EPM7256AETI144-7 - 256-Macro MAX 7000A CPLD, TQFP-144 | Intel
MPN: EPM7256AETI144-7 ✗ Cuối đờiEPM7256AETI144-7 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho EPM7256AETI144-7 — 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 EPM7256AETI144-7 (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Programming Interface, Configuration Memory, Usable Gates.
EPM7256AETI144-7N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7256AETC144-7N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7256AETI144-10N
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
EPM7256AETC144-10N
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM7256AETC144-10
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM7256AETC144-5N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7256AETI144-7 Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp | TQFP-144 (20x20 mm, 0.5 mm pitch) |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Configuration Memory | Non-volatile EEPROM (instant-on, no boot PROM) |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân EPM7256AETI144-7
| Chân 1 | I/O — User I/O pin |
| 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 | I/O — User I/O pin |
| 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 | GND — Ground |
| Chân 14 | I/O — User I/O pin |
| Chân 15 | I/O — User I/O pin |
| 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 | I/O — User I/O pin |
| Chân 26 | I/O — User I/O pin |
| Chân 27 | GND — Ground |
| Chân 28 | VCCINT — 3.3 V core supply |
| 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 | I/O — User I/O pin |
| 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 | GCLK1 — Global clock input 1 |
| Chân 39 | OE2/GCLK3 — Global OE or global clock 3 |
| Chân 40 | OE1 — Global output enable 1 |
| Chân 41 | I/O — User I/O pin |
| 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 | I/O — User I/O pin |
| Chân 52 | I/O — User I/O pin |
| Chân 53 | GND — Ground |
| Chân 54 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| 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 | I/O — User I/O pin |
| 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 | GCLK2 — Global clock input 2 |
| Chân 68 | OE4 — Global output enable 4 |
| Chân 69 | OE3 — Global output enable 3 |
| 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 | I/O — User I/O pin |
| 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 | GND — Ground |
| Chân 82 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| 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 | I/O — User I/O pin |
| 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 | I/O — User I/O pin |
| Chân 98 | TDI — JTAG Test Data In |
| Chân 99 | TMS — JTAG Test Mode Select |
| Chân 100 | TCK — JTAG Test Clock |
| Chân 101 | VCCINT — 3.3 V core supply |
| Chân 102 | GND — Ground |
| Chân 103 | TDO — JTAG Test Data Out |
| Chân 104 | I/O — User I/O pin |
| Chân 105 | I/O — User I/O pin |
| Chân 106 | I/O — User I/O pin |
| Chân 107 | GND — Ground |
| Chân 108 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| 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 | I/O — User I/O pin |
| 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 | I/O — User I/O pin |
| 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 | I/O — User I/O pin |
| Chân 132 | GND — Ground |
| Chân 133 | VCCIO — I/O supply (2.5 V/3.3 V/5 V) |
| 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 | I/O — User I/O pin |
| Chân 142 | I/O — User I/O pin |
| Chân 143 | I/O — User I/O pin |
| Chân 144 | I/O — User I/O pin |
Ứng dụng tiêu biểu
EPM7256AETI144-7 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPM7256AETI144-7 — 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 | 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 |
Bảo phân biệt quan trọng
- Same-footprint lead-free reflow-ready variant (vsEPM7256AETI144-7N)
- Faster 5 ns pin-to-pin delay (vsEPM7256AETC144-5N)
- Higher density alternative (vsEPM7256BTC100-7)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
