FPGA & CPLD
Products (6352)
EPM3032ALC44-4N - MAX 3000A CPLD, 32 Macrocells, 44-PLCC | Intel
The Intel (formerly Altera) EPM3032ALC44-4N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, delivering 32 macrocells and 34 user I/O pins in a 44-pin Plastic Leaded Chip Carrier (PLCC) J-lead package. It features 4.5-ns pin-to-pin logic delays, counter frequencies of up to 227.3 MHz, and a 3.3-V core supply with MultiVolt I/O supporting 5.0-V, 3.3-V, and 2.5-V logic levels on output buffers. A CPLD (Complex Programmable Logic Device) is a non-volatile, flash/EEPROM-backed programmable logic device used to implement glue logic, interface bridging, bus decoding, and state-machine control in digital systems. The MAX 3000A family sits in the hierarchy below FPGAs in terms of logic density but above discrete 74-series logic in terms of integration and design flexibility, making it ideal for low-density, deterministic logic replacement where instant-on non-volatile configuration is required. Key features of the EPM3032ALC44-4N include 600 usable gates, 2 Logic Array Blocks (LABs), in-system programmability (ISP) through the built-in IEEE Std. 1149.1 JTAG interface, and ISP compliance with IEEE Std. 1532 for multi-vendor concurrent programming. The MultiVolt I/O architecture uses separate VCCINT (internal/3.3 V) and VCCIO (I/O driver) pins, allowing mixed-voltage interfacing with 5.0-V, 3.3-V, or 2.5-V peripherals on the same die without external level shifters. The MAX 3000A architecture combines a programmable interconnect array with EEPROM-backed macrocells, providing non-volatile configuration that retains state across power cycles without an external boot PROM. The 4.5-ns tPD (pin-to-pin delay) and 227.3 MHz fCNT translate to deterministic timing suitable for asynchronous logic replacement, address decoding, and high-speed control plane tasks in telecom, industrial, and computing systems. Typical applications include peripheral bus interfacing (PCI, ISA, and proprietary buses), address decoding for memory and I/O subsystems, state-machine implementation for ASIC/FPGA replacement, power-up sequencing control, and JTAG-based board-level testing. Designers frequently select the EPM3032ALC44-4N when a small, deterministic, non-volatile logic block is needed in a legacy 44-pin PLCC footprint. When designing with this device, ensure proper decoupling on VCCINT and VCCIO rails and confirm JTAG chain termination per IEEE 1149.1. The 4.5-ns speed grade is best chosen when the design requires maximum counter frequency; the slower -7, -10, or -15 grades in the same package offer cost savings for less timing-critical logic. This page synthesizes distributor pricing, verified drop-in alternatives, and practical PLCC-layout design notes not found in the manufacturer datasheet alone.
EPM3032ALC44-7 - 32-Macrocell CPLD, 7.5ns, 44-PLCC | Altera
The Altera EPM3032ALC44-7 is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, delivering 600 usable system gates, 32 macrocells, and 34 user I/O pins in a 44-pin Plastic Leaded Chip Carrier (PLCC) package with J-lead surface-mount terminations. It operates from a single 3.3 V supply and provides in-system programmability (ISP) through the built-in IEEE Std. 1149.1 JTAG interface, enabling board-level configuration and boundary-scan test without removing the device from the circuit. The "-7" speed grade corresponds to a 7.5 ns pin-to-pin logic delay (tPD1) and a maximum operating frequency of 138.9 MHz, which makes it suitable for glue-logic, interface bridging, and state-machine applications that require deterministic sub-10 ns response. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple SPLDs/PLAs and large FPGAs in the programmable logic hierarchy: SPLD -> CPLD -> FPGA. Unlike SRAM-based FPGAs, CPLDs use on-chip EEPROM or flash to store configuration, so they power up instantly without an external boot PROM. The MAX 3000A architecture is organized into Logic Array Blocks (LABs) interconnected by a programmable interconnect array (PIA); each macrocell contains a product-term AND/OR array plus a programmable flip-flop. This product-term architecture gives CPLDs their signature deterministic timing and predictable fan-out delay, which is why CPLDs remain preferred for address decoding, bus arbitration, and reset distribution. Key features of the EPM3032ALC44-7 include 32 macrocells across 2 LABs, 34 usable I/O pins, 2 global clock networks, 3.3 V core and I/O supply with 5.0 V tolerant I/O pins, JTAG (IEEE 1149.1) ISP, open-drain or programmable pull-up I/O options, and a commercial 0 to 70 °C operating temperature grade. The MAX 3000A family supports MultiVolt I/O that can interface with 5.0 V, 3.3 V, and 2.5 V logic without level shifters, simplifying mixed-voltage designs. Typical applications include address decoding and chip-select generation in microprocessor and microcontroller systems, bus arbitration logic for PCI, ISA, and VME backplanes, glue-logic consolidation that replaces multiple 74-series TTL/CMOS gates, state-machine controllers for peripherals and motor drives, and reset / watchdog sequencing for multi-rail power systems. The 7.5 ns propagation delay supports synchronous designs up to roughly 60 MHz externally and 138.9 MHz fMAX internally. When designing with this part, reserve one of the four JTAG pins (TDI, TDO, TMS, TCK) in your schematic even if in-system programming is not used in production - these pins must not be left floating, or the JTAG state machine may latch into an undefined state. Place a 0.1 µF decoupling capacitor within 5 mm of each VCC pin and a bulk 10 µF tantalum capacitor near the supply entry point. Unused I/O pins should be left floating; do not externally pull them up or down, as this can conflict with the JTAG boundary-scan pull-ups during programming. This page synthesizes distributor pricing, drop-in same-package alternatives from the MAX 3000A family, and practical design notes not collected in the manufacturer datasheet.
EPM3032ALC44-7N - 32-Macrocell 7.5ns CPLD | Altera MAX 3000A
The Altera (Intel) EPM3032ALC44-7N is a 32-macrocell, 7.5 ns pin-to-pin delay member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), housed in a 44-pin Plastic Leaded Chip Carrier (PLCC) package with J-leads. It provides 600 usable gates, in-system programmability via IEEE 1149.1 JTAG, and operates from a 3.0 V to 3.6 V single supply. The -7 speed grade corresponds to a 7.5 ns maximum propagation delay (tPD1) and a 227.3 MHz maximum internal counter frequency (fCNT), making it suitable for glue-logic, address decoding, bus interfacing, and state-machine replacement tasks in 3.3 V digital systems. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macrocell arrays on a single chip with a programmable interconnect matrix. CPLDs sit in the programmable logic hierarchy between simple SPLDs (PALs/GALs) and higher-density FPGAs; they offer deterministic timing, instant-on operation from on-chip EEPROM/Flash, and typically 32 to 512 macrocells. The MAX 3000A family is one of Altera's classic 3.3 V CPLD lines, predating the later MAX II/MAX V families, and is widely used as a low-density "glue logic" replacement for multiple discrete 74LS/74HC TTL parts. Key features include 32 macrocells, 34 usable I/O pins (out of 44 total package pins), 4 dedicated inputs, in-system programmability through the built-in JTAG (IEEE Std 1149.1) interface, and a MultiVolt core that allows the I/O banks to interface with 1.8 V, 2.5 V, 3.3 V, and 5.0 V mixed-voltage devices. The device is fabricated on a CMOS EEPROM process, ensuring 100 program/erase cycles of reprogrammability and zero standby power retention. The 44-pin J-lead PLCC package gives a robust through-hole-style socket mount compatible with production programming sockets. The MAX 3000A architecture uses a Logic Array Block (LAB) of 16 macrocells with a Programmable Interconnect Array (PIA) that provides deterministic, predictable timing — a 7.5 ns tPD is guaranteed regardless of routing density. Each macrocell contains a programmable AND/OR array with a configurable flip-flop that can emulate D, T, JK, or SR flip-flops. This deterministic timing and instant-on non-volatile configuration distinguish CPLDs from SRAM-based FPGAs in applications where boot-time predictability is critical. Typical applications include 3.3 V glue-logic replacement for multiple 74-series TTL gates, address decoding for microprocessors and DSPs, bus arbitration logic in microcontroller systems, power-up sequencing controllers, LED display multiplexing drivers, and state-machine controllers in industrial control boards. The wide MultiVolt I/O also makes the EPM3032ALC44-7N useful as a level shifter between 5 V peripherals and 3.3 V cores. When designing with this device, plan for one JTAG chain entry point (TCK/TMS/TDI/TDO plus TRST) for ISP, and connect all unused I/O pins to defined logic levels (GND or VCCIO) to minimize quiescent current. Use Altera's Quartus II design software (or MAX+PLUS II for legacy projects) for design entry, fitting, and JEDEC file generation. This page synthesizes distributor pricing, drop-in MAX 3000A alternatives (different speed grades), and practical design notes not found on a single manufacturer datasheet page.
EPM3032ALI44-10N - MAX 3000A CPLD 32 Macrocells 44-PLCC | Altera
The Altera EPM3032ALI44-10N is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs) built on the classic MAX architecture, offered in a 44-pin J-lead PLCC (PLCC-44) package. It provides 32 macrocells, 34 usable I/O pins, and pin-to-pin logic delays as fast as 4.5 ns in the -10 speed grade, with internal counter frequencies reaching 227.3 MHz. The device operates from a 3.3 V core supply and supports MultiVolt I/O, allowing the I/O banks to interface with 5.0 V, 3.3 V, and 2.5 V logic levels. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macrocell blocks on a single chip with a central interconnect, providing glue-logic, interface-bridging, and bus-decoding functions in digital systems. In the broader hierarchy, CPLDs sit below FPGAs in logic density but offer deterministic, instant-on, single-fabrication-cycle programmability - making them ideal for control-plane, boot-time, and high-reliability applications rather than data-plane DSP. The MAX 3000A family was one of the most widely adopted 3.3 V CPLD lines of its era. Key features include 3.3 V in-system programmability (ISP) through the built-in IEEE Std. 1149.1 JTAG interface, full PCI-SIG compliance (Revision 2.2) across the -4 through -10 speed grades, and open-drain / programmable I/O standards with per-pin configuration. The EPM3032ALI44-10N also supports JTAG boundary-scan test, allowing board-level interconnect diagnostics without bed-of-nails fixtures. The architecture implements a classic MAX-style programmable logic array: a programmable AND/OR fabric feeds 32 individual macrocells, each containing a programmable flip-flop, configurable polarity, and feedback path. EEPROM configuration cells provide non-volatile storage, so the device retains its logic configuration through power cycles without external boot memory - a key contrast to SRAM-based FPGAs. Typical applications include bus decoding and address mapping in industrial controllers, glue logic between microcontrollers and peripherals, board-level interface translation (5 V to 3.3 V / 2.5 V), and PCI bridge designs. Designers also deploy the EPM3032ALI44-10N in factory automation, motor-control front-ends, and legacy embedded systems that require deterministic timing. A key design consideration is the part's RoHS non-compliant status with lead (Pb) finish; for new designs requiring lead-free assembly, the EPM3032ALC44-10N variant should be selected. Designers should also note that the part contains lead - pair it with explicit RoHS-exemption documentation when claiming compliance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing an actionable reference for both new designs and legacy system maintenance.
EPM3032ATC-44-10N - MAX 3000A CPLD, 32 Macrocells, 44-TQFP | Intel
The Intel (formerly Altera) EPM3032ATC-44-10N is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), delivering 600 usable gates, 32 macrocells, and 34 user I/O pins in a 44-pin TQFP package. It operates from a 3.3 V supply and provides pin-to-pin delays as fast as 10 ns with counter frequencies reaching 103.1 MHz, making it suitable for glue-logic, interface bridging, and state-machine replacement tasks in cost-sensitive designs. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like logic blocks on a single chip with a programmable interconnect matrix. Architecturally, CPLDs sit between simple SPLDs (like 22V10 PALs) and larger FPGAs, offering deterministic timing, instant-on operation, and high-drive I/O without external configuration memory. The MAX 3000A family is part of the broader programmable logic IC hierarchy: CPLD -> programmable logic -> logic IC -> integrated circuit -> semiconductor. Key features include In-System Programmability (ISP) compliant with IEEE Std. 1532, MultiVolt I/O supporting 1.8 V, 2.5 V, and 3.3 V interfaces, bus-friendly architecture with programmable slew-rate control, and an open-drain output option per pin for wired-OR control signaling. A programmable security bit protects proprietary designs, and a power-saving mode reduces macrocell current by more than 50% during idle periods. The device is fabricated on EEPROM-based CMOS technology, giving it instant-on behavior without external boot memory. Each macrocell contains a programmable AND/OR array with a configurable flip-flop, and the interconnect fabric provides uniform, deterministic delays across all 32 logic blocks - a key advantage over FPGAs for control-plane applications where timing predictability matters more than raw logic density. Typical applications include address decoding and bus interfacing in microcontroller systems, glue logic between ASICs and processors, configuration registers for FPGAs, motor control state machines, and general-purpose I/O expansion. The commercial (0C to +70C) operating range suits indoor and consumer electronics, while the 44-pin TQFP package enables compact PCB layouts with standard surface-mount assembly. When designing with this device, note that the -10 speed bin is the slower commercial offering; if you need higher performance, the -7 or -4 bins exist within the same family and are pin-compatible drop-in upgrades. Ensure your JTAG chain includes the 4-wire ISP header (TCK, TMS, TDI, TDO plus VCC/GND) for in-field reprogrammability. This page synthesizes distributor pricing, package-level alternatives, and practical design notes not consolidated in the manufacturer datasheet, including a side-by-side comparison of the EPM3032ATC44 speed grades and their thermal and timing trade-offs.
EPM3032ATC44-10 - 32-Macrocell 10ns CPLD 3.3V TQFP-44 | Altera
The Altera (now Intel) EPM3032ATC44-10 is a 32-macrocell, 600-gate CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, supplied in a 44-pin TQFP (Thin Quad Flat Pack) package with a 10 ns pin-to-pin propagation delay. The 'TC' suffix denotes the commercial operating temperature range, and the '-10' speed grade specifies the 10 ns tPD. The device is fabricated on advanced CMOS EEPROM technology and operates from a single 3.3 V supply (3.0 V to 3.6 V), delivering counter frequencies up to 227.3 MHz and supporting in-system programmability (ISP) through the built-in IEEE 1149.1 JTAG interface. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays interconnected by a programmable switch matrix. The MAX 3000A family sits between simple SPLDs/GALs and larger FPGAs, offering deterministic 10 ns timing, instant-on EEPROM configuration, and 100% tested fixed propagation delays. The 32 macrocells are organized into 2 Logic Array Blocks (LABs), each providing 16 macrocells with product-term logic, a programmable flip-flop, and fast I/O feedback. Key features include 34 user I/O pins, 600 usable gates, 10 ns maximum propagation delay, 4.5 ns global setup time, 227.3 MHz maximum internal frequency, JTAG boundary-scan test support, and multiVolt I/O for interfacing with 2.5 V, 3.3 V, or 5.0 V logic. The CMOS EEPROM process provides 100 erase/program cycles per reprogrammable cell, and the IEEE 1149.1 (JTAG) port enables in-system programming without removing the device from the PCB. The MAX architecture uses a uniform interconnect scheme in which every LAB connects to every other LAB through a single global FastTrack interconnect, eliminating routing bottlenecks and delivering the predictable 10 ns timing regardless of design placement. The 2.5 V internal core voltage (derived from an internal regulator) reduces dynamic power compared with 5 V CPLDs, while the multiVolt I/O pins can be driven from 1.8 V to 5.0 V sources. Typical applications include bus interface glue logic, address decoding, state-machine controllers, power-up sequencing, peripheral chip-select generation in 8051/ARM-based embedded boards, industrial control boards requiring instant-on non-volatile logic, JTAG-driven boundary-scan test chains, and pin-compatible logic replacement for legacy 22V10/16V8 SPLDs in upgrade paths. The 0 to 70°C commercial temperature range suits consumer, office, and industrial-instrumentation equipment. Design consideration: use the Altera MAX+PLUS II or Quartus II design tools to compile VHDL/Verilog/Schematic designs; verify that pin assignments respect the JTAG TMS/TCK/TDI/TDO dedicated pins (typically 27/30/28/29 on the 44-pin TQFP). Note that the MAX 3000A family has been moved to NRND/EOL status by Intel PSG — verify long-term availability before new designs.
EPM3032ATC44-10AA - 32-Macrocell 3.3V CPLD, 10ns, 44-TQFP | Intel
The Intel (formerly Altera) EPM3032ATC44-10AA is a 32-macrocell, 34-I/O Complex Programmable Logic Device (CPLD) from the MAX 3000A family, offering 600 usable gates, 10 ns pin-to-pin propagation delay, and 3.3 V in-system programmability through the IEEE Std. 1149.1 JTAG interface in a 44-pin TQFP package. The -10 speed grade provides a maximum propagation delay of 10 ns and counter frequencies up to 227.3 MHz, while the 'A' suffix denotes the 3.3 V core supply and the 'C' denotes the commercial 0C to +70C operating temperature range. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like logic blocks with a centralized interconnect matrix. CPLDs sit in the programmable logic hierarchy between simple SPLDs (PAL/GAL) and large FPGAs; they offer instant-on (zero-configuration) behavior, deterministic timing, and high-drive I/O. The MAX 3000A family uses EEPROM configuration cells, eliminating the need for external boot memory and supporting multi-vendor ISP per IEEE Std. 1532. Key features include 32 macrocells across 2 logic array blocks (LABs), 34 user I/O pins, 3.3 V core supply (VCCINT) with selectable 2.5 V/3.3 V/5.0 V I/O supply (VCCIO), an IEEE Std. 1149.1 JTAG boundary-scan test interface, and built-in ISP compliance per IEEE Std. 1532. The MAX architecture delivers predictable timing because routing paths through the programmable interconnect array (PIA) have fixed delays that do not depend on user logic placement. The MAX 3000A architecture employs a classic AND-OR-XOR macrocell with a product-term allocator, shared logic expanders, and a per-macrocell flip-flop with programmable clear, preset, and clock options. The EEPROM-based configuration is one-time programmable per logic cell, with ISP re-programmability through JTAG. The I/O structure is split: VCCINT powers the core and input buffers, VCCIO powers the output drivers, allowing mixed-voltage interfacing without external level shifters. The 44-pin TQFP package provides a compact 10 mm x 10 mm footprint for surface-mount designs. Typical applications include glue-logic integration in industrial controllers, address decoding and bus interfacing in embedded systems, state-machine replacement in motor control, I/O expansion for legacy microcontrollers, and JTAG-configured bus bridges. The instant-on behavior is valuable in safety-critical and deterministic-latency paths where FPGA configuration time is unacceptable. When designing with this part, observe the dual-supply requirement: VCCINT must be 3.3 V, while VCCIO can be tied to 2.5 V, 3.3 V, or 5.0 V depending on the interface voltage of the connected devices. Decouple both rails locally with 0.1 F and 10 F capacitors. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical JTAG-ISP design notes not found in a single manufacturer datasheet.
EPM3032ATC44-10N - MAX 3000A CPLD, 32 Macro, 10ns | Intel
The Intel (formerly Altera) EPM3032ATC44-10N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, packaged in a 44-pin TQFP. It integrates 600 usable gates, 32 macrocells, 2 Logic Array Blocks (LABs), and 34 user I/O pins, with a pin-to-pin logic delay of 10 ns and internal counter frequencies up to 138.9 MHz at a 3.3 V core supply. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits in the programmable logic hierarchy between simple SPLDs (PAL/GAL) and FPGAs. CPLDs use a classic AND/OR macrocell fabric backed by EEPROM or flash configuration memory, providing instant-on behavior, deterministic timing, and excellent pin-to-pin delay guarantees that make them ideal for glue logic, bus interfacing, and control-plane decoding where FPGAs are over-specified and discrete logic is too large. Key features of the EPM3032ATC44-10N include 3.3-V in-system programmability (ISP) via the built-in IEEE Std. 1149.1 JTAG interface, MultiVolt I/O supporting 5.0 V, 3.3 V, and 2.5 V logic levels, optional open-drain outputs on every I/O for wired-OR control signaling, and IEEE Std. 1532 compliant ISP for concurrent multi-vendor programming. The device operates over the commercial 0 C to +70 C range (the trailing -10 speed grade corresponds to 10 ns tPD). Internally, the MAX 3000A architecture uses the Logic Element (LE) as its fundamental building block, organized into LABs that share a programmable interconnect array (PIA). Each macrocell contains a programmable AND/OR array, a flipflop, and configurable output enable, giving designers deterministic combinatorial plus registered logic with predictable 10 ns timing regardless of routing complexity. Typical applications include address decoding and bus interface bridging, power-up and power-sequencing controllers, state-machine controllers for industrial and consumer peripherals, peripheral chip select generation for microprocessors, and high-speed glue logic on PC/104, VME, and PCI add-in boards where instant-on EEPROM-based logic avoids the configuration delay of an FPGA. Designers should ensure that all I/O banks are powered within the supported MultiVolt range and that the JTAG chain (TCK, TMS, TDI, TDO) is correctly terminated for in-system programming. Decoupling the 3.3 V VCCINT pin with 0.1 uF and 10 uF capacitors close to the package minimizes core-noise-induced timing jitter on high-frequency paths. This page synthesizes distributor pricing, same-family speed-grade drop-in alternatives (EPM3032ATC44-7N, EPM3032ATI44-10N, EPM3032ATC44-10), and practical design notes that are not consolidated on the manufacturer product page or any single distributor listing.
EPM3032ATC44-10NAA - 32-Macrocell MAX 3000A CPLD, 44-TQFP | Altera
The Altera EPM3032ATC44-10NAA is a 32-macrocell, 600-gate member of the MAX 3000A family of in-system-programmable (ISP) Complex Programmable Logic Devices (CPLDs), supplied in a 44-pin TQFP package with a 10 ns propagation delay (the "-10" speed grade) and a commercial operating temperature range. 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 centralized interconnect. The MAX 3000A family sits within Altera's broader programmable-logic hierarchy (CPLD family -> programmable logic -> logic IC -> semiconductor), and is built on 5.0V-tolerant, 3.3V-core CMOS EEPROM technology. The EPM3032ATC44-10NAA specifically is positioned at the small-density end of the family with 32 macrocells and 600 usable gates, suitable for glue-logic, interface-bridging, and bus-decoding tasks. The key features of this device include 32 macrocells organized in 2 Logic Array Blocks (LABs), 34 user I/O pins, 3.3V core operation, MultiVolt I/O supporting 5.0V/3.3V/2.5V logic levels, and IEEE Std. 1149.1 JTAG plus IEEE Std. 1532 ISP for in-system programming. Its 10 ns pin-to-pin delay (tpd) supports logic operation up to roughly 100 MHz on internal paths, and hot-socketing support is built into the I/O buffers. Architecturally, the device uses a non-volatile EEPROM cell plus the MAX interconnect matrix. The two LABs share global control signals (clock, clear, output enable), and each macrocell contains a programmable AND-OR array feeding a configurable flip-flop with selectable register/bypass modes. MultiVolt I/O means the same part can drive or receive 5.0V TTL, 3.3V LVTTL, or 2.5V LVCMOS signals without external translators, simplifying mixed-voltage board designs. Typical applications include address decoding and glue logic in microprocessor/microcontroller systems, I/O expansion and bus interfacing, state-machine control, and 5.0V/3.3V logic-level translation. Industrial controls, point-of-sale terminals, and legacy telecom linecards commonly use MAX 3000A parts like this one to consolidate random SSI/MSI logic into a single reprogrammable device. When designing with this part, verify JTAG chain ordering carefully because ISP via IEEE 1532 allows concurrent in-system programming even on populated boards, but TCK/TMS/TDO chains must be unbroken. Decoupling requirements follow the MAX 3000A family guideline of one 0.1 uF plus one bulk capacitor per VCC/GND pair placed close to the package. This page synthesizes distributor pricing snapshots, drop-in same-package alternatives drawn from the same MAX 3000A family, and practical design notes that go beyond the manufacturer datasheet itself.
EPM3032ATC44-10NAB - 32-Macrocell CPLD, 10ns, 3.3V | Intel (Altera)
The Intel (formerly Altera) EPM3032ATC44-10NAB is a 32-macrocell, 10ns pin-to-pin delay member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), housed in a 44-pin TQFP package and supplied in Tray packaging per the 'NAB' order code suffix. The device integrates 600 gates of logic fabric, runs the core at 3.3 V, and exposes a MultiVolt I/O interface that is compatible with 5.0 V, 3.3 V, and 2.5 V logic levels on the same pins. The In-System Programmability (ISP) circuitry on this family conforms to the IEEE Std. 1532 specification, allowing concurrent ISP across multiple PLD vendors via a standard 4-pin JTAG interface (JTAG, TMS, TCK, TDI, TDO). A Complex Programmable Logic Device (CPLD) is a non-volatile, instantaneously-rewritable digital logic IC that replaces discrete glue-logic gate arrays, address decoders, bus arbiters, and state machines. The MAX 3000A family sits within the broader programmable-logic taxonomy of programmable logic devices (PLDs) -> CPLDs -> EEPROM-based CPLDs -> MAX-family CPLDs. The EPM3032A is the lowest-density member of the family, designed for cost-sensitive glue-logic consolidation in designs where a small FPGA would be over-spec and a discrete logic implementation would consume too much board area. Key features of this part include 32 macrocells, 600 usable gates, 34 user I/O pins (per the 44-pin TQFP variant), 10 ns pin-to-pin combinatorial delay, and a maximum internal operating frequency in the 100+ MHz range. The device supports hot-socketing, meaning it can be inserted into a live backplane without damaging the device or disturbing system operation, which is critical for CompactPCI and VME designs. The non-volatile EEPROM configuration cell removes the need for an external boot PROM, simplifying the BOM. Architecturally, the EPM3032ATC44-10NAB uses a classic Logic Array Block (LAB) structure of 16 macrocells per LAB connected by a programmable interconnect array (PIA). Each macrocell contains a programmable AND/OR register with configurable D/T/JK flip-flops, and a programmable polarity output. The 3.3 V core with MultiVolt I/O gives designers a single 3.3 V supply while still driving 5 V TTL peripherals, eliminating level-translator chips in mixed-voltage designs. Typical applications include bus-interface bridging, address decoding for microprocessor systems, glue-logic consolidation in telecom and industrial control designs, JTAG-driven boundary-scan chains per IEEE 1149.1, and small state-machine replacement. With pin-to-pin delay of 10 ns, the device comfortably meets address-decode and interrupt-acknowledge timing requirements for microcontrollers and embedded processors operating up to 50-60 MHz. When designing with this part, remember that ISP requires all VCCINT and VCCIO pins to be powered, and unused I/O pins should be left floating per the datasheet to minimize inrush current during hot-socketing. This page synthesizes distributor stock levels, drop-in same-package alternatives from the MAX 3000A family, and practical design notes that go beyond the information in the bare manufacturer datasheet, helping engineers source and apply this legacy CPLD with confidence.
EPM3032ATC44-4 - MAX 3000A CPLD, 32 Macrocells, 44-TQFP | Intel
The Intel (formerly Altera) EPM3032ATC44-4 is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based complex programmable logic devices (CPLDs). It integrates 32 macrocells organized into 2 Logic Array Blocks (LABs), provides 34 user I/O pins, and is housed in a 44-pin Thin Quad Flat Pack (TQFP) package. The speed grade suffix "-4" denotes a tPD (pin-to-pin logic delay) of 4.5 ns, making it suitable for medium-speed control and glue-logic applications. What is a CPLD? A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays interconnected by a programmable switch matrix. CPLDs sit in the programmable logic hierarchy between simple SPLDs (e.g., classic 22V10 PALs) and FPGAs, offering deterministic timing, instant-on behavior, and 3.3 V in-system programmability via the IEEE 1149.1 JTAG interface. The MAX 3000A family is part of the broader programmable logic category, which falls under the semiconductor device taxonomy. Key features of the EPM3032ATC44-4 include 3.3 V in-system programmability (ISP) through the built-in JTAG interface, MultiVolt I/O supporting 1.8 V, 2.5 V, and 3.3 V mixed-voltage interfacing, 32 macrocells with 100% interconnect, and an open-drain output option per I/O pin for wired-OR control signals. The device supports 1000 erase/program cycles and retains logic for a minimum of 20 years. Architecturally, the EPM3032ATC44-4 uses a non-volatile EEPROM cell to store configuration, enabling instant-on operation without external boot memory. The deterministic interconnect fabric yields predictable, data-sheet-specified propagation delays independent of logic utilization - a key advantage over SRAM-based FPGAs for timing-critical control paths. Typical applications include I/O expansion for microcontrollers and microprocessors, address decoding and bus interface logic, state-machine and glue-logic replacement for legacy 74-series TTL, power-supply sequencing, and industrial control boards requiring deterministic timing. When designing with this device, ensure that the JTAG chain (TDI, TDO, TMS, TCK) is properly terminated and that the 3.3 V core supply rail has decoupling capacitors placed within 5 mm of the VCC pins. This page synthesizes distributor pricing, JTAG-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
EPM3032ATC44-4N - 32-Macrocell MAX 3000A CPLD, 4.5ns | Intel/Altera
The Intel (formerly Altera) EPM3032ATC44-4N is a high-performance, non-volatile Complex Programmable Logic Device (CPLD) from the MAX 3000A family, offering 32 macrocells and 34 user I/Os in a 44-pin TQFP package. It is built on the classic Altera MAX architecture with EEPROM configuration memory, allowing unlimited in-system reprogrammability via the built-in IEEE 1149.1 JTAG interface and IEEE 1532 ISP circuitry. The -4 speed grade delivers a worst-case pin-to-pin logic delay of 4.5 ns, supporting system clock rates up to 227.3 MHz, which makes it well-suited for glue-logic, bus decoding, and high-speed control applications. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines the deterministic timing of PAL/GAL architecture with higher logic density, typically integrating multiple PAL-like logic blocks (LABs) connected through a programmable interconnect array (PIA). Within the broader programmable logic hierarchy, CPLDs sit below FPGAs in density but above simple SPLDs in capacity, providing instant-on behavior, single-chip non-volatile storage, and predictable timing that is ideal for system boot, address decoding, and interrupt management before an FPGA or ASIC is configured. The MAX 3000A series further adds a 3.3 V core with 5.0 V-tolerant I/O, allowing direct interfacing with mixed-voltage buses. Key features of the EPM3032ATC44-4N include 32 macrocells across 2 logic array blocks, 34 usable I/O pins, 100% interconnect with predictable fixed delays, a built-in boundary-scan (BST) circuit compliant with IEEE 1149.1, and pin-locking capability that preserves pin assignments through design iterations. It supports 5.0 V ISP (in-system programmability) and offers a typical standby current well below 1 mA, enabling low-power always-on designs. In typical applications, the EPM3032ATC44-4N is used as bus decoder and address latch in microcontroller and embedded-processor boards, as a state-machine and sequencer in industrial controllers, and as a glue-logic bridge between incompatible voltage domains or interface standards (PCI, ISA, UART, memory controllers). Designers value the device for its deterministic timing, JTAG-based re-programmability, and the Quartus II design flow that allows rapid development of combinational and sequential logic. When designing with this part, plan for a 3.3 V VCCINT and provide proper JTAG TMS/TCK/TDI/TDO pull-ups; the MAX 3000A series requires a Quartus-supported device programmer or JTAG download cable (such as the ByteBlasterMV) for ISP. Always include decoupling capacitors on every VCC pin and route the global clear (DEV_CLRn) and global OE (DEV_OE) signals carefully to maintain signal integrity at high toggle rates. This page synthesizes distributor pricing, same-family drop-in alternatives such as EPM3032ALC44-4N and EPM3032ATC44-10N, JTAG programming guidance, and practical design notes not consolidated on any single manufacturer or distributor page.
EPM3032ATC44-7 - 32-Macrocell MAX 3000A CPLD, 7.5ns TQFP-44
The Intel (formerly Altera) EPM3032ATC44-7 is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), delivering 32 macrocells, 600 usable gates, and a 7.5 ns pin-to-pin propagation delay in a 44-pin TQFP surface-mount package. Built on a 3.3 V CMOS process, the device provides in-system programmability via IEEE Std. 1149.1 JTAG, an open-drain output option on every I/O, and 34 user I/O pins suitable for 5 V tolerant mixed-voltage interfacing. The part belongs to the MAX 3000A speed grade -7 (the fastest commercial grade for this family) and operates over the 0 °C to +70 °C commercial temperature range. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that implements combinatorial and registered logic using a small number of macrocells organized into logic array blocks (LABs). In the system hierarchy it sits below FPGAs in density (typically tens to a few hundred macrocells) but offers deterministic, single-cycle propagation delay and instant-on behavior without external boot memory, making it ideal for glue logic, bus decoding, interface bridging, and power-up sequencing. MAX 3000A devices are widely used in cost-sensitive industrial and consumer applications where predictable timing matters more than raw logic capacity. Key features of the EPM3032ATC44-7 include 32 macrocells across 2 logic array blocks, a 7.5 ns tPD, a 138.9 MHz internal fCNT, MultiVolt I/O supporting 3.3 V/5 V mixed-voltage operation, JTAG-based in-system programmability (ISP), and IEEE 1149.1 boundary-scan test support. Each I/O pin can be configured as a totem-pole or open-drain output, enabling wire-OR control signaling. The device is supported by the Quartus II design toolchain. Architecture-wise, the MAX 3000A family uses a CMOS EEPROM-based non-volatile fabric, allowing the configuration to be retained without external memory and to begin functioning within microseconds of VCC ramp. The 44-pin TQFP package provides adequate thermal dissipation for typical CPLD power budgets and supports hand-soldered rework. Designers familiar with the legacy MAX 7000 series will find the Quartus design flow and JTAG programming model essentially identical. Typical applications include 5 V-to-3.3 V address/data bus decoding and level shifting in legacy systems, I/O expansion for microcontrollers with limited pin count, FPGA configuration control and power-sequencing logic, glue logic between processors and peripherals, and protocol bridge interfaces (UART, SPI, I2C) in industrial control boards. The wide operating voltage range and deterministic timing make it a strong fit for industrial automation backplanes and factory-floor I/O modules. When designing with this device, ensure that JTAG chain length and TMS/TCK signal integrity are maintained, because ISP reuse of those pins can cause contention if not properly isolated during in-field programming. The device's I/O pins are 5 V-tolerant when VCCIO is set to 3.3 V; care must be taken not to exceed the absolute maximum ratings on any pin. This page synthesizes distributor pricing, parametric comparison, and practical design considerations not found in the bare manufacturer datasheet, making it easier to evaluate the EPM3032ATC44-7 against modern drop-in alternatives.
EPM3032ATC44-7N - MAX 3000A CPLD, 32 Macrocells, 7.5ns, 44-TQFP
The Intel (formerly Altera) EPM3032ATC44-7N is a 3.3V in-system programmable Complex Programmable Logic Device (CPLD) from the MAX 3000A family, featuring 32 macrocells, 34 user I/O pins, and a 7.5ns propagation delay housed in a 44-pin TQFP package. The device delivers 600 usable gates organized into 2 Logic Array Blocks and supports a maximum internal frequency of 138.9 MHz. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that combines multiple PAL/GAL-like macrocells on a single chip with a programmable interconnect matrix. In the broader taxonomy, the EPM3032ATC44-7N belongs to: CPLD -> programmable logic device (PLD) -> logic IC -> digital semiconductor -> integrated circuit. Unlike SRAM-based FPGAs that require a boot configuration memory, MAX 3000A CPLDs store their configuration in on-chip EEPROM, so they boot instantly with their logic image retained through power cycles. Key features include 3.3V core and I/O operation with multi-voltage I/O support (2.5V, 3.3V, or 5.0V), in-system programmability (ISP) via the IEEE Std. 1149.1 JTAG interface, and CMOS EEPROM-based configuration memory that retains logic without external boot devices. The 7.5ns pin-to-pin delay (tPD) makes this part suitable for glue-logic replacement, address decoding, and bus-interface bridging where deterministic timing is required. Architecturally, the MAX 3000A family uses a classic Logic Array Block (LAB) structure, with each LAB containing 16 macrocells. The 2 LABs in the EPM3032ATC44-7N communicate through a programmable interconnect array (PIA), and each macrocell includes a programmable-AND/fixed-OR array with a flip-flop, supporting both combinatorial and registered logic implementation. MultiVolt I/O pins allow interfacing with 2.5V, 3.3V, or 5.0V peripherals from a single 3.3V supply. Typical applications include bus decoding and address latch replacement, glue-logic integration for ASIC/FPGA systems, I/O expansion for microcontrollers, JTAG-driven boundary-scan implementations, and 5V-to-3.3V level translation. The 34 I/O pins and JTAG ISP capability make it especially attractive for legacy designs and brownfield retrofits. When designing with this part, pay attention to the difference between VCCINT (core supply) and VCCIO (I/O supply) - the device supports mixed-voltage I/O so VCCIO can be set independently. The 7.5ns tPD grade is the slowest in the EPM3032A family; choose a faster -4 or -5 grade part only if timing closure demands it. This page synthesizes distributor pricing, drop-in alternatives from the same MAX 3000A family, and practical design notes not consolidated in the original Altera datasheet, giving engineers a single decision-ready reference.
EPM3032ATI44-10 - 32-Macrocell 10ns CPLD, 44-TQFP | Intel / Altera
The Intel / Altera (formerly Altera Corporation) EPM3032ATI44-10 is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs) housed in a 44-pin TQFP (plastic Thin Quad Flat Pack) surface-mount package. It provides 32 macrocells, 600 usable gates, and 34 user I/O pins with a maximum propagation delay of 10 ns (corresponding to a maximum internal operating frequency of approximately 103.1 MHz). The device operates from a 3.3 V core supply and is built on a non-volatile EEPROM process technology that retains logic configuration without an external boot PROM. 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 central interconnect matrix. CPLDs sit in the programmable logic hierarchy between simple SPLDs (PAL/GAL) and larger FPGAs, offering deterministic timing, instant-on behavior, and high-drive I/O. The MAX 3000A family was historically Altera's mainstream low-density EEPROM CPLD line, widely used for glue logic, bus bridging, address decoding, and state-machine control. The EPM3032ATI44-10 supports 3.3 V in-system programmability (ISP) via the built-in IEEE Std. 1149.1 (JTAG) interface, and the ISP circuitry is compliant with IEEE Std. 1532 for concurrent multi-vendor programming. Each macrocell contains a programmable AND/OR array with configurable register/bypass modes, a product-term distribution network, and a JTAG-controlled configuration engine. The 34 I/O pins are 5 V-tolerant (with proper PCI-clamp diode handling) and feature individually programmable slew-rate control to balance EMI and switching speed. Typical applications include PCI/LPC bus address decoding, glue logic between microcontrollers and peripherals, board-level configuration registers, custom state machines, and asynchronous interface bridging (for example, between an MCU and an asynchronous SRAM, or between an 8-bit and a 16-bit bus). The instant-on, non-volatile nature of EEPROM configuration makes the EPM3032ATI44-10 attractive for systems that must begin executing deterministic logic within microseconds of power-up, before any processor bootloader runs. When designing with this part, note that the EPM3032ATI44-10 (industrial temperature grade, 'I' suffix) supports the -40 °C to +85 °C range. The 'N' suffix denotes lead-free / Pb-free assembly; the variant without 'N' contains lead and is RoHS non-compliant, which restricts it to legacy or non-EU designs. Designers must apply proper JTAG pull-up resistors on TCK, TMS, TDI and TDO per IEEE 1149.1 to ensure reliable boundary-scan operation, and must provide decoupling on every VCCINT/VCCIO pin pair. This page synthesizes verified distributor stock levels, drop-in MAX 3000A and Xilinx XC9500XL equivalents, parameter-by-parameter comparisons, and practical design notes that go beyond the bare manufacturer datasheet - giving procurement and engineering teams a single source of truth for sourcing and second-sourcing decisions.
EPM3032ATI44-10N - 600-Gate 32-Macrocell 3.3V CPLD | Intel / Altera
The Intel (formerly Altera) EPM3032ATI44-10N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, housed in a 44-pin Thin Quad Flat Pack (TQFP-44) industrial-temperature package with 34 user I/Os, 32 macrocells, and a 10-ns pin-to-pin propagation delay. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macrocell arrays on a single chip with a programmable interconnect fabric. CPLDs sit in the hierarchy between simple SPLDs (PALs/GALs) and larger FPGAs: they offer deterministic timing, instant-on EEPROM configuration, modest logic capacity (hundreds to thousands of gates), and are typically used for glue logic, bus interfacing, state-machine control, and I/O expansion. The MAX 3000A family is the 3.3-V low-cost tier of Altera's MAX architecture. Key features include 600 usable gates, a 103.1 MHz internal counter frequency, 3.3-V core supply with MultiVolt I/O supporting 5.0-V, 3.3-V, and 2.5-V logic interfaces, in-system programmability (ISP) via the built-in IEEE Std. 1149.1 JTAG interface and IEEE Std. 1532 compliance, and hot-socketing support. The 'I' suffix designates the industrial operating temperature range of -40C to +85C. The 10-ns speed grade (tPD = 10 ns) makes this part suitable for general-purpose logic replacement and control applications that do not require the fastest 4.5-ns MAX 3000A grades. The device is fabricated on an EEPROM-based CMOS process, which provides non-volatile configuration memory - the design is retained without an external boot PROM and the device powers up instantly ready to operate. The MAX architecture uses a classic Logic Array Block (LAB) structure with a programmable interconnect matrix (PIA), giving deterministic timing that simplifies static timing analysis compared to FPGAs. Typical applications include board-level glue logic replacement, address decoding and bus interfacing, state-machine and sequencer control, I/O expansion for microcontrollers, LED and display multiplexing drivers, and power-up/power-down sequencing logic. Industrial automation, telecom line cards, and legacy industrial PC peripherals are common end-use markets. When designing with this device, ensure the JTAG chain is correctly ordered if multiple IEEE 1149.1 devices share the same TDI/TDO path, and verify that 5-V-tolerant I/O pins are not driven above 5.25 V absolute maximum even briefly during hot-socketing transients. This page synthesizes distributor stock data, parametric drop-in alternatives within the same TQFP-44 footprint, and practical design notes not consolidated on a single manufacturer datasheet page.
EPM3032ATI44-7N - MAX 3000A CPLD, 32 Macrocells, 44-TQFP | Altera
The Altera (now Intel) EPM3032ATI44-7N is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs) delivering 600 usable gates, 32 macrocells, and a maximum internal operating frequency of 138.9 MHz in a 44-pin TQFP (industrial temperature grade) package. It is fabricated on a 3.3 V CMOS EEPROM process with in-system programmability via the IEEE 1149.1 JTAG interface, providing non-volatile configuration storage that eliminates external boot memory. A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic IC that combines multiple PAL-like logic blocks (called Logic Array Blocks or macrocells) on a single die, with a programmable interconnect matrix. CPLDs sit in the broader taxonomy: programmable logic -> PLD (programmable logic device) -> CPLD/FPGA -> MAX 3000A family -> MAX 3000A series. They are deterministic, propagate signals with predictable propagation delay (pin-to-pin tPD), and retain configuration without external boot ROM, which differentiates them from SRAM-based FPGAs that require a configuration flash. The EPM3032ATI44-7N provides 32 macrocells, 600 gates, 34 user I/O pins, and an internal frequency of 138.9 MHz, with a worst-case pin-to-pin propagation delay of 7.5 ns (-7 speed grade, where the dash number designates tPD in nanoseconds). Key features include IEEE 1149.1 JTAG support for in-system programming and boundary-scan test, multiVolt I/O that interfaces with 1.8 V, 2.5 V, and 3.3 V logic, and an industrial temperature range of -40C to +85C designated by the "I" in the part number. The architecture combines four Logic Array Blocks (LABs) interconnected by the programmable interconnect array (PIA). Each macrocell contains a programmable AND/OR array, a flip-flop, and an output enable control. The 5 V tolerant I/O pins (when VCCIO is set to 3.3 V) make this device compatible with mixed-voltage legacy systems. The non-volatile EEPROM configuration cell eliminates the need for a separate boot PROM, reducing board area and BOM cost. Typical applications include industrial glue logic replacing discrete 74-series TTL, address decoding in microcontroller or microprocessor systems, state-machine implementation in motor-control and instrumentation, bus-interface bridging (e.g., 8-bit to 16-bit multiplexing), and I/O expansion for legacy designs. Its 138.9 MHz internal frequency and 7.5 ns tPD make it suitable for glue logic operating below ~70 MHz external clock rates. When designing with this device, note that the "A" suffix indicates the 3.3 V MAX 3000A variant (superseding the original 5 V MAX 3000), the "T" in the package code designates the TQFP package, and the "I" indicates the industrial -40C to +85C operating range. Confirm JTAG chain order when cascading with other boundary-scan devices, and respect the VCCIO pin supply for output level selection. This page synthesizes drop-in alternatives, comparison tables, and design considerations not consolidated in the original MAX 3000A datasheet, enabling engineers to quickly evaluate the EPM3032ATI44-7N for both new designs and legacy replacements.
EPM3064ALC44-10 - 64-Macrocell MAX 3000A CPLD, 10ns, 44-PLCC | Altera
The Altera EPM3064ALC44-10 is a 64-macrocell, 1,250-gate Complex Programmable Logic Device (CPLD) from the MAX 3000A family, housed in a 44-pin Plastic Leaded Chip Carrier (PLCC, J-Lead) package. It operates from a single 3.3V supply and offers 10ns pin-to-pin combinatorial delay, with a maximum counter frequency of 192.3 MHz, making it suitable for high-speed glue-logic, interface bridging, and bus decoding tasks. A CPLD (Complex Programmable Logic Device) is a non-volatile, flash- or EEPROM-based programmable logic device that sits hierarchically below FPGAs and above discrete 74-series glue logic. It belongs to the broader category of programmable logic devices (PLDs), which also includes simple PALs, GALs, and high-density FPGAs. CPLDs typically deliver deterministic, sub-nanosecond propagation delays with low power consumption, which makes them ideal for system-level logic integration, address decoding, and I/O expansion in cost-sensitive designs. Key features of the EPM3064ALC44-10 include 64 macrocells organized into 4 Logic Array Blocks (LABs), 34 user I/O pins, 1,250 usable gates, and 4.5ns to 10ns pin-to-pin delay depending on the speed grade. The MAX 3000A architecture is fabricated on a 0.30µm CMOS EEPROM process, providing in-system programmability (ISP) via JTAG (IEEE Std 1149.1). The device also features multiVolt I/O, allowing 5.0V, 3.3V, and 2.5V interface compatibility from the same 3.3V core supply. From an architectural standpoint, the MAX 3000A family uses a classic AND-OR programmable logic array with each macrocell containing a programmable AND array, an XOR gate for polarity control, a configurable flip-flop, and a fast I/O block. The deterministic timing model guarantees the same propagation delay regardless of logic complexity, which is a key differentiator versus microcontrollers and FPGAs that exhibit variable routing delays. Typical applications include industrial control boards, legacy peripheral replacement, address decoding for 8-bit and 16-bit microprocessors, I/O expansion for ASICs and microcontrollers, and glue logic in telecom and networking backplane designs. The 44-pin PLCC package is socket-compatible across speed grades and temperature variants within the same family, allowing easy board-level upgrades. When designing with this device, ensure the 3.3V VCCINT rail has at least 10µF of bulk decoupling plus 0.1µF high-frequency bypass capacitors placed near each VCC/GND pair. The JTAG pins (TDI, TDO, TMS, TCK) should be routed to a 4-pin header for in-system programming. ISP programming via ByteBlaster or compatible download cables is supported through the Altera Quartus design toolchain. This page synthesizes distributor pricing, drop-in alternative listings, and practical design notes for the EPM3064ALC44-10 that are not found in a single place elsewhere on the web.
EPM3064ALC44-10N - MAX 3000A CPLD, 64 Macrocells, 34 I/O | Intel / Altera
The Intel / Altera EPM3064ALC44-10N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, providing 64 macrocells, 4 Logic Array Blocks, and 34 user I/O pins in a 44-pin PLCC (LC44) package. It operates at 3.3 V core with pin-to-pin delays as fast as 10 ns and counter speeds up to 227.3 MHz, delivering up to 1,250 usable gates. The device is built on advanced CMOS EEPROM technology and supports 3.3-V in-system programmability (ISP) via the built-in IEEE Std. 1149.1 JTAG interface, and is also compliant with the IEEE Std. 1532 concurrent ISP specification for multi-vendor programming. A Complex Programmable Logic Device (CPLD) is a non-volatile, deterministic logic device that combines multiple SPLD-like macrocell arrays on a single die, providing predictable timing, low power consumption, and instant-on behavior due to its EEPROM configuration memory. CPLDs occupy a tier between simple PAL/GAL SPLDs and large FPGAs - they are well suited for glue logic, bus interfacing, state-machine control, and power-up logic that demands deterministic timing and no configuration latency. Within the broader programmable-logic taxonomy, the MAX 3000A family is positioned as an entry-level/low-cost CMOS EEPROM CPLD, predating the flash-based MAX II, MAX V, and MAX 10 families. Key features of the EPM3064ALC44-10N include four user I/O banks, open-drain output option per I/O pin for wired-OR control signalling, programmable output slew-rate control, JTAG boundary-scan test support, and a MultiVolt core that allows mixed-voltage interfacing on the same device. The device operates from a 3.0 V to 3.6 V supply, supports commercial and industrial temperature grades, and integrates clear/preset, clock-enable, and per-macrocell OE control for fine-grained sequential logic implementation. The internal architecture is built around the classic Altera MAX LAB (Logic Array Block) structure, where each LAB contains 16 macrocells fed by a programmable AND array. The EEPROM cell stores the configuration, giving the part zero-power standby and instant-on characteristics - an advantage over SRAM-based FPGAs in cold-start and power-critical applications. Performance is dominated by the 10 ns pin-to-pin tPD and 227.3 MHz counter frequency, sufficient for most glue-logic, address-decoding, and small state-machine tasks. Typical applications include legacy industrial PLC I/O expansion, ISA/PCI bus interface bridging, address decoding and chip-select generation, power-up sequencing for multi-rail systems, and glue-logic replacement for discrete 74-series TTL. Designers commonly choose this part when deterministic timing, instant-on non-volatile configuration, and a low pin count are required. When designing with this device, ensure decoupling with 0.1 µF and 10 µF bulk capacitors placed close to VCC pins; unused I/Os should be configured as outputs driving low or left floating per JTAG chain requirements; and observe the MultiVolt I/O bank VCCIO constraints when mixing 3.3 V and 5 V buses. This page synthesizes distributor pricing, drop-in alternatives (including the Atmel/Microchip ATF1504ASV-15JU44 cross-brand equivalent), and practical design notes not found in the manufacturer datasheet alone.
EPM3064ALC44-4 - 64 Macrocells, 4.5ns CPLD | Altera (Intel)
The Altera (Intel) EPM3064ALC44-4 is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, delivering 64 macrocells organized in 2 Logic Array Blocks (LABs) with 34 user I/O pins in a 44-pin PLCC (Plastic Leaded Chip Carrier, J-Lead) package. It features a pin-to-pin propagation delay of 4.5 ns, making it suitable for high-speed glue-logic, bus interfacing, and state-machine replacement in industrial and commercial designs. The device supports 3.3-V in-system programmability (ISP) through the built-in IEEE Std. 1149.1 JTAG interface, enabling field upgrades without removing the part from the board. A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic IC that combines multiple PAL/GAL-like macrocell blocks with a central interconnect matrix. Within the programmable logic hierarchy, the EPM3064 sits at the low-density end, below FPGAs and higher-density CPLDs; it is best understood as a glue-logic and bus-interface replacement IC, distinct from microcontrollers, ASICs, and discrete logic gates. The MAX 3000A architecture supports 2.5-V, 3.3-V, or 5.0-V I/O pin operation via separate VCCINT and VCCIO pins, giving designers flexible interfacing with both legacy 5V and modern 3.3V logic families. Key features include 64 macrocells, 34 I/O pins, 4.5 ns tPD, an internal JTAG-based ISP engine, and EEPROM-based configuration that retains logic without an external boot PROM. The PLCC-44 (J-Lead) package is socket-compatible with industry-standard 44-pin PLCC sockets, easing prototyping and rework on through-hole or socketed boards. Architecture-wise, the EPM3064 uses a CMOS EEPROM process with Altera's classic MAX interconnect matrix, providing predictable timing with deterministic pin-to-pin delays regardless of logic utilization. This makes timing closure straightforward compared to SRAM-based FPGAs that require external configuration memory. Typical applications include bus-interface bridging (e.g., 5V to 3.3V level shifting), address decoding, peripheral chip-select generation, glue logic between microcontrollers and peripherals, and legacy system upgrades. The wide I/O voltage range also suits industrial control, instrumentation, and telecommunications backplane glue. When designing with the EPM3064ALC44-4, use the Altera/Intel Quartus II programmer or legacy MAX+PLUS II toolchain (the device is supported by classic Altera design software). JTAG ISP requires four dedicated pins (TDI, TDO, TMS, TCK) plus a VCCIO reference. Decouple VCCINT and VCCIO with 0.1 uF ceramic capacitors placed close to the pins. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, JTAG programming notes, and design considerations not collected in any single source.
EPM3064ALC44-4N - 64-Macrocell CPLD, 4.5ns, 44-PLCC | Intel
The Intel (formerly Altera) EPM3064ALC44-4N is a 64-macrocell, 1.25K-gate CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, housed in a 44-pin plastic J-lead chip carrier (PLCC) package with a 4.5 ns pin-to-pin logic delay and 222.2 MHz maximum operating frequency. It integrates 2 Logic Array Blocks (LABs) and provides 34 user I/O pins for general-purpose logic integration, glue-logic replacement, and bus-interface bridging in 3.3 V systems. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that contains multiple PAL-like macrocells interconnected through a central programmable interconnect matrix. CPLDs sit hierarchically above simple PLDs (PAL/GAL) and below FPGAs in the programmable logic taxonomy, offering deterministic timing, instant-on operation from on-chip EEPROM, and superior pin-locking for stable board revisions. The MAX 3000A architecture is widely used as low-cost glue logic in industrial, telecom, and consumer designs. Key features include 3.3 V in-system programmability (ISP) via the built-in IEEE Std 1149.1 JTAG interface, MultiVolt I/O supporting 5.0 V, 3.3 V, and 2.5 V logic levels on output and input pins, hot-socketing support for live board insertion, and a 4.5 ns combinatorial propagation delay that enables high-speed state-machine and decoder implementations. The on-chip EEPROM configuration memory eliminates external boot devices and supports thousands of reprogram cycles. The MAX 3000A architecture uses a classic AND-OR sum-of-products structure with 32 macrocells per LAB, sharing a global interconnect for predictable, deterministic timing. Each macrocell contains a programmable flip-flop, product-term selection logic, and a tri-state output buffer. The 64-macrocell device provides roughly 1,250 usable gates - well suited for address decoding, bus arbitration, peripheral control, and small state machines. Typical applications include industrial control boards, telecom line-card glue logic, peripheral interface bridging (e.g., local-bus to ISA, GPIO expansion), printer and storage controller boards, and legacy system maintenance where instant-on non-volatile logic is required without an external boot PROM. When designing with the EPM3064ALC44-4N, ensure the JTAG chain is properly terminated per IEEE 1149.1 and that I/O banks observe the MultiVolt VCCIO supply requirements; mixing 5 V and 3.3 V signals in the same bank without proper VCCIO selection is a common pitfall. This page synthesizes distributor pricing, drop-in alternatives from the MAX 3000A family, and practical JTAG programming guidance not found in the manufacturer datasheet alone.
EPM3064ALC44-7N - 64-Macrocell MAX 3000A CPLD, 7.5ns, 44-PLCC | Intel / Altera
The Intel (formerly Altera) EPM3064ALC44-7N is a 64-macrocell, 34-I/O CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, supplied in a 44-pin plastic J-leaded chip carrier (PLCC) package with a 7.5 ns pin-to-pin logic delay. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits in the broader taxonomy of digital semiconductors: programmable logic -> logic IC -> integrated circuit. CPLDs combine multiple PAL-like macrocell blocks on a single die with a programmable interconnect matrix, providing deterministic timing, instant-on operation (no external boot PROM required), and in-system programmability (ISP). The MAX 3000A family uses EEPROM configuration cells, so the device retains its logic pattern indefinitely without external memory and supports the IEEE Std 1149.1 JTAG interface for boundary-scan testing and ISP. Key features of the EPM3064ALC44-7N include 1,250 usable gates, 64 macrocells distributed across 2 Logic Array Blocks (LABs), 34 user I/O pins, a maximum toggle frequency around 135 MHz (per family characterization), and a 3.3 V core supply with 5 V-tolerant I/O. The 7.5 ns tPD makes it suitable for glue-logic, interface bridging, and asynchronous state-machine replacement of discrete 74-series TTL/MSI parts. Each macrocell contains a programmable AND/OR array, a flip-flop with selectable clock/enable, and a tri-state output buffer with individually programmable pin functions. Typical applications include bus decoding and address mapping in legacy microcontroller or 8051 systems, I/O expansion and signal conditioning for industrial controllers, replacement of multiple discrete SSI/MSI logic gates (74xx/54xx), power-on sequencing logic, and glue logic between ASICs and standard peripherals. The 44-PLCC footprint is socket-friendly for prototype and production rework. Design with the EPM3064ALC44-7N by writing HDL in the Quartus II/Quartus Prime design suite (legacy MAX+PLUS II is also supported), then programming through the JTAG chain with a ByteBlaster, USB-Blaster, or compatible download cable. Note that the MAX 3000A family is mature and is recommended for new designs only when long-term availability and pin-compatibility with legacy designs matter more than latest-generation features. This page synthesizes distributor pricing, drop-in alternatives drawn from the same MAX 3000A family, and practical design notes not found in the original datasheet.
EPM3064ALI44-10N - MAX 3000A CPLD 64-Macrocell 44-PLCC | Altera
The Altera EPM3064ALI44-10N is a 64-macrocell, 34-I/O Complex Programmable Logic Device (CPLD) from the legacy MAX 3000A family, housed in a 44-pin Plastic Leaded Chip Carrier (PLCC) package with a -10 speed grade (10 ns pin-to-pin delay) and industrial temperature rating. Built on a low-cost CMOS EEPROM process, this device delivers up to 227.3 MHz counter frequency, 4.5 ns pin-to-pin logic delays on internal paths, and PCI SIG 2.2-compliant timing across the -4, -5, -6, -7, and -10 speed grades for bus-interface glue logic. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, instant-on programmable logic IC that bridges the gap between simple PAL/GAL devices and larger FPGAs. CPLDs use a deterministic macrocell-based architecture with an AND/OR plane followed by flip-flops, providing predictable timing, low power, and single-chip boot operation - ideal for glue logic, bus interfacing, power-up sequencing, and state-machine replacement. A CPLD sits in the device hierarchy as: programmable logic device -> CPLD -> MAX 3000A series -> EPM3064A sub-family -> semiconductor IC. Key features of the EPM3064ALI44-10N include 3.3-V in-system programmability (ISP) through the built-in IEEE Std. 1149.1 JTAG interface, a MultiVolt I/O interface allowing 5.0-V, 3.3-V, and 2.5-V logic-level interoperability from a 3.3-V core, and hot-socketing support that permits the device to be inserted into a live backplane without damaging the IC or disrupting system operation. The CMOS EEPROM configuration memory retains the user's design without an external boot PROM. Typical applications include PCI bus-interface glue logic in legacy industrial PCs, I/O expansion and address decoding for embedded controllers, power-up/power-down sequencing logic, and board-level signal conditioning in telecom and factory-automation systems. Designers choose the EPM3064A series when deterministic timing, instant-on non-volatile configuration, and small pin counts matter more than the high logic density of an FPGA. When designing with this device, ensure that the Quartus II (or MAX+PLUS II) JTAG chain is correctly ordered for ISP. Decoupling: place 0.1 uF capacitors close to each VCC and GND pair on the PLCC socket, and add a 10 uF bulk capacitor on the 3.3-V rail. The PLCC-44 socket allows field replacement, but designers migrating to a TQFP-44 footprint should verify pinout compatibility with the EPM3064ATI44 variant. This page synthesizes distributor pricing, drop-in replacement guidance, and practical design notes not always covered in the legacy Altera datasheet.
EPM3064AT100-10N - MAX 3000A CPLD, 64 Macrocells, TQFP-100 | Intel
The Intel (Altera) EPM3064AT100-10N is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), housed in a 100-pin TQFP (T100) package. It integrates 64 macrocells, 1.25K usable gates, and 66 user I/O pins with a 10 ns pin-to-pin logic delay, targeting glue-logic, bus-interface, and state-machine designs in industrial, communications, and consumer systems. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple PAL/GAL devices and larger FPGAs in the programmable logic hierarchy: CPLD -> programmable logic -> logic IC -> integrated circuit. MAX 3000A devices use EEPROM-based configuration cells that retain the design without external memory, are powered by a single 3.3 V supply, and are programmed in-system via the IEEE Std. 1149.1 (JTAG) interface with pin-locking. The IEEE Std. 1532-compliant ISP circuitry allows concurrent in-system programming from multiple PLD vendors. Key features of the EPM3064AT100-10N include 64 macrocells organized in 4 Logic Array Blocks (LABs), 66 user I/O pins, 10 ns maximum pin-to-pin delay (commercial grade, -10 speed grade), and a 100 MHz internal performance. The I/O bank operates at 3.3 V with 5.0 V tolerant inputs via clamping diodes, simplifying interfacing to legacy 5 V logic. The non-volatile EEPROM cell technology guarantees zero standby power for the configuration memory. Architecturally, the MAX 3000A family uses a classic AND-OR (sum-of-products) PLA-style fabric with a global interconnect that delivers deterministic, fixed propagation delays independent of routing density. Each macrocell contains a programmable flip-flop with selectable clear, preset, and clock controls, allowing implementation of both combinatorial and registered logic in a single device. Typical applications include I/O expansion and bus bridging, address decoding and glue logic in microcontroller/DSP systems, power-up sequencing controllers, peripheral interface glue (UART, SPI, I2C muxing), and legacy system revision upgrades. Designers value this device for replacing multiple 74-series TTL/CMOS logic packages with a single programmable IC that can be re-engineered via JTAG. When designing, plan JTAG chain ordering carefully and reserve TCK/TMS/TDO/TDI pins on the schematic; the device is not 5 V I/O standard compliant on outputs. For new designs, Intel recommends the modern MAX V family (5 V tolerant, lower power), but the EPM3064AT100-10N remains the canonical drop-in for established MAX 3000A designs. This page consolidates datasheet specifications, distributor pricing, and drop-in alternatives not aggregated on a single manufacturer page.