EPM7256AETI144-7 - 256-Macro MAX 7000A CPLD, TQFP-144 | Intel
Артикул: EPM7256AETI144-7 ✗ Снят с производства| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 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 Обзор
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.
Аналоги без доработки для EPM7256AETI144-7 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с EPM7256AETI144-7 (тот же форм-фактор и посадочное место) — отличается по Package, Operating Temperature, Programming Interface, Configuration Memory, Usable Gates.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
EPM7256AETI144-7N
✅ Прямая замена✓ В наличии
$29.81 / шт.
Открыть даташит →EPM7256AETC144-7N
✅ Прямая замена✓ В наличии
$29.75 / шт.
Открыть даташит →EPM7256AETI144-10N
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
EPM7256AETC144-10N
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$15.95 / шт.
Открыть даташит →EPM7256AETC144-10
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$31.4 / шт.
Открыть даташит →EPM7256AETC144-5N
✅ Прямая замена✓ В наличии
$9.95 / шт.
Открыть даташит →EPM7256AETI144-7 Максимальные параметры и электрические характеристики
| 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 |
| Корпус | TQFP-144 (20x20 mm, 0.5 mm pitch) |
| Рабочая температура | -40C to +85C (Industrial) |
| Configuration Memory | Non-volatile EEPROM (instant-on, no boot PROM) |
| Тип монтажа | Surface Mount |
Конфигурация выводов EPM7256AETI144-7
| Контакт 1 | I/O — User I/O pin |
| Контакт 2 | I/O — User I/O pin |
| Контакт 3 | I/O — User I/O pin |
| Контакт 4 | I/O — User I/O pin |
| Контакт 5 | I/O — User I/O pin |
| Контакт 6 | I/O — User I/O pin |
| Контакт 7 | I/O — User I/O pin |
| Контакт 8 | I/O — User I/O pin |
| Контакт 9 | I/O — User I/O pin |
| Контакт 10 | I/O — User I/O pin |
| Контакт 11 | I/O — User I/O pin |
| Контакт 12 | I/O — User I/O pin |
| Контакт 13 | GND — Ground |
| Контакт 14 | I/O — User I/O pin |
| Контакт 15 | I/O — User I/O pin |
| Контакт 16 | I/O — User I/O pin |
| Контакт 17 | I/O — User I/O pin |
| Контакт 18 | I/O — User I/O pin |
| Контакт 19 | I/O — User I/O pin |
| Контакт 20 | I/O — User I/O pin |
| Контакт 21 | I/O — User I/O pin |
| Контакт 22 | I/O — User I/O pin |
| Контакт 23 | I/O — User I/O pin |
| Контакт 24 | I/O — User I/O pin |
| Контакт 25 | I/O — User I/O pin |
| Контакт 26 | I/O — User I/O pin |
| Контакт 27 | GND — Ground |
| Контакт 28 | VCCINT — 3.3 V core supply |
| Контакт 29 | I/O — User I/O pin |
| Контакт 30 | I/O — User I/O pin |
| Контакт 31 | I/O — User I/O pin |
| Контакт 32 | I/O — User I/O pin |
| Контакт 33 | I/O — User I/O pin |
| Контакт 34 | I/O — User I/O pin |
| Контакт 35 | I/O — User I/O pin |
| Контакт 36 | I/O — User I/O pin |
| Контакт 37 | I/O — User I/O pin |
| Контакт 38 | GCLK1 — Global clock input 1 |
| Контакт 39 | OE2/GCLK3 — Global OE or global clock 3 |
| Контакт 40 | OE1 — Global output enable 1 |
| Контакт 41 | I/O — User I/O pin |
| Контакт 42 | I/O — User I/O pin |
| Контакт 43 | I/O — User I/O pin |
| Контакт 44 | I/O — User I/O pin |
| Контакт 45 | I/O — User I/O pin |
| Контакт 46 | I/O — User I/O pin |
| Контакт 47 | I/O — User I/O pin |
| Контакт 48 | I/O — User I/O pin |
| Контакт 49 | I/O — User I/O pin |
| Контакт 50 | I/O — User I/O pin |
| Контакт 51 | I/O — User I/O pin |
| Контакт 52 | I/O — User I/O pin |
| Контакт 53 | GND — Ground |
| Контакт 54 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| Контакт 55 | I/O — User I/O pin |
| Контакт 56 | I/O — User I/O pin |
| Контакт 57 | I/O — User I/O pin |
| Контакт 58 | I/O — User I/O pin |
| Контакт 59 | I/O — User I/O pin |
| Контакт 60 | I/O — User I/O pin |
| Контакт 61 | I/O — User I/O pin |
| Контакт 62 | I/O — User I/O pin |
| Контакт 63 | I/O — User I/O pin |
| Контакт 64 | I/O — User I/O pin |
| Контакт 65 | I/O — User I/O pin |
| Контакт 66 | I/O — User I/O pin |
| Контакт 67 | GCLK2 — Global clock input 2 |
| Контакт 68 | OE4 — Global output enable 4 |
| Контакт 69 | OE3 — Global output enable 3 |
| Контакт 70 | I/O — User I/O pin |
| Контакт 71 | I/O — User I/O pin |
| Контакт 72 | I/O — User I/O pin |
| Контакт 73 | I/O — User I/O pin |
| Контакт 74 | I/O — User I/O pin |
| Контакт 75 | I/O — User I/O pin |
| Контакт 76 | I/O — User I/O pin |
| Контакт 77 | I/O — User I/O pin |
| Контакт 78 | I/O — User I/O pin |
| Контакт 79 | I/O — User I/O pin |
| Контакт 80 | I/O — User I/O pin |
| Контакт 81 | GND — Ground |
| Контакт 82 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| Контакт 83 | I/O — User I/O pin |
| Контакт 84 | I/O — User I/O pin |
| Контакт 85 | I/O — User I/O pin |
| Контакт 86 | I/O — User I/O pin |
| Контакт 87 | I/O — User I/O pin |
| Контакт 88 | I/O — User I/O pin |
| Контакт 89 | I/O — User I/O pin |
| Контакт 90 | I/O — User I/O pin |
| Контакт 91 | I/O — User I/O pin |
| Контакт 92 | I/O — User I/O pin |
| Контакт 93 | I/O — User I/O pin |
| Контакт 94 | I/O — User I/O pin |
| Контакт 95 | I/O — User I/O pin |
| Контакт 96 | I/O — User I/O pin |
| Контакт 97 | I/O — User I/O pin |
| Контакт 98 | TDI — JTAG Test Data In |
| Контакт 99 | TMS — JTAG Test Mode Select |
| Контакт 100 | TCK — JTAG Test Clock |
| Контакт 101 | VCCINT — 3.3 V core supply |
| Контакт 102 | GND — Ground |
| Контакт 103 | TDO — JTAG Test Data Out |
| Контакт 104 | I/O — User I/O pin |
| Контакт 105 | I/O — User I/O pin |
| Контакт 106 | I/O — User I/O pin |
| Контакт 107 | GND — Ground |
| Контакт 108 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| Контакт 109 | I/O — User I/O pin |
| Контакт 110 | I/O — User I/O pin |
| Контакт 111 | I/O — User I/O pin |
| Контакт 112 | I/O — User I/O pin |
| Контакт 113 | I/O — User I/O pin |
| Контакт 114 | I/O — User I/O pin |
| Контакт 115 | I/O — User I/O pin |
| Контакт 116 | I/O — User I/O pin |
| Контакт 117 | I/O — User I/O pin |
| Контакт 118 | I/O — User I/O pin |
| Контакт 119 | I/O — User I/O pin |
| Контакт 120 | I/O — User I/O pin |
| Контакт 121 | I/O — User I/O pin |
| Контакт 122 | I/O — User I/O pin |
| Контакт 123 | I/O — User I/O pin |
| Контакт 124 | I/O — User I/O pin |
| Контакт 125 | I/O — User I/O pin |
| Контакт 126 | I/O — User I/O pin |
| Контакт 127 | I/O — User I/O pin |
| Контакт 128 | I/O — User I/O pin |
| Контакт 129 | I/O — User I/O pin |
| Контакт 130 | I/O — User I/O pin |
| Контакт 131 | I/O — User I/O pin |
| Контакт 132 | GND — Ground |
| Контакт 133 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| Контакт 134 | I/O — User I/O pin |
| Контакт 135 | I/O — User I/O pin |
| Контакт 136 | I/O — User I/O pin |
| Контакт 137 | I/O — User I/O pin |
| Контакт 138 | I/O — User I/O pin |
| Контакт 139 | I/O — User I/O pin |
| Контакт 140 | I/O — User I/O pin |
| Контакт 141 | I/O — User I/O pin |
| Контакт 142 | I/O — User I/O pin |
| Контакт 143 | I/O — User I/O pin |
| Контакт 144 | I/O — User I/O pin |
Типичное применение
EPM7256AETI144-7 подходит для 6 применениеs: 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.
Рекомендуется
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.
Рекомендуется
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.
Рекомендуется
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.
Рекомендуется
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.
Рекомендуется
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.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для EPM7256AETI144-7 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | 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 |
Ключевые отличия
- Same-footprint lead-free reflow-ready variant (против EPM7256AETI144-7N)
- Faster 5 ns pin-to-pin delay (против EPM7256AETC144-5N)
- Higher density alternative (против EPM7256BTC100-7)
Заметки по проектированию
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.
Информация о соответствии
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.
