FPGA & CPLD
Products (6352)
EPM3064ATC-100-10N - 64-Macrocell MAX 3000A CPLD, 10ns | Altera
The Altera (Intel) EPM3064ATC-100-10N is a 64-macrocell member of the MAX 3000A family of CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs) housed in a 100-pin TQFP package. It provides 66 user I/O pins, 10 ns pin-to-pin logic delay, and an internal counter frequency of up to 227.3 MHz, while operating from a 3.3 V supply. The IEEE Std. 1532-compliant in-system programmability (ISP) is performed through the built-in IEEE Std. 1149.1 JTAG interface, eliminating the need for an external programmer. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that combines multiple PAL-like macrocell arrays on a single chip with a programmable interconnect matrix. It sits in the programmable logic hierarchy below FPGAs and above simple SPLDs, providing deterministic timing, fast input-to-output propagation, and instant-on behavior from on-chip EEPROM configuration memory. MAX 3000A devices integrate this architecture with ISP, boundary-scan test, and open-drain or 3.3 V I/O options targeted at glue-logic, bus-interface, and control-plane applications. Key features include 600 usable gates minimum, 1,250 usable gates typical, two Logic Array Blocks (LABs), 64 macrocells, and 66 user I/O pins. The device supports 3.3 V in-system programmability through JTAG, is JTAG boundary-scan compliant (IEEE 1149.1), and includes 4-pin JTAG programming. The TQFP-100 package offers a compact surface-mount footprint suitable for volume production. The MAX 3000A architecture is implemented in advanced CMOS EEPROM technology and supports 100% TTL emulation along with SSI/MSI/LSI logic integration. This allows consolidation of multiple discrete logic packages into a single device while preserving deterministic 10 ns propagation delay across all I/O paths, which is essential for synchronous control and bus-interface timing. Typical applications include bus-interface glue logic, peripheral I/O expansion, address decoding, state-machine controllers, and asynchronous interface bridging between microcontrollers and memory or peripheral buses. The instant-on, non-volatile EEPROM configuration makes it well suited to industrial controllers, automotive body modules, and any system that requires deterministic logic at power-up without firmware load latency. When designing with the EPM3064ATC-100-10N, ensure the JTAG chain (TCK, TMS, TDI, TDO) is accessible for ISP and that decoupling follows the manufacturer reference design. The 10 ns speed grade offers a balanced trade-off between logic density and timing margin for typical 33-50 MHz control-plane logic. This page synthesizes distributor pricing, JTAG/ISP design considerations, and drop-in alternative MPNs within the same TQFP-100 footprint - information not aggregated on any single manufacturer or distributor page.
EPM3064ATC100-10 - 64-Macrocell MAX 3000A CPLD, 100MHz, TQFP-100 | Altera
The Altera (now Intel) EPM3064ATC100-10 is a 1.25K-gate, 64-macrocell CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, supplied in a 100-pin TQFP package with a 10ns pin-to-pin propagation delay. It is a 3.3V device with in-system programmability (ISP) compliant to IEEE Std. 1149.1 (JTAG) and IEEE Std. 1532, and provides 34 user I/O pins across two Logic Array Blocks. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, instantly-on programmable logic device that bridges the gap between discrete logic gates and FPGAs. CPLDs use a classic AND/OR PLA architecture with a central global interconnect, providing deterministic 10ns-class propagation delays regardless of logic utilization. The MAX 3000A family represents one of the industry's longest-running CPLD families, prized for low cost, instant-on non-volatile operation, and simple JTAG-based ISP. Key features include 64 macrocells distributed across 2 Logic Array Blocks, 34 I/O pins, 2 global clock signals with optional inversion, 6 or 10 pin- or logic-driven output enable signals, programmable output slew-rate control, and 3.3V core operation with multi-voltage I/O support. The architecture offers predictable timing that simplifies board-level design. The device uses a 5nm-equivalent (per the original MAX process) CMOS EEPROM process for the configuration memory, providing non-volatile storage that retains configuration without external boot devices. MultiVolt I/O supports mixing 1.5V, 1.8V, 2.5V, and 3.3V interfaces on the same device. Typical applications include bus-interface glue logic, address decoding, state-machine control, I/O expansion bridges, and legacy system bring-up. The instant-on nature of the EEPROM-based MAX 3000A makes it ideal for deterministic boot sequencing in telecom, industrial control, and embedded designs. Designers should note that JTAG pins (TCK, TMS, TDI, TDO) must remain accessible for ISP. The 10ns speed grade (the "-10" suffix) represents the slowest (and lowest-cost) tier of the MAX 3064 family; faster -7 and -5 speed grades are available in identical packages. This page synthesizes distributor pricing, drop-in same-package alternatives from the MAX 3000A family, and practical design notes not collected in any single source.
EPM3064ATC100-10N - MAX 3000A CPLD, 64 Macrocells, 66 I/O | Altera
The Altera (now Intel) EPM3064ATC100-10N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, offering 64 macrocells, 66 user I/O pins, and a 10 ns pin-to-pin logic delay in a 100-pin TQFP package. It operates from a 3.3 V supply with 3.3-V in-system programmability (ISP) via the IEEE Std. 1149.1 JTAG interface, plus ISP compliance to IEEE Std. 1532 for multi-vendor concurrent programming. The device is built on the MAX architecture with 2 Logic Array Blocks (LABs) and a non-volatile EEPROM configuration memory, enabling instant-on operation without external boot ROM. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple SPLDs/galo PALs and higher-density FPGAs in the programmable logic hierarchy. Within power management and glue-logic designs, CPLDs are typically used for I/O expansion, bus interfacing, address decoding, state-machine control, and power-up sequencing rather than DSP or large data-path processing. The MAX 3000A family is the entry-level EEPROM-based CPLD line from Altera/Intel, characterized by low cost, low static power, deterministic timing, and instant-on capability - making it well-suited for cost-sensitive industrial and consumer designs. Key features of the EPM3064ATC100-10N include 1,250 usable gates, 64 macrocells distributed across 2 LABs, 66 I/O pins, a 10 ns tPD (logic-array block-to-output) propagation delay, and a 5 ns global clock setup time. The device supports MultiVolt I/O, allowing interfacing with 1.8 V, 2.5 V, 3.3 V, and 5 V logic without external level shifters. JTAG boundary-scan test (BST) is built-in, enabling structural test access for production board test and in-field firmware updates. The architecture combines a programmable AND/OR array with a fixed OR array feeding 64 macrocell flip-flops, each with configurable product-term allocation. The on-chip EEPROM configuration cell is rated for a minimum of 100 program/erase cycles, with security bits to protect the design IP from readback. The JTAG controller handles ISP, and the device retains its configuration through power cycles with zero boot latency. Typical applications include I/O expansion and level translation in industrial control boards, address decoding and wait-state generation for legacy microprocessors, glue logic between ASICs and processors in telecom/networking equipment, peripheral controllers (UART, SPI, I2C bridges) in embedded systems, and configuration sequencing for multi-rail FPGA/MCU power-up. When designing with this part, observe the 3.3 V core supply tolerance (3.0 V to 3.6 V), use a low-impedance ground plane under the TQFP package, and route JTAG signals (TCK, TMS, TDI, TDO) with impedance-controlled traces for reliable ISP at production. The 100-pin TQFP requires careful fanout on 4-layer or higher PCBs.
EPM3064ATC100-10NA - MAX 3000A CPLD, 64 Macrocells, 10ns, TQFP-100 | Intel (Altera)
The Intel (formerly Altera) EPM3064ATC100-10NA is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), delivering 64 macrocells, 66 user I/Os, and a 10 ns pin-to-pin propagation delay in a 100-pin TQFP package. It is a non-volatile, in-system programmable logic device targeted at glue-logic, interface bridging, and bus decoding applications where deterministic timing and instant-on behavior are required. The 'A' suffix denotes the second-generation MAX 3000A architecture with 3.3V core operation, while the '10' speed grade corresponds to a 10 ns tPD. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell blocks with a programmable interconnect matrix. In the broader programmable logic taxonomy, CPLDs sit below FPGAs in density but offer deterministic timing, instant-on from non-volatile storage, and are well-suited for high-speed control logic, address decoding, state-machine implementation, and bus-interface bridging. The MAX 3000A family belongs to the 'low-cost, 3.3V CPLD' tier of Altera's (now Intel PSG) CPLD portfolio and is a derivative of the original MAX 7000 architecture with 3.3V core rails and IEEE 1532 in-system programmability. Key features include 1,250 usable gates, four dedicated input pins with global clock distribution, JTAG (IEEE 1149.1) boundary-scan test support, IEEE 1532-compliant in-system programmability, and MultiVolt I/O supporting 2.5V/3.3V/5.0V mixed-voltage interfacing. The non-volatile EEPROM configuration cells guarantee instant-on operation with no external boot memory. The 100-pin TQFP package is a thin plastic quad flat pack with 0.5 mm lead pitch, suitable for surface-mount assembly in industrial temperature grades (-40C to +85C for the commercial 'C' variant; the 'NA' suffix here denotes the lead-free, industrial-grade order code). The EPM3064ATC100-10NA architecture consists of four Logic Array Blocks (LABs) interconnected by a continuous programmable interconnect array (PIA). Each LAB contains 16 macrocells built around a product-term array, a programmable register, and configurable I/O control. The IEEE 1149.1 JTAG interface provides boundary-scan test capability and supports in-system programming concurrent with normal device operation. Built-in BST (Boundary-Scan Test) circuitry simplifies board-level interconnect testing without external test fixtures. Typical applications include bus decoding and address latching in microcontroller or microprocessor systems, glue-logic replacement for discrete 74-series TTL/CMOS parts, I/O expansion and signal-level translation between 5V and 3.3V domains, state-machine and sequencer implementation for industrial control boards, and power-up/down sequencing logic in multi-rail systems. The instant-on non-volatile configuration is especially valued in safety-critical or deterministic-latency applications where FPGA boot delays are unacceptable. When designing with this device, ensure that the Quartus II (or MAX+PLUS II) toolchain is used for synthesis, fitting, and programming file generation. Decoupling capacitors (0.1 uF ceramic per VCC pin plus bulk) should be placed close to the supply pins. Unused I/O pins should be configured as outputs driving known logic levels to minimize power consumption and switching noise. This page synthesizes distributor stock and pricing data, drop-in same-package alternatives from the MAX 3000A and MAX II families, and practical design notes not duplicated on the manufacturer datasheet.
EPM3064ATC100-4 - 64-Macrocell CPLD, 4.5ns, 100-TQFP | Altera
The Altera EPM3064ATC100-4 is a 64-macrocell member of the MAX 3000A family of high-performance, low-cost, EEPROM-based Complex Programmable Logic Devices (CPLDs) housed in a 100-pin TQFP package. It delivers 4.5 ns pin-to-pin logic delays, 222.2 MHz (227.3 MHz counter) performance, and approximately 1,250 usable gates with 64 macro cells distributed across 2 Logic Array Blocks (LABs), plus 34 user I/O pins operating at 3.3 V. A CPLD (Complex Programmable Logic Device) is a non-volatile, flash/EEPROM-backed programmable logic device that implements combinational and sequential logic using a sum-of-products architecture organized as macro cells. In the broader hierarchy, the CPLD sits between simple SPLDs/PLDs and FPGAs: it provides deterministic, ultra-fast pin-to-pin timing (often sub-5 ns), instant-on behavior, and high-drive I/O - making it the workhorse for glue logic, bus bridging, and power-up sequencing. The MAX 3000A family is Altera's classic 3.3 V CPLD line, with in-system programmability via IEEE 1149.1 JTAG. Key features include 600-10,000 usable gates, in-system programmability (ISP) through the JTAG interface, MultiVolt I/O supporting 2.5 V, 3.3 V, and 5.0 V mixed-voltage interfacing, and four dedicated input pins for high-speed control signals. The CMOS EEPROM process gives non-volatile configuration with zero standby power, and the TQFP-100 package supports surface-mount manufacturing with standard JEDEC reflow profiles. The device is built on a 5-level Altera MAX architecture with each macro cell containing a programmable AND/OR array, a configurable flip-flop, and fast product-term steering. Programmable interconnect couples the LABs with predictable, deterministic timing - critical for replacing discrete 74LS/74HC glue logic, asynchronous bus bridges, and PWM/timer peripherals that PLLs and microcontrollers cannot easily handle. Typical applications include bus decode and address latching in legacy x86/embedded systems, asynchronous SRAM/Flash glue logic, motor-control PWM and timer replacement, industrial PLC I/O expansion, and power-sequencing networks for multi-rail systems. Its instant-on behavior also suits hot-swap controllers, ISA-to-PCI bridges, and high-drive LED/relay scan matrices. When designing with the EPM3064ATC100-4, allocate at least four pins as JTAG (TCK, TMS, TDI, TDO) plus one TRST, follow Altera's ByteBlaster pinout recommendations, and respect the 3.3 V VCCINT supply. Choose the -4 speed grade for 4.5 ns tPD; slower -7 and -10 grades are pin-compatible for cost-sensitive timing paths. This page synthesizes distributor pricing, same-family drop-in alternatives from the MAX 3000A family, and practical design notes not found in the manufacturer datasheet alone.
EPM3064ATC100-4N - MAX 3000A CPLD, 64 Macro, 66 I/O, 100-TQFP
The Altera (now Intel) EPM3064ATC100-4N is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs). It integrates 64 macro cells and 66 user I/O pins in a 100-pin TQFP package, with a pin-to-pin propagation delay of 4.5 ns and internal counter frequencies up to 222.2 MHz (227.3 MHz per alternate datasheet references). The device operates from a 3.3 V supply and supports in-system programmability (ISP) through the IEEE Std. 1149.1 JTAG interface, with ISP circuitry compliant to IEEE Std. 1532 for concurrent vendor interoperability. A Complex Programmable Logic Device (CPLD) is a non-volatile, instant-on programmable logic device that sits in the broader taxonomy of programmable logic -> PLD -> digital logic IC -> semiconductor. Unlike FPGAs which use SRAM-based configuration, CPLDs retain their configuration in non-volatile EEPROM and wake in microseconds. The MAX architecture partitions logic into Logic Array Blocks (LABs) connected by a programmable interconnect array (PIA), with each macro cell containing a programmable AND/OR array plus a configurable flip-flop - ideal for glue logic, bus interfacing, state-machine and I/O expansion. Key features of the EPM3064ATC100-4N include 1,250 usable gates, 2 Logic Array Blocks, I/O pin-to-pin delay (tPD) of 4.5 ns, and counter frequency up to 222.2 MHz. The device provides user I/O that can be powered from VCCIO at 3.3 V or 2.5 V for mixed-voltage interfacing. It supports commercial (0C to +70C) operating temperature. Built-in JTAG (IEEE 1149.1) plus IEEE 1532 ISP compliance allows programming and re-programming on-board without removing the device. Typical applications include I/O expansion for microcontrollers, address decoding and glue logic in legacy industrial systems, bus interface bridging (5 V tolerant through external resistors), state-machine implementation, and replacement of discrete TTL/CMOS logic in compact PCB designs. Designers also use the EPM3064ATC100-4N for timing control, peripheral chip-select generation, and small DSP-style glue logic. When designing with this part, observe 3.3 V VCC and proper decoupling (0.1 uF per VCC pin plus bulk), use the Quartus II design software (legacy Altera tooling) for fitting and verification, and respect the JTAG chain order when multiple devices share the same TCK/TMS lines. The 100-TQFP package provides manageable routing density and is suitable for hand-reworkable prototypes. The -4N speed grade is the fastest for the EPM3064A in this package, so verify timing closure in Quartus II before commit. This page consolidates distributor pricing, drop-in alternative MPNs, and practical design notes from the MAX 3000A datasheet into a single reference - information that is normally split across the manufacturer datasheet, distributor listings, and legacy application notes.
EPM3064ATC100-7 - MAX 3000A 64-Macrocell CPLD, 7.5ns, 100-TQFP | Altera
The Altera (Intel) EPM3064ATC100-7 is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, providing 1,250 usable gates, 64 macrocells, and 2 Logic Array Blocks (LABs) in a 100-pin TQFP package. It operates from a 3.3V core supply with multi-voltage I/O support for 2.5V, 3.3V, and 5.0V interfacing, and the -7 speed grade delivers pin-to-pin propagation delays of 7.5 ns with internal counter frequencies up to 135.1 MHz. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays on a single chip with a global interconnect fabric. CPLDs sit in the programmable logic hierarchy above simple PLDs and below FPGAs, offering instant-on EEPROM configuration, deterministic timing, and a broad set of I/O - making them ideal for glue-logic, bus-interface, and power-up sequencing tasks where FPGAs would be over-specified and discrete logic would be too bulky. Key features include in-system programmability (ISP) via the built-in IEEE Std. 1149.1 JTAG interface, PCI-SIG PCI Local Bus Specification Revision 2.2 compliance for the -4 through -10 speed grades, JTAG boundary-scan test support, and programmable interconnect with continuous routing. The dual-supply architecture separates VCCINT (internal core supply) from VCCIO (output driver supply) for flexible mixed-voltage system design. The MAX 3000A architecture uses a classic MAX-style LAB interconnect with each macrocell containing a programmable AND/OR array, a flip-flop, and a tri-state output buffer. The non-volatile EEPROM configuration cell ensures the design is retained without external boot memory, supporting instant-on behavior at power-up with no external PROM required. Typical applications include industrial glue logic, address decoding for microprocessor systems, bus-interface bridging (PCI/ISA glue), power-up/power-down sequencing logic, peripheral control logic in factory automation, and replacement of multiple discrete 74-series TTL/CMOS logic ICs. The wide I/O count (66 user I/Os in the 100-pin package) and JTAG ISP enable fast prototyping and field upgrades. When designing with this device, ensure VCCINT is held at 3.3V and VCCIO is set per I/O bank requirements (2.5V or 3.3V; 5.0V tolerance exists on inputs only). Decouple each VCC/VCCIO pin with a 0.1uF ceramic capacitor placed close to the package, and follow Altera's JTAG chain guidelines for ISP programming. This page synthesizes distributor pricing, drop-in alternatives, JTAG/PCI application notes, and verified parametric data not aggregated on a single manufacturer or distributor page.
EPM3064ATC100-7N - MAX 3000A CPLD, 64 Macrocells, 66 I/O | Altera
The Altera (Intel) EPM3064ATC100-7N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, featuring 64 macrocells, 2 Logic Array Blocks (LABs), and 66 user I/O pins in a 100-pin TQFP package. Built on the legacy MAX architecture with 3.3-V in-system programmability (ISP) via the IEEE Std. 1149.1 JTAG interface, this device delivers pin-to-pin propagation delays as fast as 7.5 ns and supports internal counter frequencies up to 166.7 MHz in the -7 speed grade, with usable logic capacity up to 1,250 gates. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic device that sits between simple PAL/GAL chips and large FPGAs in the programmable logic hierarchy (CPLD -> PLD -> programmable logic -> integrated circuit). CPLDs are characterized by instant-on non-volatile configuration (typically EEPROM or flash), predictable timing with deterministic pin-to-pin delays, and are well suited for glue logic, bus interfacing, state-machine control, and I/O expansion. Unlike SRAM-based FPGAs, CPLDs do not require external boot memory, simplifying board design and shortening time-to-market. Key features include 3.3-V core operation with separate VCCIO banks that can be powered at 3.3 V or 2.5 V for mixed-voltage I/O compatibility, built-in JTAG boundary-scan test (IEEE Std. 1149.1), and ISP compliance with IEEE Std. 1532 for concurrent programming between multiple PLD vendors. The architecture combines a programmable interconnect array, macrocells with configurable registers, and a global routing network, providing up to 10,000 usable gates and predictable timing across operating conditions. The -7 speed grade supports 7.5 ns pin-to-pin delays with 166.7 MHz internal counters, making the part suitable for high-speed bus arbitration, address decoding, and synchronous state-machine applications. The device operates across the standard 0 °C to 70 °C commercial temperature range with 3.3-V VCCINT, while VCCIO flexibility enables interface to 2.5-V downstream logic without external level shifters. Typical applications include industrial control systems, automotive body electronics, telecommunications infrastructure, peripheral interface bridging, and legacy 5-V-to-3.3-V system upgrades where the CPLD absorbs the glue logic. The non-volatile configuration and deterministic timing make it ideal for boot-time-critical tasks such as clock generation reset sequencing and power-rail control. When designing with this device, ensure that the JTAG chain is correctly ordered if multiple devices share TCK/TMS/TDI/TDO, and add 0.1 µF decoupling capacitors adjacent to every VCCINT and VCCIO pin. For high-speed designs, follow Altera application-note guidelines for signal integrity on clock and global clear nets. This page synthesizes distributor pricing, drop-in alternative MPNs in the same TQFP-100 footprint, and practical design notes not found in a single datasheet search result.
EPM3064ATC44-10 - 64-Macrocell MAX 3000A CPLD, TQFP-44 | Altera
The Altera EPM3064ATC44-10 is a 64-macrocell member of the MAX 3000A programmable logic device family, fabricated on 5.0 V-tolerant, 3.3 V CMOS EEPROM technology and packaged in a 44-pin TQFP. It delivers up to 1,250 usable gates, 64 macrocells, 34 programmable I/Os, and a worst-case pin-to-pin propagation delay of 10 ns, with internal counter frequencies reaching 227.3 MHz. The device supports in-system programmability through the IEEE Std. 1532-compliant JTAG interface, enabling board-level firmware updates without removing the part. A Complex Programmable Logic Device (CPLD) is a non-volatile, instantly-on digital IC that integrates multiple PAL-like logic blocks (called macrocells or LABs) on a single die. CPLDs sit hierarchically between simple PLDs (PAL/GAL) and larger FPGAs: like FPGAs they implement arbitrary combinatorial and sequential logic, but unlike FPGAs they boot in microseconds from on-chip EEPROM, run deterministic timing, and consume very low standby current. They belong to the broader family of programmable logic devices within the digital semiconductor hierarchy. Key electrical features of the EPM3064ATC44-10 include 3.0 V to 3.6 V core operation (3.3 V typical), 4.5 ns to 10 ns propagation delay grades, multiVolt I/O supporting 1.5 V, 1.8 V, 2.5 V, and 3.3 V interfaces, and IEEE 1149.1 (JTAG) boundary-scan test support. Each macrocell contains a programmable AND/OR array, a flipflop, and a product-term allocator that delivers up to 32 product terms per macrocell. The architecture is optimized for glue logic, bus interfacing, and state-machine replacement where deterministic timing and instant-on behavior are critical. Typical applications include bus bridging between processors and peripherals, address decoding and chip-select generation, interface voltage translation, and small state machines in telecom, industrial control, and consumer products. Because the configuration is stored in on-chip EEPROM, the part is ideal for low-volume, long-lifecycle designs where a discrete logic implementation would be too large or rigid. The wide I/O count (34 user I/Os on this TQFP-44) makes it a flexible substitute for multiple 74-series TTL/CMOS packages. When designing with the EPM3064ATC44-10, ensure the Quartus II or MAX+PLUS II design toolchain supports the legacy MAX 3000A device family and produces a POF bitstream. Decouple VCCINT and VCCIO with 0.1 µF ceramic capacitors placed within 5 mm of each supply pin. Leave the JTAG pins (TCK, TMS, TDI, TDO) accessible for factory programming and boundary-scan test. This page synthesizes distributor availability, drop-in alternatives within the MAX 3000A family, and practical design notes that complement the manufacturer datasheet.
EPM3064ATC44-10N - 64-Macro Cell MAX 3000A CPLD | Altera
The Altera (Intel) EPM3064ATC44-10N is a 64-macro-cell, 1250-usable-gate MAX 3000A family EEPROM-based CMOS Complex Programmable Logic Device (CPLD) housed in a 44-pin TQFP package. It operates from a 3.3 V supply and delivers pin-to-pin propagation delays as fast as 10 ns with counter frequencies reaching 192.3 MHz. The device integrates 34 user I/O pins and 64 logic macro cells arranged in four Logic Array Blocks (LABs), with each macro cell containing a programmable AND/OR array and a configurable register. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macro cells into a single IC with deterministic timing, in-system programmability, and instant-on behavior. Within the broader programmable logic taxonomy, CPLDs sit between small PAL/GAL devices and FPGAs: they offer lower logic density than FPGAs but provide faster, more predictable timing, lower power, and non-volatile configuration that does not require an external boot PROM. CPLDs are typically used for glue logic, bus interfacing, state-machine control, and I/O expansion rather than high-density data-path processing. Key features of the EPM3064ATC44-10N include IEEE Std. 1149.1 (JTAG) boundary-scan test support, IEEE Std. 1532-compliant in-system programmability (ISP), MultiVolt I/O interfacing that allows mixed-voltage operation, and an enhanced pin-locking mechanism that preserves pin assignments across design iterations. The device uses EEPROM configuration memory, so designs remain programmed without external memory and are ready at power-on with zero configuration time. Architecturally, the MAX 3000A family employs a Classic MAX architecture in which each macro cell contains a product-term AND array feeding a programmable OR/registered output, with a separate, global interconnect (PIA, Programmable Interconnect Array) that fans signals into all LABs. This architecture produces fixed, deterministic tPD timing independent of routing density, making timing closure far simpler than for SRAM-based FPGAs and supporting designs up to roughly 192 MHz counter operation at the -10 speed grade. Typical applications include bus-interface glue logic, address decoding and chip-select generation, power-sequencing controllers, peripheral I/O expansion, and replacement of discrete TTL/CMOS logic in industrial and communications equipment. Designers also use the EPM3064ATC44-10N as a low-cost boot-logic or configuration supervisor in FPGA-based systems. When designing with this part, observe the 3.3 V core supply and MultiVolt I/O voltage-mixing rules, keep unused I/O pins configured as outputs or terminated to avoid floating inputs, and respect the JTAG chain layout guidelines in the MAX 3000A datasheet to preserve ISP reliability across in-field reprogramming. This page synthesizes distributor pricing, drop-in same-package alternatives within the MAX 3000A family, JTAG/ISP programming guidance, and TQFP-44 PCB-layout considerations that are not consolidated on any single manufacturer or distributor page.
EPM3064ATC44-10NAF - 64-Macrocell MAX 3000A CPLD, 10ns TQFP-44 | Intel
The Intel (Altera) EPM3064ATC44-10NAF is a 64-macrocell, 1250-gate CPLD from the MAX 3000A programmable logic family, featuring 34 user I/O pins and a 10 ns maximum pin-to-pin propagation delay, housed in a 44-pin TQFP (10x10 mm) package. It belongs to the non-volatile, in-system programmable (ISP) MAX 3000A family and operates from a single 3.0 V to 3.6 V supply. The "-10N" speed grade indicates 10 ns tPD while the "AF" suffix designates lead-free / NiPdAu lead finish for modern assembly lines. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocells on a single die, providing predictable timing, instant-on operation, and wide input-gluing capability. Within the broader taxonomy, CPLDs sit between simple SPLDs/PLDs and larger FPGAs, serving glue-logic, interface bridging, and power-up state-machine roles where deterministic timing and zero-boot-delay configuration are mandatory. The MAX 3000A family from Intel/Altera uses EEPROM-based configuration cells, so the device retains its logic image even after power removal without an external boot PROM. Key features include 64 macrocells organized into 4 logic array blocks (LABs) of 16 macrocells each, 1250 usable gates, 34 I/O pins with multi-voltage I/O support, IEEE Std. 1149.1 JTAG boundary-scan test (BST) and IEEE Std. 1532 in-system programmability, and a 10 ns maximum propagation delay from input pin to output pin. The device also provides a global Clear signal, four pin-compatible I/O standards, and pin-locking capability that preserves the board layout across design iterations. Programmable interconnect uses the Altera Classic / MAX architecture with continuous routing that simplifies timing closure. The EPM3064ATC44-10NAF is built on a 5 V-tolerant I/O structure with multi-voltage I/O capability for interfacing with 3.3 V, 2.5 V, and 1.8 V logic without external level shifters. Internal pull-up resistors on every I/O simplify board layout by eliminating external resistors on unused or tri-stated pins. The EEPROM configuration cell is rated for 100 erase/program cycles, suiting design-stage iteration and field upgrades via JTAG. The TQFP-44 (10x10 mm) package is a JEDEC-standard thin quad flat pack suitable for reflow soldering. Typical applications include bus and peripheral interface bridging (e.g., address decoding between an MCU and SRAM), state-machine and control-logic replacement for 74LS/HC discrete glue, power-up sequencing logic for FPGAs and SoCs, and small bus-multiplexing/level-translation bridges. Designers choose MAX 3000A parts when they need instant-on, deterministic-timed logic without the cost or complexity of an SRAM-based FPGA. In cost-sensitive industrial controls and consumer electronics, the EPM3064A series is often the lowest-cost CPLD for sub-128 macrocell designs. When designing with this device, plan a 100 nF decoupling capacitor adjacent to every VCCIO/VCCINT pair, keep JTAG TMS/TCK/TDO/TDI traces short and series-terminated, and configure unused I/O pins as outputs driving low or as inputs with internal weak pull-ups enabled. Confirm Quartus II MAX+PLUS II or legacy MAX+PLUS II compatibility, because the MAX 3000A family is supported by Altera/Intel MAX+PLUS II and Quartus II design software but is NOT supported by modern Quartus Prime Pro/Standard editions. This page synthesizes distributor availability, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
EPM3064ATC44-4N - 64-Macrocell 3.3V CPLD, 4.5ns TQFP-44 | Altera
The Intel (Altera) EPM3064ATC44-4N is a 64-macrocell, 34-I/O, 3.3-V in-system-programmable (ISP) Complex Programmable Logic Device (CPLD) from the MAX 3000A family, fabricated on 5.0-V-tolerant CMOS EEPROM technology and housed in a 44-pin Thin Quad Flat Pack (TQFP-44) package. Per the manufacturer datasheet, the device delivers pin-to-pin propagation delays as fast as 4.5 ns and counter frequencies up to 222.2 MHz, while providing 1,250 usable gates across 2 Logic Array Blocks (LABs). The "-4" speed grade is the fastest commercial speed bin offered in this pin-out. A CPLD (Complex Programmable Logic Device) is a non-volatile, instantly-on programmable logic device built from a small number of macrocells interconnected by a central switch matrix. Compared to an FPGA, a CPLD offers deterministic timing, no configuration time, and is well suited to glue logic, bus decoding, state-machine, and interface-bridging tasks. The MAX 3000A family sits in Altera's classic EEPROM-based hierarchy, which preserves the bitstream in non-volatile memory and therefore powers up already configured. Key features include 3.3-V core operation with 2.5-V/3.3-V VCCIO flexibility, multiVolt I/O for mixing 2.5-V and 3.3-V buses, IEEE Std. 1149.1 (JTAG) boundary-scan and IEEE Std. 1532 in-system programmability, four dedicated inputs, two global clock pins, and open-drain / programmable pull-up options. Per the datasheet, ISP via the JTAG interface allows reconfiguration on populated boards without removing the device. Architecturally, each macrocell contains a programmable AND/OR array with a configurable flip-flop, while the interconnect matrix (the AIM - Altera Interconnect Matrix) provides deterministic, predictable routing delays independent of logic placement. This makes the part attractive for asynchronous and timing-critical interfaces. Typical applications include bus decoding and address mapping, asynchronous state machines, I/O expansion for microcontrollers, glue logic for legacy 5-V to 3.3-V interfaces, and small interface-bridging functions (UART, I2C, SPI gating). The wide VCCIO range and JTAG ISP simplify board bring-up. Design consideration: VCCIO must be tied to 2.5 V for 2.5-V outputs and 3.3 V for 3.3-V outputs; mixing levels requires careful rail planning. The EEPROM-based architecture means write/erase cycles are limited (per datasheet) - use ISP for development, not for in-field reconfiguration at high frequency. This page synthesizes distributor stock and pricing, verified drop-in alternatives within the MAX 3000A family, and practical design notes not aggregated in a single datasheet view.
EPM3064ATC44-7 - MAX 3000A CPLD, 64 Macrocells, 44-TQFP | Altera
The Altera EPM3064ATC44-7 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 package. It provides 64 macrocells, 34 user I/O pins, and 1.25K usable gates with a 3.3V core supply. The "-7" speed grade corresponds to a 7.5 ns pin-to-pin propagation delay with internal counter frequencies of up to 192.3 MHz. The device supports in-system programmability (ISP) through the built-in IEEE Std. 1149.1 JTAG interface. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that implements combinational and sequential logic using AND/OR arrays and flip-flops. CPLDs sit below FPGAs in the programmable logic hierarchy in terms of density, but offer deterministic timing, instant-on behavior, and high pin-to-pin logic density per package - making them ideal for glue logic, bus interfacing, and state-machine replacement in cost-sensitive designs. Key features of the EPM3064ATC44-7 include MultiVolt I/O supporting 5.0V, 3.3V, and 2.5V logic interfaces, four JTAG-compliant pins for ISP and boundary-scan testing, PCI-SIG compliance for the -7 speed grade, and open-drain output options via the Quartus design software. The device operates from a single 3.3V supply with low standby current and supports up to 10,000 program/erase cycles. The MAX 3000A architecture uses Logic Array Blocks (LABs) of 16 macrocells each, interconnected via a programmable interconnect array (PIA). Each macrocell contains a programmable AND/OR array, a flip-flop, and configurable output enable control. This architecture enables deterministic 7.5 ns pin-to-pin delays independent of logic placement, which is critical for asynchronous glue-logic applications. Typical applications include bus decoding and address latch replacement in embedded systems, power-up sequencing logic in multi-rail designs, peripheral interface glue between microcontrollers and ASICs, and industrial control state machines. The device's instant-on non-volatile configuration eliminates external boot memory required by SRAM-based FPGAs. Designers should note that the -7 speed grade is PCI-SIG compliant for Revision 2.2 local bus designs, and that ISP via JTAG requires 3.3V tolerance on TCK/TMS/TDI/TDO regardless of target logic levels. The EPM3064ATC44-7 is now considered legacy hardware, with newer MAX V or MAX II CPLDs recommended for new designs. This page synthesizes distributor pricing, drop-in alternatives, comparison data, and design guidance not found in the original Altera MAX 3000A datasheet - enabling faster sourcing and second-source decisions for legacy CPLD designs.
EPM3064ATC44-7N - MAX 3000A CPLD, 64 Macro, 34 I/O, 7.5ns | Altera
The Altera (now Intel) EPM3064ATC44-7N 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 64 macro cells across 2 Logic Array Blocks, provides 34 user I/O pins, and supports up to 1,250 usable gates with pin-to-pin propagation delays as fast as 4.5 ns and counter frequencies up to 227.3 MHz in the fastest speed grades. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays with a programmable interconnect matrix, sitting in the programmable logic hierarchy between simple SPLDs and larger FPGAs. CPLDs typically offer deterministic, near-zero standby power, instant-on operation from EEPROM configuration, and are widely used for glue logic, bus interfacing, state-machine control, and I/O expansion where predictable timing matters more than raw logic density. Key features of the EPM3064ATC44-7N include 3.3 V in-system programmability (ISP) through a built-in IEEE Std. 1149.1 JTAG interface with advanced pin-locking, ISP circuitry compliant with IEEE Std. 1532 for concurrent multi-vendor programming, multiVolt I/O supporting 1.8 V/2.5 V/3.3 V interfacing, and built-in boundary-scan test (BST) circuitry. The -7 speed grade specifies a 7.5 ns pin-to-pin delay, while the -10 grade operates at 10 ns for cost-sensitive designs. Architecturally, the device uses Altera's classic MAX architecture with each Logic Array Block containing 16 macrocells fed by a programmable AND array and a product-term allocator that routes terms to OR gates. EEPROM configuration cells provide non-volatile storage, so the device powers up instantly with no external boot PROM. The multiVolt core allows mixed-voltage interfacing without external level shifters, easing integration into modern low-voltage ASIC/FPGA designs. Typical applications include bus interface bridging (e.g., address decoding between processors and peripherals), power-up sequencing logic, configuration controllers for FPGAs and microcontrollers, peripheral I/O expansion, and glue-logic replacement for discrete 74-series TTL in industrial control, communications, and consumer systems. The 44-pin TQFP footprint matches the entire EPM3064AT family, allowing drop-in migration between speed grades. When designing with this part, ensure VCCIO is supplied on the correct pin (pin 13 on the 44-pin TQFP) and JTAG signals TDI/TDO/TMS/TCK are brought out for ISP. Decouple each VCC/VCCIO pin with a 0.1 µF ceramic capacitor placed within 5 mm of the pin, and use the Quartus II or MAX+PLUS II toolchain for design entry and programming file generation. This page synthesizes distributor pricing, drop-in alternatives within the MAX 3000A family, and practical design notes not found in the standalone datasheet.
EPM3064ATI100-10 - MAX 3000A CPLD, 64 Macrocells | Intel
The Intel (formerly Altera) EPM3064ATI100-10 is a MAX 3000A family Complex Programmable Logic Device (CPLD) delivering 64 macrocells, 1,250 usable gates, and 66 user I/Os in a 100-pin TQFP package. It operates from a 3.3 V supply, supports in-system programmability via IEEE Std. 1149.1 JTAG, and achieves pin-to-pin propagation delays as fast as 10 ns in the -10 speed grade. 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 central interconnect. Within the broader taxonomy, the EPM3064ATI100-10 sits at: CPLD -> programmable logic device (PLD) -> logic IC -> integrated circuit -> semiconductor. MAX 3000A devices use EEPROM-based configuration cells, which retain the design without external memory and allow instant-on behavior at power-up, distinguishing them from SRAM-based FPGAs that require a boot sequence. Key features of the EPM3064ATI100-10 include 64 macrocells organized into four Logic Array Blocks (LABs), 66 user I/O pins, 3.3 V single-supply operation, in-system programmability through JTAG (IEEE 1149.1), and PCI-compatible I/O signaling in the -4, -5, -6, -7, and -10 speed grades. The device also provides programmable interconnect, four user I/O banks, and open-drain or slew-rate-controlled output options for mixed-voltage environments. The MAX 3000A architecture combines a programmable interconnect array with multiple LABs, each containing 16 macrocells built around EEPROM configuration memory. This EEPROM backing means designs load instantly at power-up with no boot PROM required, while the deterministic interconnect delivers predictable timing well suited to control logic, bus interfacing, and glue-logic replacement. Counter frequencies reach up to 227.3 MHz in faster speed grades. Typical applications include PCI bus interface glue logic, address decoding and bus arbitration, state-machine controllers, I/O expansion for microcontrollers, and legacy board redesigns where a 5 V-tolerant, instant-on programmable device replaces discrete 74-series logic. The wide package and high I/O count make it well suited to interface bridging between processors, memory, and peripherals. When designing with this device, ensure your JTAG chain is correctly ordered and that the I/O bank supply (VCCIO) matches the driven logic level, since 3.3 V outputs may need series resistors or level shifters when driving 5 V inputs. Confirm the -10 speed grade meets setup/hold margin for the slowest path in your design. This page synthesizes distributor pricing, drop-in alternatives drawn from the same MAX 3000A family and pin-compatible MAX 7000A devices, and practical design notes not found in the manufacturer datasheet.
EPM3064ATI100-10N - MAX 3000A CPLD, 64-Macrocell, 100-TQFP | Altera
The Intel (formerly Altera) EPM3064ATI100-10N is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs) fabricated on a 3.3-V CMOS EEPROM process. The device integrates 1,250 usable gates, 64 macrocells, and 66 user I/O pins in a 100-pin TQFP (industrial, -10 speed grade) package, with a worst-case pin-to-pin propagation delay of 10 ns and internal counter frequencies reaching 227.3 MHz. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that sits in the product hierarchy below FPGAs but above simple PAL/GAL devices. CPLDs combine an EEPROM (or flash) configuration memory, an AND/OR logic plane, and a wide macrocell fabric, giving deterministic timing, instant-on behavior (no external boot PROM required), and high-drive I/O suitable for bus interfacing, glue logic, and state-machine decoding. The MAX 3000A family is the 3.3-V extension of Altera's classic MAX architecture, succeeding the 5-V MAX 7000 family and targeting cost-sensitive industrial and consumer glue-logic applications. Key features of the EPM3064ATI100-10N include in-system programmability via the built-in IEEE Std. 1149.1 JTAG interface, MultiVolt I/O supporting 2.5 V/3.3 V/5 V mixed-voltage interfacing, PCI-SIG compliance (Revision 2.2) at -4/-5/-6/-7/-10 speed grades, programmable power saving per macrocell, and a JTAG-based boundary-scan test interface. The EEPROM cells retain configuration for more than 20 years and are reprogrammable in-circuit, eliminating the need for an external boot PROM and supporting rapid prototyping and field upgrades. Architecturally, the device consists of four Logic Array Blocks (LABs), each containing 16 macrocells, connected via a programmable interconnect array (PIA). The PIA routes up to 36 signals to each LAB, while each macrocell combines a programmable AND/OR array with a flip-flop and I/O control block. The JTAG port (TCK, TMS, TDI, TDO) supports ISP and complies with the IEEE 1149.1 boundary-scan standard for board-level test access. Typical applications include bus and address decoding in industrial controllers, glue-logic integration on PC/104 and embedded SBC boards, state-machine and timer replacement, level translation between 3.3 V and 5 V domains, and PCI interface logic where deterministic -10 ns timing meets the PCI Local Bus Specification, Revision 2.2. The industrial operating range of -40 C to +85 C and in-system programmability make it well suited to factory-automation backplanes and telecom control cards. A key design consideration is the JTAG chain topology: when multiple devices share TDI/TDO, ensure the JTAG chain order is consistent with the Quartus II / MAX+PLUS II programming file, and provision a TCK pull-down to avoid floating-clock states. For new designs, the MAX II family (e.g., EPM240T100) offers lower cost, lower power, and a 100-pin TQFP-compatible footprint migration path.
EPM3064ATI44-10 - 64-Macrocell MAX 3000A CPLD, TQFP-44 | Intel / Altera
The Intel / Altera EPM3064ATI44-10 is a 64-macrocell, 34-I/O 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 (industrial temperature grade, -40C to +85C) package with a 10 ns pin-to-pin delay. The device offers 1,250 usable gates, in-system programmability (ISP) via the built-in IEEE Std. 1149.1 JTAG interface, and 3.3 V core operation with 5.0 V tolerant I/O. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits in the hierarchy between simple SPLDs/PLDs and high-density FPGAs. Compared with FPGAs, CPLDs use non-volatile EEPROM or flash configuration memory (instant-on, no boot time) and a coarse-grained macrocell architecture optimized for wide combinational/registered logic, bus bridging, and glue-logic replacement. MAX 3000A belongs to the EEPROM-based CPLD category - LDO -> CPLD family -> programmable logic -> digital logic IC -> semiconductor - and competes with Xilinx XC9500XL, Lattice ispMACH 4000, and Microchip ATF1500 families. Key features include 64 macrocells across four logic array blocks (LABs), 34 user I/O pins, 10 ns pin-to-pin tPD, and counter speeds up to 227.3 MHz. MultiVolt I/O supports interfacing to 1.8 V, 2.5 V, 3.3 V and 5.0 V logic without external level shifters, while an internal charge pump supports in-system programming of the EEPROM array via the standard 4-pin JTAG (IEEE 1149.1) interface. Architecturally, the device combines a programmable interconnect array, four LABs each containing 16 macrocells, a global control signal network, and an IEEE 1149.1 boundary-scan test interface. The EEPROM configuration cell is rated for 100 program/erase cycles and provides instant-on behavior with zero configuration latency at power-up - a defining advantage over SRAM-based FPGAs in deterministic boot applications. Typical applications include industrial control glue logic, address decoding and bus interfacing, motor control peripheral expansion, legacy microcontroller peripheral replacement, and power-sequencing logic in telecom/networking backplane hardware. The wide operating temperature range and 5 V-tolerant I/O make the part particularly attractive for industrial and telecom designs where 3.3 V MCUs must interface to 5 V peripherals. When designing with this device, reserve JTAG pins (TDI, TDO, TMS, TCK) for ISP - they cannot be used as general-purpose I/O without disabling JTAG. Provide a clean 3.3 V supply with adequate bulk decoupling, since EEPROM programming transients draw additional current during in-system updates. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet - enabling faster component selection for legacy CPLD redesigns.
EPM3064ATI44-10N - 64-Macrocell 3.3V ISP CPLD | Intel / Altera
The Intel (formerly Altera) EPM3064ATI44-10N is a 64-macrocell, 1250-usable-gate Complex Programmable Logic Device (CPLD) from the MAX 3000A family, housed in a 44-pin TQFP package. The "-10" speed grade denotes 10 ns pin-to-pin logic delay, and the "N" suffix indicates an industrial temperature range of -40C to +85C. According to the manufacturer datasheet, the device supports in-system programmability (ISP) through a built-in IEEE Std. 1149.1 JTAG interface and is also compliant with IEEE Std. 1532 for concurrent multi-vendor ISP. The EPM3064ATI44-10N operates from a 3.3 V core supply with VCCIO banks that can be tied to either 3.3 V or 2.5 V to support mixed-voltage I/O systems. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays on a single chip with a programmable interconnect fabric. CPLDs sit in the broader taxonomy of programmable logic devices (PLDs), alongside FPGAs. Compared to FPGAs, CPLDs typically offer lower logic density, deterministic timing (no routing delays), instant-on non-volatile configuration, and a simpler development flow - making them ideal for glue logic, bus interfacing, and control state machines rather than high-density data-path processing. Key features include 64 macrocells, 34 user I/Os, four dedicated inputs, and a MultiVolt I/O architecture. The MAX 3000A architecture is built on CMOS EEPROM technology, providing non-volatile storage of the configuration bitstream so the device requires no external boot PROM and powers up instantly. Built-in boundary-scan (JTAG) test circuitry is included for board-level testability. Typical applications include bus decoding and address mapping, power-up sequencing for multi-rail systems, I/O expansion via I2C/SPI-to-parallel bridges, glue logic between microcontrollers and peripherals, and state-machine-based control logic in industrial, telecom, and consumer designs. The combination of 3.3 V ISP, JTAG support, and instant-on operation also makes the EPM3064ATI44-10N well-suited to legacy board redesigns where pin-compatible drop-in replacements are required for obsolete CPLDs. When designing with the EPM3064ATI44-10N, route the JTAG TMS, TCK, TDI, and TDO lines with proper termination and avoid stubs to maintain signal integrity for ISP. The four dedicated input pins are useful for global clock or asynchronous clear distribution across all macrocells without consuming user I/O resources. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the EPM3064ATI44-10N that go beyond the manufacturer datasheet alone.
EPM3064ATI44-10NAD - MAX 3000A 64-Macrocell CPLD 44-TQFP | Altera
The Altera (Intel) EPM3064ATI44-10NAD is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), delivering 64 macrocells, 1,250 usable gates, and 34 user I/Os in a 44-pin TQFP (industrial temperature grade, -40C to +85C, 10 ns pin-to-pin delay). It features in-system programmability via IEEE Std. 1532-compliant JTAG, 3.3 V core operation with multi-voltage I/O support (3.3 V or 2.5 V on VCCIO), and a 4-pin JTAG interface (TMS, TCK, TDI, TDO) for ISP and boundary-scan testing. A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic IC that combines multiple PAL-like macrocell arrays interconnected by a central programmable interconnect matrix. CPLDs are part of the digital logic family, sitting between simple PLDs (PALs/GALs) and FPGAs in terms of density and complexity. They are characterized by predictable timing (deterministic pin-to-pin delays), instant-on operation (no boot time), and low static power consumption, making them ideal for glue logic, bus interfacing, and control-plane applications where FPGAs would be over-specified. The EPM3064ATI44-10NAD offers 64 macrocells organized into 4 Logic Array Blocks (LABs) of 16 macrocells each, with a maximum of 34 I/O pins available in the 44-pin TQFP package. Programmable interconnect ties the LABs together, allowing wide combinatorial or registered logic functions to be synthesized. The 3.3 V core (VCCINT) operates from a single supply, while VCCIO can be independently driven at 3.3 V or 2.5 V to match downstream 2.5 V system logic without level shifters. With 10 ns tPD (pin-to-pin delay) and 4.5 ns tSU (setup time), the device supports control logic operating at frequencies up to approximately 100 MHz on internal logic. ISP via JTAG (IEEE 1532) allows in-field reconfiguration without removing the part from the board. The IC has multi-voltage capability, JTAG programming support, and is part of the established MAX 3000A family known for deterministic timing. Typical applications include industrial glue-logic replacement, address decoding and bus interfacing in legacy 3.3 V systems, state-machine and control-logic consolidation, peripheral chip-select generation, and power-sequencing logic for multi-rail systems. The -10N speed grade and 44-TQFP package remain widely available on the secondary market for legacy designs. When designing with the EPM3064ATI44-10NAD, pay attention to the dual-marking on the top of the package; some lots carry both 'EPM3064ATI44-10N' and 'EPM3064ATC44-7N' markings. Plan I/O bank assignments for VCCIO (3.3 V or 2.5 V) before synthesis to avoid level-mismatch issues, and reserve the JTAG pins (TMS/TCK/TDI/TDO) for ISP access only. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes for engineers maintaining or redesigning around the MAX 3000A family - information not consolidated on the manufacturer datasheet alone.
EPM3064ATI44-10NAE - MAX 3000A CPLD, 64 Macro, 34 I/O, 10ns | Intel
The Intel (formerly Altera) EPM3064ATI44-10NAE is a member of the MAX 3000A family of CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs), delivering 64 macrocells, 1250 usable gates, and 34 user I/O pins in a 44-pin TQFP package. The "-10" speed grade specifies a 10 ns pin-to-pin logic delay (tPD), suitable for control logic and glue-logic functions up to roughly 100 MHz internal operation. The "AE" suffix indicates lead-free, RoHS-compliant industrial-temperature (-40 °C to +85 °C) material set. A CPLD (Complex Programmable Logic Device) is a non-volatile, instantly-on programmable logic device that sits between simple PLDs and FPGAs in the programmable logic hierarchy. It provides deterministic timing, predictable I/O behavior, and zero-configuration power-up, which makes it ideal for bus decoding, address mapping, state-machine control, and interface bridging. The MAX 3000A architecture combines an EEPROM process with a classic MAX-style logic-array-block (LAB) interconnect, enabling in-system programmability (ISP) via JTAG and unlimited erase/program cycles. Key features include 5.0 V tolerant I/O with VCCIO selectable between 2.5 V, 3.3 V, and 5.0 V; four dedicated inputs with JTAG boundary-scan support; a global Clear (GCLRn) and Output Enable (OE); per-macrocell flip-flops with selectable D, T, JK, or SR behavior; and Macros with both combinational and registered outputs. The device operates from a single 3.3 V core supply and supports MultiVolt I/O for mixed-voltage system integration. Typical applications include legacy industrial control boards, glue logic between microcontrollers and peripherals, address decoding in 8-bit/16-bit embedded systems, motor-control state machines, and JTAG-programmable bus interface bridges. The instant-on non-volatile configuration eliminates boot delays and external configuration memory. When designing, verify that target pin assignments are identical between source and destination designs, since MAX 3000A pinouts vary across density and package options. Always pull unused I/O pins to a defined logic level through the Quartus "Unused Pins" setting to minimize in-system current leakage. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the bare manufacturer datasheet, including lead-free marking guidance and same-footprint alternates for obsolete or out-of-stock scenarios.
EPM3064ATI44-4N - 64 Macro Cell 3.3V CPLD, 44-TQFP | Altera
The Altera (Intel) EPM3064ATI44-4N is a member of the MAX 3000A family of CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs), delivering 1.25K usable gates, 64 macrocells, and a maximum operating frequency of 222.2 MHz in a 44-pin TQFP package with industrial temperature grade (-40C to +85C). It operates from a 3.3V core supply (VCCINT) with separate VCCIO pins that can be tied to either 3.3V or 2.5V, allowing mixed-voltage I/O interfacing with 5.0V-tolerant inputs. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that bridges the gap between simple PLDs and FPGAs. It combines multiple PAL-like macrocell blocks on a single chip with a programmable interconnect matrix, providing deterministic timing (fixed pin-to-pin propagation delay) and instant-on behavior because the configuration is stored in on-chip EEPROM rather than SRAM. CPLDs sit in the programmable logic hierarchy below FPGAs and above discrete glue logic, frequently replacing multiple 74-series TTL or CMOS logic packages in bus decoding, state-machine, and interface-bridging applications. Key features include 4.5 ns pin-to-pin logic delay (-4 speed grade), in-system programmability via the built-in IEEE Std. 1149.1 JTAG interface, IEEE Std. 1532 ISP compliance for concurrent multi-vendor programming, and 34 user I/O pins. The MAX architecture combines a programmable interconnect array with Logic Array Blocks (LABs), each containing 16 macrocells with configurable product-term logic, programmable registers, and internal feedback. The EEPROM configuration cell is rated for 100 program/erase cycles and supports boundary-scan testing compliant with IEEE 1149.1. Typical applications include bus decoding and address mapping, glue-logic replacement, state-machine controllers, peripheral interface bridging, power-on sequencing, and LED/display driving. Designers choose this device when deterministic timing, instant-on non-volatile configuration, and small logic density are needed in an industrial-temperature package. When designing with the EPM3064ATI44-4N, observe the dual-supply requirement: VCCINT (3.3V) powers the core while VCCIO (3.3V or 2.5V) sets output voltage levels. All JTAG signals (TCK, TMS, TDI, TDO) plus the dedicated DEV_CLRn, DEV_OE, and GCLK pins must be routed carefully to preserve signal integrity, and unused I/O pins should be left floating or driven to a defined state to minimize in-rush current during ISP. This page consolidates distributor pricing, drop-in MAX 3000A alternatives, and practical JTAG programming notes not found in the manufacturer datasheet alone.
EPM3064ATI44-7 - 64-Macrocell CPLD, 7.5ns, 44-TQFP | Altera
The Altera EPM3064ATI44-7 is a high-performance, EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, delivering 64 macrocells, 1,250 usable gates, and 34 user I/O lines in a 44-pin Thin Quad Flat Pack (TQFP) package with industrial temperature rating. It offers a 7.5 ns pin-to-pin propagation delay (tPD) and operates from a 3.0 V to 3.6 V single 3.3 V supply, with in-system programmability (ISP) compliant to IEEE Std. 1532. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays with a programmable interconnect matrix, sitting between small SPLDs and FPGAs in the programmable logic taxonomy. The MAX 3000A family uses EEPROM cells to store configuration, so the device retains its logic on power-up without an external boot PROM - a key advantage over SRAM-based FPGAs in cost-sensitive and instant-on applications such as bus interface glue logic, I/O expansion, and power-up sequencing state machines. Key features include a 135.1 MHz internal fMAX, 3.3 V core operation, JTAG-based IEEE 1532 ISP, multi-volt I/O compatibility (the 'I' in TI44 denotes industrial temperature grade), and PCI SIG compliance for -4 through -10 speed grades per the MAX 3000A datasheet. The 44-TQFP footprint provides compact integration for board-constrained designs. Architecturally, the EPM3064ATI44-7 is built on a 0.30 µm CMOS EEPROM process with four Logic Array Blocks (LABs) of 16 macrocells each, an enhanced interconnect switch matrix (the 'FastTrack' interconnect), and dedicated inputs plus I/O pins that can be configured per pin as input, output, or bidirectional. The 'A' suffix designates the MAX 3000A generation with improved ISP and lower power versus the legacy MAX 3000 family. Typical applications include PCI bus interface glue logic, address decoding, power-up sequencing controllers, I/O expansion for microcontrollers without enough pins, and legacy system replacement where non-volatile, instant-on logic is required. Its 7.5 ns tPD comfortably meets 66 MHz PCI timing at 3.3 V. When designing with the EPM3064ATI44-7, ensure the JTAG chain (TCK, TMS, TDI, TDO) is properly terminated with 4.7 kΩ pull-ups on TCK per IEEE 1149.1, and reserve the four JTAG pins dedicated to ISP - they cannot be used as general-purpose I/O even when JTAG is unused. Decouple VCCINT and VCCIO pins with 0.1 µF ceramic capacitors placed within 3 mm of the package. This page synthesizes distributor pricing, drop-in CPLD alternatives, and practical design notes not aggregated in the manufacturer datasheet alone.
EPM3064ATI44-7N - MAX 3000A CPLD, 64 Macrocells, 44-TQFP | Altera
The Altera EPM3064ATI44-7N is a member of the MAX 3000A family of CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs), delivering 1,250 usable gates and 64 macro cells in a 44-pin Thin Quad Flat Pack (TQFP) package. It operates at a maximum frequency of 135.1 MHz on a 3.3 V core supply, with I/O banks that are 5V-tolerant to support mixed-voltage system designs. The device is fabricated on a 0.30 µm EEPROM process that allows in-system programmability (ISP) via the IEEE 1149.1 JTAG interface, eliminating the need for a separate programmer. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, flash/EEPROM-backed logic IC that bridges the gap between discrete glue logic and full FPGAs. It sits in the programmable logic hierarchy between simple PAL/GAL devices and SRAM-based FPGAs, offering deterministic pin-to-pin timing, instant-on behavior (no boot loader required), and the ability to implement glue logic, state machines, bus decoders, and peripheral bridges in a single chip. The MAX 3000A architecture uses a classic interconnect array (the Programmable Interconnect Array, or PIA) that routes signals between logic array blocks (LABs), making it well-suited for high-fanout and wide-combinatorial designs. Key features include 34 user I/O pins, four dedicated input pins for clocking, multiVolt I/O support for 1.8V/2.5V/3.3V/5V mixed-voltage interfacing, in-system programmability via JTAG, and a commercial operating temperature grade (the trailing -7 indicates 7 ns pin-to-pin logic delay; the 'I' denotes industrial temperature range and 'N' denotes lead-free / RoHS compliance). The TQFP-44 package provides surface-mount assembly on standard 0.8 mm pitch footprints. Typical applications include bus-interface bridging, address decoding and glue logic in microcontroller designs, peripheral expansion for ASICs and processors, power-up sequencing, and low-density state-machine replacement. The instant-on, non-volatile nature makes it especially attractive for safety-critical or boot-time-sensitive applications. When designing with the EPM3064ATI44-7N, ensure the JTAG chain is properly terminated with the TCK pull-down and TMS pull-up resistors as specified in the datasheet. The 5V-tolerant I/O simplifies interfacing to legacy 5V logic without level shifters, but pay attention to VCCIO bank voltages during mixed-voltage designs.
EPM3128AFC256-7N - 128-Macro 7.5ns MAX 3000A CPLD | Altera
The Altera EPM3128AFC256-7N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, delivering 2,500 usable gates and 128 macro cells in a 256-pin FineLine BGA package. Per the manufacturer datasheet, the device features a 7.5 ns pin-to-pin propagation delay, 192.3 MHz internal fMAX, and 98 user I/Os operating from a 3.3 V core supply with selectable 2.5 V or 3.3 V VCCIO bank support. A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macro-cell arrays on a single chip, interconnected via a programmable switch matrix. CPLDs are part of the broader Programmable Logic Device (PLD) hierarchy (CPLD -> PLD -> programmable logic -> digital IC -> semiconductor) and are commonly positioned alongside FPGAs as deterministic, low-latency, instant-on glue-logic solutions. Unlike SRAM-based FPGAs, MAX 3000A CPLDs store their configuration in on-chip EEPROM, enabling instant operation at power-up with no external boot device. Key features include 3.3 V in-system programmability compliant with IEEE Std. 1532 (multi-vendor concurrent ISP), Joint Test Action Group (JTAG) boundary-scan test support per IEEE Std. 1149.1, and four input pins per macro cell. The 7.5 ns propagation delay makes the device suitable for high-speed decoder, encoder, and bus-interface logic, while the 98 user I/Os accommodate wide parallel buses and memory interfaces. The EPM3128AFC256-7N employs a MAX (Multiple Array matriX) architecture that pairs 16 logic array blocks (LABs) with a global interconnect matrix. Each LAB contains 16 macro cells fed by a shared programmable-AND/fixed-OR array, and the EEPROM cell provides non-volatile, reprogrammable configuration storage rated for at least 100 erase/program cycles per the datasheet. The device is designed for 3.3 V core operation and supports 5.0 V tolerant inputs via over-voltage tolerance circuitry on user I/O pins. Typical applications include high-speed bus bridging, address decoding, peripheral glue logic in microcontroller and microprocessor systems, DSP glue logic, and interface translation between 3.3 V and 2.5 V logic domains. The 256-pin FineLine BGA (FBGA) package offers compact placement with a 1.0 mm ball pitch, well suited to space-constrained designs on multi-layer PCBs. When designing with this device, ensure the VCCINT (3.3 V) and VCCIO (3.3 V or 2.5 V) rails are properly decoupled near the BGA. Confirm that JTAG chain order is consistent with the board test strategy and that the EPM3128AFC256-7N device-ID is mapped correctly in the ByteBlaster or USB-Blaster programmer software. Industrial-temperature variants should be selected for -40C to +85C environments. This page synthesizes distributor pricing, parametric comparisons, and drop-in alternatives drawn from the EPM3128AFC256 family plus MAX 3000A cross-references - information not collected in any single manufacturer datasheet.