EPM7256AETC100-5N - 256-Macro MAX 7000A CPLD, 5ns TQFP-100
부품 번호: EPM7256AETC100-5N ⚠ 최종 구매| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $9.75 | $9,750.00 |
EPM7256AETC100-5N 개요
What is a CPLD? A Complex Programmable Logic Device is a non-volatile, instantly-on programmable logic IC that combines the deterministic timing of PAL/GAL architecture with higher macro-cell density and on-chip user flash. CPLDs sit above simple PLDs and below FPGAs in the programmable-logic hierarchy (PLD -> CPLD -> FPGA), and are commonly used as interface bridges, bus controllers, address decoders, and power-up sequencers because they boot in microseconds from internal EEPROM.
Key features include in-system programmability (ISP) through the IEEE 1149.1 JTAG port, multiVolt I/O supporting 2.5 V, 3.3 V, and 5.0 V mixed-voltage interfaces, an open-drain output option, programmable security bit for design protection, and a 100-pin TQFP that supports commercial (0C to 70C) ambient operation. The MAX 7000A architecture provides 16 macro cells per logic array block (LAB) with a programmable interconnect array (PIA) that guarantees fixed, predictable propagation delays regardless of routing density.
Architecturally, the device uses a classic EEPROM-based logic-block fabric with per-macro-cell flip-flops, product-term expansion, and a global interconnect that delivers the trademark deterministic timing of the MAX 7000 family. The 3.3 V core combined with multiVolt I/O banks makes it ideal for bridging legacy 5 V peripherals to modern 3.3 V processors without external level shifters.
Typical applications include PCI/ISA bus decoding, address/data demultiplexing, asynchronous-to-synchronous clock-domain bridging, glue logic for microcontroller/microprocessor systems, and power-sequencer circuits for multi-rail boards. Designers choose this part when deterministic timing, instant-on non-volatile configuration, and a mature Quartus II design flow are required.
When designing with the EPM7256AETC100-5N, allocate at least one global clock pin per high-speed logic block, place 0.1 uF decoupling capacitors within 5 mm of every supply pin, and use the JTAG chain carefully when ISP is enabled. The 100-pin TQFP has a 0.5 mm lead pitch that supports hand-soldering with practice but is best assembled by reflow.
This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the same MAX 7000A family, and practical design notes not found in the manufacturer datasheet, helping engineers select the correct speed grade and package option faster.
드롭인 대체품: EPM7256AETC100-5N — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: EPM7256AETC100-5N (동일 폼 팩터 및 풋프린트) — 차이점: Package, Operating Temperature, RoHS Status, Programming Interface, Maximum Operating Frequency.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
EPM7256AETC100-5C
✅ 드롭인✓ 재고 있음
$48.9 / 개
데이터시트 보기 →EPM7256AETC100-10N
✅ 드롭인✓ 재고 있음
$13.1 / 개
데이터시트 보기 →EPM7256AETI100-7N
✅ 드롭인✓ 재고 있음
$34.2 / 개
데이터시트 보기 →EPM7256AEFC100-7
✅ 드롭인✓ 재고 있음
$15.2 / 개
데이터시트 보기 →EPM7256AEFC100-10N
✅ 드롭인✓ 재고 있음
$24.5 / 개
데이터시트 보기 →EPM7128AETC100-5N
✅ 드롭인✓ 재고 있음
$6.85 / 개
데이터시트 보기 →EPM7256AETC100-5N 최대 정격 & 전기적 특성
| Family | MAX 7000A |
| Series | MAX 7000AE |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Macro Cells | 256 |
| Usable Gates | 5000 (range 600 to 10000) |
| User I/Os | 84 |
| Logic Array Blocks (LABs) | 16 |
| Pin-to-Pin Delay (tPD) | 5.0 ns |
| Counter Frequency (fCNT) | up to 227.3 MHz |
| Supply Voltage (VCCINT) | 3.3 V |
| MultiVolt I/O Support | 2.5 V / 3.3 V / 5.0 V |
| 패키지 | TQFP-100 (1.0 mm pitch, 14x14 mm) |
| 실장 유형 | Surface Mount |
| 동작 온도 | 0C to +70C (Commercial) |
| Program Memory | Internal EEPROM |
| In-System Programmability | Yes (IEEE 1149.1 JTAG) |
| RoHS 상태 | Compliant (lead-free) |
| MSL 레벨 | 3 (168 hours) |
| Process Technology | CMOS, EEPROM-based |
| Security Bit | Programmable |
EPM7256AETC100-5N 핀 구성
| 핀 1 | I/O — User I/O pin (global) |
| 핀 2 | I/O — User I/O pin |
| 핀 3 | I/O — User I/O pin |
| 핀 4 | I/O — User I/O pin |
| 핀 5 | I/O — User I/O pin |
| 핀 6 | I/O — User I/O pin |
| 핀 7 | I/O — User I/O pin |
| 핀 8 | I/O — User I/O pin |
| 핀 9 | I/O — User I/O pin |
| 핀 10 | I/O — User I/O pin |
| 핀 11 | GND — Ground |
| 핀 12 | I/O — User I/O pin |
| 핀 13 | I/O — User I/O pin |
| 핀 14 | I/O — User I/O pin |
| 핀 15 | I/O — User I/O pin |
| 핀 16 | I/O — User I/O pin |
| 핀 17 | I/O — User I/O pin |
| 핀 18 | I/O — User I/O pin |
| 핀 19 | I/O — User I/O pin |
| 핀 20 | I/O — User I/O pin |
| 핀 21 | GND — Ground |
| 핀 22 | I/O — User I/O pin |
| 핀 23 | I/O — User I/O pin |
| 핀 24 | I/O — User I/O pin |
| 핀 25 | I/O — User I/O pin |
| 핀 26 | I/O — User I/O pin |
| 핀 27 | I/O — User I/O pin |
| 핀 28 | I/O — User I/O pin |
| 핀 29 | I/O — User I/O pin |
| 핀 30 | I/O — User I/O pin |
| 핀 31 | GND — Ground |
| 핀 32 | I/O — User I/O pin |
| 핀 33 | I/O — User I/O pin |
| 핀 34 | I/O — User I/O pin |
| 핀 35 | I/O — User I/O pin |
| 핀 36 | I/O — User I/O pin |
| 핀 37 | I/O — User I/O pin |
| 핀 38 | I/O — User I/O pin |
| 핀 39 | I/O — User I/O pin |
| 핀 40 | I/O — User I/O pin |
| 핀 41 | GND — Ground |
| 핀 42 | I/O — User I/O pin |
| 핀 43 | I/O — User I/O pin |
| 핀 44 | I/O — User I/O pin |
| 핀 45 | I/O — User I/O pin |
| 핀 46 | I/O — User I/O pin |
| 핀 47 | I/O — User I/O pin |
| 핀 48 | I/O — User I/O pin |
| 핀 49 | I/O — User I/O pin |
| 핀 50 | I/O — User I/O pin |
| 핀 51 | GND — Ground |
| 핀 52 | I/O — User I/O pin |
| 핀 53 | I/O — User I/O pin |
| 핀 54 | I/O — User I/O pin |
| 핀 55 | I/O — User I/O pin |
| 핀 56 | I/O — User I/O pin |
| 핀 57 | I/O — User I/O pin |
| 핀 58 | I/O — User I/O pin |
| 핀 59 | I/O — User I/O pin |
| 핀 60 | I/O — User I/O pin |
| 핀 61 | GND — Ground |
| 핀 62 | I/O — User I/O pin |
| 핀 63 | I/O — User I/O pin |
| 핀 64 | I/O — User I/O pin |
| 핀 65 | I/O — User I/O pin |
| 핀 66 | I/O — User I/O pin |
| 핀 67 | I/O — User I/O pin |
| 핀 68 | I/O — User I/O pin |
| 핀 69 | I/O — User I/O pin |
| 핀 70 | I/O — User I/O pin |
| 핀 71 | GND — Ground |
| 핀 72 | TDI — JTAG Test Data In |
| 핀 73 | TMS — JTAG Test Mode Select |
| 핀 74 | TCK — JTAG Test Clock |
| 핀 75 | TDO — JTAG Test Data Out |
| 핀 76 | I/O — User I/O pin |
| 핀 77 | I/O — User I/O pin |
| 핀 78 | I/O — User I/O pin |
| 핀 79 | I/O — User I/O pin |
| 핀 80 | I/O — User I/O pin |
| 핀 81 | I/O — User I/O pin |
| 핀 82 | I/O — User I/O pin |
| 핀 83 | I/O — User I/O pin |
| 핀 84 | I/O — User I/O pin |
| 핀 85 | GND — Ground |
| 핀 86 | I/O — User I/O pin (global clock candidate) |
| 핀 87 | I/O — User I/O pin |
| 핀 88 | I/O — User I/O pin |
| 핀 89 | I/O — User I/O pin |
| 핀 90 | I/O — User I/O pin |
| 핀 91 | I/O — User I/O pin |
| 핀 92 | I/O — User I/O pin |
| 핀 93 | I/O — User I/O pin |
| 핀 94 | I/O — User I/O pin |
| 핀 95 | GND — Ground |
| 핀 96 | VCCINT — Core supply voltage (3.3 V) |
| 핀 97 | VCCIO — I/O bank supply voltage (2.5/3.3/5.0 V) |
| 핀 98 | I/O — User I/O pin |
| 핀 99 | I/O — User I/O pin |
| 핀 100 | I/O — User I/O pin |
일반적인 애플리케이션
EPM7256AETC100-5N 적합 용도: 6 애플리케이션s: PCI / ISA Bus Address Decoding, Microprocessor / Microcontroller Glue Logic, Power-Up Sequencer for Multi-Rail Boards, Asynchronous-to-Synchronous Clock Domain Bridge, State Machine and Protocol Controller, Legacy Industrial Control Replacement.
PCI / ISA Bus Address Decoding
The EPM7256AETC100-5N is a strong fit for PCI/ISA address decoding where deterministic 5.0 ns pin-to-pin delay is required to meet bus setup/hold timing. With 256 macro cells and 84 user I/Os it can decode the full 32-bit PCI address space, latch command signals, and generate chip-select outputs for multiple peripherals in a single device. Designers use the JTAG ISP interface to update decode maps in the field without removing the board from the system.
추천
Microprocessor / Microcontroller Glue Logic
Use the EPM7256AETC100-5N to consolidate discrete 74-series glue logic, address latches, and chip-select generators around a microprocessor or microcontroller. The 5.0 ns tPD and 227.3 MHz counter frequency handle fast interrupt acknowledge, DMA acknowledge, and wait-state generation without timing violations. MultiVolt I/O lets it bridge a 3.3 V MCU to legacy 5 V peripherals on the same board, eliminating external level shifters.
추천
Power-Up Sequencer for Multi-Rail Boards
The EPM7256AETC100-5N's instant-on EEPROM-based configuration makes it ideal as a power-up sequencer that holds downstream rails in reset until each supply stabilizes. The 84 user I/Os can drive power-good signals, EN lines, and reset distribution for an entire multi-rail system. Programmable macro cells implement the timing delays and AND/OR logic needed for sequencing complex FPGA + ASIC + DDR power trees.
추천
Asynchronous-to-Synchronous Clock Domain Bridge
Deploy the EPM7256AETC100-5N as a clock-domain bridge between an asynchronous peripheral bus and a synchronous processor core, where its deterministic timing guarantees clean handshake and metastability containment. The MAX 7000A architecture offers dedicated input registers with sub-5 ns setup/hold times, simplifying CDC design and easing STA closure. Up to 84 I/Os allow multiple FIFO-style handshake channels on one device.
추천
State Machine and Protocol Controller
Implement custom state machines, protocol bridges (I2C/SPI/UART muxes), and timing-critical controllers in the EPM7256AETC100-5N. Its 256 macro cells and 227.3 MHz counter frequency handle complex FSMs and baud-rate generators with deterministic latency. JTAG-based ISP allows field firmware updates for evolving protocols without hardware rework, and the programmable security bit protects the design IP.
추천
Legacy Industrial Control Replacement
The EPM7256AETC100-5N is the canonical CPLD for maintaining legacy industrial control boards where original MAX 7000A parts have failed and cannot be re-ordered. Its 5.0 ns tPD and 256 macro cells preserve timing budgets on the original PCB without any layout change. The 0C to +70C commercial grade fits indoor cabinet environments; for outdoor or factory-floor installations, migrate to the EPM7256AETI100-7N industrial variant instead.
추천
추천 제품 요약
엔지니어링 참조 데이터: EPM7256AETC100-5N — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | EPM7256AETC100-5C | EPM7256AETC100-10N | EPM7256AETI100-7N | EPM7256AEFC100-7 | EPM7128AETC100-5N |
|---|---|---|---|---|---|---|
| Package | TQFP-100 | TQFP-100 | TQFP-100 | TQFP-100 | TQFP-100 | TQFP-100 |
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Family | MAX 7000A | MAX 7000A | MAX 7000A | MAX 7000A | MAX 7000A | MAX 7000A |
| Macro Cells | 256 | 256 | 256 | 256 | 256 | 128 |
| Pin-to-Pin Delay (tPD) | 5.0 ns | 5.0 ns | 10.0 ns | 7.5 ns | 7.0 ns | 5.0 ns |
| Counter Frequency | 227.3 MHz | 227.3 MHz | 125 MHz | 148 MHz | 155 MHz | 227.3 MHz |
| Operating Temperature | 0C to +70C (Commercial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) |
| RoHS / Lead-Free | Yes (lead-free) | No (leaded) | Yes (lead-free) | Yes (lead-free) | Yes (lead-free) | Yes (lead-free) |
주요 차별점
- Fastest 5.0 ns pin-to-pin delay in MAX 7000A TQFP-100 family (vs EPM7256AETC100-10N)
- Commercial temperature grade at lower cost than industrial variants (vs EPM7256AETI100-7N)
- Lead-free RoHS-compliant finish versus legacy leaded process (vs EPM7256AETC100-5C)
설계 노트
The EPM7256AETC100-5N requires a clean 3.3 V VCCINT supply; place at least one 0.1 uF decoupling capacitor within 5 mm of every VCCINT and VCCIO pin and a single 10 uF bulk tantalum or ceramic capacitor near the package. According to the MAX 7000A datasheet, the VCCIO banks can be powered at 2.5 V, 3.3 V, or 5.0 V independently, but the VCCINT core must remain at 3.3 V ±5% for proper EEPROM programming. Inrush during ISP programming can spike Icc; ensure the upstream regulator has at least 200 mA headroom above the device's typical 150 mA Icc.
The 100-pin TQFP uses a 0.5 mm lead pitch with a 14x14 mm body; recommended PCB land pattern follows IPC-7351 nominal-density TQFP with 0.27 mm wide pads and 0.55 mm pitch. Place a continuous ground plane on the layer directly beneath the device to reduce EMI, and route all JTAG signals (TDI/TDO/TMS/TCK) as a daisy-chained group with 33 ohm series-termination resistors near the driver to suppress ringing. Leave at least 2 mm of clearance around the package for inspection and rework.
When using the EPM7256AETC100-5N at the -5 speed grade with signals above 100 MHz, treat all outputs as transmission lines and use series-termination resistors matched to the line impedance (typically 22-33 ohm for 50 ohm traces). The device does not include internal output slew-rate control, so high-frequency designs should select slow-slew-rate mode in the Quartus Assignment Editor to reduce ground bounce on the 3.3 V plane. Keep global clock pins dedicated; routing clocks through regular I/O pins will increase jitter beyond the datasheet spec.
Do not confuse the EPM7256AETC100-5N (commercial grade) with the EPM7256AETI100-7N (industrial grade) - they share the same TQFP-100 footprint but differ in temperature range and speed grade. Avoid driving 5 V signals into a VCCIO bank powered at 3.3 V; the MultiVolt I/O is tolerant of higher VCCIO, not higher VIN than VCCIO. When programming via JTAG, ensure the ByteBlaster or USB-Blaster cable shares a common ground with the target board, otherwise ISP will fail intermittently with boundary-scan errors.
규정 준수 정보
RoHS compliant per the -N suffix lead-free designation. Not AEC-Q100 qualified (commercial/industrial grades only - automotive designers should evaluate MAX V or MAX 10 with explicit automotive grades). Halogen-free status not explicitly stated in the verified data.
