EPM3032ATC44-7 - 32-Macrocell MAX 3000A CPLD, 7.5ns TQFP-44
MPN: EPM3032ATC44-7 ✗ Cuối đờiEPM3032ATC44-7 Tóm tắt
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that implements combinatorial and registered logic using a small number of macrocells organized into logic array blocks (LABs). In the system hierarchy it sits below FPGAs in density (typically tens to a few hundred macrocells) but offers deterministic, single-cycle propagation delay and instant-on behavior without external boot memory, making it ideal for glue logic, bus decoding, interface bridging, and power-up sequencing. MAX 3000A devices are widely used in cost-sensitive industrial and consumer applications where predictable timing matters more than raw logic capacity.
Key features of the EPM3032ATC44-7 include 32 macrocells across 2 logic array blocks, a 7.5 ns tPD, a 138.9 MHz internal fCNT, MultiVolt I/O supporting 3.3 V/5 V mixed-voltage operation, JTAG-based in-system programmability (ISP), and IEEE 1149.1 boundary-scan test support. Each I/O pin can be configured as a totem-pole or open-drain output, enabling wire-OR control signaling. The device is supported by the Quartus II design toolchain.
Architecture-wise, the MAX 3000A family uses a CMOS EEPROM-based non-volatile fabric, allowing the configuration to be retained without external memory and to begin functioning within microseconds of VCC ramp. The 44-pin TQFP package provides adequate thermal dissipation for typical CPLD power budgets and supports hand-soldered rework. Designers familiar with the legacy MAX 7000 series will find the Quartus design flow and JTAG programming model essentially identical.
Typical applications include 5 V-to-3.3 V address/data bus decoding and level shifting in legacy systems, I/O expansion for microcontrollers with limited pin count, FPGA configuration control and power-sequencing logic, glue logic between processors and peripherals, and protocol bridge interfaces (UART, SPI, I2C) in industrial control boards. The wide operating voltage range and deterministic timing make it a strong fit for industrial automation backplanes and factory-floor I/O modules.
When designing with this device, ensure that JTAG chain length and TMS/TCK signal integrity are maintained, because ISP reuse of those pins can cause contention if not properly isolated during in-field programming. The device's I/O pins are 5 V-tolerant when VCCIO is set to 3.3 V; care must be taken not to exceed the absolute maximum ratings on any pin.
This page synthesizes distributor pricing, parametric comparison, and practical design considerations not found in the bare manufacturer datasheet, making it easier to evaluate the EPM3032ATC44-7 against modern drop-in alternatives.
Bộ thay thế dễ dàng lắp đặt cho EPM3032ATC44-7 — 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 EPM3032ATC44-7 (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Programming Interface, Process Technology, RoHS Status.
EPM3064ATC44-7
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM3032ATC44-10
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM3032ATC44-4
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM3032ATC44-10N
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM3032ALI44-10N
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM240T100C5N
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM3032ATC44-7 Tỷ lệ tối đa & tính chất điện
| Family | MAX 3000A |
| Macro Cells | 32 |
| Logic Array Blocks | 2 |
| Usable Gates | 600 |
| Maximum User I/O | 34 |
| Propagation Delay (tPD) | 7.5 ns |
| Internal Counter Frequency (fCNT) | 138.9 MHz |
| Supply Voltage (VCCINT) | 3.3 V |
| I/O Standard | MultiVolt, 3.3 V / 5 V tolerant |
| Nhiệt độ hoạt động | 0 °C to +70 °C (commercial) |
| Hộp | 44-pin TQFP |
| Kiểu lắp đặt | Surface Mount |
| Programming Interface | JTAG (IEEE 1149.1) ISP |
| Output Options | Totem-pole or open-drain per I/O |
| Process Technology | CMOS EEPROM (non-volatile) |
Cấu hình chân EPM3032ATC44-7
| Chân 1 | I/O — User I/O pin (global clock or general I/O depending on assignment) |
| 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 | GND — Ground |
| Chân 11 | I/O — User I/O pin |
| Chân 12 | I/O — User I/O pin |
| Chân 13 | I/O — User I/O pin |
| 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 | GND — Ground |
| 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 | I/O — User I/O pin |
| Chân 28 | I/O — User I/O pin |
| Chân 29 | I/O — User I/O pin |
| Chân 30 | TDI — JTAG Test Data In |
| Chân 31 | TMS — JTAG Test Mode Select |
| Chân 32 | TCK — JTAG Test Clock |
| Chân 33 | I/O — User I/O pin (shared with JTAG) |
| Chân 34 | I/O — User I/O pin |
| Chân 35 | VCCINT — Core supply voltage (3.3 V) |
| Chân 36 | I/O — User I/O pin |
| Chân 37 | I/O — User I/O pin |
| Chân 38 | I/O — User I/O pin |
| Chân 39 | GND — Ground |
| Chân 40 | I/O — User I/O pin |
| Chân 41 | I/O — User I/O pin |
| Chân 42 | TDO — JTAG Test Data Out |
| Chân 43 | I/O — User I/O pin |
| Chân 44 | I/O — User I/O pin |
Ứng dụng tiêu biểu
EPM3032ATC44-7 phù hợp cho 7 Áp dụngs: Legacy 5 V-to-3.3 V Address/Data Bus Decoder, Microcontroller I/O Expansion and Port Multiplexing, FPGA Configuration and Power-Sequencing Controller, Industrial Control Board Glue Logic, Protocol Bridge and Interface Translator, Consumer Electronics Display and Keypad Controller, Test and Measurement Fixture Logic.
Legacy 5 V-to-3.3 V Address/Data Bus Decoder
The EPM3032ATC44-7 is well suited to legacy bus decoding tasks where a 5 V microcontroller must interface to a 3.3 V memory or peripheral bus. Its MultiVolt I/O accepts 5 V inputs and drives 3.3 V outputs cleanly, while the 32 macrocells are more than sufficient for 8-to-24-bit address decoders, chip-select glue logic, and wait-state generators. The 7.5 ns tPD keeps address-to-CS latency well below typical memory access times, preserving timing margins in systems originally designed around 74LS138/74F139 logic. Pin compatibility with the EPM3064ATC44-7 lets designers drop in higher density without PCB rework.
Được đề xuất
Microcontroller I/O Expansion and Port Multiplexing
Designers commonly use the EPM3032ATC44-7 to expand the limited GPIO count of low-cost MCUs. With 34 user I/O pins and up to 32 macrocells, the device can implement shift registers, 7-segment or LCD multiplexers, keypad scanners, and PWM fan controllers that would otherwise require additional peripheral ICs. The non-volatile EEPROM fabric means the expansion logic is available within microseconds of power-up, eliminating the boot latency typical of FPGAs. JTAG ISP allows field firmware updates without removing the chip from the board.
Được đề xuất
FPGA Configuration and Power-Sequencing Controller
The EPM3032ATC44-7 is frequently deployed as a power-sequencing and configuration watchdog for larger FPGAs. Its deterministic 7.5 ns tPD ensures CONFIG_DONE, DONE, and POR signals are generated with precise timing, while its non-volatile fabric eliminates the cold-boot race condition seen with MCU-based sequencers. The open-drain output option on every pin simplifies wire-ORed control signals when multiple rails need to assert a common enable. The 3.3 V core matches the VCCO bank voltage of most modern FPGAs, eliminating level-shifters.
Được đề xuất
Industrial Control Board Glue Logic
In factory-floor PLCs and motor-control boards, the EPM3032ATC44-7 serves as a flexible glue-logic replacement for half a dozen 74HC/74AHC packages. It can implement optocoupler debouncing, encoder quadrature decoding, PWM blanking, fault latching, and watchdog timing in a single chip, reducing BOM cost and PCB area. The commercial 0-70 °C temperature range is sufficient for enclosed industrial cabinets; for harsh environments the industrial-grade EPM3032ALI44-10 variant is preferred. JTAG boundary scan speeds board-level testing in production.
Được đề xuất
Protocol Bridge and Interface Translator
The EPM3032ATC44-7 is often used as a low-cost bridge between legacy and modern serial protocols - for example, UART-to-SPI, SPI-to-I2C, or parallel-to-LCD translation. With 32 macrocells and JTAG reprogrammability, a single device can serve multiple bridge roles across product variants by simply swapping the JEDEC bitmap. The 7.5 ns tPD ensures clean clock-domain crossing for short packets. Its 3.3 V core and 5 V-tolerant I/O simplify interfacing to both legacy 5 V peripherals and modern low-voltage MCUs on the same board.
Được đề xuất
Consumer Electronics Display and Keypad Controller
The EPM3032ATC44-7 fits naturally as a display/keypad controller in consumer appliances such as set-top boxes, microwave ovens, and HVAC thermostats. Its 34 user I/O pins can directly drive 4-digit 7-segment LED displays with multiplexing, scan a 4×4 keypad matrix, and generate IR-modulated carrier signals for remote-control output. The non-volatile configuration means the device is operational before the main MCU finishes its bootloader, enabling instant user feedback. Low power consumption and small TQFP-44 footprint suit compact, cost-sensitive enclosures.
Được đề xuất
Test and Measurement Fixture Logic
Bench-top test fixtures and ATE interface boards often use the EPM3032ATC44-7 to implement pattern generators, edge detectors, and timing-critical stimulus logic. Its deterministic 7.5 ns propagation delay allows precise pulse-width and skew control that is hard to achieve with discrete 74-series logic. JTAG boundary-scan support simplifies fixture self-test and board bring-up. The compact TQFP-44 package and 3.3 V supply allow it to be embedded in small probe-head assemblies alongside analog instrumentation circuitry.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPM3032ATC44-7 — 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 | EPM3064ATC44-7 | EPM3032ATC44-10 | EPM3032ATC44-4 | EPM3032ALI44-10N | EPM240T100C5N |
|---|---|---|---|---|---|---|
| Brand | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) |
| Package | TQFP-44 | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same | TQFP-100 - larger |
| Family | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A | MAX II |
| Macro Cells | 32 | 64 (+100%) | 32 | 32 | 32 | 240 (+650%) |
| Propagation Delay (tPD) | 7.5 ns | 7.5 ns | 10 ns | 4.5 ns | 10 ns | 5 ns (MAX II) |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V (core), 1.8/2.5/3.3 V I/O |
| User I/O Count | 34 | 34 | 34 | 34 | 34 | 80 |
| Operating Temperature | 0 °C to +70 °C (commercial) | 0 °C to +70 °C | 0 °C to +70 °C | 0 °C to +70 °C | -40 °C to +85 °C (industrial) | 0 °C to +85 °C |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Active |
Bảo phân biệt quan trọng
- Highest-speed commercial grade in the 32-macrocell MAX 3000A TQFP-44 line (vsEPM3032ATC44-10)
- Pin-compatible upgrade path to 64 macrocells without PCB rework (vsEPM3064ATC44-7)
- MultiVolt I/O for 5 V mixed-voltage interfacing without level shifters (vsEPM240T100C5N (MAX II))
- Non-volatile EEPROM fabric enables instant-on at power-up (vsSRAM-based FPGAs)
Ghi chú thiết kế
Estimated: place 0.1 µF decoupling capacitors within 5 mm of every VCCINT and VCCIO pin. The EPM3032ATC44-7 draws brief inrush currents during JTAG ISP, and long supply traces can cause voltage droops that reset the device during programming. Use a continuous ground plane beneath the TQFP-44 footprint to minimize digital switching noise on adjacent analog circuits. Keep JTAG traces (TDI/TDO/TMS/TCK) shorter than 100 mm and series-terminate if the chain length exceeds 50 mm to avoid signal-integrity issues during boundary-scan test.
Do not apply 5 V signals to any I/O pin when VCCIO is unpowered. Although the MAX 3000A inputs are 5 V-tolerant, the input ESD diodes will forward-bias and draw current if the device is unpowered - in the worst case this can latch up the part. Always ensure VCCIO ramps up before any input driver, or add a power-isolating buffer. Also note that open-drain outputs require external pull-ups; the part does not include internal weak pull-ups on user I/O pins, contrary to some FPGA families.
When laying out the 44-pin TQFP, allocate pin 1 to a known reference (e.g., a marked dot or silkscreen indicator) and orient the package so JTAG pins (TDI/TDO/TMS/TCK) cluster near the programming header. This simplifies in-system programming and boundary-scan test fixtures. Keep the TRST and JTAG enable signals accessible for production programming. Maintain at least 8 mm of clearance between the CPLD and any high-frequency switching node to avoid injecting noise into the EEPROM charge pump.
Thông tin tuân thủ
RoHS, REACH, and lead-free status were not present in the verified web data; buyers should request the manufacturer certificate of compliance before using the part in RoHS-restricted regions.