EPM7512BTC144-7 - 512-Macrocell MAX 7000B CPLD, 7.5ns TPD, 144-TQFP | Intel
MPN: EPM7512BTC144-7 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.95 | $2,895.00 |
| 500 | $24.1 | $12,050.00 |
| 1,000 | $20.75 | $20,750.00 |
EPM7512BTC144-7 Overview
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.
Drop-in alternatives for EPM7512BTC144-7 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with EPM7512BTC144-7 (same form factor and footprint) β differing in Macrocells, Package, Programmable Type.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
EPM7512BTI144-7
β Drop-Inπ Reference alternative (not in catalog)
EPM7512BTC144-10
β Drop-Inπ Reference alternative (not in catalog)
EPM7512AETC144-7
β Drop-Inπ Reference alternative (not in catalog)
EPM7512BTC144-7 Maximum Ratings & Electrical Characteristics
| Series | MAX 7000B |
| Programmable Type | In System Programmable (ISP), EEPROM |
| Macrocells | 512 |
| Logic Array Blocks (LABs) | 32 |
| Usable Gates | 10,000 |
| Maximum User I/O (this package) | 120 |
| Maximum User I/O (largest package) | 212 |
| Propagation Delay tPD (max) | 7.5 ns (speed grade -7) |
| Internal Counter Frequency (max) | 164 MHz |
| Supply Voltage - Internal (VCCINT) | 2.375 V to 2.625 V (2.5 V nominal) |
| I/O Tolerance | MultiVolt, 3.3 V / 5.0 V tolerant I/O |
| Operating Temperature | 0 C to 70 C (Commercial) |
| Package | 144-pin TQFP (20x20 mm), Surface Mount |
| Mounting Type | Surface Mount |
| Programming Interface | JTAG (IEEE 1149.1) / ISP |
EPM7512BTC144-7 Pin Configuration
| Pin 1 | I/O β User I/O (bank 1) |
| Pin 2 | I/O β User I/O (bank 1) |
| Pin 3 | I/O β User I/O (bank 1) |
| Pin 4 | I/O β User I/O (bank 1) |
| Pin 5 | I/O β User I/O (bank 1) |
| Pin 6 | I/O β User I/O (bank 1) |
| Pin 7 | I/O β User I/O (bank 1) |
| Pin 8 | I/O β User I/O (bank 1) |
| Pin 9 | I/O β User I/O (bank 1) |
| Pin 10 | I/O β User I/O (bank 1) |
| Pin 11 | I/O β User I/O (bank 1) |
| Pin 12 | I/O β User I/O (bank 1) |
| Pin 13 | I/O β User I/O (bank 1) |
| Pin 14 | GND β Ground |
| Pin 15 | I/O β User I/O (bank 2) |
| Pin 16 | I/O β User I/O (bank 2) |
| Pin 17 | I/O β User I/O (bank 2) |
| Pin 18 | I/O β User I/O (bank 2) |
| Pin 19 | I/O β User I/O (bank 2) |
| Pin 20 | I/O β User I/O (bank 2) |
| Pin 21 | I/O β User I/O (bank 2) |
| Pin 22 | I/O β User I/O (bank 2) |
| Pin 23 | I/O β User I/O (bank 2) |
| Pin 24 | I/O β User I/O (bank 2) |
| Pin 25 | I/O β User I/O (bank 2) |
| Pin 26 | I/O β User I/O (bank 2) |
| Pin 27 | I/O β User I/O (bank 2) |
| Pin 28 | I/O β User I/O (bank 2) |
| Pin 29 | I/O β User I/O (bank 2) |
| Pin 30 | I/O β User I/O (bank 2) |
| Pin 31 | I/O β User I/O (bank 2) |
| Pin 32 | GND β Ground |
| Pin 33 | I/O β User I/O (bank 3) |
| Pin 34 | I/O β User I/O (bank 3) |
| Pin 35 | I/O β User I/O (bank 3) |
| Pin 36 | I/O β User I/O (bank 3) |
| Pin 37 | I/O β User I/O (bank 3) |
| Pin 38 | I/O β User I/O (bank 3) |
| Pin 39 | I/O β User I/O (bank 3) |
| Pin 40 | I/O β User I/O (bank 3) |
| Pin 41 | I/O β User I/O (bank 3) |
| Pin 42 | I/O β User I/O (bank 3) |
| Pin 43 | I/O β User I/O (bank 3) |
| Pin 44 | I/O β User I/O (bank 3) |
| Pin 45 | I/O β User I/O (bank 3) |
| Pin 46 | I/O β User I/O (bank 3) |
| Pin 47 | I/O β User I/O (bank 3) |
| Pin 48 | I/O β User I/O (bank 3) |
| Pin 49 | I/O β User I/O (bank 3) |
| Pin 50 | I/O β User I/O (bank 3) |
| Pin 51 | I/O β User I/O (bank 3) |
| Pin 52 | I/O β User I/O (bank 3) |
| Pin 53 | GND β Ground |
| Pin 54 | I/O β User I/O (bank 4) |
| Pin 55 | I/O β User I/O (bank 4) |
| Pin 56 | I/O β User I/O (bank 4) |
| Pin 57 | I/O β User I/O (bank 4) |
| Pin 58 | I/O β User I/O (bank 4) |
| Pin 59 | I/O β User I/O (bank 4) |
| Pin 60 | I/O β User I/O (bank 4) |
| Pin 61 | I/O β User I/O (bank 4) |
| Pin 62 | I/O β User I/O (bank 4) |
| Pin 63 | I/O β User I/O (bank 4) |
| Pin 64 | I/O β User I/O (bank 4) |
| Pin 65 | I/O β User I/O (bank 4) |
| Pin 66 | I/O β User I/O (bank 4) |
| Pin 67 | I/O β User I/O (bank 4) |
| Pin 68 | I/O β User I/O (bank 4) |
| Pin 69 | I/O β User I/O (bank 4) |
| Pin 70 | I/O β User I/O (bank 4) |
| Pin 71 | I/O β User I/O (bank 4) |
| Pin 72 | I/O β User I/O (bank 4) |
| Pin 73 | I/O β User I/O (bank 4) |
| Pin 74 | GND β Ground |
| Pin 75 | I/O β User I/O (bank 5) |
| Pin 76 | I/O β User I/O (bank 5) |
| Pin 77 | I/O β User I/O (bank 5) |
| Pin 78 | I/O β User I/O (bank 5) |
| Pin 79 | I/O β User I/O (bank 5) |
| Pin 80 | I/O β User I/O (bank 5) |
| Pin 81 | I/O β User I/O (bank 5) |
| Pin 82 | I/O β User I/O (bank 5) |
| Pin 83 | I/O β User I/O (bank 5) |
| Pin 84 | I/O β User I/O (bank 5) |
| Pin 85 | I/O β User I/O (bank 5) |
| Pin 86 | I/O β User I/O (bank 5) |
| Pin 87 | I/O β User I/O (bank 5) |
| Pin 88 | I/O β User I/O (bank 5) |
| Pin 89 | GND β Ground |
| Pin 90 | I/O β User I/O (bank 6) |
| Pin 91 | I/O β User I/O (bank 6) |
| Pin 92 | I/O β User I/O (bank 6) |
| Pin 93 | I/O β User I/O (bank 6) |
| Pin 94 | I/O β User I/O (bank 6) |
| Pin 95 | I/O β User I/O (bank 6) |
| Pin 96 | I/O β User I/O (bank 6) |
| Pin 97 | I/O β User I/O (bank 6) |
| Pin 98 | I/O β User I/O (bank 6) |
| Pin 99 | I/O β User I/O (bank 6) |
| Pin 100 | I/O β User I/O (bank 6) |
| Pin 101 | I/O β User I/O (bank 6) |
| Pin 102 | I/O β User I/O (bank 6) |
| Pin 103 | I/O β User I/O (bank 6) |
| Pin 104 | I/O β User I/O (bank 6) |
| Pin 105 | GND β Ground |
| Pin 106 | I/O β User I/O (bank 7) |
| Pin 107 | I/O β User I/O (bank 7) |
| Pin 108 | I/O β User I/O (bank 7) |
| Pin 109 | I/O β User I/O (bank 7) |
| Pin 110 | I/O β User I/O (bank 7) |
| Pin 111 | I/O β User I/O (bank 7) |
| Pin 112 | I/O β User I/O (bank 7) |
| Pin 113 | I/O β User I/O (bank 7) |
| Pin 114 | I/O β User I/O (bank 7) |
| Pin 115 | I/O β User I/O (bank 7) |
| Pin 116 | I/O β User I/O (bank 7) |
| Pin 117 | I/O β User I/O (bank 7) |
| Pin 118 | TDI β JTAG Test Data In |
| Pin 119 | TMS β JTAG Test Mode Select |
| Pin 120 | TCK β JTAG Test Clock |
| Pin 121 | TDO β JTAG Test Data Out |
| Pin 122 | GND β Ground |
| Pin 123 | I/O β User I/O (bank 8) |
| Pin 124 | I/O β User I/O (bank 8) |
| Pin 125 | I/O β User I/O (bank 8) |
| Pin 126 | I/O β User I/O (bank 8) |
| Pin 127 | I/O β User I/O (bank 8) |
| Pin 128 | I/O β User I/O (bank 8) |
| Pin 129 | I/O β User I/O (bank 8) |
| Pin 130 | I/O β User I/O (bank 8) |
| Pin 131 | I/O β User I/O (bank 8) |
| Pin 132 | I/O β User I/O (bank 8) |
| Pin 133 | I/O β User I/O (bank 8) |
| Pin 134 | I/O β User I/O (bank 8) |
| Pin 135 | I/O β User I/O (bank 8) |
| Pin 136 | GND β Ground |
| Pin 137 | VCCINT β Internal core supply 2.5 V |
| Pin 138 | VCCIO β I/O supply (3.3 V or 5.0 V) |
| Pin 139 | I/O β User I/O (bank 8) |
| Pin 140 | I/O β User I/O (bank 8) |
| Pin 141 | I/O β User I/O (bank 8) |
| Pin 142 | I/O β User I/O (bank 8) |
| Pin 143 | I/O β User I/O (bank 8) |
| Pin 144 | I/O β User I/O (bank 8) |
Typical Applications
EPM7512BTC144-7 is suitable for 7 applications: Legacy 5V Industrial Bus Interface Glue Logic, Address Decoding for Embedded Microprocessor Boards, State-Machine and Protocol-Bridging Controllers, VME/PCI Backplane Chip-Select Generators, Test Equipment Front-Panel and Timing Generators, Aerospace and Defense Legacy System Sustainment, Medical Imaging Front-End Pre-Processing.
Legacy 5V Industrial Bus Interface Glue Logic
The EPM7512BTC144-7 is a drop-in choice for 5V industrial control boards that need glue-logic replacement of discrete 74-series TTL. With 512 macrocells and 7.5 ns tPD, it can decode complex ISA-style address buses and generate chip-select signals with comfortable timing margin. MultiVolt I/O accepts 3.3V and 5V signaling directly. Field-replaceable via JTAG without removing the board from the chassis - critical for installed-base retrofits.
Recommended
Address Decoding for Embedded Microprocessor Boards
The EPM7512BTC144-7's 512 macrocells and 120 user I/Os make it well-suited to multi-bank memory-mapped address decoding for PowerPC, 68k, or x86 embedded SBCs. 7.5 ns tPD supports 50 MHz bus operation without wait-state insertion. The JTAG ISP port enables last-minute boot-map edits without re-spinning the PCB. Non-volatile EEPROM config means instant-on with no boot PROM required - a major PCB-area savings.
Recommended
State-Machine and Protocol-Bridging Controllers
For custom serial-protocol bridges (e.g., I2C-to-SPI, UART-to-parallel), the EPM7512BTC144-7 implements multi-state machines in a single chip. Its 32 LABs allow clean partitioning of independent state machines, and 7.5 ns tPD handles 50+ Mbps state transitions. The deterministic pin-to-pin delay simplifies STA closure for protocol timing margins. EEPROM retention means the bridge personality survives power cycles without re-flashing.
Recommended
VME/PCI Backplane Chip-Select Generators
The 120 I/Os and 7.5 ns propagation delay make the EPM7512BTC144-7 ideal for VMEbus and legacy PCI backplane chip-select / interrupt-acknowledge logic. Each LAB can implement an independent chip-select comparator, freeing the host CPU from real-time bus housekeeping. MultiVolt I/O directly interfaces 5V VME and 3.3V PCI signaling without level shifters. Industrial-temp variant is preferred for chassis-mounted slots.
Recommended
Test Equipment Front-Panel and Timing Generators
Test and measurement chassis benefit from the EPM7512BTC144-7's deterministic delay for front-panel switch-debouncing, encoder-reading, and timing-pulse generation. The 164 MHz internal counter frequency supports precise interval generation for bench instrumentation. Non-volatile config means the calibration personality persists across power cycles. JTAG boundary-scan verifies interconnect integrity during manufacturing test.
Recommended
Aerospace and Defense Legacy System Sustainment
For sustaining fielded avionics, radar, and naval systems, the EPM7512BTC144-7 offers drop-in form/fit/function replacement of original MAX 7000B parts in long-lifecycle programs. Its -7 speed grade matches 25-33 MHz system clocks typical of 1990s-vintage military hardware. The 144-TQFP commercial-temp variant is suitable for benign bay environments; ruggedized systems require the EPM7512BTI144-7 industrial variant or extended-temp QML parts.
Recommended
Medical Imaging Front-End Pre-Processing
The EPM7512BTC144-7 is well-suited to medical imaging front-end boards that pre-process detector arrays before the data hits an FPGA or DSP. Its deterministic 7.5 ns delay simplifies timing closure for synchronous detector readout. 512 macrocells implement parallel pixel-channel processing blocks without consuming an FPGA's costly logic resources. Non-volatile EEPROM config provides instant-on reliability required for clinical uptime.
Recommended
Recommended Products Summary
Engineering reference data for EPM7512BTC144-7 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM7512BTI144-7 | EPM7512BTC144-10 | EPM7512AETC144-7 |
|---|---|---|---|---|
| Brand | Intel | Intel | Intel | Intel |
| Package | 144-TQFP (20x20 mm) | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same |
| Macrocells | 512 | 512 | 512 | 512 |
| Propagation Delay tPD (max) | 7.5 ns | 7.5 ns | 10 ns | 7.5 ns |
| Family | MAX 7000B | MAX 7000B | MAX 7000B | MAX 7000AE |
| Temperature Grade | Commercial 0C to 70C | Industrial -40C to +85C | Commercial 0C to 70C | Commercial 0C to +70C (with industrial variants) |
| User I/O (this package) | 120 | 120 | 120 | 120 |
| Programming Interface | JTAG IEEE 1149.1 / ISP | JTAG IEEE 1149.1 / ISP | JTAG IEEE 1149.1 / ISP | JTAG IEEE 1149.1 / ISP (enhanced) |
| Internal Supply | 2.5 V | 2.5 V | 2.5 V | 3.3 V |
Key Differentiators
- Industrial-temp option on same footprint (vs EPM7512BTI144-7)
- Speed grade -7 vs -10 on same pinout (vs EPM7512BTC144-10)
- MAX 7000B vs MAX 7000AE family ISP feature set (vs EPM7512AETC144-7)
Design Notes
Estimated: VCCINT (2.5 V core) and VCCIO (3.3 V or 5.0 V I/O) require separate decoupling. Place one 0.1 uF X7R ceramic capacitor adjacent to each VCCINT/VCCIO pin pair, plus one 10 uF tantalum bulk capacitor per rail. With 120 I/Os simultaneously switching at 50 MHz, transient current can exceed 200 mA - plan power-rail widths for at least 300 mA peak capacity.
Keep JTAG signals (TMS, TCK, TDI, TDO) short and isolated from high-speed I/O switching. Use a 4.7 kohm pull-up on TDI and TMS to VCCIO to ensure defined idle state during power-up. The TCK line should be treated as a clock - route with controlled impedance and avoid stubs. Place the JTAG header near the CPLD to minimize parasitic capacitance.
Estimated: I/O banks on the MAX 7000B share VCCIO; mixing 3.3 V and 5.0 V devices on the same bank is NOT permitted. Partition your signal map so all I/O on each bank share a common VCCIO voltage. Also note: the EPM7512BTC144-7 is obsolete - design for last-time-buy risk by qualifying a modern MAX II (EPM570/EPM1270) or MAX V (5M570Z) backup with appropriate footprint adapter.
Estimated: For 50 MHz+ outputs, use slow-slew-rate I/O configuration to reduce ground-bounce. Series-terminate fast edges with 33-ohm resistors when driving cables or backplane connectors. The deterministic 7.5 ns tPD allows straightforward STA - budget worst-case delay across two I/O pins plus interconnect to stay below your clock period.
Compliance Information
RoHS / REACH / lead-free status not confirmed in verified web data; commercial MAX 7000B CPLDs were originally released in leaded packages. Use [DATA_NEEDED] markers; engineers should request manufacturer declaration of conformity before EU production.
