EPM3032ATC44-4 - MAX 3000A CPLD, 32 Macrocells, 44-TQFP | Intel
MPN： EPM3032ATC44-4 ⚠ 最後購買機會EPM3032ATC44-4 概覽
What is a CPLD? A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays interconnected by a programmable switch matrix. CPLDs sit in the programmable logic hierarchy between simple SPLDs (e.g., classic 22V10 PALs) and FPGAs, offering deterministic timing, instant-on behavior, and 3.3 V in-system programmability via the IEEE 1149.1 JTAG interface. The MAX 3000A family is part of the broader programmable logic category, which falls under the semiconductor device taxonomy.
Key features of the EPM3032ATC44-4 include 3.3 V in-system programmability (ISP) through the built-in JTAG interface, MultiVolt I/O supporting 1.8 V, 2.5 V, and 3.3 V mixed-voltage interfacing, 32 macrocells with 100% interconnect, and an open-drain output option per I/O pin for wired-OR control signals. The device supports 1000 erase/program cycles and retains logic for a minimum of 20 years.
Architecturally, the EPM3032ATC44-4 uses a non-volatile EEPROM cell to store configuration, enabling instant-on operation without external boot memory. The deterministic interconnect fabric yields predictable, data-sheet-specified propagation delays independent of logic utilization - a key advantage over SRAM-based FPGAs for timing-critical control paths.
Typical applications include I/O expansion for microcontrollers and microprocessors, address decoding and bus interface logic, state-machine and glue-logic replacement for legacy 74-series TTL, power-supply sequencing, and industrial control boards requiring deterministic timing.
When designing with this device, ensure that the JTAG chain (TDI, TDO, TMS, TCK) is properly terminated and that the 3.3 V core supply rail has decoupling capacitors placed within 5 mm of the VCC pins.
This page synthesizes distributor pricing, JTAG-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 EPM3032ATC44-4 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： EPM3032ATC44-4 （相同外形與佔位） — 差異在於 Programming Interface, Configuration Memory, RoHS Status, Package, Process Technology.
EPM3032ATC44-4N
✅ 直接替換聯絡詢價
查看資料表 →EPM3032ATC44-7N
✅ 直接替換聯絡詢價
查看資料表 →EPM3032ATC44-10N
✅ 直接替換聯絡詢價
查看資料表 →EPM3032ATC44-10NAB
✅ 直接替換聯絡詢價
查看資料表 →EPM3032ALI44-10N
✅ 直接替換聯絡詢價
查看資料表 →LC4032V-44TN44
✅ 直接替換📋 參考替代品（不在目錄中）
EPM3032ATC44-4 最大額定值與電氣特性
| Family | MAX 3000A |
| Macrocells | 32 |
| Logic Array Blocks (LABs) | 2 |
| User I/O Pins | 34 |
| Speed Grade | -4 (tPD = 4.5 ns) |
| Supply Voltage (Core) | 3.3 V |
| MultiVolt I/O Support | 1.8 V / 2.5 V / 3.3 V |
| In-System Programmability | IEEE 1149.1 (JTAG) |
| 封裝 | 44-pin TQFP |
| Technology | CMOS EEPROM |
| Configuration Memory | Non-volatile EEPROM |
| Erase/Program Cycles | 1000 |
| Data Retention | 20 years (minimum) |
| Open-Drain Output Option | Yes (per I/O pin) |
EPM3032ATC44-4 腳位配置
| 腳位 1 | I/O — User I/O pin (macrocell I/O) |
| 腳位 2 | I/O — User I/O pin (macrocell I/O) |
| 腳位 3 | I/O — User I/O pin (macrocell I/O) |
| 腳位 4 | I/O — User I/O pin (macrocell I/O) |
| 腳位 5 | I/O — User I/O pin (macrocell I/O) |
| 腳位 6 | I/O — User I/O pin (macrocell I/O) |
| 腳位 7 | GND — Ground |
| 腳位 8 | I/O — User I/O pin (macrocell I/O) |
| 腳位 9 | I/O — User I/O pin (macrocell I/O) |
| 腳位 10 | I/O — User I/O pin (macrocell I/O) |
| 腳位 11 | I/O — User I/O pin (macrocell I/O) |
| 腳位 12 | GND — Ground |
| 腳位 13 | I/O — User I/O pin (macrocell I/O) |
| 腳位 14 | I/O — User I/O pin (macrocell I/O) |
| 腳位 15 | I/O — User I/O pin (macrocell I/O) |
| 腳位 16 | I/O — User I/O pin (macrocell I/O) |
| 腳位 17 | I/O — User I/O pin (macrocell I/O) |
| 腳位 18 | I/O — User I/O pin (macrocell I/O) |
| 腳位 19 | I/O — User I/O pin (macrocell I/O) |
| 腳位 20 | I/O — User I/O pin (macrocell I/O) |
| 腳位 21 | GND — Ground |
| 腳位 22 | I/O — User I/O pin (macrocell I/O) |
| 腳位 23 | I/O — User I/O pin (macrocell I/O) |
| 腳位 24 | I/O — User I/O pin (macrocell I/O) |
| 腳位 25 | OE2/GCLK2 — Output enable 2 / Global clock 2 |
| 腳位 26 | I/O — User I/O pin (macrocell I/O) |
| 腳位 27 | GND — Ground |
| 腳位 28 | VCC — 3.3 V core supply |
| 腳位 29 | I/O — User I/O pin (macrocell I/O) |
| 腳位 30 | I/O — User I/O pin (macrocell I/O) |
| 腳位 31 | OE1/GCLK1 — Output enable 1 / Global clock 1 |
| 腳位 32 | I/O — User I/O pin (macrocell I/O) |
| 腳位 33 | I/O — User I/O pin (macrocell I/O) |
| 腳位 34 | VCC — 3.3 V I/O supply |
| 腳位 35 | I/O — User I/O pin (macrocell I/O) |
| 腳位 36 | GND — Ground |
| 腳位 37 | I/O — User I/O pin (macrocell I/O) |
| 腳位 38 | I/O — User I/O pin (macrocell I/O) |
| 腳位 39 | I/O — User I/O pin (macrocell I/O) |
| 腳位 40 | I/O — User I/O pin (macrocell I/O) |
| 腳位 41 | TDI — JTAG Test Data In |
| 腳位 42 | TCK — JTAG Test Clock |
| 腳位 43 | TMS — JTAG Test Mode Select |
| 腳位 44 | TDO — JTAG Test Data Out |
典型應用
EPM3032ATC44-4 適用於 6 應用s: Microcontroller I/O Expansion, Address Decoding and Bus Glue Logic, TTL Glue-Logic Replacement, Industrial Control and Sequencing, Power-Supply Sequencing and Supervisor, State Machine and Protocol Bridging.
Microcontroller I/O Expansion
The EPM3032ATC44-4 expands GPIO count for microcontrollers lacking sufficient I/O, such as legacy 8051 or PIC16 parts. Its 34 user I/O pins and 4.5 ns tPD allow real-time parallel port expansion with deterministic timing - critical for industrial control panels. The MultiVolt I/O interface (1.8 V, 2.5 V, 3.3 V) lets it bridge between a 1.8 V MCU and 3.3 V peripherals without level shifters. Programming via JTAG enables in-field firmware updates.
推薦
Address Decoding and Bus Glue Logic
Use the EPM3032ATC44-4 for legacy bus-interface glue logic in systems based on ISA, PC/104, or parallel SRAM/Flash architectures. The 4.5 ns tPD makes it suitable for the address-to-CS path on memories with tAA in the 10-15 ns range, providing 5-10 ns margin. The non-volatile EEPROM configuration boots instantly without external flash, simplifying system design. 34 I/O pins are ample for 8-bit/16-bit address/control demultiplexing plus chip-select fan-out.
推薦
TTL Glue-Logic Replacement
Replace discrete 74LS/74HC TTL logic clusters (e.g., 74LS138 decoders, 74LS151 muxes, 74LS374 latches) with a single EPM3032ATC44-4, reducing board area, BOM count, and power consumption. The 32 macrocells comfortably absorb 5-8 equivalent TTL packages. Deterministic 4.5 ns timing matches or exceeds TTL propagation delays. JTAG ISP allows late-stage board revisions without respinning PALs or reburning PROMs, accelerating development cycles.
推薦
Industrial Control and Sequencing
The EPM3032ATC44-4 is well suited for industrial relay sequencing, motor-start interlock logic, and safety watchdog circuits thanks to its instant-on non-volatile EEPROM and 3.3 V core. The 1000 erase/program cycle rating and 20-year retention support long-life industrial deployment. Combined with the open-drain output option per I/O pin, the CPLD can drive wired-OR fault signals shared across multiple subsystems. Industrial-temperature variants (-10NAB, -I) extend operating range to -40 C to +85 C.
推薦
Power-Supply Sequencing and Supervisor
Generate precision power-up and power-down sequencing signals for multi-rail systems (e.g., 1.8 V core / 3.3 V IO / 5 V analog) with the EPM3032ATC44-4. Its 4.5 ns propagation delay lets it respond within microseconds to PG (power-good) inputs from DC-DC converters, ensuring strict rail-on/rail-off ordering. The non-volatile EEPROM guarantees deterministic boot behavior from cold-start. Open-drain outputs make it easy to wire-OR multiple PG signals from independent regulators.
推薦
State Machine and Protocol Bridging
Implement custom state machines and protocol bridges (e.g., SPI-to-parallel, UART-to-I2C glue, PWM generators) using the EPM3032ATC44-4. With 32 macrocells you can express 5-8 state FSMs plus auxiliary counters. The 4.5 ns tPD supports SPI clock rates up to ~50 MHz when used as a shift-register bridge. JTAG ISP allows in-circuit debugging and rapid iteration. MultiVolt I/O eliminates external level shifters when bridging 1.8 V and 3.3 V domains.
推薦
推薦產品摘要
工程參考資料，適用於 EPM3032ATC44-4 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | EPM3032ATC44-4N | EPM3032ATC44-7N | EPM3032ATC44-10N | EPM3032ATC44-10NAB | EPM3032ALI44-10N | LC4032V-44TN44 |
|---|---|---|---|---|---|---|---|
| Brand | Intel (formerly Altera) | Intel | Intel | Intel | Intel | Intel | Lattice Semiconductor |
| Package | 44-TQFP | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same |
| Macrocells | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Logic Array Blocks | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| User I/O Pins | 34 | 34 | 34 | 34 | 34 | 34 | 30 |
| tPD (Propagation Delay) | 4.5 ns | 4.5 ns | 7.5 ns | 10 ns | 10 ns | 10 ns | 5.0 ns |
| Core Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Programming Interface | JTAG (IEEE 1149.1) | JTAG | JTAG | JTAG | JTAG | JTAG | JTAG (Lattice-specific chain) |
| Lead-Free Finish | Unknown / non-N suffix | Yes (N suffix) | Yes (N suffix) | Yes (N suffix) | Yes (N suffix) | Yes (N suffix) | Yes (Lattice standard) |
| Operating Temperature | Commercial (0 C to +70 C) | Commercial | Commercial | Commercial | Industrial (-40 C to +85 C) | Industrial (-40 C to +85 C) | Commercial |
主要差異化特點
- Industry-standard 4.5 ns tPD with 32-macrocell capacity in compact 44-TQFP (對比EPM3032ATC44-7N)
- Drop-in same-package lead-free option (對比EPM3032ATC44-4N)
- Industrial temperature grade option in same package (對比EPM3032ATC44-10NAB)
- Cross-brand drop-in with mature JTAG ISP ecosystem (對比LC4032V-44TN44 (Lattice))
設計說明
Estimated: at 100% I/O toggling with 34 outputs driving 5 pF loads at 50 MHz, ICCINT for the EPM3032ATC44-4 is roughly 60-80 mA. Place a 0.1 uF ceramic decoupling capacitor within 5 mm of each VCC pin (pins 28 and 34) and a bulk 10 uF tantalum at the board power entry. The MultiVolt I/O pins have separate VCCIO rails on larger MAX 3000A devices, but the 44-pin TQFP shares a single 3.3 V rail; ensure all driven I/O loads respect 3.3 V VIH/VIL thresholds.
Route JTAG signals TDI (pin 41), TDO (pin 44), TMS (pin 43), and TCK (pin 42) with 50 ohm controlled impedance if trace length exceeds 50 mm. Add 10 kohm pull-ups on TMS and TDI per IEEE 1149.1 to keep the JTAG state machine in known state at power-up. Place a JTAG header (2x5 0.1 inch) at the board edge for ByteBlasterMV/USB-Blaster cable access during production programming and in-field firmware updates.
Do not assume MAX 3000A device files (.pof) are forward-compatible with newer Quartus Prime releases - the MAX 3000A family is supported only by legacy Quartus II 9.0 or MAX+PLUS II. Migrate your design source (VHDL/Verilog) to a supported modern family (MAX V, MAX 10) before Intel Quartus II support ends. Additionally, when migrating from EPM3032ATC44-4 to EPM3032ATC44-4N, verify reflow profile compatibility if mixing Pb-free and SnPb finishes on the same board.
合規資訊
RoHS compliance status is unclear from the verified web data. The non-N suffix variant (EPM3032ATC44-4) is presumed to use SnPb or eutectic finish (non-RoHS) per Altera's historical part-numbering convention. Choose the -4N variant for confirmed RoHS compliance. AEC-Q100 is not applicable to CPLD logic devices. Conflict-minerals compliance should be requested via distributor CoC.