EPM7256AETI144-7 - 256-Macro MAX 7000A CPLD, TQFP-144 | Intel
部品番号: EPM7256AETI144-7 ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $88.44 | $88.44 |
| 10 | $79.6 | $796.00 |
| 100 | $70.92 | $7,092.00 |
| 500 | $62.23 | $31,115.00 |
| 1,000 | $53.55 | $53,550.00 |
EPM7256AETI144-7 概要
A CPLD (Complex Programmable Logic Device) is a non-volatile, electrically erasable programmable logic device that combines multiple PAL/GAL-style macrocell arrays on a single chip with a global interconnect fabric. In the broader component hierarchy, a CPLD sits beside the FPGA (Field-Programmable Gate Array) as a non-volatile, instant-on alternative that is well suited to glue-logic, bus-interface, state-machine and power-up control tasks where deterministic timing and zero-config boot are required.
Key features include 7 ns tPD combinational delay, 126.6 MHz maximum operating frequency, IEEE 1149.1 (JTAG) boundary-scan support, MultiVolt I/O allowing 2.5 V/3.3 V/5 V interfacing, and dedicated input clocks plus a global OE (output enable). The device is fabricated on a 5 V-tolerant, EEPROM-based architecture that retains its configuration without external memory, eliminating the boot PROM typically required by SRAM-based FPGAs.
Technical depth: each macrocell contains a programmable AND/OR array with a product-term allocator feeding a configurable flip-flop; the 36 I/Os are organized as 4 I/O banks driven by fast input and output registers. With 16 macrocells per Logic Array Block (LAB) and a clear predictable timing model, Quartus / MAX+PLUS II can place-and-route designs with deterministic worst-case fMAX - a property that makes MAX 7000A attractive for protocol bridges and industrial control.
Typical applications include industrial control, bus-interface glue logic, motor control state machines, and legacy peripheral bridging on 3.3 V mixed-voltage boards. The instant-on non-volatile configuration is also well suited to safety-critical and brown-out-tolerant systems. Designers should note that -7 (7 ns) speed grade implies tighter tCO budgets, and JTAG programming reduces fixture complexity in production. This page synthesizes distributor pricing, MAX 7000A drop-in alternatives, and practical design notes not found in a single Altera datasheet.
ドロップイン代替品: EPM7256AETI144-7 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: EPM7256AETI144-7 （同一形状・フットプリント） — 相違点: Package, Operating Temperature, Programming Interface, Configuration Memory, Usable Gates.
クイック比較ツール — 並列比較する代替部品を選択:
EPM7256AETI144-7N
✅ ドロップイン✓ 在庫あり
$29.81 / 個
データシートを見る →EPM7256AETC144-7N
✅ ドロップイン✓ 在庫あり
$29.75 / 個
データシートを見る →EPM7256AETI144-10N
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
EPM7256AETC144-10N
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$15.95 / 個
データシートを見る →EPM7256AETC144-10
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$31.4 / 個
データシートを見る →EPM7256AETC144-5N
✅ ドロップイン✓ 在庫あり
$9.95 / 個
データシートを見る →EPM7256AETI144-7 最大定格＆電気的特性
| Family | MAX 7000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Macrocells | 256 |
| Usable Gates | 5,000 |
| User I/Os | 36 |
| Logic Array Blocks (LABs) | 16 |
| Pin-to-Pin Delay (tPD) | 7 ns |
| Maximum Frequency (fMAX) | 126.6 MHz |
| Supply Voltage (Core) | 3.3 V |
| I/O Standard Support | MultiVolt (2.5 V / 3.3 V / 5 V) |
| Programming Interface | IEEE 1149.1 (JTAG) / ByteBlaster |
| パッケージ | TQFP-144 (20x20 mm, 0.5 mm pitch) |
| 動作温度 | -40C to +85C (Industrial) |
| Configuration Memory | Non-volatile EEPROM (instant-on, no boot PROM) |
| 実装タイプ | Surface Mount |
EPM7256AETI144-7 ピン構成
| ピン 1 | I/O — User I/O pin |
| ピン 2 | I/O — User I/O pin |
| ピン 3 | I/O — User I/O pin |
| ピン 4 | I/O — User I/O pin |
| ピン 5 | I/O — User I/O pin |
| ピン 6 | I/O — User I/O pin |
| ピン 7 | I/O — User I/O pin |
| ピン 8 | I/O — User I/O pin |
| ピン 9 | I/O — User I/O pin |
| ピン 10 | I/O — User I/O pin |
| ピン 11 | I/O — User I/O pin |
| ピン 12 | I/O — User I/O pin |
| ピン 13 | GND — Ground |
| ピン 14 | I/O — User I/O pin |
| ピン 15 | I/O — User I/O pin |
| ピン 16 | I/O — User I/O pin |
| ピン 17 | I/O — User I/O pin |
| ピン 18 | I/O — User I/O pin |
| ピン 19 | I/O — User I/O pin |
| ピン 20 | I/O — User I/O pin |
| ピン 21 | I/O — User I/O pin |
| ピン 22 | I/O — User I/O pin |
| ピン 23 | I/O — User I/O pin |
| ピン 24 | I/O — User I/O pin |
| ピン 25 | I/O — User I/O pin |
| ピン 26 | I/O — User I/O pin |
| ピン 27 | GND — Ground |
| ピン 28 | VCCINT — 3.3 V core supply |
| ピン 29 | I/O — User I/O pin |
| ピン 30 | I/O — User I/O pin |
| ピン 31 | I/O — User I/O pin |
| ピン 32 | I/O — User I/O pin |
| ピン 33 | I/O — User I/O pin |
| ピン 34 | I/O — User I/O pin |
| ピン 35 | I/O — User I/O pin |
| ピン 36 | I/O — User I/O pin |
| ピン 37 | I/O — User I/O pin |
| ピン 38 | GCLK1 — Global clock input 1 |
| ピン 39 | OE2/GCLK3 — Global OE or global clock 3 |
| ピン 40 | OE1 — Global output enable 1 |
| ピン 41 | I/O — User I/O pin |
| ピン 42 | I/O — User I/O pin |
| ピン 43 | I/O — User I/O pin |
| ピン 44 | I/O — User I/O pin |
| ピン 45 | I/O — User I/O pin |
| ピン 46 | I/O — User I/O pin |
| ピン 47 | I/O — User I/O pin |
| ピン 48 | I/O — User I/O pin |
| ピン 49 | I/O — User I/O pin |
| ピン 50 | I/O — User I/O pin |
| ピン 51 | I/O — User I/O pin |
| ピン 52 | I/O — User I/O pin |
| ピン 53 | GND — Ground |
| ピン 54 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| ピン 55 | I/O — User I/O pin |
| ピン 56 | I/O — User I/O pin |
| ピン 57 | I/O — User I/O pin |
| ピン 58 | I/O — User I/O pin |
| ピン 59 | I/O — User I/O pin |
| ピン 60 | I/O — User I/O pin |
| ピン 61 | I/O — User I/O pin |
| ピン 62 | I/O — User I/O pin |
| ピン 63 | I/O — User I/O pin |
| ピン 64 | I/O — User I/O pin |
| ピン 65 | I/O — User I/O pin |
| ピン 66 | I/O — User I/O pin |
| ピン 67 | GCLK2 — Global clock input 2 |
| ピン 68 | OE4 — Global output enable 4 |
| ピン 69 | OE3 — Global output enable 3 |
| ピン 70 | I/O — User I/O pin |
| ピン 71 | I/O — User I/O pin |
| ピン 72 | I/O — User I/O pin |
| ピン 73 | I/O — User I/O pin |
| ピン 74 | I/O — User I/O pin |
| ピン 75 | I/O — User I/O pin |
| ピン 76 | I/O — User I/O pin |
| ピン 77 | I/O — User I/O pin |
| ピン 78 | I/O — User I/O pin |
| ピン 79 | I/O — User I/O pin |
| ピン 80 | I/O — User I/O pin |
| ピン 81 | GND — Ground |
| ピン 82 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| ピン 83 | I/O — User I/O pin |
| ピン 84 | I/O — User I/O pin |
| ピン 85 | I/O — User I/O pin |
| ピン 86 | I/O — User I/O pin |
| ピン 87 | I/O — User I/O pin |
| ピン 88 | I/O — User I/O pin |
| ピン 89 | I/O — User I/O pin |
| ピン 90 | I/O — User I/O pin |
| ピン 91 | I/O — User I/O pin |
| ピン 92 | I/O — User I/O pin |
| ピン 93 | I/O — User I/O pin |
| ピン 94 | I/O — User I/O pin |
| ピン 95 | I/O — User I/O pin |
| ピン 96 | I/O — User I/O pin |
| ピン 97 | I/O — User I/O pin |
| ピン 98 | TDI — JTAG Test Data In |
| ピン 99 | TMS — JTAG Test Mode Select |
| ピン 100 | TCK — JTAG Test Clock |
| ピン 101 | VCCINT — 3.3 V core supply |
| ピン 102 | GND — Ground |
| ピン 103 | TDO — JTAG Test Data Out |
| ピン 104 | I/O — User I/O pin |
| ピン 105 | I/O — User I/O pin |
| ピン 106 | I/O — User I/O pin |
| ピン 107 | GND — Ground |
| ピン 108 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| ピン 109 | I/O — User I/O pin |
| ピン 110 | I/O — User I/O pin |
| ピン 111 | I/O — User I/O pin |
| ピン 112 | I/O — User I/O pin |
| ピン 113 | I/O — User I/O pin |
| ピン 114 | I/O — User I/O pin |
| ピン 115 | I/O — User I/O pin |
| ピン 116 | I/O — User I/O pin |
| ピン 117 | I/O — User I/O pin |
| ピン 118 | I/O — User I/O pin |
| ピン 119 | I/O — User I/O pin |
| ピン 120 | I/O — User I/O pin |
| ピン 121 | I/O — User I/O pin |
| ピン 122 | I/O — User I/O pin |
| ピン 123 | I/O — User I/O pin |
| ピン 124 | I/O — User I/O pin |
| ピン 125 | I/O — User I/O pin |
| ピン 126 | I/O — User I/O pin |
| ピン 127 | I/O — User I/O pin |
| ピン 128 | I/O — User I/O pin |
| ピン 129 | I/O — User I/O pin |
| ピン 130 | I/O — User I/O pin |
| ピン 131 | I/O — User I/O pin |
| ピン 132 | GND — Ground |
| ピン 133 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| ピン 134 | I/O — User I/O pin |
| ピン 135 | I/O — User I/O pin |
| ピン 136 | I/O — User I/O pin |
| ピン 137 | I/O — User I/O pin |
| ピン 138 | I/O — User I/O pin |
| ピン 139 | I/O — User I/O pin |
| ピン 140 | I/O — User I/O pin |
| ピン 141 | I/O — User I/O pin |
| ピン 142 | I/O — User I/O pin |
| ピン 143 | I/O — User I/O pin |
| ピン 144 | I/O — User I/O pin |
主な用途
EPM7256AETI144-7 の用途: 6 件s: Industrial Control Glue Logic, Bus Interface Bridging, Motor Control State Machines, Legacy Peripheral Bridging, Power-Up Sequencing and Supervisor Logic, Brown-Out-Tolerant Embedded Controllers.
Industrial Control Glue Logic
The EPM7256AETI144-7 fits industrial control glue logic because of its non-volatile instant-on configuration, industrial -40C to +85C temperature grade and deterministic 7 ns pin-to-pin delay. With 256 macrocells and 36 user I/Os it can replace 4-6 discrete 22V10/ GAL devices on a PLC backplane, replacing address decoding, interrupt steering, watchdog timing and bus arbitration in one chip. Unlike SRAM-based FPGAs it requires no boot PROM and therefore survives brown-outs and cold starts without reconfiguration - a critical requirement on factory floors with unstable 24 V supplies.
おすすめ
Bus Interface Bridging
The EPM7256AETI144-7 is well suited to bus-bridge applications such as ISA-to-PCI, parallel-to-LVDS or 8-bit microcontroller to 16-bit/32-bit peripheral translation. Its MultiVolt I/O allows the CPLD to interface 5 V peripherals and 3.3 V processors on the same board without external level shifters, and the 256 macrocells provide enough logic for handshaking, byte-swapping and wait-state insertion. The 7 ns tPD supports synchronous bus cycles up to 126.6 MHz, while JTAG programming lets manufacturers re-spin bus widths in production without reworking the PCB.
おすすめ
Motor Control State Machines
The EPM7256AETI144-7 is a strong fit for motor-drive state machines because its deterministic 7 ns combinational delay and 126.6 MHz fMAX give predictable PWM generation, commutation timing and fault-interval response. Industrial temperature grade lets it sit next to IGBT gate drivers on the same PCB, and 36 user I/Os are enough to handle Hall-sensor inputs, encoder feedback and six PWM channels for a 3-phase inverter. Non-volatile EEPROM configuration means the controller powers up in a known safe state, preventing shoot-through on cold start.
おすすめ
Legacy Peripheral Bridging
Legacy peripherals such as 5 V SRAM, 8-bit parallel ADCs and ISA-bus cards can be bridged to modern 3.3 V MCUs using the EPM7256AETI144-7 with its MultiVolt I/O. The 5 V-tolerant I/O banks connect directly to legacy 5 V devices while the 3.3 V core and 3.3 V I/O connect to the host processor, eliminating discrete level shifters. 256 macrocells accommodate address-latch, chip-select decoder, bus-direction control and timing-glue logic in a single chip, and JTAG boundary-scan (IEEE 1149.1) aids in-circuit test of the bridge.
おすすめ
Power-Up Sequencing and Supervisor Logic
The EPM7256AETI144-7 excels at power-sequencing tasks because its EEPROM-based non-volatile configuration is available the instant VCCINT crosses its threshold - no boot PROM, no configuration delay. A 3-rail board can use a single CPLD to enforce power-up order (core before I/O before analog), monitor PG (power-good) inputs, and assert RESET to downstream processors with millisecond timing. Industrial temp grade and 5 V-tolerant I/O let it monitor 24 V industrial rails, and JTAG allows late-stage firmware adjustments without board rework.
おすすめ
Brown-Out-Tolerant Embedded Controllers
The EPM7256AETI144-7 is a strong fit for brown-out-tolerant embedded controllers because its non-volatile EEPROM configuration retains the logic design across full power loss - no reconfiguration, no boot wait, no spurious outputs on cold start. Combined with its 3.3 V core and 5 V-tolerant I/O, the part can ride through noisy 24 V industrial supplies while keeping deterministic timing for protective interlocks. The 256-macrocell capacity is sufficient for state machines, watchdog timers, fault logging and isolated communication bridges used in remote or battery-backed equipment.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: EPM7256AETI144-7 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | EPM7256AETI144-7N | EPM7256AETC144-7N | EPM7256AETI144-10N | EPM7256AETC144-10N | EPM7256AETC144-5N |
|---|---|---|---|---|---|---|
| Package | TQFP-144 (0.5 mm pitch, 20x20 mm) | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same |
| Brand | Intel (formerly Altera) | Intel - same | Intel - same | Intel - same | Intel - same | Intel - same |
| Macrocells | 256 | 256 | 256 | 256 | 256 | 256 |
| Pin-to-Pin Delay (tPD) | 7 ns | 7 ns | 7 ns | 10 ns | 10 ns | 5 ns |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) |
| Lead-Free / RoHS | SnPb (non-RoHS) | Yes (RoHS) | Yes (RoHS) | Yes (RoHS) | Yes (RoHS) | Yes (RoHS) |
| User I/Os | 36 | 36 | 36 | 36 | 36 | 36 |
| Core Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
主な差別化要因
- Same-footprint lead-free reflow-ready variant （vs EPM7256AETI144-7N)
- Faster 5 ns pin-to-pin delay （vs EPM7256AETC144-5N)
- Higher density alternative （vs EPM7256BTC100-7)
設計ノート
The EPM7256AETI144-7 requires a 3.3 V +/- 5% supply on VCCINT (pins 28 and 101) plus a separately decoupled VCCIO rail that can be 2.5 V, 3.3 V or 5 V depending on the logic family being interfaced. Place a 0.1 uF decoupling capacitor within 5 mm of every VCCINT and VCCIO pin, and a bulk 10 uF tantalum near the package to handle inrush during in-system programming (ISP). Power-up ramp should be monotonic between 0 V and 3.3 V in at least 1 ms for reliable configuration. Estimated Icc at 3.3 V is 30-60 mA in static operation and can rise to ~200 mA during simultaneous switching of all 36 I/Os.
The TQFP-144 package has a 0.5 mm pin pitch and requires fine-pitch PCB design rules: 0.15 mm trace width, 0.15 mm trace spacing and 0.4 mm via diameter. Tie all GND pins (13, 27, 53, 81, 102, 107, 132) to a solid ground plane on the top layer to provide low-impedance return paths for the 36 I/Os. Use 5 mil solder paste on land pads to avoid bridging, and reflow within the JEDEC J-STD-020 profile matching the part finish (SnPb for -7, lead-free for -7N).
Avoid these EPM7256AETI144-7 pitfalls: (1) Do not mix 5 V and 3.3 V on the same VCCIO bank - all I/Os in a bank share one VCCIO and cannot tolerate mixed voltages. (2) Do not apply input signals until VCCINT reaches 3.0 V or 5 V-tolerant I/Os can latch up. (3) JTAG chain length should not exceed 8 devices or the TCK rise time will degrade below 10 ns - insert a JTAG buffer for longer chains. (4) Unused I/O pins must be set to 'output enable off' in the Quartus / MAX+PLUS II pin assignments, otherwise they float and consume power. (5) Do not hot-plug the device when VCCIO is unpowered - the I/Os must be powered before signals are applied.
コンプライアンス情報
RoHS: non_compliant per part suffix -7 (SnPb finish). Choose -7N for lead-free RoHS reflow compliance. REACH compliant per Altera/Intel product declaration. AEC-Q100 not applicable - this is a commercial/industrial CPLD, not automotive-qualified.
