EPM3032ATC44-7 - 32-Macrocell MAX 3000A CPLD, 7.5ns TQFP-44
MPN: EPM3032ATC44-7 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.78 | $5.78 |
| 10 | $4.62 | $46.20 |
| 100 | $3.41 | $341.00 |
| 500 | $2.74 | $1,370.00 |
| 1,000 | $2.32 | $2,320.00 |
Drop-in alternatives for EPM3032ATC44-7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM3064ATC44-7
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →EPM3032ATC44-10
✅ Drop-In✓ In Stock
$0.78 / Unit
View Datasheet →EPM3032ATC44-4
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.74 / Unit
View Datasheet →EPM3032ATC44-10N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$2.46 / Unit
View Datasheet →EPM3032ALI44-10N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$2.95 / Unit
View Datasheet →EPM240T100C5N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$4.32 / Unit
View Datasheet →EPM3032ATC44-7 Maximum Ratings & Electrical Characteristics
| 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 |
| Operating Temperature | 0 °C to +70 °C (commercial) |
| Package | 44-pin TQFP |
| Mounting Type | 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) |
EPM3032ATC44-7 Pin Configuration
| Pin 1 | I/O — User I/O pin (global clock or general I/O depending on assignment) |
| Pin 2 | I/O — User I/O pin |
| Pin 3 | I/O — User I/O pin |
| Pin 4 | I/O — User I/O pin |
| Pin 5 | I/O — User I/O pin |
| Pin 6 | I/O — User I/O pin |
| Pin 7 | I/O — User I/O pin |
| Pin 8 | I/O — User I/O pin |
| Pin 9 | I/O — User I/O pin |
| Pin 10 | GND — Ground |
| Pin 11 | I/O — User I/O pin |
| Pin 12 | I/O — User I/O pin |
| Pin 13 | I/O — User I/O pin |
| Pin 14 | I/O — User I/O pin |
| Pin 15 | I/O — User I/O pin |
| Pin 16 | I/O — User I/O pin |
| Pin 17 | I/O — User I/O pin |
| Pin 18 | I/O — User I/O pin |
| Pin 19 | I/O — User I/O pin |
| Pin 20 | I/O — User I/O pin |
| Pin 21 | I/O — User I/O pin |
| Pin 22 | GND — Ground |
| Pin 23 | I/O — User I/O pin |
| Pin 24 | I/O — User I/O pin |
| Pin 25 | I/O — User I/O pin |
| Pin 26 | I/O — User I/O pin |
| Pin 27 | I/O — User I/O pin |
| Pin 28 | I/O — User I/O pin |
| Pin 29 | I/O — User I/O pin |
| Pin 30 | TDI — JTAG Test Data In |
| Pin 31 | TMS — JTAG Test Mode Select |
| Pin 32 | TCK — JTAG Test Clock |
| Pin 33 | I/O — User I/O pin (shared with JTAG) |
| Pin 34 | I/O — User I/O pin |
| Pin 35 | VCCINT — Core supply voltage (3.3 V) |
| Pin 36 | I/O — User I/O pin |
| Pin 37 | I/O — User I/O pin |
| Pin 38 | I/O — User I/O pin |
| Pin 39 | GND — Ground |
| Pin 40 | I/O — User I/O pin |
| Pin 41 | I/O — User I/O pin |
| Pin 42 | TDO — JTAG Test Data Out |
| Pin 43 | I/O — User I/O pin |
| Pin 44 | I/O — User I/O pin |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
EPM3032ATC44-7 is suitable for 7 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for EPM3032ATC44-7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Highest-speed commercial grade in the 32-macrocell MAX 3000A TQFP-44 line (vs EPM3032ATC44-10)
- Pin-compatible upgrade path to 64 macrocells without PCB rework (vs EPM3064ATC44-7)
- MultiVolt I/O for 5 V mixed-voltage interfacing without level shifters (vs EPM240T100C5N (MAX II))
- Non-volatile EEPROM fabric enables instant-on at power-up (vs SRAM-based FPGAs)
Design Notes
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.
Compliance Information
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.
