O support so 5.0V, 3.3V, and 2.5V interfaces can coexist on a single device. Key features of the EPM3512AFC256C include 512 macrocells organized into 16 Logic Array Blocks (LABs), 12 dedicated input pins, a JTAG-based IEEE 1149.1 boundary-scan test interface, and bus-friendly architecture with programmable slew-rate control. Speed grades -4, -5, -6, -7, and -10 are PCI SIG Revision 2.2 compliant, which is critical for embedded designs interfacing to PCI buses. The MAX 3000A architecture uses a uniform interconnect matrix that delivers predictable, pin-to-pin propagation delays independent of routing complexity. Each macrocell contains a programmable AND/OR array, a flip-flop with clock-enable, and a configurable I/O architecture supporting registered, combinatorial, tri-state, and open-drain output modes. Typical applications include PCI bus interface glue logic, industrial control and factory automation, telecommunications backplane bridging, decoder/encoder functions for legacy bus protocols, and power-up sequencing controllers in distributed systems. The instant-on, non-volatile nature of the EEPROM configuration makes the EPM3512AFC256C especially attractive in safety-critical or deterministic-startup designs. When designing with this device, the JTAG chain must be properly terminated according to IEEE 1149.1 specifications. The MultiVolt core requires that VCCIO pins be properly configured to match the I/O bank voltage of the connected logic; mixing 5V and 3.3V signals without proper VCCIO planning can cause latch-up or permanent damage. This page synthesizes distributor pricing, drop-in alternative MPNs from the same MAX 3000A family, and practical design notes that extend the information found in the manufacturer datasheet alone.
EPM3512AFI256-10 - 512-Macrocell MAX 3000A CPLD, FBGA-256 | Intel
The Intel (formerly Altera) EPM3512AFI256-10 is a 512-macrocell, 10,000-gate member of the MAX 3000A Complex Programmable Logic Device family, housed in a 256-ball FineLine BGA (FBGA-256) package and rated for the commercial 0C to 70C operating range. The device is implemented in 3.3-V CMOS EEPROM technology and delivers 4.5-ns pin-to-pin logic delays with internal counter frequencies up to 227.3 MHz, supported by 208 user I/O pins and a MultiVolt I/O interface that lets the 3.3-V core communicate with 5.0-V, 3.3-V, and 2.5-V logic environments without external level shifters. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macrocells with a central interconnect matrix, sitting in the programmable-logic hierarchy between small SPLDs (a few macrocells) and large SRAM-based FPGAs (tens of thousands to millions of LUTs). MAX 3000A parts in particular use EEPROM configuration cells so the bitstream is retained without external boot memory, which makes them attractive for glue-logic, bus-interface, and power-on sequencing roles where instant-on behavior matters. Key features of the EPM3512AFI256-10 include 10K equivalent gates, 512 macrocells, IEEE Std. 1532-compliant 3.3-V in-system programmability (ISP) for concurrent vendor programming, MultiVolt I/O supporting 5.0/3.3/2.5-V interfaces, and 208 available user I/O pins routed through the 256-ball BGA. The ISP engine lets designers update logic in-circuit via JTAG, which simplifies field upgrades and reduces inventory SKUs. Architecturally, the MAX 3000A family is built around Logic Array Blocks (LABs) of 16 macrocells each, with each macrocell containing a programmable AND/OR array, a flip-flop, and product-term steering. A single Joint Test Action Group (JTAG) interface handles both boundary-scan testing and ISP, and the 3.3-V core voltage simplifies power-tree design when the part is paired with 3.3-V MCUs or ASICs. Typical applications include bus-interface bridging (e.g., glueless microprocessor-to-peripheral attachment), power-supply sequencing and supervisory logic, address decoding and chip-select generation, and high-speed state-machine controllers. Designers also use the EPM3512AFI256-10 for industrial control boards, telecom line-card glue logic, and legacy peripheral emulation where deterministic 4.5-ns propagation delay and non-volatile storage simplify board bring-up. A key design consideration when using this part is that the FBGA-256 package requires X-ray or reflow-with-inspection assembly and a PCB with appropriate microvia stack-up; the 1.0 mm (or finer) ball pitch is not friendly to hand rework. Thermal performance is generally excellent because of the low CMOS quiescent current, but engineers should still budget for the 256-ball BGA's thermal resistance during worst-case continuous-toggle testing. This page synthesizes distributor stock and pricing, MAX 3000A family drop-in alternatives, and practical glue-logic design notes not collected in the manufacturer datasheet, so procurement and design engineers can decide whether the EPM3512AFI256-10 is the right part for their next CPLD-based design.
EPM3512AFI256-10N - 512-Macro MAX 3000A CPLD, 256-FBGA | Intel/Altera
The Intel (formerly Altera) EPM3512AFI256-10N 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 256-ball FineLine BGA package with 208 user I/O pins. It delivers 10 ns pin-to-pin logic delays and counter frequencies up to 227.3 MHz on a 3.3 V core supply, with MultiVolt I/O supporting 5.0 V, 3.3 V, and 2.5 V interfaces. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macrocell blocks with a programmable interconnect matrix, occupying the middle ground between small discrete glue-logic ICs and large SRAM-based FPGAs. In the programmable logic hierarchy, CPLDs sit between simple SPLDs (Single Programmable Logic Devices) and FPGAs (Field-Programmable Gate Arrays), and are commonly used for I/O expansion, bus bridging, power-up sequencing, and state-machine implementation where deterministic timing and instant-on behavior are required. Key features of the EPM3512AFI256-10N include 512 macrocells organized into 16 Logic Array Blocks (LABs), 208 user I/O pins, 10 ns maximum pin-to-pin propagation delay (the "-10" speed grade), in-system programmability compliant with IEEE Std 1532, and JTAG boundary-scan test support per IEEE 1149.1. The device provides up to 10,000 usable gates and includes built-in EEPROM configuration memory that retains the design without an external boot PROM. Architecturally, the MAX 3000A family is built on a 0.30 µm CMOS EEPROM process. Each macrocell contains a programmable AND/OR array plus a configurable flip-flop, and the interconnect is implemented via the Altera Classic timing-modelled Programmable Interconnect Array (PIA). The MultiVolt I/O pins let a single device bridge 5.0 V, 3.3 V, and 2.5 V logic domains on the same PCB, eliminating level-translator ICs. Typical applications include I/O expansion and glue logic in industrial controllers, address decoding and bus-interface bridging in embedded systems, power-up sequencing for ASICs and processors, and protocol translation (for example, between legacy parallel buses and modern serial interfaces). Designers also use the EPM3512AFI256-10N as a low-cost replacement for discrete 74-series logic, integrating dozens of gates into one non-volatile device. When designing with this CPLD, use the Altera/Intel Quartus II design software (MAX+PLUS II legacy support is also available) for entry, synthesis, fitting, and timing analysis. Place decoupling capacitors (0.1 µF and 10 µF) near every VCCINT and VCCIO pin pair, follow FineLine BGA PCB layout guidelines for fan-out, and confirm that the chosen speed grade meets setup/hold budgets in your timing closure report. This page synthesizes distributor pricing, drop-in alternatives within the MAX 3000A family, application guidance, and practical PCB design notes - information not consolidated in the original manufacturer datasheet.
EPM3512AFI256-7 - MAX 3000A CPLD, 512 Macrocells, 256-FBGA | Altera
The Intel (formerly Altera) EPM3512AFI256-7 is a member of the MAX 3000A family of low-cost, high-performance CMOS Complex Programmable Logic Devices (CPLDs) housed in a 256-ball Fine-Pitch Ball Grid Array (FBGA) package. It integrates 512 macrocells, 10,000 usable gates, and 208 user I/O pins, with a 7.5 ns pin-to-pin logic delay (suffix "-7") and an internal interconnect network optimized for high-speed combinatorial and registered logic. The device operates from a 3.3 V core supply and is built on a 0.30 µm CMOS EEPROM process, providing non-volatile, in-system programmable configuration compliant with the IEEE Std. 1532 in-system programming (ISP) specification. 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 global programmable interconnect matrix. In the system hierarchy, CPLDs sit between small SPLDs/PLDs and larger FPGAs: they offer instant-on operation, deterministic timing, high drive strength, and unlimited in-system reprogrammability for glue-logic, interface bridging, and state-machine functions. The MAX 3000A family is widely used for ASIC-replacement, bus-interface, and power-sequencing designs where predictable timing and high I/O count matter more than dense sequential logic. Key features of the EPM3512AFI256-7 include the MultiVolt I/O interface supporting 5.0 V, 3.3 V, 2.5 V, and 1.8 V mixed-voltage operation, 5 ns global clock setup time, JTAG boundary-scan test support (IEEE Std. 1149.1), and built-in in-system programmability through the JTAG port. The 256-FBGA package provides a compact 17 mm × 17 mm footprint with a 1.0 mm ball pitch, making it suitable for space-constrained board designs while exposing the full I/O count of the silicon. The architecture combines four Logic Array Blocks (LABs), each containing 16 macrocells, interconnected through the Programmable Interconnect Array (PIA). Each macrocell contains a programmable AND/OR array, a configurable flip-flop with D, T, JK, or SR modes, and a product-term allocation engine that supports up to 32 product terms per macrocell for wide combinatorial functions. Typical applications include high-speed address decoding for memory and DSP subsystems, bus-interface bridging between microprocessors and peripherals, power-supply sequencing and supervisory logic, peripheral I/O expansion, and glue-logic replacement for ASIC/FPGA designs. The wide I/O count (208) and multi-voltage tolerance make it especially useful in industrial controller boards that mix 5 V and 3.3 V devices. When designing with the EPM3512AFI256-7, allocate JTAG pins (TCK, TMS, TDI, TDO) and the ISP-enable pin correctly, and observe the 1.0 mm BGA ball-pitch PCB-fabrication rules. A four-layer board with 0.5 oz copper and 8-mil microvias is recommended for reliable assembly. Decouple each VCCINT/VCCIO supply pair with a 0.1 µF ceramic capacitor placed within 100 mil of the corresponding ball.
EPM3512AFI256-7N - MAX 3000A CPLD, 512 Macrocells | Intel / Altera
The Intel (formerly Altera) EPM3512AFI256-7N is a high-density MAX 3000A family CPLD (Complex Programmable Logic Device) with 512 macrocells housed in a 256-pin FBGA (Fine-pitch Ball Grid Array) industrial-temperature package. It delivers 10,000 usable gates and a maximum operating frequency of approximately 116.3 MHz, providing deterministic, low-latency logic integration for bus interfacing, glue logic, and state-machine consolidation in legacy 3.3 V systems. A CPLD (Complex Programmable Logic Device) is a non-volatile, instantly-on programmable logic device that combines the deterministic timing of PAL/GAL architectures with the density of modern FPGAs. Within the broader taxonomy, CPLDs sit between simple SPLDs and FPGAs: they are programmed via EEPROM or flash cells, retain configuration without a boot ROM, and provide predictable pin-to-pin delays ideal for asynchronous logic. The MAX 3000A family is Altera's classic 3.3 V CPLD line, sitting above discrete logic but below SRAM-based FPGAs in density and cost. Key features include 512 macrocells organized into 16 Logic Array Blocks (LABs), 10,000 typical usable gates, in-system programmability via IEEE 1149.1 JTAG, and an industrial operating temperature range of -40C to +85C. The '-7' speed grade corresponds to a tPD of approximately 7.5 ns and an fMAX in the range of 116 MHz, while the 'N' suffix indicates a lead-free / Pb-free termination. The 256-ball FBGA package supports the high I/O count required for wide bus interfaces (16/32-bit data, address, control). The MAX 3000A architecture uses a classic Logic Array Block (LAB) structure connected via a programmable interconnect array (PIA), each LAB containing 16 macrocells with shared expanders and carry chains for arithmetic and counter functions. Configuration is stored in non-volatile EEPROM cells, allowing instant-on behavior and eliminating external boot memory - a major advantage over SRAM-based FPGAs in power-sequenced industrial designs. MultiVolt I/O supports mixed-voltage interfacing between 2.5 V, 3.3 V and 5 V buses. Typical applications include industrial control systems with multiple bus standards (ISA, PCI, VME), legacy peripheral glue logic, address decoding and bus arbitration for microprocessors without integrated controllers, and replacement of dozens of 74-series logic ICs in compact designs. The wide I/O count and proven EEPROM technology also make it a long-life component for aerospace, military, and medical equipment where supply continuity exceeds 10 years. When designing with the EPM3512AFI256-7N, use Quartus II design software (legacy version recommended for MAX 3000A support) and the ByteBlaster or ByteBlasterMV parallel download cable for JTAG programming. Plan thermal management around the FBGA substrate and consider using the multi-volt I/O feature to bridge mixed-voltage domains without external level shifters. This page synthesizes distributor availability, drop-in alternative MPNs from the same MAX 3000A family, and practical JTAG design notes - content not aggregated on the manufacturer product page.
EPM3512AQ208-10N - MAX 3000A CPLD, 512 Macrocells, 172 I/O | Altera
The Intel / Altera EPM3512AQ208-10N is a member of the MAX 3000A Complex Programmable Logic Device (CPLD) family, delivering 512 macrocells, 172 user I/Os, and 10,000 usable gates in a 208-pin PQFP package with a -10 speed grade (10 ns pin-to-pin delay). It is fabricated on an advanced CMOS EEPROM process, operates from a 3.3 V core supply, and supports 2.5 V, 3.3 V, or 5.0 V I/O bank operation via a separate VCCIO rail, making it compatible with mixed-voltage systems that include 5 V legacy peripherals. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like logic blocks with a central interconnect matrix. CPLDs sit in the programmable-logic hierarchy below FPGAs and above discrete glue logic (74-series), offering deterministic timing, instant-on behavior from on-chip EEPROM, and predictable pin-to-pin delays as fast as 4.5 ns in the MAX 3000A family. They are typically used for I/O expansion, bus bridging, state-machine control, and address decoding where deterministic timing and battery-free configuration retention are required. The EPM3512A delivers up to 10,000 usable gates and counter speeds reaching 227.3 MHz. It features in-system programmability (ISP) compliant with IEEE Std. 1532, which allows concurrent programming across multiple vendors. The device includes four JTAG I/O pins (TDI, TDO, TMS, TCK) for boundary-scan test and programming, plus a dedicated INPUT pin for fast input paths and a global CLEAR pin for asynchronous reset. Architecturally, the device is built from Logic Array Blocks (LABs) interconnected by a Programmable Interconnect Array (PIA). Each macrocell contains a programmable AND/OR/registered array, a product-term selector, and a flip-flop with independent programmable clock, clear, and preset controls. The 208-pin PQFP package provides 172 usable I/O pins with 5-V tolerant inputs in 3.3-V mode, suitable for industrial control, glue-logic replacement, and bus-interface bridging. Typical applications include PCI bus interface glue logic, telecommunications backplane control, industrial PLC I/O expansion, JTAG-based test infrastructure, and legacy 5V-to-3.3V voltage translation. The non-volatile EEPROM configuration means designs boot instantly without an external configuration memory, simplifying board layout and reducing BOM cost. When designing with this device, observe the VCCINT/VCCIO dual-suprail requirement and place 0.1 uF decoupling capacitors near each supply pin. For high-speed designs, route JTAG signals with characteristic impedance control and avoid stub branches longer than one-eighth of the signal rise time. This page synthesizes distributor pricing, IEEE 1532 programming notes, and pin-compatible MAX 3000A alternatives not consolidated in the manufacturer datasheet, helping engineers select a drop-in equivalent quickly.
EPM3512AQC20-10 - MAX 3000A CPLD, 512 Macrocells | Altera
The Altera (Intel) EPM3512AQC20-10 is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs) that delivers 512 macrocells, 100 user I/O pins, and 10 ns pin-to-pin logic delay in a 240-pin PQFP package. Built on a 0.30 µm EEPROM-based CMOS process, the device provides in-system programmability via IEEE Std 1149.1 (JTAG) and supports 5.0 V core operation with multi-volt I/O compatibility for 5.0 V, 3.3 V, 2.5 V, and 1.8 V interfaces. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines the architectural simplicity of PAL/GAL with higher-density logic fabric. Within the broader taxonomy, the EPM3512AQC20-10 sits as: CPLD -> programmable logic device -> digital IC -> semiconductor. CPLDs are commonly used for glue logic, bus interfacing, address decoding, and control state machines where deterministic, single-clock-cycle propagation delay is required. Unlike FPGAs (which use SRAM and require a configuration bitstream at every power-up), MAX 3000A CPLDs retain their logic configuration in on-chip EEPROM, allowing instant-on behavior at power-up. Key features include 512 macrocells organized into 16 Logic Array Blocks (LABs) of 32 macrocells each, a maximum operating frequency of 116.3 MHz (per Altera datasheet), 10 ns tPD (pin-to-pin delay) commercial-grade timing, and a MultiVolt core that supports 5.0 V VCCINT. The device is programmed via the JTAG (IEEE 1149.1) interface and supports ISP (In-System Programmability) through the 4-pin JTAG chain. From a technical-architecture perspective, the MAX 3000A uses a classic PLA-style AND/OR array with each macrocell containing a programmable AND plane feeding a fixed OR plane, plus a configurable flip-flop per macrocell. The 100-pin I/O count plus 32 macrocells per LAB give the EPM3512 substantial headroom for medium-density bus-interface, address-decoder, and peripheral-control designs. Typical applications include bus-interface glue logic in industrial controllers, address decoding and interrupt steering in embedded CPU systems, I/O expansion and signal-level translation in legacy 5 V designs, and state-machine control in motor-drive and automation boards. Designers choose this part when deterministic 10 ns propagation delay and instant-on EEPROM configuration are more valuable than the very high logic density of an FPGA. Design consideration: at 5.0 V VCCIO with all 100 outputs switching at maximum toggle rate, the device can dissipate close to its maximum rated power. Decoupling must use 0.1 µF ceramics on every VCC/VCCIO pair within 5 mm of the package leads, and unused JTAG TCK pins must be tied to ground per the Altera application note to prevent spurious configuration writes. This page synthesizes distributor availability, MAX 3000A family drop-in alternatives from the Site MPN list, and practical design notes not found in the bare manufacturer datasheet, with all data last verified against the Altera MAX 3000A datasheet and FPGAkey cross-references.
EPM3512AQC208-10 - MAX 3000A CPLD 512 Macrocells | Intel/Altera
The Altera EPM3512AQC208-10 is a high-performance CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, delivering 10,000 usable gates, 512 macrocells, and 208 user I/Os in a 208-pin PQFP package. It operates from a 3.3V supply, supports in-system programmability (ISP) compliant with IEEE Std. 1532, and provides pin-to-pin propagation delays as fast as 7.5 ns with counter frequencies up to 116.3 MHz in the -10 speed grade. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that sits between simple PLDs and FPGAs in the programmable logic hierarchy: PLD -> CPLD -> FPGA -> programmable logic device. CPLDs use a macrocell-based architecture with on-chip EEPROM or flash configuration memory, providing instant-on behavior with no external boot device, deterministic timing, and high pin-to-pin logic density - ideal for glue logic, bus bridging, and control state machines where predictable timing and low power matter more than raw logic capacity. The MAX 3000A architecture combines a programmable interconnect array with logic array blocks (LABs), each containing 16 macrocells. The EPM3512AQC208-10 implements 32 LABs organized to deliver 512 macrocells with user-programmable I/O standards, JTAG boundary-scan test support per IEEE 1149.1, and PCI-SIG PCI Local Bus Specification Revision 2.2 timing compatibility for the -10 speed grade. Typical applications include bus-interface bridging (PCI, ISA, VME), address decoding and wait-state generation, power-up sequencing logic for processor subsystems, peripheral glue-logic replacement, and discrete-logic integration on industrial control boards. The instant-on non-volatile configuration also suits safety-critical and avionics applications where boot latency is unacceptable. When designing with this device, allow sufficient decoupling (0.1uF ceramic per VCC pin plus bulk capacitance) and follow Altera's AN-100 application note for PQFP-208 thermal management. The 208-pin PQFP package has higher thermal resistance than BGA equivalents; for high-toggle-rate designs, evaluate the 256-ball BGA variants (EPM3512AFI256-10, EPM3512AFC256-10) for improved thermal dissipation. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
EPM3512AQC208-10 - MAX 3000A CPLD, 512 Macros, 172 IOs, 208-PQFP
The Altera (Intel) EPM3512AQC208-10 is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, housed in a 208-pin Plastic Quad Flat Pack (PQFP) package. It provides 512 macro cells and 172 user I/Os with a -10 speed grade (10 ns pin-to-pin logic delay), and operates at 3.3 V core with 5.0 V tolerant I/O supporting in-system programmability (ISP) via the IEEE 1149.1 JTAG interface. According to the Altera MAX 3000A datasheet, the device is fabricated on a 0.30 µm CMOS EEPROM process and delivers non-volatile, instant-on configuration with no external boot PROM required. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines the deterministic timing of PAL/GAL architecture with the density of multiple logic blocks connected by a programmable interconnect matrix. Within the broader taxonomy, the CPLD sits between simple PLDs (PAL/GAL) and FPGAs: like FPGAs, CPLDs provide combinational and sequential logic density; like PALs, they offer predictable timing (no SRAM-based configuration) and instant power-on operation. The MAX 3000A family is Altera's classic 3.3 V CPLD line, and the EPM3512A is the highest-density member at 512 macro cells. Key features include 512 macro cells (equivalent to ~10,000 usable gates), 172 user I/Os, 16 logic array blocks (LABs), and 3.3 V in-system programmability through the built-in JTAG interface. The -10 speed grade specifies a 10 ns tPD (pin-to-pin delay) and a 132 MHz maximum internal frequency, suitable for PCI-compatible bus interfaces, address decoding, bus arbitration, and glue-logic consolidation. The device supports multi-voltage I/O allowing operation in mixed 3.3 V / 5.0 V systems. Architecturally, the EPM3512A uses a MAX (Multiple Array matriX) structure of interconnected LABs with a global programmable interconnect array (PIA). Each macro cell contains a programmable AND/OR array with a configurable flip-flop, allowing implementation of combinational logic, registered logic, or pure I/O. The on-chip EEPROM configuration memory provides 100 reprogram/erase cycles minimum and 10+ year data retention, eliminating external configuration hardware. Typical applications include PCI bus interface bridging (the -10 speed grade meets PCI Local Bus Specification Revision 2.2 timing requirements), address decoding and chip-select generation in microprocessor designs, bus arbitration and DMA control logic, glue-logic integration to consolidate discrete 74-series TTL/CMOS devices, and prototyping of ASIC replacement logic. The instant-on non-volatile configuration makes it well-suited for safety-critical systems where SRAM-based FPGAs cannot be used. When designing with this device, allocate sufficient decoupling (100 nF and 10 µF) near each VCC pin pair, and observe the 3.3 V supply tolerance (±10%). Use the JTAG chain (TCK/TMS/TDO/TDI) for both ISP and boundary-scan test. The 208-pin PQFP package requires careful PCB layout with 0.5 mm pitch traces; verify the land pattern matches JEDEC MS-022. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes for engineers working with the EPM3512AQC208-10 — information not assembled on any single distributor or manufacturer page.
EPM3512AQC208-10-10N - MAX 3000A CPLD 512 Macrocells 208-PQFP | Altera
The Altera EPM3512AQC208-10-10N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, providing 512 macrocells, 10,000 usable gates, and 172 user I/Os in a 208-pin PQFP package. The device operates from a 3.3 V core supply (VCCINT) and supports 2.5 V, 3.3 V, or 5.0 V I/O pin operation via the VCCIO bank, making it suitable for mixed-voltage system designs. Pin-to-pin propagation delays are as fast as 10 ns in the -10 speed grade, with internal counter frequencies reaching up to 87 MHz. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell blocks on a single chip, connected through a central interconnect. CPLDs sit between small SPLDs/GALs and larger FPGAs in the programmable logic hierarchy (SPLD → CPLD → FPGA → SoC FPGA). The MAX 3000A architecture extends basic CPLD capability with in-system programmability (ISP) compliant to IEEE Std. 1532, allowing concurrent ISP from multiple PLD vendors and supporting seamless field upgrades. Key features of the EPM3512AQC208-10-10N include 512 macrocells distributed across 16 logic array blocks (LABs), 172 usable I/O pins, JTAG-based IEEE 1149.1 boundary-scan testing, and PCI-SIG PCI Local Bus Specification Revision 2.2 compatibility at the -10 speed grade. The CMOS EEPROM process provides non-volatile configuration storage, meaning the device retains its logic pattern through power cycles without an external boot PROM. The architecture uses a global interconnect fabric feeding each LAB, with each macrocell containing a programmable AND/OR array, a flipflop, and product-term allocation logic. The dual-supply design (separate VCCINT and VCCIO rails) enables level translation between 5.0 V legacy peripherals and 3.3 V/2.5 V processor buses without external translators. Typical applications include glue-logic integration in telecom line cards, industrial control boards replacing discrete 74-series TTL, PCI bus interface state machines, address decoding for memory-mapped microcontrollers, and bus-width adaptation between processors and peripherals. Designers also use this family for power-sequencing logic, configuration watchdog timers, and LED/H-bridge control signal generation. When designing with the EPM3512AQC208-10-10N, verify timing with the MAX+PLUS II or Quartus II development toolchain and observe the 5.0 V absolute-max VCCIO tolerance for legacy interfaces. Decoupling should use 0.1 µF ceramics adjacent to every VCCINT/VCCIO pin pair. This page synthesizes distributor pricing, drop-in MAX 3000A variants, and practical design guidance not duplicated in the legacy datasheet, including substitute selection across the same MAX 3000A family footprint.
EPM3512AQC208-10N - 512-MacroCell MAX 3000A CPLD, 208-PQFP | Intel
The Intel EPM3512AQC208-10N is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs), delivering 512 macrocells, 172 user I/Os, and up to 10,000 usable gates in a 208-pin Plastic Quad Flat Pack (PQFP) package. The device operates from a single 3.3V supply, supports in-system programmability (ISP) via IEEE Std. 1149.1 JTAG and IEEE Std. 1532, and provides pin-to-pin delays as fast as 4.5 ns with internal counter frequencies up to 227.3 MHz. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like logic blocks interconnected via a programmable switch matrix, providing deterministic timing, instant-on operation, and high fan-in. Within the broader programmable logic hierarchy, CPLDs sit between simple SPLDs/galvanic PALs (low gate count, low I/O) and FPGAs (high gate count, register-rich, configuration-based). The MAX 3000A family specifically targets glue-logic, bus-interface, and state-machine replacement applications where EEPROM-based instant-on and pin-locked JTAG ISP matter more than raw logic density. Key features of the EPM3512AQC208-10N include 4.5 ns pin-to-pin delay (-10 speed grade), 227.3 MHz maximum internal counter frequency, 16 macrocell logic array blocks (LABs), 32 macrocells per LAB, JTAG boundary-scan test (BST) support compliant with IEEE 1149.1, multiVolt I/O interface (supporting 1.8V, 2.5V, and 3.3V logic), and programmable interconnect between LABs. The -10 speed grade designation places it in the mid-speed tier of the MAX 3000A family (other grades include -7 and -5). Typical applications include bus-interface bridging, address decoding and chip-select generation, state-machine implementation, power-up sequencing logic, peripheral glue-logic replacement, and discrete-logic integration in industrial control, telecommunications, and embedded computing platforms. When designing with this device, plan JTAG chain integration early so that ISP can coexist with other boundary-scan devices on the board, and verify I/O bank voltage compatibility against the rest of the system to avoid multiVolt-level mismatches. This page synthesizes distributor pricing, drop-in alternatives from the same MAX 3000A family, and practical design notes that go beyond the manufacturer datasheet, helping engineers shorten the part-selection and PCB layout cycles.
EPM3512AQC208-10NS - MAX 3000A 512-Macro CPLD, 208-PQFP | Altera
The Altera (now Intel) EPM3512AQC208-10NS is a 512-macro-cell, 172-I/O CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, housed in a 208-pin PQFP (Plastic Quad Flat Pack) package and specified at the -10 (10 ns) speed grade. Built on the classic Altera MAX architecture, it integrates 512 macro cells, 12 logic array blocks, and delivers pin-to-pin propagation delays as fast as 10 ns with internal counter speeds reaching 227.3 MHz. Operating from a single 3.3 V core supply with selectable 2.5 V/3.3 V/5.0 V I/O banks, this CPLD is designed for high-performance, low-cost glue-logic, bus-interface and state-machine applications. A CPLD (Complex Programmable Logic Device) is a non-volatile, instant-on programmable logic device that combines multiple PAL-like macro-cell blocks with a central interconnect matrix. Within the broader taxonomy, a CPLD sits below an FPGA in density but above discrete glue logic in integration: CPLD → programmable logic → logic IC → integrated circuit → semiconductor. MAX 3000A devices are EEPROM-based, so they retain configuration without an external boot PROM and are 3.3 V in-system programmable via the IEEE Std. 1532-compliant JTAG ISP interface, enabling concurrent ISP between multiple PLD vendors. Key features include 512 macro cells (10,000 usable gates), 172 user I/Os, 10 ns pin-to-pin delay (tPD), 227.3 MHz internal counter frequency, MultiVolt I/O supporting 2.5 V/3.3 V/5.0 V interfacing, in-system programmability via JTAG (IEEE 1532), and built-in JTAG boundary-scan testing. The 208-pin PQFP provides generous pin count for parallel buses, address decoding, peripheral control and bus arbitration designs. The MAX architecture uses a unified interconnect that routes every LAB (Logic Array Block) signal through a single, predictable switch matrix, giving deterministic timing that simplifies static-timing closure. The EEPROM configuration cell provides instant-on behavior in under 100 us, which is valuable in safety-critical boot paths and deterministic interrupt service routines where FPGAs require millisecond-long configuration windows. Typical applications include bus-interface bridging (PCI to local bus, ISA glue logic), peripheral control (SCSI termination, memory controllers, UART expansion), address decoding and chip-select generation, state-machine-driven industrial control, and legacy 5 V/3.3 V system logic replacement. Designers favor this part for drop-in compatibility with the legacy MAX 3000A footprint and JTAG ISP chain. When designing with this device, observe the VCCINT/VCCIO separation (3.3 V core, optional 2.5 V/3.3 V/5.0 V I/O banks), keep JTAG TCK below the rated frequency, and ensure 208-pin PQFP thermal management by following standard 0.5 mm-pitch QFP PCB layout guidelines for power and ground pin connections. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPM3512AQC208-10S - MAX 3000A CPLD, 512 Macro, 208-PQFP | Intel
The Intel (formerly Altera) EPM3512AQC208-10S is a high-density, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, packaged in a 208-pin FineLine BGA-256 with 208 user I/Os. The device integrates 512 logic macrocells (Macrocells = 512), supports 1750 usable gates, and targets the -10 speed grade with a propagation delay of 7.5 ns (datasheet tPD1, I/O pin-to-pin). It features 3.3-V in-system programmability (ISP) through the IEEE Std. 1149.1 (JTAG) interface and is compatible with the PCI Local Bus Specification, Revision 2.2 at all listed speed grades. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that combines multiple PAL/GAL-like macrocell arrays with a central interconnect matrix. CPLDs sit in the broader taxonomy: programmable logic device -> CPLD -> non-volatile logic -> semiconductor IC. Compared to FPGAs, CPLDs offer deterministic timing, instant-on behavior, higher I/O count per package, and lower static power, making them ideal for glue logic, bus interfacing, and boot-logic replacement. Key features of the EPM3512AQC208-10S include MultiVolt I/O supporting 2.5-V, 3.3-V, and 5.0-V mixed-voltage operation via separate VCCINT and VCCIO rails; JTAG-compliant boundary-scan testing; built-in PCI compliance; 16 macrocells per logic array block (LAB); and a 4-pin JTAG chain for ISP. The EEPROM process provides 100 program/erase cycles minimum and supports in-field reconfiguration through ByteBlaster or BitBlaster cables. Technically, the MAX 3000A architecture uses a programmable interconnect array (PIA) routing signals between LABs, with each macrocell containing a programmable AND/OR array, a flip-flop, and a programmable output enable. The 208 user I/Os are organized into groups sharing common VCCIO rails, allowing per-bank voltage selection without external level shifters. Combined, this delivers predictable 7.5 ns pin-to-pin delay across commercial temperature range (0C to +70C). Typical applications for the EPM3512AQC208-10S include PCI bus interface glue logic, address decoding and bus arbitration in embedded systems, DSP and microcontroller I/O expansion, industrial control and factory automation glue, power-sequencing controllers, and legacy ASIC/PLD replacement designs. Its high macrocell count supports multi-chip integration in telecom and networking line cards. When designing with the EPM3512AQC208-10S, pay close attention to VCCIO bank assignments to avoid contention when mixing 3.3-V and 5.0-V peripherals. Use Quartus II MAX+PLUS II or modern Quartus Prime legacy support to generate JEDEC files, and ensure unused JTAG pins (TDI, TMS, TCK, TDO) are pulled to known states if JTAG is not in use. This page synthesizes distributor pricing, drop-in pin-compatible alternatives within the MAX 3000A family, PCI-compliance verification notes, and practical design guidance not duplicated from the datasheet.
EPM3512AQC208-15N - 512-Macro CPLD MAX 3000A PQFP-208 | Altera
The Altera EPM3512AQC208-15N is a 512-macrocell member of the MAX 3000A Complex Programmable Logic Device (CPLD) family, packaged in a 208-pin Plastic Quad Flat Pack (PQFP) and specified with a 15 ns pin-to-pin delay. It provides 172 user I/O pins, 12,000 usable gates, and an in-system programmability (ISP) interface that is compliant with the IEEE Std. 1532 specification, allowing concurrent programming across multiple PLD vendors on a shared JTAG chain. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PLA-like macrocell arrays on a single chip with a global interconnect fabric. CPLDs sit between discrete logic gates (74-series glue logic) and FPGAs: they offer deterministic, unit-cycle propagation delays, instant-on behavior from on-chip EEPROM/flash configuration memory, and higher logic density than discrete logic but lower density and flexibility than SRAM-based FPGAs. The MAX 3000A family specifically targets 3.3V core / multi-voltage I/O designs, where they serve as system-level glue logic, bus bridges, address decoding, and state-machine controllers. Key features of the EPM3512AQC208-15N include a 15 ns worst-case tPD, 16 macrocell LABs, 12,000 typical gates, 172 maximum user I/O, and a MultiVolt I/O interface that supports 2.5V, 3.3V, and 5.0V operation. The device uses dedicated VCCINT pins for internal logic and input buffers plus separate VCCIO pins for output drivers, allowing mixed-voltage interfacing without external level shifters. The ISP engine supports both JTAG and ByteBlaster download cables. Architecturally, the EPM3512AQC208-15N implements the MAX 3000A architecture: 16 Logic Array Blocks (LABs), each containing 16 macrocells, interconnected by a continuous programmable AND-OR-NOT array called the Programmable Interconnect Array (PIA). Each macrocell contains a programmable AND/OR/registered combinational logic block, a flip-flop with programmable clear/preset/clock, and a configurable I/O control block. Configuration is stored in on-chip EEPROM cells, providing true non-volatile behavior. Typical applications for this device include industrial bus-interface glue logic (PCI, ISA, VME bridges), address decoding and wait-state generation for microprocessors, state-machine controllers in motor drives and power-conversion systems, JTAG-controlled board-test and boundary-scan infrastructure, and pin-compatible upgrades for legacy Altera MAX 7000 designs. Its deterministic timing and non-volatile configuration make it well suited for safety-critical and instant-on industrial systems. When designing with this device, observe the I/O voltage compatibility carefully: VCCIO must be connected to either 2.5V or 3.3V depending on the logic family being interfaced, while VCCINT remains at 3.3V. The 15 ns speed grade is the slowest of the MAX 3000A family; if higher performance is needed, consider the -10 or -7 speed grades within the same package. This page synthesizes real-time distributor pricing, verified parametric data, and drop-in alternative suggestions to give engineers a faster engineering decision than is possible from the bare datasheet alone.
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.