EPM7256EQC160-12 - MAX 7000 CPLD, 256 Macrocells, 12ns, PQFP-160
MPN: EPM7256EQC160-12 ✗ Cuối đờiEPM7256EQC160-12 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho EPM7256EQC160-12 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPM7256EQC160-12 (cùng hình factor và footprint) — khác nhau ở Mounting Type, Operating Temperature, RoHS Status.
EPM7256EQC160-15
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPM7256EQC160-10
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPM7256EQC160-12P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPM7256EQC160-15N
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPM7256EGC192-12
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7256EQC160-12 Tỷ lệ tối đa & tính chất điện
| Family | MAX 7000 |
| Programmable Type | EE PLD (CPLD, in-system programmable EEPROM) |
| Number of Macrocells | 256 |
| Number of Logic Blocks / LABs | 16 |
| Number of Gates | 5,000 usable gates |
| Number of I/O Pins | 132 |
| Propagation Delay tPD (max) | 12 ns |
| Maximum Operating Frequency | 90.9 MHz |
| Supply Voltage VCCINT | 4.75 V to 5.25 V |
| I/O Standard | 5 V TTL, 3.3 V compatible |
| Nhiệt độ hoạt động | 0 °C to 70 °C (Commercial) |
| Hộp / Vỏ | 160-pin PQFP (28 × 28 mm) |
| Kiểu lắp đặt | Surface Mount |
| Process Technology | CMOS EEPROM |
| Programming Interface | JTAG (IEEE 1532 / IEEE 1149.1) |
| Trạng thái RoHS | Compliant (lead-free PQFP) |
| Trạng thái vòng đời | Obsolete |
Cấu hình chân EPM7256EQC160-12
| Chân 1 | I/O — User I/O pin (function depends on user design) |
| Chân 2 | I/O — User I/O pin |
| Chân 3 | I/O — User I/O pin |
| Chân 4 | I/O — User I/O pin |
| Chân 5 | I/O — User I/O pin |
| Chân 6 | I/O — User I/O pin |
| Chân 7 | GND — Ground |
| Chân 8 | I/O — User I/O pin |
| Chân 9 | I/O — User I/O pin |
| Chân 10 | I/O — User I/O pin |
| Chân 11 | I/O — User I/O pin |
| Chân 12 | I/O — User I/O pin |
| Chân 13 | I/O — User I/O pin |
| Chân 14 | I/O — User I/O pin |
| Chân 15 | TDI — JTAG Test Data In (IEEE 1149.1) |
| Chân 16 | I/O — User I/O pin |
| Chân 17 | I/O — User I/O pin |
| Chân 18 | I/O — User I/O pin |
| Chân 19 | I/O — User I/O pin |
| Chân 20 | I/O — User I/O pin |
| Chân 21 | I/O — User I/O pin |
| Chân 22 | I/O — User I/O pin |
| Chân 23 | I/O — User I/O pin |
| Chân 24 | I/O — User I/O pin |
| Chân 25 | GND — Ground |
| Chân 26 | I/O — User I/O pin |
| Chân 27 | I/O — User I/O pin |
| Chân 28 | I/O — User I/O pin |
| Chân 29 | I/O — User I/O pin |
| Chân 30 | I/O — User I/O pin |
| Chân 31 | I/O — User I/O pin |
| Chân 32 | I/O — User I/O pin |
| Chân 33 | VCC — 5 V supply |
| Chân 34 | I/O — User I/O pin |
| Chân 35 | I/O — User I/O pin |
| Chân 36 | I/O — User I/O pin |
| Chân 37 | I/O — User I/O pin |
| Chân 38 | I/O — User I/O pin |
| Chân 39 | I/O — User I/O pin |
| Chân 40 | I/O — User I/O pin |
| Chân 41 | TMS — JTAG Test Mode Select |
| Chân 42 | I/O — User I/O pin |
| Chân 43 | I/O — User I/O pin |
| Chân 44 | I/O — User I/O pin |
| Chân 45 | I/O — User I/O pin |
| Chân 46 | I/O — User I/O pin |
| Chân 47 | I/O — User I/O pin |
| Chân 48 | I/O — User I/O pin |
| Chân 49 | I/O — User I/O pin |
| Chân 50 | I/O — User I/O pin |
| Chân 51 | GND — Ground |
| Chân 52 | I/O — User I/O pin |
| Chân 53 | I/O — User I/O pin |
| Chân 54 | I/O — User I/O pin |
| Chân 55 | I/O — User I/O pin |
| Chân 56 | I/O — User I/O pin |
| Chân 57 | I/O — User I/O pin |
| Chân 58 | I/O — User I/O pin |
| Chân 59 | TCK — JTAG Test Clock |
| Chân 60 | I/O — User I/O pin |
| Chân 61 | I/O — User I/O pin |
| Chân 62 | I/O — User I/O pin |
| Chân 63 | I/O — User I/O pin |
| Chân 64 | I/O — User I/O pin |
| Chân 65 | I/O — User I/O pin |
| Chân 66 | I/O — User I/O pin |
| Chân 67 | I/O — User I/O pin |
| Chân 68 | I/O — User I/O pin |
| Chân 69 | VCC — 5 V supply |
| Chân 70 | I/O — User I/O pin |
| Chân 71 | I/O — User I/O pin |
| Chân 72 | I/O — User I/O pin |
| Chân 73 | I/O — User I/O pin |
| Chân 74 | I/O — User I/O pin |
| Chân 75 | I/O — User I/O pin |
| Chân 76 | I/O — User I/O pin |
| Chân 77 | TDO — JTAG Test Data Out |
| Chân 78 | I/O — User I/O pin |
| Chân 79 | I/O — User I/O pin |
| Chân 80 | I/O — User I/O pin |
| Chân 81 | I/O — User I/O pin |
| Chân 82 | I/O — User I/O pin |
| Chân 83 | I/O — User I/O pin |
| Chân 84 | I/O — User I/O pin |
| Chân 85 | I/O — User I/O pin |
| Chân 86 | GND — Ground |
| Chân 87 | I/O — User I/O pin |
| Chân 88 | I/O — User I/O pin |
| Chân 89 | I/O — User I/O pin |
| Chân 90 | I/O — User I/O pin |
| Chân 91 | I/O — User I/O pin |
| Chân 92 | I/O — User I/O pin |
| Chân 93 | I/O — User I/O pin |
| Chân 94 | I/O — User I/O pin |
| Chân 95 | I/O — User I/O pin |
| Chân 96 | I/O — User I/O pin |
| Chân 97 | VCC — 5 V supply |
| Chân 98 | I/O — User I/O pin |
| Chân 99 | I/O — User I/O pin |
| Chân 100 | I/O — User I/O pin |
| Chân 101 | I/O — User I/O pin |
| Chân 102 | I/O — User I/O pin |
| Chân 103 | I/O — User I/O pin |
| Chân 104 | I/O — User I/O pin |
| Chân 105 | OE1 — Global Output Enable 1 (active low) |
| Chân 106 | I/O — User I/O pin |
| Chân 107 | I/O — User I/O pin |
| Chân 108 | I/O — User I/O pin |
| Chân 109 | I/O — User I/O pin |
| Chân 110 | I/O — User I/O pin |
| Chân 111 | I/O — User I/O pin |
| Chân 112 | I/O — User I/O pin |
| Chân 113 | I/O — User I/O pin |
| Chân 114 | GND — Ground |
| Chân 115 | I/O — User I/O pin |
| Chân 116 | I/O — User I/O pin |
| Chân 117 | I/O — User I/O pin |
| Chân 118 | I/O — User I/O pin |
| Chân 119 | I/O — User I/O pin |
| Chân 120 | I/O — User I/O pin |
| Chân 121 | I/O — User I/O pin |
| Chân 122 | OE2/GCLK2 — Global Output Enable 2 / Global Clock 2 |
| Chân 123 | I/O — User I/O pin |
| Chân 124 | I/O — User I/O pin |
| Chân 125 | I/O — User I/O pin |
| Chân 126 | I/O — User I/O pin |
| Chân 127 | I/O — User I/O pin |
| Chân 128 | I/O — User I/O pin |
| Chân 129 | I/O — User I/O pin |
| Chân 130 | I/O — User I/O pin |
| Chân 131 | VCC — 5 V supply |
| Chân 132 | I/O — User I/O pin |
| Chân 133 | I/O — User I/O pin |
| Chân 134 | I/O — User I/O pin |
| Chân 135 | I/O — User I/O pin |
| Chân 136 | I/O — User I/O pin |
| Chân 137 | I/O — User I/O pin |
| Chân 138 | I/O — User I/O pin |
| Chân 139 | I/O — User I/O pin |
| Chân 140 | I/O — User I/O pin |
| Chân 141 | OE2/GCLK1 — Global Output Enable 2 / Global Clock 1 |
| Chân 142 | I/O — User I/O pin |
| Chân 143 | I/O — User I/O pin |
| Chân 144 | I/O — User I/O pin |
| Chân 145 | I/O — User I/O pin |
| Chân 146 | I/O — User I/O pin |
| Chân 147 | I/O — User I/O pin |
| Chân 148 | I/O — User I/O pin |
| Chân 149 | I/O — User I/O pin |
| Chân 150 | GND — Ground |
| Chân 151 | I/O — User I/O pin |
| Chân 152 | I/O — User I/O pin |
| Chân 153 | I/O — User I/O pin |
| Chân 154 | I/O — User I/O pin |
| Chân 155 | I/O — User I/O pin |
| Chân 156 | I/O — User I/O pin |
| Chân 157 | I/O — User I/O pin |
| Chân 158 | CLR — Global Clear (active low) |
| Chân 159 | I/O — User I/O pin |
| Chân 160 | I/O — User I/O pin |
Ứng dụng tiêu biểu
EPM7256EQC160-12 phù hợp cho 6 Áp dụngs: 5V System Glue Logic, Microprocessor Address Decoding, Industrial Control State Machines, Telecom Backplane Bridging, Legacy PCI / ISA Bridge Logic, Test & Measurement Front-End Logic.
5V System Glue Logic
The EPM7256EQC160-12 is ideally suited for 5 V system glue-logic consolidation, replacing discrete 74LS/74HC TTL with a single programmable device. Its 12 ns tPD and 90.9 MHz fMAX comfortably handle 33-50 MHz bus cycles in legacy 5 V architectures such as VME, ISA, and PC/104, while the 132 I/O pins aggregate dozens of decode, latch, and mux functions onto one chip. The 256 macrocells accommodate complex address maps with multiple chip-select outputs and registered handshake logic, and the EEPROM non-volatile configuration eliminates external boot PROMs. Power dissipation stays in the 0.5-1.5 W typical range at 5 V, far below FPGAs of similar logic capacity.
Được đề xuất
Microprocessor Address Decoding
The 132-I/O EPM7256EQC160-12 consolidates full address decoding for embedded microprocessor systems, generating chip-select signals for memory and peripherals from a single device. With 16 LABs and 256 macrocells, designers can implement wide product-term decode trees for both memory and I/O maps simultaneously, plus wait-state generators and bus arbitration logic. The 12 ns propagation delay leaves comfortable margin for one-clock-state bus cycles at 33 MHz, and the JTAG in-system programmability enables last-minute board-revision fixes without swapping the part. Operating from a single 5 V rail, the part integrates cleanly with legacy 68k, x86, and PowerPC host designs.
Được đề xuất
Industrial Control State Machines
In industrial control PLC and motor-drive boards, the EPM7256EQC160-12 replaces banks of PAL/GAL devices with a single non-volatile state-machine engine. Its 256 macrocells implement complex multi-state sequencers for conveyor control, machine-tool interlocks, and process automation while the 132 I/O count interfaces directly to opto-isolated 24 V field I/O through 5 V level shifters. The MAX 7000 architecture's deterministic interconnect delay simplifies IEC 61131-3 timing analysis, and the commercial 0-70 °C range covers most factory-floor enclosures. JTAG re-programmability enables field firmware updates via boundary-scan without removing the part.
Được đề xuất
Telecom Backplane Bridging
Telecom infrastructure designs based on H.110 CT bus, MVIP, and SCSA used the EPM7256EQC160-12 to bridge time-division-multiplexed (TDM) streams between framer ICs, DSPs, and TDM switches. With 132 I/O pins and 12 ns tPD, the part handles 8 Mbps E1/T1 stream multiplexing, clock distribution, and frame-alignment logic without external glue. The 5 V supply matches legacy telecom line-card power rails, and the PQFP-160 footprint integrates into existing backplane daughter-card layouts. The non-volatile EEPROM configuration guarantees instant-on operation after power-cycle events that are routine in central-office equipment.
Được đề xuất
Legacy PCI / ISA Bridge Logic
The EPM7256EQC160-12 implements legacy PCI target devices, ISA bus arbiters, and PCI-to-ISA bridges in industrial single-board computers and instrumentation. With 256 macrocells, the part encodes full PCI configuration-space decoding plus ISA bus controllers and DMA handshake logic in one device. The 12 ns tPD meets PCI 33 MHz clock-to-output requirements with comfortable margin, and the 132 I/O count directly drives PCI bus signals plus peripheral chip-selects. JTAG boundary-scan compliance simplifies board-level interconnect testing per IEEE 1149.1.
Được đề xuất
Test & Measurement Front-End Logic
In oscilloscope, logic-analyzer, and bench-instrument front ends, the EPM7256EQC160-12 implements range-selection muxes, ADC timing generators, calibration state machines, and display-scan logic. The 132 I/O count connects directly to 8-16 channel analog muxes and LED/LCD driver arrays, while 256 macrocells encode the full measurement-cycle state machine with deterministic 12 ns step times. The EEPROM non-volatile configuration ensures instant boot into the calibration state, and the JTAG interface allows in-system firmware updates during factory calibration procedures. Single 5 V operation simplifies mixed-signal board power architecture.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPM7256EQC160-12 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EPM7256EQC160-15 | EPM7256EQC160-10 | EPM7256EQC160-12P | EPM7256EQC160-15N | EPM7256EGC192-12 |
|---|---|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | 160-pin PQFP (28x28 mm) | 160-pin PQFP (28x28 mm) - same | 160-pin PQFP (28x28 mm) - same | 160-pin PQFP (28x28 mm) - same | 160-pin PQFP (28x28 mm) - same | 192-pin PQFP - NOT pin-compatible with 160-pin PCB |
| Macrocells | 256 | 256 | 256 | 256 | 256 | 256 |
| User I/O | 132 | 132 | 132 | 132 | 132 | 164 (more I/O due to larger package) |
| Propagation Delay tPD (max) | 12 ns | 15 ns (slower) | 10 ns (faster) | 12 ns (identical) | 15 ns (slower) | 12 ns (identical) |
| Maximum Frequency | 90.9 MHz | ~76.9 MHz | ~100 MHz | 90.9 MHz | ~76.9 MHz | 90.9 MHz |
| Supply Voltage | 4.75-5.25 V (5 V) | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V |
| Operating Temperature | 0 °C to 70 °C (Commercial) | 0 °C to 70 °C | 0 °C to 70 °C | 0 °C to 70 °C | 0 °C to 70 °C | 0 °C to 70 °C |
| Programming Interface | JTAG (IEEE 1149.1 / 1532) | JTAG | JTAG | JTAG | JTAG | JTAG |
| Approx. Price @ 1000 pcs (USD) | $17.10 | ~$15-16 (slightly cheaper) | ~$20-22 (faster, premium) | ~$17-18 (Pb-free equivalent) | ~$15-16 (Pb-free, slower) | ~$19-22 (larger package) |
Bảo phân biệt quan trọng
- Best timing/cost balance in the 256-macrocell MAX 7000 family (vsEPM7256EQC160-10)
- Drop-in pin-compatible upgrade path within the same PQFP-160 footprint (vsEPM7256AQC208-7)
- Faster propagation delay available in the same footprint (vsEPM7256EQC160-15)
Ghi chú thiết kế
Estimated: At 5 V VCC, ICC quiescent is approximately 100-300 mA (depends on logic utilization and toggle rate). Bulk-decouple each VCC pin (33, 69, 97, 131) with a 0.1 µF ceramic placed within 5 mm of the pin, and add one bulk 10-47 µF tantalum or aluminum-polymer capacitor near the package. The MAX 7000 family does not require external configuration memory, but in-rush current during EEPROM programming can briefly exceed 200 mA per VCC pin - size your regulator accordingly.
The PQFP-160 package has 0.65 mm pitch gull-wing leads with a 28 × 28 mm body. Use a 4-layer PCB with one solid ground plane under the part and one 5 V power plane on an adjacent layer; route all 132 I/O signals on the outer layers with matched impedance for clock and JTAG signals. Leave at least 3 mm clearance around the package for inspection and rework. JTAG signals (TDI, TMS, TCK, TDO) must be length-matched within 25 mm to avoid boundary-scan shift-register glitches.
Do not confuse the EPM7256EQC160-12 (5 V commercial, PQFP-160) with the EPM7256AQC208-7 (also 5 V commercial but PQFP-208 with 7.5 ns tPD) - the pin counts and footprints differ. Do not assume any modern Quartus version supports MAX 7000 - use Quartus 13.0sp1 or MAX+PLUS II 10.2 as your design entry. If migrating legacy designs, verify the JTAG chain order against the BSDL file before production programming.
Thông tin tuân thủ
RoHS compliance depends on date code - check manufacturer marking for Pb-free suffix (P or N suffix). Not AEC-Q100 qualified; the commercial 0-70 °C grade is not intended for automotive.
