EPM3256ATI144-10 - MAX 3000A 256-Macrocell 10ns CPLD | Intel
MPN: EPM3256ATI144-10 ✗ Cuối đờiEPM3256ATI144-10 Tóm tắt
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between small discrete logic gates (74-series) and large FPGAs in the programmable logic hierarchy. It provides predictable timing, instant-on operation from on-chip EEPROM, and is well suited to glue logic, bus interface, and state-machine functions. The MAX 3000A family uses a classic MAX architecture with 16 Logic Array Blocks (LABs), each containing 16 macrocells interconnected by a programmable interconnect array (PIA).
Key features include 3.3V in-system programmability (ISP) compliant with IEEE Std. 1532, MultiVolt I/O supporting 1.8V/2.5V/3.3V/5.0V mixed-voltage interfacing, 5,000 typical usable gates, 116 user I/O pins, and a maximum toggle frequency of 95.2 MHz. The device operates from a single 3.0V to 3.6V supply with industrial temperature range of -40°C to +85°C. PCI-compatible I/O drive and programmable slew-rate control make it suitable for board-level bus applications.
The EPM3256ATI144-10 leverages EEPROM-based configuration cells for instant-on behavior with no external boot memory required, predictable deterministic routing delays that simplify static timing analysis, and JTAG-based IEEE 1149.1 boundary-scan support for board testability. Designers can target the part with the legacy Altera MAX+PLUS II or the modern Quartus II toolchain.
Typical applications include bus-interface bridges, address decoding and glue logic for legacy microcontrollers, peripheral controllers (UART, SPI, I2C bridges), industrial control boards, and PCI add-in card glue logic. Its instant-on, deterministic timing, and 116 I/O make it a versatile choice for medium-complexity logic consolidation.
When designing with this device, ensure JTAG chain integrity (TDI/TDO/TMS/TCK pull-ups per IEEE 1149.1), respect the 3.3V VCCINT tolerance, and use Quartus II 13.0 SP1 or MAX+PLUS II for legacy design flows. Note that new designs should generally migrate to MAX II or MAX V families.
This page synthesizes distributor availability, drop-in same-family alternatives, and practical design notes not consolidated on a single manufacturer page.
Bộ thay thế dễ dàng lắp đặt cho EPM3256ATI144-10 — 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 EPM3256ATI144-10 (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Package, Propagation Delay (tPD), RoHS Status, JTAG Support.
EPM3256ATC144-10N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM3256ATC144-10AA
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM3256ATC144-10
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM3256ATC144-7N
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM3256ATC144-7
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM3128ATI144-10N
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM3256ATI144-10 Tỷ lệ tối đa & tính chất điện
| Series | MAX 3000A |
| Programmable Type | In-System Programmable (ISP), EEPROM-based |
| Number of Macrocells | 256 |
| Number of Logic Elements / Blocks | 16 LABs (Logic Array Blocks) |
| Number of Gates | 5,000 typical usable gates |
| Number of User I/O | 116 |
| Propagation Delay (tpd max) | 10 ns |
| Maximum Frequency (fmax) | 95.2 MHz |
| Supply Voltage (VCCINT) | 3.0 V to 3.6 V (3.3 V nominal) |
| I/O Voltage Support | MultiVolt: 1.8 V / 2.5 V / 3.3 V / 5.0 V mixed |
| Logic Family | CMOS, EEPROM-based |
| Nhiệt độ hoạt động | -40°C to +85°C (industrial) |
| Hộp | 144-pin TQFP (20x20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Programming Interface | JTAG (IEEE 1149.1) and IEEE Std. 1532 ISP |
| Compliance | IEEE Std. 1532 ISP, PCI-compatible I/O |
| Trạng thái vòng đời | Obsolete (per HighqualityPCB listing) |
Cấu hình chân EPM3256ATI144-10
| Chân 1 | I/O — User I/O pin (Bank 1) |
| Chân 2 | I/O — User I/O pin (Bank 1) |
| Chân 3 | I/O — User I/O pin (Bank 1) |
| Chân 4 | I/O — User I/O pin (Bank 1) |
| Chân 5 | I/O — User I/O pin (Bank 1) |
| Chân 6 | I/O — User I/O pin (Bank 1) |
| Chân 7 | I/O — User I/O pin (Bank 1) |
| Chân 8 | I/O — User I/O pin (Bank 1) |
| Chân 9 | I/O — User I/O pin (Bank 1) |
| Chân 10 | I/O — User I/O pin (Bank 1) |
| Chân 11 | I/O — User I/O pin (Bank 1) |
| Chân 12 | I/O — User I/O pin (Bank 1) |
| Chân 13 | I/O — User I/O pin (Bank 2) |
| Chân 14 | I/O — User I/O pin (Bank 2) |
| Chân 15 | I/O — User I/O pin (Bank 2) |
| Chân 16 | I/O — User I/O pin (Bank 2) |
| Chân 17 | I/O — User I/O pin (Bank 2) |
| Chân 18 | I/O — User I/O pin (Bank 2) |
| Chân 19 | I/O — User I/O pin (Bank 2) |
| Chân 20 | I/O — User I/O pin (Bank 2) |
| Chân 21 | GND — Ground |
| Chân 22 | I/O — User I/O pin (Bank 2) |
| Chân 23 | I/O — User I/O pin (Bank 2) |
| Chân 24 | I/O — User I/O pin (Bank 2) |
| Chân 25 | I/O — User I/O pin (Bank 2) |
| Chân 26 | I/O — User I/O pin (Bank 2) |
| Chân 27 | I/O — User I/O pin (Bank 2) |
| Chân 28 | I/O — User I/O pin (Bank 2) |
| Chân 29 | I/O — User I/O pin (Bank 2) |
| Chân 30 | I/O — User I/O pin (Bank 2) |
| Chân 31 | GND — Ground |
| Chân 32 | I/O — User I/O pin (Bank 2) |
| Chân 33 | I/O — User I/O pin (Bank 3) |
| Chân 34 | I/O — User I/O pin (Bank 3) |
| Chân 35 | I/O — User I/O pin (Bank 3) |
| Chân 36 | I/O — User I/O pin (Bank 3) |
| Chân 37 | I/O — User I/O pin (Bank 3) |
| Chân 38 | I/O — User I/O pin (Bank 3) |
| Chân 39 | I/O — User I/O pin (Bank 3) |
| Chân 40 | I/O — User I/O pin (Bank 3) |
| Chân 41 | I/O — User I/O pin (Bank 3) |
| Chân 42 | I/O — User I/O pin (Bank 3) |
| Chân 43 | GND — Ground |
| Chân 44 | I/O — User I/O pin (Bank 3) |
| Chân 45 | I/O — User I/O pin (Bank 3) |
| Chân 46 | I/O — User I/O pin (Bank 3) |
| Chân 47 | I/O — User I/O pin (Bank 3) |
| Chân 48 | I/O — User I/O pin (Bank 3) |
| Chân 49 | I/O — User I/O pin (Bank 3) |
| Chân 50 | I/O — User I/O pin (Bank 3) |
| Chân 51 | I/O — User I/O pin (Bank 3) |
| Chân 52 | I/O — User I/O pin (Bank 3) |
| Chân 53 | I/O — User I/O pin (Bank 3) |
| Chân 54 | I/O — User I/O pin (Bank 3) |
| Chân 55 | I/O — User I/O pin (Bank 4) |
| Chân 56 | I/O — User I/O pin (Bank 4) |
| Chân 57 | I/O — User I/O pin (Bank 4) |
| Chân 58 | I/O — User I/O pin (Bank 4) |
| Chân 59 | I/O — User I/O pin (Bank 4) |
| Chân 60 | I/O — User I/O pin (Bank 4) |
| Chân 61 | GND — Ground |
| Chân 62 | I/O — User I/O pin (Bank 4) |
| Chân 63 | I/O — User I/O pin (Bank 4) |
| Chân 64 | I/O — User I/O pin (Bank 4) |
| Chân 65 | I/O — User I/O pin (Bank 4) |
| Chân 66 | I/O — User I/O pin (Bank 4) |
| Chân 67 | I/O — User I/O pin (Bank 4) |
| Chân 68 | I/O — User I/O pin (Bank 4) |
| Chân 69 | I/O — User I/O pin (Bank 4) |
| Chân 70 | I/O — User I/O pin (Bank 4) |
| Chân 71 | I/O — User I/O pin (Bank 4) |
| Chân 72 | I/O — User I/O pin (Bank 4) |
| Chân 73 | TDI — JTAG Test Data In (IEEE 1149.1) |
| Chân 74 | TMS — JTAG Test Mode Select |
| Chân 75 | TCK — JTAG Test Clock |
| Chân 76 | GND — Ground |
| Chân 77 | VCCINT — Core supply 3.3 V (3.0-3.6 V) |
| Chân 78 | I/O — User I/O pin (Bank 4) |
| Chân 79 | I/O — User I/O pin (Bank 4) |
| Chân 80 | I/O — User I/O pin (Bank 4) |
| Chân 81 | I/O — User I/O pin (Bank 4) |
| Chân 82 | I/O — User I/O pin (Bank 1) |
| Chân 83 | I/O — User I/O pin (Bank 1) |
| Chân 84 | I/O — User I/O pin (Bank 1) |
| Chân 85 | I/O — User I/O pin (Bank 1) |
| Chân 86 | I/O — User I/O pin (Bank 1) |
| Chân 87 | I/O — User I/O pin (Bank 1) |
| Chân 88 | I/O — User I/O pin (Bank 1) |
| Chân 89 | I/O — User I/O pin (Bank 1) |
| Chân 90 | I/O — User I/O pin (Bank 1) |
| Chân 91 | GND — Ground |
| Chân 92 | I/O — User I/O pin (Bank 1) |
| Chân 93 | I/O — User I/O pin (Bank 1) |
| Chân 94 | I/O — User I/O pin (Bank 1) |
| Chân 95 | I/O — User I/O pin (Bank 1) |
| Chân 96 | I/O — User I/O pin (Bank 1) |
| Chân 97 | I/O — User I/O pin (Bank 1) |
| Chân 98 | I/O — User I/O pin (Bank 1) |
| Chân 99 | I/O — User I/O pin (Bank 1) |
| Chân 100 | I/O — User I/O pin (Bank 1) |
| Chân 101 | I/O — User I/O pin (Bank 1) |
| Chân 102 | I/O — User I/O pin (Bank 2) |
| Chân 103 | I/O — User I/O pin (Bank 2) |
| Chân 104 | I/O — User I/O pin (Bank 2) |
| Chân 105 | I/O — User I/O pin (Bank 2) |
| Chân 106 | I/O — User I/O pin (Bank 2) |
| Chân 107 | GND — Ground |
| Chân 108 | I/O — User I/O pin (Bank 2) |
| Chân 109 | I/O — User I/O pin (Bank 2) |
| Chân 110 | I/O — User I/O pin (Bank 2) |
| Chân 111 | I/O — User I/O pin (Bank 2) |
| Chân 112 | I/O — User I/O pin (Bank 2) |
| Chân 113 | I/O — User I/O pin (Bank 2) |
| Chân 114 | I/O — User I/O pin (Bank 2) |
| Chân 115 | I/O — User I/O pin (Bank 3) |
| Chân 116 | I/O — User I/O pin (Bank 3) |
| Chân 117 | I/O — User I/O pin (Bank 3) |
| Chân 118 | I/O — User I/O pin (Bank 3) |
| Chân 119 | GND — Ground |
| Chân 120 | I/O — User I/O pin (Bank 3) |
| Chân 121 | I/O — User I/O pin (Bank 3) |
| Chân 122 | I/O — User I/O pin (Bank 3) |
| Chân 123 | I/O — User I/O pin (Bank 3) |
| Chân 124 | I/O — User I/O pin (Bank 3) |
| Chân 125 | I/O — User I/O pin (Bank 3) |
| Chân 126 | I/O — User I/O pin (Bank 3) |
| Chân 127 | I/O — User I/O pin (Bank 4) |
| Chân 128 | I/O — User I/O pin (Bank 4) |
| Chân 129 | I/O — User I/O pin (Bank 4) |
| Chân 130 | I/O — User I/O pin (Bank 4) |
| Chân 131 | I/O — User I/O pin (Bank 4) |
| Chân 132 | GND — Ground |
| Chân 133 | I/O — User I/O pin (Bank 4) |
| Chân 134 | I/O — User I/O pin (Bank 4) |
| Chân 135 | VCCIO — I/O bank supply voltage |
| Chân 136 | VCCIO — I/O bank supply voltage |
| Chân 137 | VCCINT — Core supply 3.3 V |
| Chân 138 | TDO — JTAG Test Data Out |
| Chân 139 | GND — Ground |
| Chân 140 | I/O — User I/O pin (Bank 4) |
| Chân 141 | I/O — User I/O pin (Bank 4) |
| Chân 142 | I/O — User I/O pin (Bank 4) |
| Chân 143 | I/O — User I/O pin (Bank 4) |
| Chân 144 | I/O — User I/O pin (Bank 4) |
Ứng dụng tiêu biểu
EPM3256ATI144-10 phù hợp cho 6 Áp dụngs: Microcontroller Bus-Interface Glue Logic, Address Decoding and Chip-Select Generation, Peripheral Controllers (UART/SPI/I2C Bridges), State Machine and Sequencer Controllers, PCI Add-in Card Auxiliary Logic, Legacy System Sustainment and Last-Time-Buy.
Microcontroller Bus-Interface Glue Logic
The EPM3256ATI144-10 fits microcontroller bus-interface bridge designs where 256 macrocells and 116 user I/Os are needed to consolidate scattered 74-series logic into a single non-volatile device. With 10 ns tpd and 95.2 MHz fmax it comfortably bridges 33 MHz address/data buses. Its instant-on EEPROM eliminates FPGA boot delays on power-up, ensuring deterministic bus arbitration at reset. Pin count supports wide 32-bit data plus 24-bit address plus control signal decoding on a single device.
Được đề xuất
Address Decoding and Chip-Select Generation
The 256 macrocells of the EPM3256ATI144-10 support wide address decoding trees for memory-mapped systems with up to 32-bit address buses, generating dozens of chip-select signals with predictable combinational delay. MultiVolt I/O (1.8/2.5/3.3/5.0 V) lets a single CPLD interface modern 1.8 V memory controllers and legacy 5 V peripherals without external level shifters. JTAG ISP allows last-minute CS map updates during board bring-up.
Được đề xuất
Peripheral Controllers (UART/SPI/I2C Bridges)
Industrial control boards use the EPM3256ATI144-10 to implement multi-channel UART, SPI, and I2C controllers with hardware state machines rather than firmware bit-banging. The 116 user I/Os support up to a dozen full-duplex serial channels, and the deterministic 10 ns tpd simplifies worst-case latency analysis. Industrial -40 to +85°C operation suits factory floor equipment. JTAG boundary-scan plus ISP simplifies field firmware upgrades via the IEEE Std. 1532 flow.
Được đề xuất
State Machine and Sequencer Controllers
The MAX 3000A architecture is optimized for finite state machines (FSMs) and sequencers, making the EPM3256ATI144-10 ideal for motor-control sequencers, instrumentation state machines, and protocol sequencers. Each of the 256 macrocells holds a registered state bit, supporting FSMs with up to 32 states without logic splitting. EEPROM configuration guarantees deterministic startup, critical for safety sequencing where FPGA boot is unacceptable.
Được đề xuất
PCI Add-in Card Auxiliary Logic
The PCI-compatible I/O drivers and 3.3V/5V-tolerant MultiVolt interface make the EPM3256ATI144-10 a traditional choice for legacy PCI add-in cards requiring auxiliary glue logic, EEPROM emulation, or local bus decoding. The 116 I/Os accommodate PCI 32-bit data/address plus auxiliary GPIO. Industrial temperature supports outdoor PCI instrumentation. Designers should pair with PCI bridge ASICs and verify against PCI Local Bus Specification 2.2 timing.
Được đề xuất
Legacy System Sustainment and Last-Time-Buy
Many industrial and aerospace programs continue to use the EPM3256ATI144-10 in long-lifecycle systems (factory controllers, medical instrumentation, military-grade boards) where redesign is cost-prohibitive. The industrial -40 to +85°C range and EEPROM-based non-volatile configuration suit 15 to 20 year field deployments. Sustainment teams should secure last-time-buy inventory, identify pin-compatible MAX 3000A variants (EPM3256ATC144-10N) for cross-stock, and qualify modern MAX II replacements where PCB rework is feasible.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPM3256ATI144-10 — 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 | EPM3256ATC144-10N | EPM3256ATC144-10AA | EPM3256ATC144-10 | EPM3256ATC144-7N | EPM3128ATI144-10N |
|---|---|---|---|---|---|---|
| Brand | Intel (formerly Altera) | Intel | Intel | Intel | Intel | Intel |
| Package | 144-TQFP (20x20 mm) | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same |
| Number of Macrocells | 256 | 256 | 256 | 256 | 256 | 128 (-50%) |
| Propagation Delay (tpd max) | 10 ns | 10 ns | 10 ns | 10 ns | 7.5 ns (faster) | 10 ns |
| Operating Temperature | -40°C to +85°C (industrial) | 0°C to +70°C (commercial) | 0°C to +70°C (commercial) | 0°C to +70°C (commercial) | 0°C to +70°C (commercial) | -40°C to +85°C (industrial) |
| User I/Os | 116 | 116 | 116 | 116 | 116 | 96 |
| VCCINT Supply | 3.0 to 3.6 V (3.3 V nom) | 3.0 to 3.6 V | 3.0 to 3.6 V | 3.0 to 3.6 V | 3.0 to 3.6 V | 3.0 to 3.6 V |
| Series | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Bảo phân biệt quan trọng
- Industrial temperature range (-40°C to +85°C) (vsEPM3256ATC144-10N)
- Highest macrocell count in the 144-TQFP MAX 3000A family (vsEPM3128ATI144-10N)
- 10 ns propagation delay with full I/O count (vsEPM3256ATC144-7N)
Ghi chú thiết kế
The EPM3256ATI144-10 operates from a single 3.3 V VCCINT supply (3.0 to 3.6 V). Decouple VCCINT and each VCCIO bank with 0.1 µF ceramic capacitors placed within 5 mm of each supply pin, plus a bulk 10 µF tantalum per bank. MultiVolt I/O banks must each have their own VCCIO rail (1.8/2.5/3.3/5.0 V) — do not tie VCCIO banks together if your design uses mixed voltages. IccINT during ISP programming is approximately 50% higher than in user mode; ensure regulator headroom.
The 144-TQFP (20x20 mm) has 0.5 mm pitch leads — use 0.15 mm trace/space design rules with 0.25 mm via drill minimum. Provide a solid ground pour under the device for thermal spreading and signal-integrity. Place JTAG header or test points for TDI/TDO/TMS/TCK near the board edge to simplify ISP programming and boundary-scan test. Add 10 kΩ pull-ups on TDI, TMS, and TCK per IEEE 1149.1 to keep the JTAG TAP controller in known state at power-up.
Do not use I/O pins before JTAG programming finishes — leaving pins floating during ISP can cause bus contention. For unused I/O pins, configure them as outputs driving low (not high-Z) in the Quartus II pin assignment. Do not exceed 24 mA sink current per I/O (per the MAX 3000A datasheet recommendation). For new designs, migrate to MAX II (EPM240T144C5N) or MAX V (5M240ZT100C5N) families — they offer more logic density, lower power, and active production status.
Thông tin tuân thủ
Compliance information not present in verified web data. EPM3256ATI144-10 is an obsolete CPLD; RoHS status for this specific part was not found in DigiKey/Mouser/Octopart listings. Check Intel/legacy Altera documentation for original compliance declarations.
