FPGA 與 CPLD
產品（7,100+)
EPM7256EGI192-15 - 256-Macrocell MAX 7000 CPLD 5V 192-CPGA
The Intel (Altera) EPM7256EGI192-15 is a high-density EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000 family, delivering 5,000 usable gates and 256 macrocells in a 192-pin Ceramic Pin Grid Array (CPGA) package. It features a 15 ns pin-to-pin propagation delay, a maximum operating frequency of 76.9 MHz, and operates from a single 5 V supply with in-system programmability (ISP) via IEEE 1149.1 JTAG. The device integrates 256 macrocells across 16 logic array blocks (LABs) and provides 12 dedicated input pins plus 192 I/O pins for high I/O-count glue-logic applications. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic device that sits between simple PAL/GAL devices and high-density FPGAs. It is built from multiple SPLD-style macrocell blocks interconnected by a programmable switch matrix (PIA), giving it predictable timing, deterministic propagation delays, and instant-on behavior from internal EEPROM configuration memory. CPLDs are widely used for address decoding, bus interfacing, state-machine control, and peripheral glue logic where fast, deterministic response and unlimited in-system reprogrammability matter more than raw logic density. Key features of the EPM7256EGI192-15 include: 256 macrocells across 16 LABs, 5,000 usable gates, 15 ns tPD (pin-to-pin), 76.9 MHz fCNT, 192 user I/O pins, 12 dedicated input pins, 5 V in-system programmability via JTAG (IEEE Std 1149.1), and programmable power-saving modes that reduce standby current on unused macrocells. Each macrocell contains a programmable AND/OR array with a flip-flop, allowing registered or combinatorial logic with individually programmable clear, preset, and clock options. Architecturally, the EPM7256EGI192-15 uses Altera's classic MAX 7000E second-generation architecture with enhanced interconnect (the PIA) and per-macrocell EEPROM configuration bits. The 192-CPGA package supports military and industrial temperature grades (the "I" suffix) and provides robust thermal performance for high-reliability embedded systems. The device is supported by Altera's classic MAX+PLUS II and Quartus design flows (legacy support). Typical applications include high-density address decoding in 32-bit/64-bit microprocessor systems, PCI bus interface glue logic, peripheral controllers (UART, DMA, memory controllers), industrial control state machines, and military/aerospace systems requiring radiation-tolerant ceramic-packaged logic. The 5 V core and 5 V tolerant I/Os also make it attractive as a direct replacement for legacy TTL/CMOS 74-series logic in board redesigns. When designing with the EPM7256EGI192-15, observe the 5 V supply requirement carefully - this part is not 3.3 V tolerant on its VCCIO pins. Provide bulk decoupling close to the 192-CPGA socket, and budget for the 16 LAB power pins. The ceramic CPGA package is through-hole and socketed; confirm socket availability before committing the layout. This page synthesizes distributor pricing, drop-in same-family alternatives, and design considerations not found in a single source.
EPM7256EQC160-12 - MAX 7000 CPLD, 256 Macrocells, 12ns, PQFP-160
The Altera (now Intel) EPM7256EQC160-12 is a member of the classic MAX 7000 family of Complex Programmable Logic Devices (CPLDs), offering 256 macrocells, 5,000 usable gates, and 132 user I/O pins in a 160-pin Plastic Quad Flat Pack (PQFP) package with a 12 ns pin-to-pin propagation delay. It operates from a single 5 V supply (4.75 V to 5.25 V) at commercial temperature range (0 °C to 70 °C) and is built on a CMOS EEPROM process that provides non-volatile, instant-on configuration. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like logic blocks (called Logic Array Blocks, or LABs) on a single chip, connected through a programmable interconnect matrix. CPLDs sit between simple SPLDs (PAL/GAL) and FPGAs in the programmable logic hierarchy, offering predictable timing, low power, and fast I/O-to-I/O propagation delays. The MAX 7000 family was Altera's second-generation EEPROM-based CPLD architecture and is widely used for glue-logic, bus interfacing, address decoding, and control state-machine replacement. Key features of the EPM7256EQC160-12 include 16 Logic Array Blocks, 256 macrocells, 132 I/O pins, in-system programmability via JTAG, and 5 V tolerant I/O with 3.3 V compatibility. The device delivers up to 90.9 MHz maximum operating frequency with a 12 ns tPD, making it well suited for legacy 5 V system designs. Its non-volatile EEPROM configuration cell means the part retains its logic implementation across power cycles without external boot memory. The MAX 7000 architecture is based on a sum-of-products logic array with macrocell flip-flops, programmable interconnect, and per-pin output enable control. With 16 LABs of 16 macrocells each, the part provides 256 flip-flops for sequential logic. Programmable interconnect delay is fixed (unlike FPGA routing), giving deterministic, predictable timing that simplifies static timing analysis in control and interface designs. Typical applications include 5 V system glue logic, address decoding for microprocessors and DSPs, bus interfacing (ISA, PCI, VME), state-machine replacement, industrial control boards, and telecom infrastructure requiring non-volatile fast-turn-on logic. The 132 I/O count makes it a useful integration point for peripheral bridging in legacy designs. When designing with this part, note that it is part of the mature MAX 7000 family: most PCBs that used it can drop in faster speed grades (-7, -10) or temperature-extended variants (-15I, -20) provided the package and pinout match. Designers should consult the Quartus/MAX+PLUS II support notes for legacy software compatibility. This page combines distributor pricing, drop-in alternative cross-references, and practical design guidance not found in the original datasheet.
EPM7256SQC208-10 - MAX 7000 CPLD 256 Macrocell 10ns | Intel
The Intel (Altera) EPM7256SQC208-10 is a MAX 7000 series Complex Programmable Logic Device (CPLD) with 256 macrocells, 164 user I/O pins, and a 10 ns pin-to-pin propagation delay, housed in a 208-pin Plastic Quad Flat Pack (PQFP) package. It is a 5.0 V in-system programmable device based on Altera's second-generation MAX 7000 EEPROM architecture, offering 5,000 usable gates for glue-logic consolidation and bus-interface applications. A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines the architectural flexibility of a PAL with the density and register resources of an FPGA. Within the logic IC hierarchy, a CPLD sits between simple programmable logic devices (SPLDs) and field-programmable gate arrays (FPGAs), and is classified as a programmable logic device (PLD) under digital logic ICs. MAX 7000 devices use EEPROM configuration cells, so they retain their programmed state through power cycles without an external configuration memory. The EPM7256SQC208-10 delivers 256 macrocells organized into 16 logic array blocks (LABs), each containing 16 macrocells. Its 10 ns tPD supports system clock rates up to approximately 100 MHz for simple logic paths, while the 164 I/O pins make it suitable for wide bus interfacing. The device operates from a single 5.0 V supply with 3.3 V and 5.0 V tolerant I/O, and supports JTAG (IEEE 1149.1) boundary-scan programming and ISP. Typical applications include address decoding and bus bridging in embedded systems, glue logic for legacy 5 V designs, industrial control interfaces, and prototyping where deterministic timing is required. The 208-pin PQFP package is a standard surface-mount footprint that supports automated assembly. When designing with this CPLD, note that the 10 ns speed grade is the slowest of the MAX 7000 family, so timing-critical paths should be verified against the device's timing model. The EEPROM configuration requires no external boot PROM, simplifying board bring-up compared with SRAM-based FPGAs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single reference for selection and replacement decisions.
EPM7256SQC208-10 - MAX 7000S CPLD, 256 Macrocells, 10ns, 208-PQFP | Intel
The Intel (formerly Altera) EPM7256SQC208-10 is a high-density, high-performance EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000S family, featuring 256 macrocells, 164 user I/O pins, a 10 ns pin-to-pin propagation delay, and a 208-pin PQFP package. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macrocell blocks with a central interconnect matrix. CPLDs sit in the programmable logic hierarchy between simple SPLDs (single PLDs such as PAL/GAL) and large FPGAs (Field-Programmable Gate Arrays), providing deterministic timing, instant-on operation, and high-logic-density glue logic in a single chip. The MAX 7000S family uses a second-generation MAX architecture with EEPROM process technology, giving engineers in-system programmability (ISP) and 100% tested stuck-fault coverage. The EPM7256SQC208-10 is built around 16 Logic Array Blocks (LABs), each containing 16 macrocells, and delivers up to 5,000 usable gates. Key features include a 10 ns pin-to-pin delay (tPD), counter speeds up to 175.4 MHz, 3.3V or 5V tolerant I/O (with 5V core on the standard -10 variant), in-system programmability via IEEE 1149.1 JTAG, and PCI-SIG compliant I/O for bus interface designs. The 164 I/O pins and JTAG support make it well-suited for bus bridging, address decoding, and state-machine control. The device implements a programmable interconnect matrix (PIA) that routes all LAB outputs to any LAB input, ensuring predictable timing and removing the routing congestion seen in older SPLD architectures. The MAX 7000S architecture also supports programmable power-saving modes per macrocell, which reduces quiescent current when blocks are idle. Typical applications include telecommunications glue logic, industrial control interface bridging, address decoding and bus arbitration in embedded systems, PCI bus interface glue, and replacement of multiple discrete SSI/MSI logic packages. The combination of non-volatile storage, instant-on, and deterministic timing makes it attractive for safety-critical boot logic. A key design tip: the -10 speed grade refers to the slowest of the MAX 7000S speed grades (-6, -7, -10). When designing, ensure that the timing budget (clock period minus tCO, tSU) accommodates the 10 ns propagation delay and that PCI-compliant I/O is only used when the design meets the PCI Local Bus Specification 2.2 timing requirements. This page synthesizes distributor pricing, in-system programmable drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet.
EPM7256SQC208-15 - 256-Macrocell MAX 7000S CPLD, 15ns | Altera
The Altera (Intel) EPM7256SQC208-15 is a high-density, high-performance Complex Programmable Logic Device (CPLD) from the MAX 7000S family, featuring 256 macrocells, 16 logic array blocks (LABs), and 164 user I/O pins in a 208-pin PQFP package. The device delivers a 15 ns pin-to-pin propagation delay and operates from a single 4.75V to 5.25V supply, providing approximately 5,000 usable gates for glue-logic, bus-interface, and state-machine designs. 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. Architecturally, CPLDs sit between simple SPLDs/PALs and larger FPGAs in the programmable logic hierarchy: like SPLDs they offer instant-on, deterministic, flash- or EPROM-backed configuration, but like FPGAs they integrate hundreds to thousands of gates with predictable timing. The MAX 7000S family uses Altera's second-generation MAX architecture with EEPROM-based configuration cells, eliminating the need for an external boot PROM and enabling in-system programmability (ISP) via JTAG. Key features of the EPM7256SQC208-15 include 256 macrocells distributed across 16 LABs, a global clock network, programmable power management with pin-controlled turbo-bit disable for low-power standby, JTAG-compliant boundary-scan (IEEE 1149.1), and four pin-compatible speed grades (7, 10, 12, 15 ns). The 'C' in the part number designates the commercial 0C to +70C operating range; '15' denotes the 15 ns pin-to-pin delay. Typical applications include bus-bridging logic between microprocessors and peripherals, address decoding and chip-select generation in embedded systems, glue logic in telecommunications and networking equipment, industrial control state machines, and replacement of multiple discrete 74-series logic ICs. The 164 user I/Os comfortably support wide data and address buses plus control signals for legacy parallel interfaces. When designing with the EPM7256SQC208-15, ensure 5V tolerance compatibility for the I/O banks, provide proper decoupling on VCCINT/VCCIO pins, and use the Altera MAX+PLUS II or Quartus II design tools for synthesis, fitting, and JTAG programming. Designers migrating to lower-density footprints should consider the speed-grade variants (EPM7256SQC208-10 for 10 ns, EPM7256SQC208-7 for 7 ns) which are pin-compatible drop-in upgrades.
EPM7256SQC208-15N - MAX 7000S CPLD 256 Macrocell | Altera
The Altera EPM7256SQC208-15N is a MAX 7000S-series Complex Programmable Logic Device (CPLD) with 256 macrocells, 164 user I/O pins, and a 15 ns pin-to-pin propagation delay, housed in a 208-pin Plastic Quad Flat Pack (PQFP) package. It operates from a 5 V supply and is a lead-free, RoHS-compliant device. A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple logic macrocells and a programmable interconnect array on a single die, allowing designers to implement custom combinational and sequential logic without fabricating an ASIC. In the product hierarchy, a CPLD sits between simple PLDs (PAL/GAL) and FPGAs: CPLDs offer deterministic, non-volatile timing and instant-on operation, while FPGAs provide higher logic density. The MAX 7000S family is based on Altera's second-generation MAX architecture, using EEPROM configuration for non-volatile operation. Key features of the EPM7256SQC208-15N include 256 macrocells, 164 I/O pins, 5 V core operation, and a 15 ns maximum pin-to-pin delay (speed grade -15). The device supports in-system programmability (ISP) via the IEEE 1149.1 JTAG boundary-scan interface, enabling field upgrades without removing the device from the board. Its 208-pin PQFP package provides ample I/O for bus-interface, glue-logic, and state-machine applications. The MAX 7000S architecture uses a programmable interconnect array (PIA) to route signals between logic array blocks (LABs), each containing 16 macrocells. This architecture delivers predictable timing independent of routing, a critical advantage over SRAM-based FPGAs in deterministic control applications. The EEPROM configuration retains logic after power-down, eliminating external configuration memory. Typical applications include PCI bus interfaces, ISA-to-PCI bridges, DMA controllers, state machines for industrial automation, and glue logic replacing discrete 74-series TTL. The 164 I/O pins and 256 macrocells make it suitable for medium-complexity designs that would otherwise require dozens of discrete logic packages. When designing with this device, ensure the 5 V supply is well-decoupled with 0.1 uF ceramic capacitors on every VCC pin, and reserve JTAG pins (TCK, TMS, TDI, TDO) for programming and boundary-scan testing. The 15 ns speed grade limits maximum system clock frequency; for higher-speed designs, consider the -10 or -7 speed grades. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single reference for selection, replacement, and layout decisions.
EPM7256SQC208-7 - 256 Macrocell 5V CPLD | Altera | 208-PQFP
The Altera EPM7256SQC208-7 is a MAX 7000S-family Complex Programmable Logic Device (CPLD) offering 256 macrocells, 164 user I/O pins, and 5,000 usable gates with a 7.5 ns pin-to-pin propagation delay, housed in a 208-pin Plastic Quad Flat Pack (PQFP) package. It operates from a 5.0 V supply and delivers a maximum operating frequency of 128.2 MHz. A CPLD (Complex Programmable Logic Device) is a programmable logic IC built from an array of macrocells connected by a programmable interconnect matrix. Unlike an FPGA, which uses fine-grained lookup-table logic and volatile SRAM configuration, a CPLD uses non-volatile EEPROM cells and coarse-grained product-term logic, giving deterministic timing, instant-on operation, and high immunity to single-event upsets. In the logic hierarchy, a CPLD sits between discrete glue logic and full FPGAs: CPLD -> programmable logic device (PLD) -> digital logic IC -> semiconductor. The MAX 7000S architecture is based on EEPROM cells, so the EPM7256SQC208-7 retains its configuration without an external boot device and is in-system programmable (ISP) through the IEEE 1149.1 JTAG interface. Each macrocell provides programmable flip-flops, product-term logic, and I/O control, allowing the device to implement address decoding, bus bridging, state machines, and glue logic with fixed, predictable propagation delays. Key specifications include 256 macrocells, 164 I/O pins, 5,000 usable gates, 7.5 ns tPD, 128.2 MHz fMAX, and 5.0 V VCC operation with 3.3 V-compatible I/O options. The 208-pin PQFP package measures 28 x 28 mm with 0.5 mm lead pitch and is rated for commercial temperature operation. Typical applications include PCI and ISA bus interface logic, address decoding and chip-select generation, DSP and microcontroller glue logic, industrial control backplanes, and legacy system replacement where 5 V logic levels and deterministic timing are required. When designing with this device, note that the MAX 7000S family is a mature, non-volatile 5 V CPLD family; verify lifecycle status and consider pin-compatible MAX 7000S speed-grade variants or MAX 7000B/7000A family members before committing to new production. This page synthesizes distributor availability, drop-in speed-grade alternatives, and practical design notes not found in the manufacturer datasheet.
EPM7256SQC208-7N - MAX 7000S CPLD 256 Macrocell | Altera
The Altera EPM7256SQC208-7N is a MAX 7000S-family Complex Programmable Logic Device (CPLD) offering 256 macrocells, 5,000 usable gates, and 164 user I/O pins, with a 7.5 ns pin-to-pin propagation delay (speed grade -7) and a maximum operating frequency of 128.2 MHz, housed in a 208-pin Plastic Quad Flat Pack (PQFP) package. It operates from a 5 V supply and uses CMOS EEPROM technology for non-volatile configuration. A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple programmable logic array blocks and macrocells into a single chip, allowing designers to implement custom combinational and sequential logic without fabricating an ASIC. In the broader hierarchy, a CPLD sits between simple programmable logic devices (SPLDs/PALs) and FPGAs, offering deterministic timing, non-volatile configuration, and instant-on operation - characteristics that make it ideal for glue logic, bus interfacing, and control-path functions in embedded systems. The MAX 7000S architecture is built around Logic Array Blocks (LABs) containing 16 macrocells each, interconnected by a programmable interconnect array (PIA). Each macrocell provides a flip-flop with programmable clock, clear, and preset, plus I/O control for tri-state, open-drain, and slew-rate settings. The EPM7256S provides 256 macrocells across 16 LABs, delivering 5,000 usable gates for moderate-complexity designs. Key differentiators include its 7.5 ns pin-to-pin delay (the fastest -7 speed grade in the MAX 7000S family), 128.2 MHz maximum frequency, and 164 I/O pins in a 208-pin PQFP. The device supports in-system programmability (ISP) via the IEEE 1149.1 JTAG boundary-scan interface, enabling field upgrades without removing the part from the board. The EEPROM-based configuration is non-volatile, so no external configuration memory is required - a significant advantage over SRAM-based FPGAs. Typical applications include PCI bus interfacing, ISA/VME bus glue logic, DSP/processor peripheral expansion, industrial control state machines, and telecommunications line-card control. The 5 V tolerant I/O and 3.3 V/5 V mixed-voltage operation make it suitable for legacy and mixed-voltage systems. When designing with the EPM7256SQC208-7N, ensure adequate decoupling on each VCC pin and provide a clean JTAG chain for ISP. The 208-pin PQFP requires careful PCB layout for signal integrity at 128 MHz. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPM7256SQI208-10 - MAX 7000 CPLD 256 Macrocell 10ns | Altera
The Altera EPM7256SQI208-10 is a MAX 7000 series EEPROM-based Complex Programmable Logic Device (CPLD) with 256 macrocells, a 10 ns pin-to-pin propagation delay, and 5 V CMOS operation, housed in a 208-pin Plastic Quad Flat Pack (PQFP) package. It is the industrial-temperature (-40 C to +85 C) grade of the MAX 7000 EPM7256 family and provides 5,000 usable gates for glue-logic consolidation. A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple PAL-like logic blocks and a programmable interconnect array on a single die, allowing a designer to implement custom combinational and sequential logic without fabricating an ASIC. CPLDs sit between simple programmable logic devices (SPLDs) and FPGAs in the programmable logic hierarchy, and the MAX 7000 family uses EEPROM configuration cells, so the design is retained after power-down without an external configuration memory. The EPM7256SQI208-10 offers 256 macrocells organized into 16 logic array blocks, 164 maximum user I/O pins, and a 10 ns propagation delay (tPD) that supports system clock rates up to approximately 100 MHz for simple logic paths. The EEPROM-based architecture provides non-volatile operation, in-system programmability via the IEEE 1149.1 JTAG boundary-scan interface, and a programmable power-saving mode that reduces standby current for battery-backed or always-on designs. The MAX 7000 architecture uses a programmable interconnect array (PIA) to route signals between logic array blocks, giving deterministic, predictable timing that is a key advantage over SRAM-based FPGAs for address decoding, bus bridging, and state-machine applications. The 5 V supply range of 4.5 V to 5.5 V allows direct interfacing to legacy 5 V TTL and CMOS logic without level shifters. Typical applications include address decoding and chip-select generation in embedded processors, bus interface and glue logic between legacy peripherals, industrial control state machines, and replacement of discrete 74-series logic in existing 5 V designs. The industrial temperature rating makes it suitable for factory automation and instrumentation equipment. When designing with the EPM7256SQI208-10, note that the device is a legacy MAX 7000 part and is no longer recommended for new designs; verify availability and consider MAX II or MAX V migration for new projects. Decouple each VCC pin with a 0.1 uF ceramic capacitor placed close to the package. This page synthesizes distributor availability, drop-in same-family alternatives, and practical migration design notes that are not consolidated in the manufacturer datasheet, helping engineers evaluate the EPM7256SQI208-10 for legacy 5 V CPLD designs.
EPM7256SRC208-10 - MAX 7000S CPLD 256 Macrocell 10ns | Intel
The Intel (Altera) EPM7256SRC208-10 is a MAX 7000S-family Complex Programmable Logic Device (CPLD) with 256 macrocells, 5,000 usable gates, 164 user I/O pins, and a 10 ns maximum pin-to-pin propagation delay, housed in a 208-pin RQFP (BFQFP) exposed-pad package. It operates from a 4.75 V to 5.25 V supply and is in-system programmable via the IEEE 1149.1 JTAG interface. A CPLD (Complex Programmable Logic Device) is a programmable logic IC built from an array of macrocells and a programmable interconnect matrix. Unlike an FPGA, which distributes logic in fine-grained lookup tables and routing fabric, a CPLD concentrates wide AND/OR product terms in each macrocell, giving deterministic, non-volatile, single-cycle timing. In the logic hierarchy, a CPLD sits between discrete glue logic and FPGAs: CPLD -> programmable logic device (PLD) -> digital logic IC -> semiconductor. The MAX 7000S family uses EEPROM configuration cells, so the design is retained without an external configuration PROM. Key features include 256 macrocells organized into 16 logic array blocks (LABs), 164 user I/O pins, a 10 ns tPD (speed grade -10), and 100 MHz maximum operating frequency. The device supports in-system programmability (ISP) through the JTAG port, allowing field upgrades without removing the part from the board. The 208-pin RQFP package with exposed pad provides a compact 28x28 mm footprint for designs that would otherwise require dozens of 74-series glue-logic packages. The MAX 7000S architecture uses a programmable interconnect array (PIA) to route signals between LABs, with each macrocell containing a flip-flop and programmable product-term logic. This architecture delivers predictable, fixed propagation delays independent of routing, which is critical for bus-interface and state-machine designs where timing closure must be guaranteed. The EEPROM process also provides excellent retention and immunity to single-event upsets compared with SRAM-based FPGAs. Typical applications include PCI/ISA bus bridging, address decoding and chip-select generation, glue-logic consolidation in industrial controllers, legacy system maintenance, and prototyping of state machines. The 5 V supply and 5 V-tolerant I/O make it a natural fit for interfacing modern 3.3 V logic to legacy 5 V peripherals. When designing with this device, note that the part is obsolete and should be designed out for new projects; for existing designs, ensure the JTAG chain is accessible for ISP and provide adequate decoupling on each VCC pin. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPM7256SRC208-10N - MAX 7000S CPLD 256 Macro | Intel
The Intel (Altera) EPM7256SRC208-10N is a MAX 7000S-series Complex Programmable Logic Device (CPLD) with 256 macrocells, 164 user I/O pins, and a 10 ns pin-to-pin propagation delay, housed in a 208-pin RQFP (PowerQuad/plastic quad flat pack) package. It operates from a 5.0 V supply and delivers 100 MHz system-level performance for glue-logic, bus-interface, and state-machine applications. A CPLD (Complex Programmable Logic Device) is a programmable logic IC built from an array of macrocells connected by a programmable interconnect matrix. Unlike an FPGA, a CPLD stores its configuration in non-volatile EEPROM, so it is instantly active at power-up with no external configuration memory. In the logic-IC hierarchy, a CPLD sits between simple programmable logic devices (SPLDs/PALs) and FPGAs, and belongs to the broader programmable logic device (PLD) family within digital integrated circuits. The MAX 7000S family uses Altera's second-generation MAX architecture with EEPROM-based logic elements. The EPM7256S provides 5,000 usable gates, 256 macrocells, and 164 I/O pins, with each macrocell offering programmable flip-flop and product-term allocation. The -10 speed grade gives 10 ns tPD and 100 MHz counter frequency, while the -10N suffix denotes lead-free (Pb-free) RoHS-compliant construction. In-system programmability (ISP) via the IEEE 1149.1 JTAG boundary-scan interface allows field reconfiguration without removing the device from the board. Typical applications include PCI/ISA bus glue logic, address decoding, DMA control, state machines for industrial controllers, and interface bridging between legacy 5 V peripherals and modern logic. The 5.0 V core and I/O make it a natural fit for retrofits and legacy industrial designs where 3.3 V-only devices cannot drive existing TTL-level buses directly. When designing with the EPM7256SRC208-10N, note that the 208-pin RQFP requires careful thermal and signal-integrity planning at 100 MHz, and that the device is programmed through the JTAG port with a compatible USB-Blaster or ByteBlaster cable. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPM7256SRC208-15N - MAX 7000S CPLD 256 Macro | Altera
The Altera EPM7256SRC208-15N is a MAX 7000S-series Complex Programmable Logic Device (CPLD) with 256 macrocells, 164 user I/O pins, and a 15 ns pin-to-pin propagation delay, housed in a 208-pin RQFP (PowerQuad Flat Pack) package. It operates from a 5 V supply and delivers 5,000 usable gates of EEPROM-based programmable logic. A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple logic blocks, macrocells, and a programmable interconnect array on a single die. CPLDs sit between simple PAL/GAL devices and full FPGAs in the programmable logic hierarchy: they offer non-volatile configuration, deterministic timing, and instant-on operation, making them ideal for glue logic, bus interfacing, and state machines. The MAX 7000S family is built on Altera's second-generation MAX architecture using EEPROM cells, so configuration is retained without an external boot device. Key features of the EPM7256SRC208-15N include 256 macrocells organized into 16 logic array blocks (LABs), 164 I/O pins, 5,000 usable gates, and a maximum counter frequency of 76.9 MHz. The 15 ns pin-to-pin delay provides predictable, fixed timing without the routing-dependent variability of SRAM-based FPGAs. The device supports in-system programmability (ISP) via the IEEE 1149.1 JTAG interface, allowing field upgrades without removing the part from the board. The MAX 7000S architecture uses a programmable interconnect array (PIA) to route signals between LABs, giving deterministic propagation delays. Each macrocell contains a flip-flop with independent clock, clear, and preset controls, plus product-term logic for combinatorial functions. The EEPROM process provides high noise immunity and 5 V TTL/CMOS-compatible I/O, simplifying interfacing to legacy 5 V logic. Typical applications include PCI bus glue logic, ISA/PC-104 interface controllers, industrial automation state machines, telecommunications line-card control, test-and-measurement instrumentation, and legacy system replacement where 5 V logic and non-volatile configuration are required. When designing with this CPLD, ensure the 5 V supply is well decoupled with 0.1 uF ceramic capacitors on every VCC pin, and reserve the JTAG pins for in-system programming. The 208-pin RQFP package requires careful thermal and signal-integrity layout for the 164 I/O pins. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single reference for selection, replacement, and layout decisions.
EPM7256SRC208-7 - 256-Macrocell 5V CPLD | Altera | 208-Pin RQFP
The Altera EPM7256SRC208-7 is a MAX 7000S-family Complex Programmable Logic Device (CPLD) offering 256 macrocells, 164 user I/O pins, and 5,000 usable gates in a 208-pin RQFP (PowerQuad/plastic quad flat pack) package. It operates from a 5 V supply with a 7.5 ns pin-to-pin propagation delay and a maximum internal frequency of 128.2 MHz, making it a direct fit for legacy 5 V glue-logic consolidation and bus-interface designs. A CPLD (Complex Programmable Logic Device) is a programmable logic IC built from an array of macrocells connected by a programmable interconnect matrix. Unlike an FPGA, which uses fine-grained lookup tables and routing, a CPLD uses wide AND-OR macrocells that implement sum-of-products logic in a single pass, giving deterministic, non-volatile timing. In the product hierarchy, the EPM7256S sits under CPLD -> programmable logic device (PLD) -> digital logic IC -> semiconductor. The MAX 7000S family is EEPROM-based, so configuration is retained without an external boot device. Key differentiators include 256 macrocells (the largest MAX 7000S density), 164 I/Os, 7.5 ns tPD, 128.2 MHz fMAX, and 5 V EEPROM non-volatile configuration. The -7 speed grade is the fastest standard grade in the family, and the 208-pin RQFP footprint is shared across the EPM7256S speed and temperature variants, allowing board reuse. Architecturally, the device uses EEPROM-based programmable interconnect and macrocells with programmable output enable, global clocking, and fast input registers. The 5 V core and I/O simplify interfacing to legacy TTL/CMOS logic without level shifters, and the non-volatile array eliminates configuration PROMs and boot delays. Typical applications include legacy bus bridging (ISA/PCI glue logic), industrial control backplanes, telecom line-card address decoding, and test equipment that must remain pin-compatible with existing 5 V designs. The 164 I/Os support wide parallel buses, and the 7.5 ns delay supports state machines up to roughly 100 MHz. A key design consideration is that the MAX 7000S family is a mature, non-recommended-for-new-design product; new designs should evaluate MAX V or MAX 10, but existing 5 V boards can continue to use the EPM7256SRC208-7 as a drop-in. Verify the 208-pin RQFP land pattern and thermal pad before layout. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for replacement and lifecycle decisions.
EPM7256SRI208-10 - 256-Macrocell MAX 7000S CPLD | Intel
The Intel (Altera) EPM7256SRI208-10 is a MAX 7000S-family Complex Programmable Logic Device (CPLD) with 256 macrocells, 164 user I/O pins, 5,000 usable gates, and a 10 ns pin-to-pin propagation delay, housed in a 208-pin RQFP (PowerQuad) package. It is a 5 V EEPROM-based CPLD intended for high-density glue-logic integration in legacy telecom, industrial, and instrumentation designs. A CPLD (Complex Programmable Logic Device) is a programmable logic IC built from an array of macrocells and a programmable interconnect matrix, used to implement custom combinational and sequential logic without a full custom ASIC. In the logic hierarchy, a CPLD sits between simple programmable logic devices (SPLDs/PALs) and FPGAs: it offers lower density than an FPGA but deterministic, non-volatile, single-cycle timing. The MAX 7000S family is based on Altera's second-generation MAX architecture, fabricated in advanced CMOS with EEPROM configuration, so the device retains its configuration without an external boot PROM. Key differentiators include 256 macrocells organized into 16 logic array blocks, 164 user I/O pins, in-system programmability (ISP) via JTAG, and a 10 ns pin-to-pin delay that supports counter frequencies up to 100 MHz. The EEPROM-based architecture provides instant-on operation and high design security compared with SRAM-based FPGAs. The device operates from a 5 V supply (4.5 V to 5.5 V internal) and is specified for the industrial temperature range. Its 208-pin RQFP package provides the I/O count needed for wide bus interfaces, address decoding, and state-machine consolidation. Because the MAX 7000S family is mature, the EPM7256SRI208-10 is now obsolete and is typically sourced from independent distributors or replaced by pin-compatible MAX 7000S speed/grade variants. Typical applications include telecom line-card glue logic, industrial control backplanes, legacy bus bridging (ISA/PCI), and instrumentation state machines. When designing with this device, verify the 5 V supply tolerance and JTAG chain integrity, and confirm availability because the part is discontinued. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPM7512BFC256-7 - MAX 7000B CPLD 512 Macro 212 IO | Altera
The Altera EPM7512BFC256-7 is a MAX 7000B-series Complex Programmable Logic Device (CPLD) offering 512 macrocells, 212 user I/O pins, and a 5.5 ns pin-to-pin propagation delay, housed in a 256-ball BGA package. It operates from a 2.5 V core supply and delivers an internal frequency of 164 MHz, making it a high-performance EEPROM-based programmable logic solution for glue-logic consolidation and bus-interface designs. A CPLD (Complex Programmable Logic Device) is a programmable logic IC built from an array of macrocells and a programmable interconnect matrix. Unlike an FPGA, a CPLD uses non-volatile EEPROM configuration memory, so it retains its logic configuration without an external configuration device and is instantly active at power-up. In the product hierarchy, a CPLD sits between simple PLDs (PAL/GAL) and FPGAs: CPLD -> programmable logic device -> digital logic IC -> semiconductor. The MAX 7000B family uses second-generation Multiple Array MatriX (MAX) architecture, which provides predictable, deterministic timing across the entire device. Key features include 512 macrocells, 212 user I/O pins, 5.5 ns propagation delay, 164 MHz internal frequency, and 2.5 V CMOS EEPROM-based configuration. The EEPROM process gives the device non-volatile operation, eliminating the boot-time configuration load required by SRAM-based FPGAs. The 256-ball BGA package supports high I/O density in a compact footprint. The MAX 7000B architecture is based on logic array blocks (LABs) feeding a programmable interconnect array, with each macrocell containing a flip-flop and product-term logic. This architecture delivers consistent, register-rich logic with deterministic timing, which simplifies static timing analysis compared with fine-grained FPGA routing. Typical applications include bus bridging and protocol conversion, address decoding and chip-select generation, power-up sequencing controllers, and legacy system glue logic. The 212 I/O pins make it suitable for wide bus interfaces where a small FPGA would be over-provisioned. When designing with this device, note that the -7 speed grade is the fastest commercial grade and that the 2.5 V core requires careful power-supply decoupling. Because the part is EEPROM-based, in-system programming (ISP) is supported through the JTAG interface, allowing field updates. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for sourcing and design decisions on the EPM7512BFC256-7.
EPM7512BFI256-7 - MAX 7000B CPLD, 512 Macrocells, 256-FBGA | Intel
The Intel (formerly Altera) EPM7512BFI256-7 is a high-performance, 2.5-V CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000B family, packaged in a 256-ball FineLine BGA (FBGA-256) with 212 user I/Os. It integrates 512 macrocells (equivalent to 10,000 usable gates), runs at a maximum internal frequency of 164 MHz, and offers a pin-to-pin propagation delay of 7.5 ns (the "-7" speed grade). The device is built on Altera's second-generation Multiple Array Matrix (MAX) architecture, which provides predictable, deterministic timing and in-system programmability via IEEE 1149.1 JTAG. A CPLD (Complex Programmable Logic Device) is a non-volatile, flash- or EEPROM-based programmable logic IC that contains multiple PAL-like macrocell blocks interconnected by a central programmable interconnect matrix. The MAX 7000 family sits between small SPLDs (PAL/GAL) and large FPGAs: it offers fast, deterministic combinational and sequential logic with instant-on capability and zero-configuration boot time, making it ideal for glue logic, bus interfacing, and power-sequencing tasks where an FPGA would be over-specified and too expensive. The "B" suffix denotes the 2.5-V core generation with multi-volt I/O (1.8 V/2.5 V/3.3 V tolerant), and the "I" suffix in the part number indicates the industrial temperature grade (-40 °C to +105 °C). Key features of the EPM7512BFI256-7 include 512 macrocells, 212 user I/Os, 5.5 ns–7.5 ns propagation delay (depending on grade), 164 MHz internal frequency, and JTAG-compliant in-system programming. The SameFrame pin-out feature shared by all 0.8-mm-pitch Ultra FineLine BGA devices in this family allows designers to migrate across densities (e.g., EPM7128 / EPM7160 / EPM7192 / EPM7256 / EPM7512) on the same PCB footprint. Per Altera's MAX 7000 datasheet, all members of this family share the same Quartus/MAX+PLUS II toolchain, JTAG programming interface, and I/O standards including LVTTL, LVCMOS, PCI, and SSTL. Architecturally, the EPM7512BFI256-7 contains 16 Logic Array Blocks (LABs) of 16 macrocells each, a programmable interconnect array (PIA), and four I/O pins per macrocell block. Each macrocell contains a programmable AND/OR array, a flip-flop, and product-term allocation logic, supporting up to 32 product terms per macrocell with expander terms. The EEPROM-based configuration cell provides non-volatile storage with 100+ program/erase cycles per the device datasheet. Typical applications include bus-interface bridging (e.g., 8/16/32-bit address decoding), power-up sequencing for multi-rail systems, peripheral glue logic in telecom line cards, industrial PLC I/O expansion, and replacement of multiple 74-series TTL/CMOS logic gates in cost-down board designs. The 212 user I/Os also suit LED-driver multiplexing and high-density state-machine controllers. When designing with the EPM7512BFI256-7, ensure the 0.8 mm-pitch BGA is mounted with appropriate PCB fabrication tolerances and that all unused I/Os are left floating or tied per the datasheet recommendation. Decoupling should follow Altera's reference design: 0.1 µF + 10 µF bulk capacitors placed within 100 mil of each supply pin. For migration, the SameFrame pin-out allows drop-in to EPM7256BFI256-7 (256 macrocells) and to EPM7192BFI256-7 (192 macrocells) on the same 256-ball footprint. This page synthesizes distributor pricing from DigiKey, Mouser and Octopart, drop-in same-family migration alternatives, and JTAG programming / thermal design notes not consolidated in the manufacturer datasheet.
EPM7512BQC208-10 - 512-Macrocell MAX 7000B CPLD, 10ns, PQFP-208 | Altera (Intel)
The Altera (Intel) EPM7512BQC208-10 is a high-density, in-system-programmable Complex Programmable Logic Device (CPLD) from the MAX 7000B family, featuring 512 macrocells, 10,000 usable gates, 176 user I/Os, and a 10 ns pin-to-pin propagation delay, housed in a 208-pin Plastic Quad Flat Pack (PQFP-208, 28x28 mm) package. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays with a central interconnect matrix. CPLDs sit between simple SPLDs and FPGAs in the programmable-logic hierarchy, providing fast, deterministic pin-to-pin timing (no boot time), instant-on operation, and EEPROM- or flash-based configuration that retains the bitstream across power cycles. The MAX 7000B family specifically is built on a 2.5 V CMOS EEPROM Multiple Array Matrix (MAX) architecture and was designed as a glue-logic replacement for multiple 74-series TTL parts. Key features of the EPM7512BQC208-10 include 32 Logic Array Blocks (LABs) of 16 macrocells each, four pin-to-pin output enable signals, in-system programmability through a JTAG-compliant IEEE Std. 1149.1 interface, and a commercial operating temperature grade of 0 to +70 degrees C. The device operates from an internal 2.5 V core supply (2.375 V to 2.625 V) and is supported by the legacy Altera MAX+PLUS II and Quartus II design software. Architecturally, the MAX 7000B device uses a second-generation MAX architecture with a programmable interconnect array (PIA) that routes signals between LABs. Each macrocell contains a programmable AND/OR array, a flip-flop, and configurable I/O architecture supporting JTAG boundary-scan testing, which simplifies board-level test in production. The -10 speed grade places this part at the slower end of the MAX 7000B range, trading off fmax for reduced cost and easier timing closure in glue-logic applications. Typical applications include bus-interface bridging, address decoding, state-machine control, peripheral glue logic, industrial I/O expansion, and legacy 5 V/3.3 V system interfacing where the MAX 7000B I/O tolerance is required. The 176 user I/O count is generous for replacing many discrete 74LS/74HC packages with a single device. When designing, note that the EPM7512BQC208-10 is part of the mature MAX 7000B line: many MAX 7000B variants are now NRND or EOL, so check the latest lifecycle status before committing to a new design. The 208-pin PQFP package requires careful PCB layout, with thermal and high-speed signal-integrity considerations; XAIPART can cross-reference compatible MAX 7000B speed grades (e.g., -7, -10, -12, -15) that share this PQFP-208 footprint. This page synthesizes distributor stock data, parametric comparison with sibling MAX 7000B speed grades, and practical design considerations not aggregated in any single source.
EPM7512BQC208-5 - MAX 7000B CPLD 512 Macro 176 IO | Altera
The Altera EPM7512BQC208-5 is a MAX 7000B family Complex Programmable Logic Device (CPLD) with 512 macrocells, 10,000 usable gates, 176 user I/O pins, and a 5 ns pin-to-pin propagation delay, housed in a 208-pin PQFP (28x28 mm) package and operating from a 2.5 V core supply. It is an EEPROM-based, in-system programmable (ISP) device built on the second-generation Multiple Array MatriX (MAX) architecture. A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple logic array blocks and macrocells with non-volatile configuration memory, allowing designers to implement glue logic, state machines, and bus interfaces without an external configuration device. In the logic IC hierarchy, a CPLD sits between simple PLDs (PAL/GAL) and FPGAs: CPLDs offer deterministic, single-cycle timing and instant-on operation, while FPGAs offer higher logic density. The MAX 7000B family is the 2.5 V evolution of the industry-standard MAX 7000 architecture. Key features include 512 macrocells organized into 16 logic array blocks, 176 user I/O pins, a 163.9 MHz internal frequency (5 ns tPD), and EEPROM configuration that retains the design without power. The 2.5 V core reduces dynamic power versus 5 V MAX 7000S devices, and the device supports IEEE 1149.1 JTAG boundary-scan for in-system programming and board-level test. The MAX 7000B architecture uses a programmable interconnect array (PIA) to route all logic signals, giving fully deterministic pin-to-pin delays independent of routing. Each macrocell provides a flip-flop with individual clock, clear, and preset, plus programmable output slew-rate and open-drain options. The 208-pin PQFP package provides 176 I/O with a 0.5 mm lead pitch. Typical applications include PCI/ISA bus glue logic, DSP and microcontroller interface logic, memory controllers, and industrial control state machines. The 5 ns delay and 163.9 MHz operation suit address decoding and handshake logic where predictable timing matters more than raw gate count. When designing with this device, note that the -5 speed grade is the fastest MAX 7000B grade and that the 2.5 V core requires level-compatible I/O planning for 3.3 V or 5 V peripherals. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPM7512BQC208-7 - MAX 7000B CPLD 512 Macro Cells | Altera
The Altera EPM7512BQC208-7 is a MAX 7000B family Complex Programmable Logic Device (CPLD) with 512 macrocells, 10,000 usable gates, and 176 user I/O pins, housed in a 208-pin PQFP (28x28 mm) package and rated for commercial 0C to 90C operation. It operates from a 2.5 V core supply (2.375 V to 2.625 V) and delivers a maximum internal frequency of 90.1 MHz with a 7 ns pin-to-pin propagation delay. A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple logic blocks, macrocells, and a programmable interconnect array on a single die, allowing designers to implement custom digital logic without fabricating an ASIC. Within the logic IC hierarchy, a CPLD sits between simple PLDs (PAL/GAL) and FPGAs: CPLDs offer deterministic timing, non-volatile EEPROM configuration, and instant-on operation, while FPGAs provide higher logic density at the cost of external configuration memory. The MAX 7000B family is built on Altera's second-generation Multiple Array MatriX (MAX) architecture using high-performance 2.5 V CMOS EEPROM technology. Key differentiators of the EPM7512BQC208-7 include its 512 macrocells (the highest density in the MAX 7000B family), 176 user I/O pins, 7 ns propagation delay, and EEPROM-based in-system programmability (ISP) that retains configuration without a battery or boot PROM. The 2.5 V core supply reduces dynamic power versus 5 V MAX 7000S devices while remaining tolerant of legacy 3.3 V system interfaces. The device uses a Multiple Array MatriX architecture with logic array blocks (LABs) feeding a programmable interconnect array, giving predictable, fixed pin-to-pin delays independent of routing. Each macrocell provides programmable flip-flops, product-term logic, and I/O registers, enabling state machines, bus interfaces, and glue logic to be integrated into one device. Typical applications include legacy industrial control boards, PCI/ISA bus bridging, address decoding and chip-select generation, instrumentation glue logic, and replacement of discrete 74-series logic. The 208-pin PQFP footprint is shared across the MAX 7000B family, allowing density migration without PCB redesign. When designing with this CPLD, note that the -7 speed grade is the fastest commercial grade in the family; the -10 and -15 grades trade speed for lower cost. Because the device is EEPROM-based, it is configured at power-up with no external configuration device, simplifying board bring-up compared with SRAM-based FPGAs. This page synthesizes distributor availability, drop-in speed-grade alternatives, and practical design notes for the EPM7512BQC208-7 that are not consolidated in the manufacturer datasheet.
EPM7512BTC144-7 - 512-Macrocell MAX 7000B CPLD, 7.5ns TPD, 144-TQFP | Intel
The Intel EPM7512BTC144-7 is a high-density, EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000B family, delivering 512 macrocells, 10,000 usable gates, and 120 user I/Os in a 144-pin TQFP (20x20 mm) commercial-grade package. It features a maximum pin-to-pin propagation delay (tPD) of 7.5 ns and an internal counter frequency of 164 MHz, with a 2.5-V internal core supply and 5.0-V tolerant I/O, enabling direct interfacing with 3.3-V and 5.0-V system logic. 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. The MAX 7000B architecture is the second-generation Multiple Array MatriX (MAX) family and represents the non-volatile, in-system programmable branch of programmable logic, sitting between small discrete PAL/GAL devices and large SRAM-based FPGAs in the programmable logic hierarchy (PAL -> GAL -> CPLD -> FPGA -> programmable SoC). It uses EEPROM configuration cells that retain the design without external memory and supports the IEEE 1149.1 JTAG boundary-scan interface for in-system programming (ISP) and board-level test. Key specifications include 512 macrocells across 32 logic array blocks (LABs), 212 maximum user I/Os (package-dependent), and a maximum propagation delay of 7.5 ns. The device supports MultiVolt I/O, JTAG ISP, and open-drain output options. Each macrocell contains a programmable AND/OR array with a configurable flip-flop, enabling implementation of complex combinatorial and sequential logic in a single chip. The on-chip ISP via JTAG eliminates the need for external PROM and supports field upgrades. The MAX 7000B architecture uses a bipolar/CMOS process with EEPROM configuration, providing 100 program/erase cycles minimum and 20+ years of data retention. Each macrocell supports a wide range of flip-flop configurations (D, T, JK, SR) and the global OE/clock networks simplify synchronous design. The 144-TQFP package provides adequate thermal headroom for commercial 0C to 70C operation at typical logic frequencies. Typical applications include bus-interface glue logic, peripheral interfacing, state-machine control, address decoding in legacy 5V systems, and bus-protocol bridging in industrial control equipment. Designers choose the EPM7512BTC144-7 for drop-in pin compatibility with earlier MAX 7000 / MAX 7000A designs needing higher density and faster tPD than 128-macrocell predecessors like the EPM7128 family. A key design consideration is that the -7 speed grade (7.5 ns tPD) targets 5V operation; ensure VCCINT is decoupled with 0.1 uF ceramic capacitors near each supply pin. For new designs, consider migrating to the MAX II or MAX V families (lower power, instant-on), but the EPM7512BTC144-7 remains the drop-in choice for sustaining existing 5V MAX 7000B boards and field replacements. This page synthesizes distributor pricing, cross-reference alternatives, and practical design notes that complement - but do not replace - the manufacturer datasheet.
EPM9320ABC356-10 - MAX 9000 CPLD 6K Gates 320 Macros 356-BGA | Altera
The Altera EPM9320ABC356-10 is a high-performance CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 9000 device family, built on the third-generation Multiple Array MatriX (MAX) architecture and offered in a 356-pin BGA package. It delivers 6,000 usable gates, 320 macro cells, and a maximum operating frequency of 144.9 MHz at a 5 V core supply, with the "-10" speed grade denoting its 10 ns pin-to-pin delay. According to the manufacturer datasheet, the device is in-system programmable (ISP) through a built-in IEEE Std. 1149.1 JTAG interface, eliminating the need for an external programmer. A Complex Programmable Logic Device (CPLD) is a non-volatile, instantly-on digital IC that combines multiple PAL/GAL-like logic blocks with a programmable interconnect matrix. Within the broader programmable logic hierarchy, CPLDs sit below FPGAs in density but offer deterministic timing, faster wake-up, and higher I/O-to-logic ratios. They belong to the family of programmable logic devices (PLDs), which are part of the broader digital logic and semiconductor category used to implement glue logic, bus interfacing, state machines, and rapid prototyping of custom digital functions. The EPM9320ABC356-10 integrates in-system programmability, a JTAG boundary-scan test interface, and a 5.0 V core supply, making it suitable for 5 V TTL-compatible system designs. Its 320 macro cells are partitioned into Logic Array Blocks (LABs) interconnected by the MAX programmable interconnect array (PIA), which delivers fast, predictable propagation delays regardless of routing complexity. The 144.9 MHz maximum frequency enables the device to address register-heavy control logic and bus-interface bridging tasks at high speed. The architecture is implemented in 0.5 µm CMOS EEPROM process technology, providing non-volatile configuration storage - the device retains its logic image when power is removed and starts functioning within microseconds of power-up. ISP via JTAG allows field upgrades and in-circuit reconfiguration without removing the part from the board, which simplifies manufacturing and field-service workflows. Typical applications include telecommunications line cards, industrial control and factory automation, glue logic between microprocessors and peripherals, bus-interface bridging, and high-performance state-machine controllers. The wide 5 V tolerance and BGA package make it especially attractive for space-constrained industrial designs where deterministic timing and instant-on behavior are required. When designing with the EPM9320ABC356-10, observe the device's 5 V VCC requirement and ensure the JTAG chain is correctly terminated. Because the part is one of the largest MAX 9000 devices, signal-integrity planning for the BGA-356 footprint, including a solid ground plane and matched-length JTAG traces, is recommended for reliable operation above 100 MHz. This page synthesizes distributor availability, same-family drop-in alternatives, and engineering design notes that go beyond the manufacturer datasheet to support sourcing, replacement, and board-level decisions for the EPM9320ABC356-10.
EPM9320ALC84-10 - MAX 9000 CPLD, 320 Macrocells, 84-PLCC | Intel
The Intel (formerly Altera) EPM9320ALC84-10 is a member of the MAX 9000 family of high-performance, CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs) built on a third-generation Multiple Array MatriX (MAX) architecture. The -10 speed grade delivers a 10 ns pin-to-pin delay across 320 macrocells in a 84-pin PLCC (Plastic Leaded Chip Carrier) package, with 5.0-V 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 device that combines multiple PAL-like logic blocks on a single chip with a central interconnect matrix. CPLDs sit between simple SPLDs (e.g. PAL/GAL) and larger FPGAs in the programmable logic hierarchy: SPLD -> CPLD -> FPGA -> programmable logic -> digital IC -> semiconductor. The MAX 9000 architecture targets high-density glue logic, bus-interface bridging, and state-machine control with deterministic timing that is critical for system-level design. Key features include 320 macrocells (organized across 16 Logic Array Blocks, LABs), 16 dedicated inputs, 52 I/O pins in the 84-PLCC, and PCI Local Bus Specification Revision 2.2 compliance for the -10 speed grade. Each macrocell contains a programmable register with configurable Product-Term allocation, allowing wide combinational and registered logic functions. The 5.0-V ISP interface enables board-level programming via JTAG, eliminating socketed pre-programmed parts and supporting field upgrades. The MAX architecture uses a continuous, central interconnect called the FastTrack Interconnect, providing predictable delay paths between LABs. Compared with smaller MAX 7000 devices, the MAX 9320 doubles logic capacity, and the -10 speed grade is suitable for 33 MHz PCI bus interfaces. The EEPROM-based configuration cell is non-volatile, so the device powers up in a known state with no external boot PROM required, simplifying board bring-up. Typical applications include PCI bus interface glue logic, peripheral controllers for embedded microprocessors, bus protocol translation (e.g., ISA-to-PCI bridges), industrial control state machines, and legacy 5-V system glue logic where deterministic timing and high I/O count are required. Designers choose this part over FPGAs when they need non-volatile, instant-on logic and a deterministic 10 ns timing model. When designing with the EPM9320ALC84-10, observe the PCI 2.2 AC switching characteristics for the -10 speed grade and derate the toggle frequency according to the Power-Down Current vs. Frequency graph in the device family datasheet. The 84-PLCC socket is recommended for prototypes and field upgrades because ISP can be done directly on the board via the JTAG pins. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPM9320ALC84-10N - 320-Macrocell MAX 9000 CPLD, 10ns, 84-PLCC
The Intel (formerly Altera) EPM9320ALC84-10N is a 320-macrocell, 6,000-gate CMOS Complex Programmable Logic Device (CPLD) from the MAX 9000 family, housed in an 84-pin Plastic Leaded Chip Carrier (PLCC) package. The -10 speed grade corresponds to a 10 ns pin-to-pin delay, and the device supports an internal toggle frequency up to 144.9 MHz at 5 V operation. The MAX 9000A family combines high density, in-system programmability, and predictable interconnect timing for glue-logic, bus-interface, and state-machine consolidation designs. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits hierarchically between simple PAL/GAL splds and high-density FPGAs. It provides predictable timing, instant-on operation, and high fan-in macrocell structures, making it ideal for deterministic control logic. CPLDs are typically used for address decoding, peripheral interfacing, bus bridging, and power-sequencing controllers where fixed, low-latency response is required. The MAX 9000 family extends classic EPLD architecture to higher logic densities while retaining the deterministic timing that made the MAX 5000 and MAX 7000 families popular in telecom, industrial, and embedded designs. Key features of the EPM9320ALC84-10N include 320 macrocells distributed across 16 logic array blocks (LABs), 60 user I/O pins, 5 V core operation (5.0 V nominal VCC), in-system programmability via JTAG (IEEE 1149.1), and a commercial 0C to 70C operating temperature range. The device includes per-macrocell registers, programmable interconnect array (PIA), and dedicated input/output control blocks. The 84-pin PLCC package provides through-hole compatibility for legacy industrial backplanes, retrofit designs, and existing production assemblies where socket replacement is preferable to redesign. From an architectural standpoint, the EPM9320A uses Altera's classic MAX architecture with EEPROM-based configuration cells, meaning the device retains its programmed logic without external boot memory. Configuration is loaded via JTAG using a ByteBlaster or compatible programmer, and the part can be reprogrammed thousands of times. The 10 ns tPD and 144.9 MHz fCNT make this part suitable for state machines running at moderate clock rates and for pipelined control logic. Typical applications include legacy industrial control boards, telecom line-card glue logic, address-decoding and chip-select generation, peripheral bus interfacing (ISA, PCI, VME), motor-control state machines, and retrofit/repair scenarios where the original MAX 9000 part must be replaced. The part is also widely used in educational boards, prototype development, and military/aerospace systems where the MAX 9000 family has long design-cycle approval. When designing with the EPM9320ALC84-10N, observe the recommended 5.0 V VCC tolerance (the A-suffix denotes 5 V operation, not the 3.3 V-compatible LC/RC/QI variants). Decouple each VCC/ground pair with a 0.1 F ceramic capacitor placed within 50 mils of the package pin, and adhere to the JTAG chain layout guidelines for multi-device boundary-scan configurations. The 84-PLCC socket should be a low-profile machine-pin or open-frame type rated for the operating temperature range. This page synthesizes distributor pricing, drop-in alternatives drawn from the same MAX 9000 family, and practical design notes not found in the manufacturer datasheet alone.
EPM9320ALC84-15 - MAX 9000 CPLD, 320 Macrocells, 16ns, 84-PLCC | Altera
The Altera EPM9320ALC84-15 is a member of the MAX 9000 Complex Programmable Logic Device (CPLD) family, delivering 320 macrocells organized in 16 logic array blocks (LABs), 56 usable I/O pins, and a 16 ns worst-case propagation delay in a 84-pin Plastic Leaded Chip Carrier (PLCC, J-lead) package with the package designator S-PQCC-J84. The device is fabricated on a 5 V CMOS process and is intended for high-density glue-logic, bus-interface, and state-machine integration in 5 V-tolerant industrial, telecom, and embedded systems. A CPLD (Complex Programmable Logic Device) is a non-volatile, instantly-on programmable logic device that combines multiple PAL-like macrocell blocks with a central interconnect matrix. The MAX 9000 family sits between classic 22V10-style SPLDs and larger FPGAs, targeting designs that need deterministic timing, ISP (in-system programmability) via JTAG, and 100% route-ability at densities up to ~560 macrocells. Compared with an FPGA, a CPLD such as the EPM9320ALC84-15 has lower absolute logic capacity but offers predictable pin-to-pin delays, no external boot PROM, and very low standby current. Key specifications include 320 macrocells, 6 K usable gates, a tPD of 16 ns, a 5 V ±5% (4.75 V to 5.25 V) supply, 56 user I/O lines, and 84 PLCC J-leads. The device supports IEEE Std 1149.1 JTAG boundary-scan, in-system programming via the JTAG port, and a power-down feature that minimizes standby consumption. The 84-pin PLCC package is through-hole-friendly and easy to hand-prototype, which is one of the reasons this part remains specified in long-lifecycle industrial controllers. Architecturally, the EPM9320ALC84-15 uses Altera's classic MAX architecture with EEPROM-based configuration cells, a programmable AND array feeding a fixed OR array, and per-macrocell flip-flops with programmable polarity. The interconnect is a continuous, fast-path switch matrix that delivers uniform 16 ns delays across all pins regardless of placement, which is the principal reason designers choose this family over look-alike FPGAs for control-plane logic. Typical applications include 5 V industrial PLC glue logic, ISA/PCI bus address decoding, motor-control state machines, telecom backplane control, and legacy ASIC replacement in medical and aerospace systems. Designers should also evaluate the EPM9320ALC84-10 (10 ns tPD) when margin is tight, or migrate to MAX II or MAX V CPLDs if lower power is required. When designing with the EPM9320ALC84-15, pay particular attention to the global clock and clear pin assignments and ensure that the JTAG chain is correctly ordered in multi-device boards. The device requires a single 5 V supply and supports ISP via JTAG; an external configuration PROM is not required. This page synthesizes distributor pricing for the EPM9320ALC84-15, same-package drop-in alternatives within the MAX 9000 family and from competing CPLD vendors, and practical design notes not consolidated in any single manufacturer document.