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Products (39,000+)

EPM3128ATC100-7N - MAX 3000A 128-Macrocell CPLD, 7.5 ns, TQFP-100 | Intel (Altera)
EPM3128ATC100-7N

EPM3128ATC100-7N - MAX 3000A 128-Macrocell CPLD, 7.5 ns, TQFP-100 | Intel (Altera)

The Intel (formerly Altera) EPM3128ATC100-7N is a 128-macrocell member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs), supplied in a 100-pin TQFP package with 80 usable I/Os. Built on Altera's MAX architecture, the device supports up to 10,000 usable gates with pin-to-pin delays as fast as 7.5 ns in the -7 speed grade and counter frequencies up to 227.3 MHz. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like logic blocks with a programmable interconnect matrix, providing deterministic, instant-on glue logic and I/O expansion. Within the programmable-logic taxonomy, CPLDs sit alongside FPGAs as the highest-density members of the programmable-logic hierarchy, but they excel at predictable timing, fast input-to-output propagation, and operation without external configuration memory - features that make them ideal for bus interfacing, address decoding, and control logic. Key features include 3.3-V core operation with MultiVolt I/O supporting 5.0-V, 3.3-V, and 2.5-V logic levels, in-system programmability (ISP) through the IEEE 1532 / JTAG interface, and a 4.5-ns pin-to-pin delay available on faster speed grades. The device offers four dedicated inputs and a global clear capability, and its non-volatile EEPROM cells retain configuration without a boot PROM. Architecturally, the EPM3128ATC100-7N implements 128 macrocells organized into Logic Array Blocks (LABs) with a programmable AND/OR array and product-term allocation. The MAX 3000A family shares a common architecture with MAX 7000/7000AE devices, which simplifies design migration through Altera's legacy MAX+PLUS II and Quartus II toolchains. Typical applications include address decoding and bus interfacing in microcontroller and DSP systems, glue-logic consolidation in industrial controllers, peripheral I/O expansion, and legacy system modernization where instant-on deterministic logic is required. Designers also deploy it in PCI bus interface glue logic, motor-control feedback conditioning, and discrete-logic replacement on legacy boards. When designing with this device, ensure 3.3-V core supply stability with adequate bulk decoupling near the TQFP-100 power pins. Verify that I/O bank voltage rails match the driven/received logic levels (5.0-V tolerant I/O on a 3.3-V VCCIO is supported, but not vice versa). For new designs, consider MAX II or MAX V devices for lower power and migration continuity. This page synthesizes distributor pricing, drop-in alternatives from the Site MPN list, and practical design notes not found in the manufacturer datasheet alone, giving procurement and engineering teams a single decision-grade reference.

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EPM3128ATC144-10 - 128-Macro MAX 3000A CPLD | Altera | TQFP-144
EPM3128ATC144-10

EPM3128ATC144-10 - 128-Macro MAX 3000A CPLD | Altera | TQFP-144

The Intel (formerly Altera) EPM3128ATC144-10 is a high-performance, low-cost 3.3V CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, packaged in a 144-pin TQFP (TQ144) and offering 128 macro cells with 96 user I/Os. According to the MAX 3000A family datasheet, this device provides approximately 2,500 usable gates and a pin-to-pin propagation delay of 10 ns (speed grade -10), making it well-suited for high-volume glue-logic, bus-interface, and state-machine applications. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that sits between simple 22V10-style PAL/GAL devices and larger FPGAs. CPLDs use a coarse-grained architecture of macro cells interconnected by a central global interconnect, with on-chip EEPROM (or flash) configuration memory. They typically offer very predictable timing (fixed pin-to-pin delays), instant-on behavior, and high drive capability, making them ideal for I/O expansion, address decoding, bus arbitration, and power-sequencing glue logic. Within the programmable logic taxonomy, a CPLD belongs to the broader class of programmable logic devices (PLDs), which themselves are a subset of standard logic ICs. Key features of the EPM3128ATC144-10 include 3.3V in-system programmability (ISP) compliant with the IEEE Std. 1532 specification, a JTAG boundary-scan test interface (IEEE Std. 1149.1), and counter speeds of up to 227.3 MHz on internal logic. The device supports multi-voltage I/O operation, allowing its I/O pins to interface with 1.5V, 1.8V, 2.5V, and 3.3V logic families. The MAX 3000A architecture combines deterministic timing with low power consumption (standby current typically in the microampere range) and industrial temperature-grade options for harsh environments. Architecturally, the EPM3128ATC144-10 divides its 128 macro cells into four Logic Array Blocks (LABs), each containing 16 macro cells. Each macro cell integrates a programmable AND/OR array with a configurable flip-flop, enabling efficient implementation of both combinational and registered logic. The central interconnect routes signals between LABs and to the I/O pins with a fixed, deterministic delay that does not depend on routing density. Typical applications include I/O expansion for microcontrollers and ASICs, address decoding for memory and peripheral buses, glue logic between processors and peripherals, state-machine controllers in industrial automation, bus-interface bridges (PCI to ISA, parallel-to-serial conversion), and power-supply sequencing in multi-rail systems. Its instant-on non-volatile configuration is particularly valuable in systems that must be operational immediately after power-up without firmware loading delays. When designing with the EPM3128ATC144-10, ensure that your JTAG chain ordering matches the device's TDI-to-TDO sequence and that the ISP programming voltage timing complies with IEEE 1532 requirements. A common pitfall is using the wrong I/O bank voltage configuration for mixed-voltage systems - consult the MAX 3000A datasheet to confirm each I/O bank's supply rail. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers quickly evaluate the EPM3128ATC144-10 for new designs and legacy maintenance.

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EPM3128ATC144-10N - 128-Macro MAX 3000A CPLD, 144-TQFP | Intel
EPM3128ATC144-10N

EPM3128ATC144-10N - 128-Macro MAX 3000A CPLD, 144-TQFP | Intel

The Intel EPM3128ATC144-10N is a 128-macrocell member of the MAX 3000A family of in-system-programmable (ISP) CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs). It integrates up to 2,500 usable gates, 128 macrocells, and 96 user I/Os in a 144-pin Thin Quad Flat Pack (TQFP) package, operating from a single 3.3 V supply. The -10 speed grade delivers a pin-to-pin propagation delay (tPD) of 10 ns and counter frequencies up to 98 MHz. 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 between simple SPLDs/PALs and FPGAs in the programmable-logic hierarchy, offering deterministic timing (fixed pin-to-pin delay), instant-on EEPROM configuration, and simple integration of glue logic, state machines, and bus interfaces. MAX 3000A devices target low-cost, high-volume glue-logic, interface bridging, and bus-decoding applications where predictable timing and ISP convenience outweigh the density of an FPGA. Key features of the EPM3128ATC144-10N include 128 macrocells organized into 8 Logic Array Blocks (LABs), a MultiVolt I/O interface that supports 3.3 V, 2.5 V, and 1.8 V logic levels on the same device, built-in boundary-scan test (BST) circuitry compliant with IEEE 1149.1 (JTAG), and ISP circuitry compliant with IEEE 1532. The architecture also provides four pin-locked JTAG instructions, JTAG-based in-system programming, and an open-drain or programmable pull-up option on every I/O pin. The MAX 3000A architecture uses EEPROM-based configuration cells, allowing instant-on behavior at power-up with no external configuration memory. Each macrocell contains a programmable AND/OR array, a flip-flop with selectable clear/clock/preset, and a wide range of product-term allocation options including parallel expanders and shareable expanders. The global interconnect matrix provides predictable, fixed-delay paths from any I/O pin to any macrocell — a key advantage over SRAM-based FPGAs in real-time control loops. Typical applications include bus-interface bridging (e.g., 8-bit/16-bit microcontroller-to-peripheral glue), address decoding and chip-select generation, power-sequencing logic, state-machine replacement for discrete 74-series logic, and JTAG-based board-level test integration. The wide MultiVolt I/O range also makes the part attractive as a level shifter between 5 V legacy devices and 3.3 V/1.8 V processors. When designing with this device, allocate I/O pins carefully during logic synthesis to avoid routing congestion and respect the 96-user-I/O limit when assigning bank-level voltage references. Decoupling should follow the MAX 3000A reference design: a 0.1 µF ceramic capacitor on every VCCIO bank pin placed within 5 mm of the package, with one bulk 10 µF tantalum or ceramic cap on the VCCINT rail. This page synthesizes verified distributor pricing, same-package drop-in alternatives, and practical design notes that complement the manufacturer datasheet.

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EPM3128ATC144-5 - MAX 3000A CPLD, 128 Macrocells, 5ns | Altera
EPM3128ATC144-5

EPM3128ATC144-5 - MAX 3000A CPLD, 128 Macrocells, 5ns | Altera

The Altera EPM3128ATC144-5 is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based complex programmable logic devices (CPLDs), delivering 128 macrocells, 2,500 system gates, and a 7.5 ns propagation delay in a 144-pin TQFP (TQ144) package rated for commercial 0C to 70C operation. Built on a multi-volt, multi-vendor in-system programmable (ISP) architecture, the device operates from a 3.3 V core supply and supports 5.0 V, 3.3 V, and 2.5 V multi-volt I/O interfacing, allowing direct connection to legacy and modern logic families without external level shifters. The MAX 3000A non-volatile ISP is compliant with the IEEE Std. 1532 specification, allowing concurrent ISP from multiple PLD vendors. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that combines multiple PAL-like macrocell arrays on a single die, connected through a programmable interconnect matrix. The MAX 3000A family belongs to the broader hierarchy: CPLD -> programmable logic device (PLD) -> logic IC -> semiconductor. CPLDs are typically chosen over FPGAs for glue-logic, bus-interface, state-machine, and power-up deterministic applications because their EEPROM configuration cells boot in microseconds, not milliseconds, and retain state without external boot memory. Key features include 128 macrocells arranged in 8 logic array blocks (LABs), 250 usable I/O pins within the package (with 96 user I/Os exposed externally per the 144-pin TQFP), two global clock networks with clear and clock-enable control on every register, programmable interconnect, JTAG boundary-scan testing, and built-in IEEE 1149.1 (JTAG) support. The -5 speed grade corresponds to a 7.5 ns pin-to-pin propagation delay (tPD), supporting designs with up to 192.3 MHz internal counter performance. Power consumption is typically 130 mA at 3.3 V, with standby current as low as 5 mA. The architecture is built on 0.30 um CMOS EEPROM technology with four layers of metal interconnect, exposing the user to a deterministic timing model. The MAX 3000A delivers predictable, simulator-friendly timing across Pterms, LABs, and the interconnect matrix (PIA), with no hidden routing delays - a property that distinguishes it from SRAM-based FPGAs. Typical applications include bus-interface bridging, address decoding and DMA control in industrial backplanes, glue-logic replacement for 7400-series TTL in legacy designs, peripheral controllers in printers and scanners, and LED display multiplexing. Designers frequently choose the MAX 3000A family when a low-cost, non-volatile, deterministic-logic solution is needed in a familiar 3.3 V ecosystem. When designing with the EPM3128ATC144-5, ensure each I/O bank has its VCCIO rail properly decoupled and matched to the driven logic level (3.3 V or 2.5 V), because mixing I/O standards in the same bank can damage the device. Provide a minimum of 0.1 uF ceramic bypass on each VCC and VCCIO pin, and consult the MAX 3000A Family Data Sheet for ISP programming voltage sequencing when using JTAG. This page synthesizes distributor pricing, drop-in same-family Altera alternatives, datasheet-derived design notes, and an AEO-optimized FAQ that are not consolidated on any single manufacturer or distributor page.

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EPM3128ATC144-5N - MAX 3000A 128-Macro 5ns CPLD | Altera
EPM3128ATC144-5N

EPM3128ATC144-5N - MAX 3000A 128-Macro 5ns CPLD | Altera

The Altera EPM3128ATC144-5N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family. It integrates 2.5K usable gates and 128 macro cells in a 144-pin TQFP package, with 4.5 ns pin-to-pin logic delays and counter frequencies up to 227.3 MHz. The device operates at a 3.3 V core supply with MultiVolt I/O supporting 5.0 V, 3.3 V, and 2.5 V logic levels, enabling direct interface to mixed-voltage buses without external level shifters. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple PAL/GAL spld devices and high-density FPGAs in the programmable logic hierarchy. CPLDs use a classic AND/OR PLA architecture with non-volatile EEPROM configuration memory, providing instant-on behavior at power-up, deterministic timing, and high pin-to-pin performance - features that make them well suited for glue logic, bus interfacing, and control-plane applications. The MAX 3000A family is positioned for cost-sensitive, high-volume designs where FPGAs would be overkill but discrete logic is too inflexible. Key specifications include 96 user I/O pins, 3.3 V core voltage, in-system programmability (ISP) via JTAG, 4.5 ns pin-to-pin delay, and commercial 0C to 70C operating temperature range. The device features MultiVolt I/O pins that can interface with 5.0 V, 3.3 V, and 2.5 V logic, plus 3.3-V ISP through the JTAG interface. Built-in JTAG boundary-scan (IEEE Std 1149.1) simplifies board-level test and programming. The MAX 3000A architecture combines a global interconnect fabric with multiple logic array blocks (LABs), each containing 16 macro cells. Each macro cell provides a programmable register with clock enable, clear, and preset logic, allowing flexible implementation of state machines, decoders, and arithmetic functions. The deterministic interconnect guarantees fixed, predictable propagation delays independent of design placement. Typical applications include address decoding for processor and memory buses, peripheral glue logic, bus arbitration, I/O expansion, and power-up sequencing controllers. The MAX 3000A family is also widely used in industrial control, telecommunications equipment, and consumer electronics where deterministic timing and instant-on non-volatile configuration are required. When designing with the EPM3128ATC144-5N, use Altera's Quartus II design software (or MAX+PLUS II for legacy designs) for synthesis, fitting, and programming file generation. The 144-pin TQFP package is pin-compatible with other MAX 3000A and MAX 7000 family devices in the same package, simplifying migration paths. Programming via JTAG is recommended for production; the 3.3-V ISP eliminates the need for a separate programmer. This page synthesizes verified distributor inventory, parametric same-brand and cross-brand drop-in alternatives, and practical design notes not aggregated on any single manufacturer or distributor page.

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EPM3128ATC144-7 - MAX 3000A CPLD, 128 Macrocells, 7.5ns | Intel
EPM3128ATC144-7

EPM3128ATC144-7 - MAX 3000A CPLD, 128 Macrocells, 7.5ns | Intel

The Intel (formerly Altera) EPM3128ATC144-7 is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, featuring 128 macrocells and 96 user I/Os in a 144-pin TQFP package. It operates on a single 3.3V supply and supports in-system programmability (ISP) through the IEEE 1149.1 JTAG interface. The -7 speed grade delivers pin-to-pin propagation delays as fast as 7.5 ns with internal counter frequencies up to 129.9 MHz, making it compatible with PCI Local Bus Specification Revision 2.2 timing requirements. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like logic blocks on a single chip with a programmable interconnect matrix. CPLDs sit in the programmable logic hierarchy between simple SPLDs (PALs/GALs) and high-density FPGAs, offering deterministic timing, instant-on configuration from on-chip EEPROM, and superior I/O density for glue-logic applications. The MAX 3000A family specifically targets low-cost, high-volume designs requiring 32 to 512 macrocells. Key features of the EPM3128ATC144-7 include 2,500 usable gates, 128 macrocells organized in 8 Logic Array Blocks (LABs), 96 user I/Os, multiVolt I/O supporting 1.8V/2.5V/3.3V interfaces, and built-in boundary-scan test support. The device also provides programmable power-saving modes per macrocell to reduce quiescent power, plus 3.3V in-system programmability that eliminates the need for separate PROM storage. The CMOS EEPROM process technology ensures zero-configuration-time instant-on behavior, ideal for boot-critical applications. The EPM3128A utilizes a classic MAX architecture with each LAB containing 16 macrocells, each comprising a programmable AND/OR array with configurable flip-flops. A global programmable interconnect array (PIA) routes signals between LABs and I/O pins with predictable, fixed delays - making timing analysis straightforward compared to FPGAs. The device supports JTAG-based boundary scan and ISP-compliant programming via Altera/Intel Quartus II software using a ByteBlaster or USB-Blaster download cable. Typical applications include PCI bus interface glue logic, bus decoding and address mapping, state-machine controllers, I/O expansion for microcontrollers, power-up sequencing logic, and peripheral interfacing in industrial control systems. The deterministic timing and instant-on behavior make it well suited for ASIC prototyping, legacy system upgrades, and designs where configuration memory must be non-volatile. When designing with the EPM3128ATC144-7, ensure the JTAG chain is properly terminated with 4.7k pull-ups on TDI/TMS to keep them high during reset. Decouple all VCCINT and VCCIO pins with 0.1 microfarad ceramic capacitors placed within 5mm of each pin pair. The Quartus II design software supports VHDL, Verilog, and schematic entry for this device family. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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EPM3128ATC144-7N - MAX 3000A CPLD, 128 Macrocells, 7.5ns | Altera
EPM3128ATC144-7N

EPM3128ATC144-7N - MAX 3000A CPLD, 128 Macrocells, 7.5ns | Altera

The Altera (now Intel) EPM3128ATC144-7N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, providing 128 macrocells, 96 user I/Os, and a 7.5 ns pin-to-pin propagation delay in a 144-pin TQFP (Plastic Thin Quad Flat Pack) package with a 3.3 V core supply. The device delivers up to 10,000 usable gates, supports counter frequencies up to 227.3 MHz, and includes MultiVolt I/O interfaces compatible with 5.0 V, 3.3 V, and 2.5 V logic levels. Speed grades -4 through -10 are compatible with the PCI Local Bus Specification, Revision 2.2 (PCI SIG). A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like logic blocks on a single chip with a programmable interconnect matrix. CPLDs occupy the middle ground between simple SPLDs and high-density FPGAs: they offer instant-on operation (no boot loader required), deterministic timing, high drive strength, and decades of configuration retention (MAX 3000A uses EEPROM cells that retain the bitstream without external memory). They are widely used as glue logic, bus bridges, state-machine controllers, and I/O expanders in industrial, communications, and consumer designs. The MAX 3000A architecture in the EPM3128ATC144-7N features Logic Array Blocks (LABs) with 16 macrocells each, a programmable interconnect array (PIA), and I/O control blocks supporting per-pin 3.3 V PCI-compliant drive. In-system programmability (ISP) is supported via the 3.3 V JTAG interface (IEEE Std. 1149.1), enabling field updates and production-line programming. The device offers programmable security bits to protect designs against unauthorized readback. Typical applications include PCI bus interface glue logic, address decoding and bus arbitration in microprocessor systems, power-up sequencing controllers, I/O expansion for DSPs and microcontrollers, industrial control state machines, and LED display driver controllers. The commercial 0 °C to 70 °C operating range suits it for indoor and consumer electronics. When designing with the EPM3128ATC144-7N, pay attention to the I/O bank supply voltage: the VCCINT pins require 3.3 V while the VCCIO pins can be driven at 2.5 V, 3.3 V, or 5.0 V for mixed-voltage interfacing. The TQFP-144 package requires a 1.0 mm pitch footprint with proper thermal relief and ground pouring to handle simultaneous-switching output (SSO) noise. This page synthesizes distributor pricing, drop-in MAX 3000A alternatives, and practical design notes (PCI compliance, ISP via JTAG, I/O bank mixing) not found in the manufacturer datasheet alone.

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EPM3128ATI100-10 - 128-Macro MAX 3000A CPLD, 10ns TQFP-100 | Altera
EPM3128ATI100-10

EPM3128ATI100-10 - 128-Macro MAX 3000A CPLD, 10ns TQFP-100 | Altera

The Altera (Intel) EPM3128ATI100-10 is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, packaged in a 100-pin TQFP with industrial temperature rating and a 10 ns pin-to-pin propagation delay. It provides 128 macro cells, 80 user I/Os, and approximately 2,500 usable gates, all running from a single 3.3 V supply with 3.3-V in-system programmability (ISP) through the IEEE 1149.1 JTAG interface. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits in the hierarchy between simple SPLDs/PALs/GALs and larger FPGAs. Architecturally, a CPLD consists of multiple PAL-like macro-cell Logic Array Blocks (LABs) interconnected by a programmable switch matrix (PIA). CPLDs are prized for deterministic timing, instant-on from EEPROM, and high drive strength on every I/O - making them ideal for glue logic, bus interfacing, and power-up control where FPGAs are overkill. The MAX 3000A family specifically targets low-cost, 3.3-V applications and is pin-compatible across speed grades and density variants, allowing seamless migration within the family. Key features of the EPM3128ATI100-10 include 4.5 ns to 10 ns pin-to-pin logic delays (speed grade -10), counter frequencies up to 227.3 MHz, MultiVolt I/O supporting 5.0 V, 3.3 V, and 2.5 V logic levels, open-drain output option per pin, and JTAG-compliant boundary-scan testing. The 80 user I/Os are organized as 5 V-tolerant inputs with PCI-compatible drive, programmable slew rate, and configurable pull-up resistors. The MAX 3000A architecture employs a CMOS EEPROM process that yields zero-configuration instant-on behavior, unlike SRAM-based FPGAs that require a boot PROM. The non-volatile configuration eliminates external memory components and ensures the device enters its programmed state within microseconds of VCC ramp. MultiVolt I/O permits the 3.3-V core to interface directly with 5.0-V TTL, 3.3-V LVTTL, and 2.5-V LVCMOS logic families without level shifters, simplifying board design. Typical applications include bus-interface bridging (e.g., address decoding between a microcontroller and external peripherals), power-up sequencing controllers, LED display driving, peripheral glue logic in industrial controllers, and PCI target interface logic. The industrial temperature range (-40 °C to +85 °C) suits factory automation and outdoor equipment. When designing with the EPM3128ATI100-10, use Altera's Quartus II or MAX+PLUS II development environment for schematic, VHDL, or Verilog entry. Plan I/O assignments carefully because the TQFP-100 pinout is shared across the MAX 3000A family, enabling migration to lower-cost or faster speed grades without PCB rework. This page consolidates distributor pricing, in-family drop-in alternatives, JTAG programming guidance, and design notes that extend beyond the standalone MAX 3000A datasheet.

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EPM3128ATI100-5N - MAX 3000A CPLD, 128 Macrocells, TQFP-100 | Intel / Altera
EPM3128ATI100-5N

EPM3128ATI100-5N - MAX 3000A CPLD, 128 Macrocells, TQFP-100 | Intel / Altera

The Intel / Altera EPM3128ATI100-5N is a member of the MAX 3000A family of Complex Programmable Logic Devices (CPLDs), delivering 128 macrocells, 80 user I/O pins, and a 5.0 ns pin-to-pin delay in a 100-pin TQFP (industrial temperature) package. It operates from a 3.3 V core supply and is in-system programmable (ISP) through the IEEE Std. 1532-compliant JTAG interface, enabling concurrent programming with other vendors' PLDs. The industrial temperature grade (-40C to +85C) suits factory-floor and outdoor equipment where consumer-grade plastic parts are unsuitable. A Complex Programmable Logic Device (CPLD) is a non-volatile, instantly-on digital IC that implements glue logic, bus arbitration, state machines, and interface bridging between microcontrollers, FPGAs, and ASICs. Within the programmable logic hierarchy, the MAX 3000A family sits below FPGAs (more logic, more delay, more power) but above discrete 74-series logic (more integration, lower BOM, easier re-spin). It uses a classic EE (EEPROM-based) architecture that retains configuration without external boot memory, giving it deterministic power-on behavior crucial for safety and control loops. Key features include 128 macrocells organized in 8 Logic Array Blocks (LABs) of 16 macrocells each, a 100% interconnect matrix (PIA) with predictable timing, 5.0 ns combinatorial tPD, 80 mA DC drive per I/O with PCI-compatible drive strength, and JTAG boundary-scan support via IEEE 1149.1. Each macrocell contains a programmable AND/OR array plus a flip-flop that can be configured as D, T, JK, or SR, with per-macrocell product-term allocation up to 32 terms. Typical applications include industrial control glue logic, address decoding in microcontroller-based systems, bus arbitration between CPU and peripheral buses, peripheral glue for legacy 5 V tolerant interfaces, and PCI/USB/ISA bridge functions. The wide I/O count (80 pins) makes it especially useful for replacing multiple discrete 74HC/74LVC packages in dense board designs. When designing with the MAX 3000A, ensure the 3.3 V supply is well decoupled with 0.1 uF plus bulk capacitors placed near each VCC pin, and reserve a dedicated JTAG header (TCK, TMS, TDI, TDO, plus optional TRST) for in-system programming. The non-volatile EEPROM configuration eliminates boot time but requires a Quartus programmer for updates. This page synthesizes distributor pricing, drop-in alternatives from the same MAX 3000A family, and practical design notes not found in the manufacturer datasheet alone.

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EPM3128ATI10010N - MAX 3000A CPLD 128MC 100TQFP | Altera
EPM3128ATI10010N

EPM3128ATI10010N - MAX 3000A CPLD 128MC 100TQFP | Altera

The Altera EPM3128ATI10010N is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs), featuring 128 macro cells, 2,500 usable gates, and 80 user I/Os in a 100-pin TQFP package. The device operates at a 3.3 V core supply with a maximum internal frequency of 98 MHz and a pin-to-pin propagation delay of 10 ns (-10 speed grade), supporting commercial temperature grades (0C to +70C). Built on a non-volatile EEPROM process, the MAX 3000A delivers instant-on operation without external configuration memory. A Complex Programmable Logic Device (CPLD) is a non-volatile digital IC that integrates multiple PAL/GAL-style logic blocks on a single die, connected through a programmable interconnect matrix. Within the broader taxonomy, a CPLD sits between small SPLDs (single PAL/GAL equivalents) and FPGAs, offering predictable timing, deterministic propagation delays, and instant-on behavior. The MAX 3000A family uses Altera's classic MAX architecture with EEPROM memory cells, providing 100% tested programming retention and 3.3 V in-system programmability (ISP) via IEEE 1149.1 JTAG. Key features include 128 macro cells distributed across 8 Logic Array Blocks (LABs) of 16 macro cells each, 80 user I/O pins, JTAG boundary-scan test support, and PCI-compliant I/O buffers for the -5, -6, -7, and -10 speed grades. The device supports multi-volt core operation from 3.0 V to 3.6 V and I/O bank voltages of 1.8 V, 2.5 V, or 3.3 V, allowing flexible mixed-voltage interfacing. The MAX 3000A employs a CMOS EEPROM process with four-product-term macro cell logic, programmable interconnect, and per-pin output enable control. The architecture guarantees fixed propagation delays independent of routing paths, which simplifies static timing closure for glue-logic and bus-interface functions. Designers benefit from deterministic timing ideal for address decoding, state-machine control, and bus arbitration. Typical applications include bus-interface bridging, peripheral glue logic in microcontroller systems, address decoding, I/O expansion, and legacy system redesigns requiring drop-in CPLD replacement. It is also widely used in industrial control boards and telecom infrastructure where predictable timing and instant-on non-volatile configuration are essential. When designing with the EPM3128ATI10010N, ensure that I/O bank supply voltages match the logic levels of connected peripherals. JTAG ISP programming requires the TCK, TMS, TDI, and TDO pins to be reserved on the PCB, and unused I/Os should be left floating or driven to a defined state through the Quartus MAX+PLUS II software. This page synthesizes distributor pricing, pin-compatible drop-in alternatives from the same MAX 3000A family, and practical design notes not consolidated in the original datasheet.

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EPM3128ATI144-10 - MAX 3000A CPLD 128 Macro 98 I/O TQFP-144 | Intel/Altera
EPM3128ATI144-10

EPM3128ATI144-10 - MAX 3000A CPLD 128 Macro 98 I/O TQFP-144 | Intel/Altera

The Intel/Altera EPM3128ATI144-10 is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, providing 2,500 usable gates, 128 macro cells, and 98 user I/Os in a 144-pin TQFP industrial-temperature-grade package with 10 ns pin-to-pin delay and a 3.3-V core supply. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-style logic blocks with a central interconnect matrix, providing deterministic timing and instant-on behavior. CPLDs occupy the middle ground between small logic ICs (gates, muxes, flip-flops) and larger FPGAs, making them ideal for glue-logic, bus-interface bridging, power-up sequencing, and state-machine replacement. The MAX 3000A family sits within the broader hierarchy of programmable logic devices (PLDs) -> CPLDs -> non-volatile logic devices -> digital semiconductors. Key features of the EPM3128ATI144-10 include 128 macro cells distributed across 8 Logic Array Blocks (LABs), 96 user I/Os (note: 96 is the canonical MAX 3000A count for the 144-pin TQFP; the 98 figure cited on some aggregator pages reflects legacy Altera documentation), in-system programmability (ISP) through the IEEE 1149.1 JTAG interface, and PCI-SIG-compliant I/O drivers supporting the PCI Local Bus Specification, Revision 2.2 in the -4, -5, -6, -7, and -10 speed grades. The device operates from a 3.3-V supply with 5-V-tolerant I/O available on certain pins. Architecturally, the device uses a uniform interconnect matrix (the Programmable Interconnect Array, or PIA) that routes signals between LABs with predictable, fixed delays, eliminating the timing-closure variability of FPGA fabrics. The EEPROM configuration memory provides true non-volatile storage, so the part powers up in a known functional state without external boot memory. Counter frequencies reach 192.3 MHz in the -7 speed grade and 98 MHz typical for the -10 grade. Typical applications include industrial control glue logic, parallel bus interface bridging (e.g., address decoding between a microcontroller and an SRAM bank), power-sequencing controllers for multi-rail systems, peripheral expansion logic, and PCI-bus glue functions. The wide operating temperature range (-40C to +85C industrial) makes it suitable for factory automation, automotive body electronics, and outdoor telecommunications equipment. When designing with this part, allocate the JTAG pins (TCK, TMS, TDI, TDO) carefully because they are dedicated for boundary-scan and ISP. Decouple each VCCINT/VCCIO pair with a 0.1 uF ceramic capacitor placed within 5 mm of the package pin, and use a ground plane on layer 2 for return-current continuity. This page synthesizes verified distributor pricing, drop-in alternative cross-references, and practical PCB-layout design notes for the EPM3128ATI144-10 that are not assembled in the manufacturer datasheet alone.

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EPM3128ATI144-10AA - 128-Macrocell MAX 3000A CPLD, 10ns, 144-TQFP | Intel
EPM3128ATI144-10AA

EPM3128ATI144-10AA - 128-Macrocell MAX 3000A CPLD, 10ns, 144-TQFP | Intel

The Intel (formerly Altera) EPM3128ATI144-10AA is a 128-macrocell, 2,500-gate CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, supplied in a 144-pin TQFP package with a 10 ns pin-to-pin propagation delay (tPD). The part supports in-system programmability (ISP) via a 3.3 V JTAG interface, operates from 3.0 V to 3.6 V, and provides 96 user I/O pins suitable for glue-logic, bus-interface, and state-machine consolidation in industrial and telecom designs. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that combines multiple PAL-like macrocell arrays on a single die, providing deterministic timing, predictable pin-to-pin delays, and instant-on behavior that FPGAs cannot match. Within the programmable-logic hierarchy, a CPLD sits between simple SPLDs (PAL/GAL) and high-density FPGAs: it offers higher logic density than SPLDs and faster, more deterministic timing than FPGAs, making it ideal for I/O expansion, address decoding, and bus-interface bridging. The MAX 3000A family is Intel's classic 3.3 V CPLD line, widely used as a 'glue logic' replacement for discrete TTL/CMOS parts. Key features of the EPM3128ATI144-10AA include 128 macrocells organized in 8 Logic Array Blocks (LABs), 2,500 usable gates, 96 user I/O pins, 10 ns maximum pin-to-pin delay, and a 98 MHz internal fMAX. The device supports IEEE 1149.1 JTAG boundary-scan testing and ISP through the JTAG pins, eliminating the need for a separate programmer. MultiVolt I/O allows interfacing with 1.5 V, 1.8 V, 2.5 V, and 3.3 V devices without external level shifters. Architecturally, the MAX 3000A uses a classic EEPROM-based AND-plane / OR-plane structure with per-macrocell flip-flops, programmable interconnect, and a global clear/clock network. Each macrocell contains a programmable AND/OR array feeding a flip-flop with selectable polarity, clear, clock-enable, and preset. This architecture delivers the deterministic tPD that makes MAX 3000A devices preferred for synchronous state machines, address decoding, and asynchronous interface logic where designers need to know the worst-case delay before place-and-route. Typical applications include bus-interface bridging (PCI to local bus, ISA, VME), address decoding and chip-select generation, glue-logic consolidation in 3.3 V systems, state-machine controllers, I/O expansion for microcontrollers, and asynchronous reset distribution. The wide operating temperature range (-40 °C to +85 °C industrial grade, indicated by the 'I' suffix) makes it suitable for industrial-control and telecom equipment. Design considerations: ensure the 3.3 V supply is well-decoupled with 0.1 µF and 10 µF capacitors close to the VCCINT and VCCIO pins; reserve JTAG pins TCK, TMS, TDI, TDO for ISP and boundary-scan if used; and remember that the 'AA' suffix denotes the industrial temperature grade. The MAX 3000A family is mature; verify long-term availability before designing into new products, as Intel/Altera has migrated many customers to MAX II/V CPLDs. This page synthesizes distributor pricing from DigiKey/Heisener/Jotrin, verified same-family drop-in alternatives, and practical design guidance for industrial glue-logic and address-decoding applications - content not aggregated on any single distributor page.

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EPM3128ATI144-10N - 128-Macrocell MAX 3000A CPLD, 10ns | Intel / Altera
EPM3128ATI144-10N

EPM3128ATI144-10N - 128-Macrocell MAX 3000A CPLD, 10ns | Intel / Altera

The Intel / Altera EPM3128ATI144-10N is a 128-macrocell, 96-I/O member of the MAX 3000A family of cost-optimized, EEPROM-based 3.3 V Complex Programmable Logic Devices (CPLDs). It is supplied in a 144-pin TQFP (Industrial temperature grade) and offers a 10 ns pin-to-pin propagation delay with a maximum internal clock frequency of approximately 98 MHz. The device integrates non-volatile EEPROM configuration cells, providing instant-on operation at power-up without an external boot PROM. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that sits in the hierarchy between discrete logic gates (PAL/GAL) and higher-density FPGAs. Architecturally, the MAX 3000A family is built on the classic MAX architecture, which arranges Logic Array Blocks (LABs) of 16 macrocells each, interconnected by a continuous, fast Programmable Interconnect Array (PIA). This PIA provides predictable, fixed propagation delays that are independent of routing, making timing analysis straightforward - one of the key reasons CPLDs are favored for glue logic, bus decoding, and state-machine control. Key features of the EPM3128ATI144-10N include 128 macrocells (2.5K typical gates), 96 user I/Os, in-system programmability (ISP) compliant with IEEE Std. 1532, JTAG boundary-scan support, and multi-volt VCCIO allowing output banks to operate at either 3.3 V or 2.5 V for mixed-voltage interfacing. The device includes a built-in Joint Test Action Group (JTAG) interface for both ISP and IEEE 1149.1 boundary-scan test. The 10 ns speed grade places this part in the mainstream, general-purpose CPLD tier. Typical applications for the EPM3128ATI144-10N span glue-logic integration, address decoding and bus interfacing in microcontroller systems, state-machine and sequencer design, I/O expansion, power-supply sequencing and supervisory control, and legacy system upgrades where a non-volatile, instant-on logic device replaces discrete 74-series logic. When designing with this CPLD, note that the 144-pin TQFP package requires 0.5 mm pitch PCB layout. Designers should provide a solid ground plane, multiple decoupling capacitors (0.1 uF per VCC pin group), and use the Quartus II (or Quartus Prime) toolchain for design entry, fitting, and ISP programming. Industrial temperature grade is supported. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single source for sourcing and substitution decisions.

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EPM3128ATI144-5N - 128-Macrocell 2.5K CPLD MAX 3000A | Altera
EPM3128ATI144-5N

EPM3128ATI144-5N - 128-Macrocell 2.5K CPLD MAX 3000A | Altera

The Altera (now Intel Programmable Solutions Group) EPM3128ATI144-5N is a 128-macrocell, 2,500-gate Complex Programmable Logic Device (CPLD) from the MAX 3000A family, packaged in a 144-pin TQFP and qualified for industrial temperature operation. It delivers 192.3 MHz maximum operating frequency with a 5.0 ns pin-to-pin propagation delay, supports 96 user I/O lines, and operates from a 3.3 V core supply with 3.0 V to 3.6 V tolerance. The device integrates in-system programmability through JTAG BST and is built on a 0.30 um CMOS EEPROM process. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, instantly-on programmable logic IC that combines multiple PAL-style macrocell arrays on a single die with a central interconnect matrix. CPLDs sit in the broader hierarchy between simple SPLDs (like the classic 22V10) and larger FPGAs. They offer deterministic, fixed timing (predictable tPD regardless of routing), low static power, and instant boot from on-chip EEPROM - making them the workhorse glue-logic and bus-interface solution in industrial, telecom, and consumer designs. The MAX 3000A family is Altera's classic 3.3 V EEPROM-based CPLD line. Key differentiating specifications of the EPM3128ATI144-5N include 128 macrocells backed by 2,500 usable gates, 192.3 MHz fMAX with 5.0 ns tPD, in-system programmability via JTAG boundary-scan test, and full IEEE 1149.1 boundary-scan support. Compared to larger FPGAs, the EPM3128ATI144-5N draws standby currents measured in microamps and wakes up configured in under 1 ms. Technically, the device exposes 96 user I/Os (the remaining package pins are power, ground, JTAG, and configuration), supports 3.3 V LVCMOS/LVTTL I/O with 5.0 V tolerant inputs, and includes four dedicated input clocks with global distribution. The non-volatile EEPROM configuration cell array eliminates external boot PROMs. Typical applications include industrial control and factory-automation glue logic, telecommunications backplane bus bridging (PCI, ISA, VME), consumer electronics control logic, white-goods and appliance controllers, and legacy system replacements where 5 V-tolerant input tolerance is required. Designers select this part when deterministic timing, instant-on behavior, and small board footprint outweigh the need for high logic density. When designing with the EPM3128ATI144-5N, observe the 3.0 V to 3.6 V supply rail tolerance and decouple each VCCIO/VCCINT pin with a 0.1 uF ceramic capacitor placed within 5 mm of the pin. The TQFP-144 thermal pad (when present on the package variant) should be soldered to a continuous ground plane for improved theta_JA. This page synthesizes distributor pricing, drop-in MAX 3000A / MAX 7000A alternatives, and practical design notes not found in the manufacturer datasheet - including thermal, JTAG, and 5 V-mixing considerations relevant to engineers migrating 5 V designs to 3.3 V.

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EPM3128ATI144-7N - 128 Macrocell CPLD, 129.9MHz, 3.3V | Altera MAX 3000A
EPM3128ATI144-7N

EPM3128ATI144-7N - 128 Macrocell CPLD, 129.9MHz, 3.3V | Altera MAX 3000A

The Altera EPM3128ATI144-7N is a 128-macrocell, 2.5K-gate Complex Programmable Logic Device (CPLD) from the MAX 3000A family, operating at a core supply of 3.3V with a maximum internal clock frequency of 129.9 MHz, housed in a 144-pin TQFP package. The MAX 3000A family is built on a CMOS EEPROM process that delivers non-volatile in-system programmability via JTAG (IEEE 1149.1 boundary-scan), so configuration is retained across power cycles without an external boot PROM. The device supports up to 96 user I/O pins, four logic array blocks (LABs), and 128 macrocells organized across the LABs with a programmable interconnect array (PIA) routing signals globally. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that sits between simple PLDs and FPGAs in the programmable logic hierarchy. A CPLD contains multiple macrocells - each typically implementing a sum-of-products or look-up-table based logic function with a flip-flop - wired together through a central interconnect. Compared to an FPGA, a CPLD has fewer logic resources but offers deterministic, near-zero propagation delay (often measured in nanoseconds), lower cost per I/O, instant-on behavior, and high tolerance for harsh industrial environments. In the broader taxonomy, the EPM3128 belongs to: programmable logic device -> CPLD -> MAX 3000A family -> Altera/Intel programmable solutions. Key features include 7.5 ns pin-to-pin propagation delay (the "-7" speed grade), in-system programmability (ISP) via JTAG, 3.3V core VCCINT with 3.3V or mixed 2.5V/1.8V LVTTL/LVCMOS I/O capability through banked VCCIO rails, and a MultiVolt I/O interface that allows interfacing to 5.0V, 3.3V, 2.5V and 1.8V devices. Built-in JTAG boundary-scan test (BST) circuitry conforms to IEEE Std 1149.1, supporting both manufacturing test and in-field reprogramming. Each macrocell provides configurable D, T, JK, or SR flip-flop operation, programmable clear/preset, and three product-term configurations. Typical applications include bus-interface glue logic for 32-bit microprocessors, address decoding and chip-select generation, state-machine controllers for industrial automation, peripheral expansion in embedded designs, and legacy-system modernization where high-speed deterministic logic must replace discrete 74-series TTL. The 144-pin TQFP package provides 96 user I/O and a 0.5 mm pitch suitable for both hand-prototyping and high-volume SMT production. Designers should observe Altera application-note recommendations for JTAG chain management, multi-voltage I/O bank setup, and decoupling (at least one 0.1 uF and one 10 uF bulk cap per supply pin pair) when migrating designs from MAX 7000 to MAX 3000A.

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EPM3256AFC256-10 - 256-Macro CPLD MAX 3000A | Intel / Altera | FBGA-256
EPM3256AFC256-10

EPM3256AFC256-10 - 256-Macro CPLD MAX 3000A | Intel / Altera | FBGA-256

The Intel (formerly Altera) EPM3256AFC256-10 is a 256-macrocell CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, housed in a 256-ball Fine-Line BGA (FBGA-256) package. It delivers up to 161 user I/Os, a 10 ns pin-to-pin propagation delay, and operates from a 3.3 V supply with 5.0 V tolerant I/O capability for mixed-voltage system integration. 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 between discrete logic gates (74HC series) and FPGAs in the programmable logic hierarchy: they offer deterministic, fast (single-clock-cycle) propagation delays, in-system programmability via JTAG, and instant-on configuration from on-chip EEPROM, making them ideal for glue-logic, bus interfacing, and state-machine replacement. Key features of the EPM3256AFC256-10 include 5,000 usable gates, 16 logic array blocks (LABs) of 16 macrocells each, a global ClockTree with three global clock pins, and 3.3-V in-system programmability (ISP) through the IEEE Std. 1149.1 JTAG interface. The -10 speed grade provides a 10 ns tPD and an internal fCNT of up to 95.2 MHz, suitable for PCI Local Bus Specification Revision 2.2-compliant designs in the -4, -5, -6, -7, and -10 grades. The device is built on a 0.30 µm CMOS EEPROM process and supports multi-voltage I/O operation, allowing 5.0 V devices to drive 3.3 V devices with proper pull-up configuration. Its non-volatile EEPROM cells mean the device configures in microseconds without an external boot PROM, supporting instant-on behavior critical for power-supply sequencing and safety-critical applications. Typical applications include PCI bus interface glue logic, industrial control boards, address decoding and bus arbitration in embedded systems, peripheral expansion bridges, and LED display multiplexing. Its 161 I/Os make it a flexible replacement for multiple discrete 74-series logic packages, reducing board area and BOM count. When designing with the EPM3256AFC256-10, pay close attention to FBGA-256 PCB layout: a 1.0 mm pitch BGA requires laser-via or microvia PCB technology and four to six PCB layers for signal escape. Decoupling requires 0.1 µF and 10 µF capacitors placed within 5 mm of each supply pin, with a continuous ground plane beneath the package for thermal dissipation. This page synthesizes distributor pricing, FBGA-256 drop-in alternatives, and practical PCB layout notes not consolidated in the legacy Altera MAX 3000A datasheet.

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EPM3256AFC256-10N - 5K Gate 256-Macro MAX 3000A CPLD | Altera
EPM3256AFC256-10N

EPM3256AFC256-10N - 5K Gate 256-Macro MAX 3000A CPLD | Altera

The Altera (now Intel) EPM3256AFC256-10N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, delivering 5,000 usable gates and 256 macrocells in a 256-pin FineLine BGA package. It offers a 10 ns pin-to-pin propagation delay and counter frequencies up to 227.3 MHz, while integrating a MultiVolt I/O interface that lets the 3.3 V core drive 5.0 V, 3.3 V, and 2.5 V logic levels without external level shifters. The device provides 161 usable user I/O pins, suiting bus-intensive glue-logic, interface bridging, and decoder/encoder consolidation. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-style macrocell arrays with a central interconnect matrix. CPLDs are positioned below FPGAs in the programmable logic taxonomy (CPLD -> PLD -> programmable logic -> semiconductor) and are typically chosen for deterministic timing, instant-on from non-volatile configuration, and high I/O count at low cost. The MAX 3000A family is built on an EEPROM process, meaning the configuration is retained even after power is removed - a key advantage over SRAM-based FPGAs that need an external boot PROM. Key differentiating features include 3.3 V in-system programmability (ISP) via IEEE 1532 / JTAG, four Joint Test Action Group (JTAG) pins for boundary-scan testing, and built-in PCI-SIG PCI Local Bus Specification Revision 2.2 compliance at the -10 speed grade. The device also includes programmable security bits to protect user designs and supports open-drain output options for bus-architecture signaling. Compared to smaller MAX 3000A devices such as the EPM3128A, the EPM3256A doubles the macrocell count to 256 and pushes the user I/O count to 161 - enough for parallel bus interfaces, glue logic consolidation, and power-up sequencer replacement. Typical applications include peripheral bus decoding (PCI/ISA/address-latch enable), power-on reset and sequencer logic, high-speed address decoding for microprocessors and DSPs, glue-logic integration in telecom/networking line cards, industrial control boards, and legacy replacement of discrete 74-series TTL on industrial motherboards. Its non-volatile, deterministic-timing architecture is also favored in safety-relevant industrial designs. Designers should plan JTAG chain topology before PCB layout, as the four JTAG pins (TDI, TDO, TMS, TCK) must be brought to a header for ISP. Decoupling follows Altera's recommendation of 0.1 uF and 0.01 uF capacitors placed close to each VCC/GND pair, with separate analog/digital ground returns where mixed-signal devices share the board. This page consolidates distributor pricing, drop-in alternative cross-references, and PCB-level design guidance beyond what is found in the bare Altera datasheet - giving engineers a single place to evaluate sourcing, lifecycle risk, and design-in trade-offs for legacy MAX 3000A designs.

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EPM3256AFC256-7 - MAX 3000A CPLD, 256 Macro Cells, BGA-256 | Altera
EPM3256AFC256-7

EPM3256AFC256-7 - MAX 3000A CPLD, 256 Macro Cells, BGA-256 | Altera

The Altera EPM3256AFC256-7 is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs), housed in a 256-ball FineLine BGA (FBGA-256) package. It delivers 256 macro cells with 161 user I/Os, supports pin-to-pin logic delays as low as 4.5 ns, and sustains counter frequencies up to 227.3 MHz. The device core operates at 3.3 V, while the MultiVolt I/O interface is compatible with 5.0-V, 3.3-V, and 2.5-V logic levels, enabling flexible mixed-voltage system designs. A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic device that combines multiple PAL/GAL-like logic blocks on a single chip with a centralized interconnect. CPLDs sit between simple glue-logic ICs (small-scale SPLDs) and high-density FPGAs in the programmable logic hierarchy, offering deterministic pin-to-pin timing, instant-on behavior from EEPROM configuration, and low power consumption. The MAX 3000A architecture (CPLD -> programmable logic -> digital IC -> semiconductor) is particularly suited for bus decoding, state-machine control, and address-mapping functions where predictable timing is critical. Key features of the EPM3256AFC256-7 include 10,000 usable gates, IEEE Std. 1532-compliant 3.3-V in-system programmability (ISP) that supports concurrent programming across multiple PLD vendors, JTAG boundary-scan testing, and open-drain output option for flexible bus interfacing. The 161 available user I/Os provide extensive connectivity for high-pin-count designs, and the 256-ball FBGA package supports fine-pitch surface-mount PCB layouts typical of high-density logic integration. The device is built on a 0.30 µm CMOS EEPROM process, providing non-volatile storage of the configuration bitstream. With 256 macro cells partitioned across 16 logic array blocks (LABs) and a programmable interconnect array (PIA), the EPM3256AFC256-7 can implement combinational logic, registered logic, and small state machines. Typical propagation delay is specified at 4.5 ns, making it suitable for high-speed control applications. Typical applications include bus-interface bridging in telecommunications equipment, address decoding in embedded systems, and glue-logic replacement in industrial control. It is widely used in legacy systems, manufacturing automation controllers, and PCI/ISA bus designs where deterministic timing and 5-V tolerance are required. The commercial 0 °C to 70 °C operating range fits office and laboratory environments. When designing with the EPM3256AFC256-7, ensure the FBGA-256 PCB footprint matches the JEDEC MS-034 ball-map standard. Decoupling capacitors (0.1 µF) should be placed close to each VCC pin, and JTAG chain routing should follow IEEE 1149.1 guidelines for reliable ISP programming. Designers migrating to newer designs should evaluate MAX II or MAX V CPLDs as modern equivalents with lower power consumption.

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EPM3256AFI256-10 - 256-Macrocell CPLD, 10ns, FBGA-256 | Intel
EPM3256AFI256-10

EPM3256AFI256-10 - 256-Macrocell CPLD, 10ns, FBGA-256 | Intel

The Intel EPM3256AFI256-10 is a 256-macrocell high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, housed in a 256-ball FineLine BGA package with industrial-grade temperature rating. It delivers 10ns pin-to-pin propagation delay, 161 user I/Os, and 3.3V in-system programmability (ISP) through the IEEE Std. 1149.1 JTAG interface. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple SPLDs/GALs and FPGAs in the programmable logic hierarchy (SPLD -> CPLD -> FPGA -> programmable logic -> semiconductor). It uses a combination of AND/OR macrocell fabric and a predictable interconnect network to implement glue logic, interface bridging, and state-machine control functions with deterministic, fixed timing - making it ideal for designs that need deterministic sub-100ns response without FPGA configuration overhead. Key features of the EPM3256AFI256-10 include MultiVolt I/O supporting 5.0V, 3.3V, and 2.5V logic interfaces, 5ns PCI-compliant timing in faster speed grades, 16 macocells per Logic Array Block (LAB) with 256 total macrocells, and a JTAG-compliant boundary-scan test interface. The MAX 3000A architecture shares the same JTAG, ISP, and 4-pin configuration protocols used across the broader MAX family, simplifying design reuse. The FineLine BGA-256 package provides high I/O density (161 user I/Os) for space-constrained systems, while the EEPROM process technology guarantees 100 program/erase cycles and 20-year data retention without external boot memory. Typical applications include PCI bus interface glue logic, memory and processor address decoding, bus-width adaptation (e.g., 8-bit to 32-bit bridging), high-speed state-machine control, and power-sequencing logic in multi-rail systems. The deterministic timing makes it well-suited for industrial control, telecom line-card interfaces, and legacy peripheral replacement. When designing with the EPM3256AFI256-10, ensure the I/O bank supply rails match the logic-level targets (VCCIO for output drive, VCCINT for core) and respect the device's 3.3V core requirement. Use Quartus II or MAX+PLUS II for design entry; legacy designs may continue using MAX+PLUS II for source compatibility. This page synthesizes distributor stock, drop-in MAX 3000A family alternatives, and practical design notes not consolidated on the manufacturer product page or single distributor listing.

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EPM3256AQC208-10 - MAX 3000A CPLD 256 Macrocells 10ns 208-PQFP | Intel / Altera
EPM3256AQC208-10

EPM3256AQC208-10 - MAX 3000A CPLD 256 Macrocells 10ns 208-PQFP | Intel / Altera

The Intel / Altera EPM3256AQC208-10 is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs) housed in a 208-pin Plastic Quad Flat Pack (PQFP) package. Built on Altera's classic MAX architecture, this device delivers 256 macrocells, 161 user I/Os, and 5,000 usable gates with pin-to-pin propagation delays of 10 ns and internal counter frequencies up to 227.3 MHz. It operates from a 3.3 V core supply while remaining 5.0 V tolerant on its I/O pins, a critical feature for legacy and mixed-voltage designs. A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic IC that combines multiple PAL/GAL-style AND/OR arrays with a central interconnect fabric, providing deterministic timing, instant-on behavior, and in-system programmability (ISP) via IEEE 1149.1 JTAG. Within the broader semiconductor taxonomy, a CPLD sits below FPGAs in density but above simple SPLDs/GALs in logic capacity. MAX 3000A devices specifically use EEPROM configuration cells, so they retain their logic image without external boot memory, simplifying board design versus SRAM-based FPGAs. Key features of the EPM3256AQC208-10 include MultiVolt I/O supporting 2.5 V, 3.3 V, and 5.0 V interfaces on the same die, JTAG-compliant IEEE 1149.1 boundary-scan test (BST) and ISP, four dedicated inputs for global clock/clear/preset/OE networks, and PCI-SIG compliance for -4, -5, -6, -7, and -10 speed grades per the PCI Local Bus Specification Revision 2.2. The device offers programmable macrocell flip-flops configurable as D, T, JK, or SR operation with individual product-term clock selection. The MAX architecture employs a Lab/PLA-style logic array with a programmable interconnect matrix (PIA) that routes signals between Logic Array Blocks (LABs), guaranteeing predictable and repeatable pin-to-pin timing. Each macrocell contains a programmable AND/OR array, a flip-flop, and an I/O control block. The 10 ns pin-to-pin delay in this speed grade makes it suitable for bus interface logic, address decoding, glue logic replacement, and state-machine controllers where deterministic timing is required. Typical applications include legacy industrial control boards, telecom backplane glue logic, PCI bus interface and bridge logic, address decoding for microprocessors and DSPs, and replacement of multiple discrete TTL/CMOS logic gates. Designers working on legacy systems or repairing end-of-life Altera platforms frequently choose this part for its proven architecture and compatibility with the Quartus II 13.0 (or earlier) toolchain. When designing with this device, ensure your JTAG chain order and ISP programming voltage comply with the MAX 3000A handbook. Use the dedicated global clock pins for skew-critical paths and leverage the 5.0 V tolerant I/O when bridging to legacy 5 V buses. For new designs, consider migrating to MAX II (EPM240) or MAX V (5M80ZE64) devices for lower power and smaller packages. This page synthesizes distributor pricing, drop-in alternatives from the same MAX 3000A family, and practical design notes not found in the original datasheet, giving engineers a single decision-ready reference.

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EPM3256AQC208-10N - 256-Macro MAX 3000A 3.3V CPLD | Altera
EPM3256AQC208-10N

EPM3256AQC208-10N - 256-Macro MAX 3000A 3.3V CPLD | Altera

The Altera EPM3256AQC208-10N is a high-density, EEPROM-based Complex Programmable Logic Device (CPLD) from the legacy MAX 3000A family, housed in a 208-pin PQFP package and rated for the commercial 0C to 70C operating range. The device delivers 256 macrocells, up to 10,000 usable gates, 161 user I/Os, and a 10 ns pin-to-pin propagation delay (tpd) in the -10 speed grade. Per the MAX 3000A family datasheet, the core is fabricated on an advanced CMOS process and operates from a single 3.3 V supply while remaining 5 V-tolerant on its I/O pins. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, instant-on programmable logic device that bridges the gap between discrete 74-series glue logic and larger FPGAs. The MAX architecture implements sum-of-products logic through an EEPROM-based programmable AND/OR array with distributed macrocells, giving deterministic timing, zero-configuration delay, and the ability to retain bitstream without external boot memory. In the system hierarchy, a CPLD sits above simple PLDs (PAL/GAL) but below FPGAs in density, and is widely used as interface bridging, bus decoding, and power-sequencing logic. Key features of the EPM3256AQC208-10N include in-system programmability (ISP) compliant with IEEE Std. 1532, JTAG-based boundary-scan test support via IEEE 1149.1, open-drain output option on every I/O for wired-OR control planes, and a MultiVolt I/O interface that accepts 5.0 V, 3.3 V, and 2.5 V signaling on a single device. The -10 speed grade delivers a 10 ns tpd and supports internal counter frequencies up to 227.3 MHz, sufficient for state-machine and address-decoding tasks. Architecturally, the device integrates 16 Logic Array Blocks (LABs), each containing 16 macrocells, interconnected through a low-skew programmable interconnect array (PIA). The non-volatile EEPROM configuration cell eliminates external boot PROMs and supports field upgrades through the JTAG ISP chain. Typical applications include industrial control boards, legacy peripheral glue logic, address decoding for microprocessors, asynchronous bus arbitration, I/O expansion, and pin-level signal conditioning. The 208-pin PQFP package is also popular for through-hole-friendly rework and long-life-cycle industrial equipment maintenance. When designing with this part, note that the 208-pin PQFP (28x28 mm body, 0.5 mm pitch) requires careful fan-out routing and adequate thermal relief on inner copper pours for production reflow. This page synthesizes cross-distributor pricing, same-package drop-in alternatives, and practical MAX 3000A design notes not assembled in any single manufacturer document.

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EPM3256AQC208-7 - 256 Macro Cell 5K Gate MAX 3000A CPLD | Altera
EPM3256AQC208-7

EPM3256AQC208-7 - 256 Macro Cell 5K Gate MAX 3000A CPLD | Altera

The Altera EPM3256AQC208-7 is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, providing 256 macro cells, 5,000 usable gates, and up to 161 user I/Os in a 208-pin Plastic Quad Flat Pack (PQFP) package. Operating on a 3.3 V core supply, the device delivers pin-to-pin propagation delays as fast as 7.5 ns (-7 speed grade) and supports MultiVolt I/O interfacing with 5.0 V, 3.3 V, and 2.5 V logic levels. A Complex Programmable Logic Device (CPLD) is a non-volatile, electrically erasable programmable logic device that combines multiple PAL-like logic blocks on a single die with a central interconnect matrix. CPLDs sit in the programmable logic hierarchy between small SPLDs (Simple PLDs like PALs/GALs) and larger FPGAs, offering deterministic timing, instant-on behavior from on-chip EEPROM, and high-drive I/O capability — making them ideal for glue logic, bus bridging, and control-plane functions where predictable timing is critical. Key features of the EPM3256AQC208-7 include 4.5 ns pin-to-pin logic delays (at the -10 speed grade; this -7 grade is 7.5 ns), counter frequencies up to 126.6 MHz, IEEE Std. 1532-compliant in-system programmability (ISP) via a 3.3 V interface, and 16 Logic Array Blocks (LABs) interconnected by a Programmable Interconnect Array (PIA). The 208-PQFP package is a 28 mm x 28 mm surface-mount plastic quad flat pack rated for 0 °C to 70 °C commercial temperature operation. The architecture combines macro cell flip-flops with shared logic expanders, allowing designers to implement up to 256 logic functions with up to 16 product terms per macro cell. Typical applications include bus interface bridging, peripheral control, address decoding, state-machine implementation, and configuration logic for FPGA-based systems where instant-on, non-volatile storage of logic is required. The MultiVolt I/O supports mixed-voltage designs without external level shifters. When designing with this part, note that the AQC suffix indicates the commercial 0-70 °C grade in PQFP packaging. Verify PCB footprint compatibility against the 208-PQFP land pattern before layout. For new designs, the MAX II family (EPM240, EPM570) is the modern recommended successor. This page synthesizes distributor pricing, drop-in alternatives from the same MAX 3000A family, and practical design notes not consolidated on the manufacturer datasheet.

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EPM3256AQC208-7N - MAX 3000A CPLD, 256 Macros, 7.5ns | Intel / Altera
EPM3256AQC208-7N

EPM3256AQC208-7N - MAX 3000A CPLD, 256 Macros, 7.5ns | Intel / Altera

The Intel (formerly Altera) EPM3256AQC208-7N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, delivering 256 macro cells, 161 user I/Os, and a 7.5 ns pin-to-pin propagation delay in a 208-pin PQFP package. It operates from a 3.3 V core supply with multi-voltage I/O support (3.3 V or 2.5 V on VCCIO), enabling glueless interfacing to 3.3 V, 2.5 V, and 5.0 V system domains when used with 5.0-V tolerant inputs. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that sits between simple PAL/GAL devices and larger FPGAs in the programmable logic hierarchy. CPLD -> Programmable Logic -> Logic IC -> Semiconductor. The MAX 3000A family uses an EEPROM-based architecture, so designs are retained without an external configuration memory and the device powers up instantly to its programmed state, an advantage over SRAM-based FPGAs that require a configuration flash. Key features include 5,000 usable gates, a maximum internal operating frequency of 126.6 MHz, 3.3-V in-system programmability (ISP) compliant with IEEE Std. 1532, four dedicated inputs for global clock/clear/preset/OE control, and a programmable interconnect array that routes every macro cell pin to any I/O. MultiVolt I/O lets VCCIO be tied to 3.3 V or 2.5 V independently of VCCINT, supporting mixed-voltage board designs. The EPM3256AQC208-7N uses a classic MAX architecture with EEPROM configuration cells, an LAB (Logic Array Block) of 16 macro cells each, an expandable product-term allocator, and a programmable interconnect array (PIA). JTAG boundary-scan and ISP together enable board-level programming and test without removing the device, simplifying manufacturing flow. Typical applications include bus-interface glue logic in industrial controllers, address decoding and register decoding in legacy microcontroller boards, state-machine and protocol-bridge implementation in telecom backplane designs, and glue logic between processors and peripherals in 3.3 V embedded systems. The 161 available I/Os suit medium-density parallel interfaces such as 16/32-bit memory buses. When designing with this device, route VCCINT and VCCIO planes with low-impedance decoupling. Place one 0.1 uF + one 10 uF per supply pin pair, and use the Quartus (or legacy MAX+PLUS II) toolchain for fitting, timing analysis, and ISP programming. The PQFP-208 footprint requires careful soldering and inspection for production reliability. This page synthesizes distributor pricing, drop-in alternative MAX 3000A variants, comparison data, and practical design notes not found in the manufacturer datasheet.

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EPM3256AQI208-10 - MAX 3000A 256-Macro CPLD, 10ns, PQFP-208 | Altera
EPM3256AQI208-10

EPM3256AQI208-10 - MAX 3000A 256-Macro CPLD, 10ns, PQFP-208 | Altera

The Altera EPM3256AQI208-10 is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, packaged in a 208-pin Plastic Quad Flat Pack (PQFP) with industrial temperature grade and 10ns pin-to-pin propagation delay. The device integrates 256 macro cells, 5,000 usable gates, and 161 user I/Os, and is rated for a maximum counter frequency of 95.2 MHz with internal counter speeds up to 227.3 MHz. It supports 3.3-V in-system programmability (ISP) via IEEE 1149.1 JTAG and MultiVolt I/O interfaces that allow the 3.3-V core to interoperate 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-style logic array blocks with a central interconnect matrix, sitting in the hierarchy between simple SPLDs/GALs and larger FPGAs. CPLDs are characterized by deterministic, near-zero standby power, instant-on behavior, and predictable timing - making them preferred for glue logic, bus interfacing, and state-machine control rather than high-density data-path processing. Key features of the EPM3256AQI208-10 include 4.5-ns pin-to-pin logic delays, a 10ns tPD in the -10 speed grade, PCI-SIG compliance per PCI Local Bus Specification Revision 2.2, and open-drain or programmable I/O standards. The MAX 3000A family is supported by the Altera Quartus development environment (legacy MAX+PLUS II also supports it). The 208-pin PQFP offers a fine-pitch gull-wing solution for boards where high I/O count is needed in a manageable surface-mount footprint. The EPM3256AQI208-10 architecture uses EEPROM configuration memory, so the design loads at power-up without external boot memory and retains programming across power cycles. Each macro cell contains a programmable AND/OR array plus a configurable flip-flop, and the logic array blocks (LABs) feed a fast programmable interconnect array (PIA) shared across the device. Typical applications include PCI bus interface glue logic, microcontroller address decoding, bus arbitration, I/O expansion, industrial control state machines, and legacy peripheral replacement. The 161 usable I/Os are sufficient for parallel interfaces, address/data bus steering, and multi-channel control planes. Designers also use this part for board-level configuration, interrupt steering, and timing-sensitive control logic where FPGAs would be overkill. When designing with the EPM3256AQI208-10, observe the MAX 3000A I/O standard selection rules and provide proper decoupling (0.1 uF per VCC pin group, plus bulk capacitance). Unused I/O pins should be left floating or driven, never tied to opposing rails. JTAG programming requires TCK/TMS/TDI/TDO pulled to defined states per IEEE 1149.1. This page consolidates distributor stock, drop-in alternative MPNs from the MAX 3000A family, and design notes not found in the standalone datasheet - including PCI compliance context, JTAG ISP considerations, and PQFP layout guidance.

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