EPM3032A-TC44-10 - 32-Macrocell 3.3V CPLD, TQFP-44 | Altera
MPN: EPM3032A-TC44-10 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.2 | $112.00 |
| 100 | $9.85 | $985.00 |
| 500 | $8.6 | $4,300.00 |
| 1,000 | $7.45 | $7,450.00 |
EPM3032A-TC44-10 Overview
A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macrocell blocks on a single chip with a programmable interconnect matrix. Within the digital logic hierarchy, CPLDs sit between simple SPLDs (PALs/GALs) and FPGAs: they offer faster deterministic pin-to-pin timing than FPGAs, non-volatile on-chip storage unlike SRAM-based FPGAs, and higher density than legacy 22V10-style SPLDs. The MAX 3000A family targets glue-logic, bus-interface, and state-machine replacement tasks that previously required discrete 74LS/74HC logic or ASIC redesigns.
Key features of the EPM3032A include 3.3 V in-system programmability (ISP) via the built-in IEEE Std. 1149.1 JTAG interface, six output enables for bus-oriented multiplexing, programmable power-saving mode per macrocell, and JTAG boundary-scan test support. The EEPROM configuration cell provides instant-on operation with no external boot PROM. Commercial operating temperature is 0 °C to 70 °C.
The MAX architecture implements each macrocell with a programmable AND/OR array plus a configurable flip-flop, supporting combinatorial or registered outputs. The LAB interconnect uses a fast uniform delay matrix so any pin-to-pin path can be predicted by adding the routing delay to the macrocell delay, simplifying static timing analysis for critical control paths.
Typical applications include JTAG-based board-level glue logic, address decoding and bus-interface bridges for 8/16-bit microcontrollers, I/O expansion for low-density FPGAs, and industrial control state machines. Its 34 I/Os comfortably support 32-bit datapath multiplexing plus control signals.
When designing, observe 3.3 V I/O compatibility — the EPM3032A inputs are not 5 V tolerant, so external level translation is required when interfacing with 5 V logic. Use the Altera MAX+PLUS II or Quartus II design tools for compilation, fitting, and ISP programming.
This page synthesizes distributor pricing, drop-in alternatives within the MAX 3000A family, and practical design notes not consolidated in the manufacturer datasheet PDF.
Drop-in alternatives for EPM3032A-TC44-10 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with EPM3032A-TC44-10 (same form factor and footprint) — differing in Package, Operating Temperature, Mounting Type, Family, Usable Gates.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM3032ATC44-10N
✅ Drop-In✓ In Stock
$2.46 / Unit
View Datasheet →EPM3064ATC44-10N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$5.1 / Unit
View Datasheet →EPM3128ATC44-10N
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
EPM3032A-TC44-10 Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Macrocells | 32 |
| Logic Array Blocks | 2 |
| User I/O Pins | 34 |
| Logic Gates | 600 |
| Propagation Delay (tPD) | 10 ns |
| Maximum Internal Frequency | 227.3 MHz |
| Supply Voltage (VCCINT/VCCIO) | 3.0 V to 3.6 V (typ. 3.3 V) |
| In-System Programmability | Yes (IEEE 1149.1 JTAG) |
| Output Enables | 6 |
| Configuration Memory | CMOS EEPROM (non-volatile) |
| Package | TQFP-44 |
| Mounting Type | Surface Mount |
| Operating Temperature (Commercial) | 0 °C to +70 °C |
| Process Technology | CMOS EEPROM |
EPM3032A-TC44-10 Pin Configuration
| Pin 1 | I/O — User I/O pin (bidirectional) |
| Pin 2 | I/O — User I/O pin (bidirectional) |
| Pin 3 | I/O — User I/O pin (bidirectional) |
| Pin 4 | I/O — User I/O pin (bidirectional) |
| Pin 5 | I/O — User I/O pin (bidirectional) |
| Pin 6 | I/O — User I/O pin (bidirectional) |
| Pin 7 | I/O — User I/O pin (bidirectional) |
| Pin 8 | I/O — User I/O pin (bidirectional) |
| Pin 9 | I/O — User I/O pin (bidirectional) |
| Pin 10 | GND — Ground |
| Pin 11 | I/O — User I/O pin (bidirectional) |
| Pin 12 | I/O — User I/O pin (bidirectional) |
| Pin 13 | I/O — User I/O pin (bidirectional) |
| Pin 14 | I/O — User I/O pin (bidirectional) |
| Pin 15 | TDI — JTAG Test Data In |
| Pin 16 | TMS — JTAG Test Mode Select |
| Pin 17 | TCK — JTAG Test Clock |
| Pin 18 | I/O — User I/O pin (bidirectional) |
| Pin 19 | I/O — User I/O pin (bidirectional) |
| Pin 20 | I/O — User I/O pin (bidirectional) |
| Pin 21 | VCC — 3.3 V supply (VCCINT/VCCIO) |
| Pin 22 | I/O — User I/O pin (bidirectional) |
| Pin 23 | I/O — User I/O pin (bidirectional) |
| Pin 24 | I/O — User I/O pin (bidirectional) |
| Pin 25 | I/O — User I/O pin (bidirectional) |
| Pin 26 | I/O — User I/O pin (bidirectional) |
| Pin 27 | GND — Ground |
| Pin 28 | I/O — User I/O pin (bidirectional) |
| Pin 29 | I/O — User I/O pin (bidirectional) |
| Pin 30 | I/O — User I/O pin (bidirectional) |
| Pin 31 | I/O — User I/O pin (bidirectional) |
| Pin 32 | I/O — User I/O pin (bidirectional) |
| Pin 33 | I/O — User I/O pin (bidirectional) |
| Pin 34 | I/O — User I/O pin (bidirectional) |
| Pin 35 | I/O — User I/O pin (bidirectional) |
| Pin 36 | I/O — User I/O pin (bidirectional) |
| Pin 37 | TDO — JTAG Test Data Out |
| Pin 38 | GND — Ground |
| Pin 39 | VCC — 3.3 V supply (VCCINT/VCCIO) |
| Pin 40 | I/O — User I/O pin (bidirectional) |
| Pin 41 | I/O — User I/O pin (bidirectional) |
| Pin 42 | I/O — User I/O pin (bidirectional) |
| Pin 43 | I/O — User I/O pin (bidirectional) |
| Pin 44 | I/O — User I/O pin (bidirectional) |
Typical Applications
EPM3032A-TC44-10 is suitable for 6 applications: JTAG-Programmable Board Glue Logic, Address Decoder for 8/16-bit Microcontrollers, Bus Interface Bridge and Protocol Converter, I/O Expansion for Low-Density FPGAs, Industrial Control State Machine, Legacy 5V-to-3.3V Level Translation Hub.
JTAG-Programmable Board Glue Logic
The EPM3032A-TC44-10 serves as in-system programmable glue logic that replaces dozens of discrete 74HC/74LS gates on a circuit board. Its 32 macrocells comfortably implement address decoders, chip-select generators, and bus arbiter logic. The built-in IEEE 1149.1 JTAG interface lets production engineers re-program timing or decode maps without removing the device from the board. Compared to discrete logic, the CPLD reduces PCB area, eliminates socketed IC inventory variants, and enables late-stage design changes. The 10 ns tPD is fast enough for synchronous 50 MHz glue paths, and the 3.3 V supply matches modern MCU I/O voltages directly.
Recommended
Address Decoder for 8/16-bit Microcontrollers
The EPM3032A-TC44-10 is widely used as an address decoder and chip-select generator for 8/16-bit microcontroller systems such as 8051, PIC, and MSP430. Its 34 I/O pins easily decode 24-bit address buses and generate chip-selects for SRAM, Flash, peripheral chips, and memory-mapped I/O. The deterministic 10 ns pin-to-pin delay ensures address-to-chip-select timing is predictable for synchronous memory interfaces. Unlike discrete 74HC138/139 decoder ICs, the CPLD allows custom decode maps (e.g., partial decoding, mirroring, and aliased regions) that would otherwise require multiple decoder stages.
Recommended
Bus Interface Bridge and Protocol Converter
The EPM3032A-TC44-10 bridges mismatched bus protocols between MCUs, DSPs, FPGAs, and peripheral ICs. Typical implementations include 8-bit-to-16-bit bus width conversion, parallel-to-multiplexed address/data bus demultiplexing, and custom glue between asynchronous peripheral interfaces. The CPLD's six output enables support tri-state bus multiplexing with multiple masters. With 10 ns tPD, the device introduces minimal wait-state overhead. The non-volatile EEPROM configuration means the bridge logic is active immediately at power-up with no boot PROM, which is critical for systems where deterministic startup timing matters.
Recommended
I/O Expansion for Low-Density FPGAs
Designers pair the EPM3032A-TC44-10 with low-density FPGAs such as Cyclone or older ACEX families to offload simple glue functions, freeing FPGA logic cells for DSP or state-machine work. The CPLD handles slow control signals, LED driving, push-button debouncing, and reset distribution while the FPGA focuses on high-speed datapath. This split reduces overall FPGA device cost because the user can move to a smaller, cheaper FPGA. The MAX 3000A CPLD and a Cyclone FPGA both operate from 3.3 V, allowing direct I/O interconnection without level shifters.
Recommended
Industrial Control State Machine
The EPM3032A-TC44-10 implements deterministic finite state machines for industrial control boards — conveyor sequencing, motor-start interlocks, sensor-debounce + ladder logic, and safety-critical timing chains. Each macrocell embeds a configurable flip-flop so 32 state registers fit comfortably in this device. The 0 °C to +70 °C commercial operating range suits factory-floor enclosures. Compared to microcontrollers running state-machine firmware, a CPLD provides deterministic cycle-by-cycle behavior with no RTOS jitter, and survives industrial EMI better because there is no firmware stack to corrupt. JTAG ISP enables field updates to state-machine logic without depaneling the PCB.
Recommended
Legacy 5V-to-3.3V Level Translation Hub
Although the EPM3032A-TC44-10 itself runs at 3.3 V, designers frequently pair it with external bus-switch level translators (74LVC245, TXS0108E) to bridge legacy 5 V peripheral buses into modern 3.3 V MCUs and ASICs. The CPLD's 34 I/Os can simultaneously control direction pins and chip-selects across multiple voltage domains, replacing a handful of discrete direction-control gates. The 3.3 V supply rail is derived on-board from the 5 V bus via an LDO such as a 1117-3.3, providing a single regulated source for both the CPLD and the 3.3 V peripheral side.
Recommended
Recommended Products Summary
Engineering reference data for EPM3032A-TC44-10 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3032ATC44-10N | EPM3064ATC44-10N | EPM3128ATC44-10N |
|---|---|---|---|---|
| Brand | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) |
| Package | TQFP-44 | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same |
| Macrocells | 32 | 32 | 64 | 128 |
| Logic Array Blocks | 2 | 2 | 4 | 8 |
| User I/O Pins | 34 | 34 | 66 | 96 |
| Logic Gates | 600 | 600 | 1250 | 2500 |
| Propagation Delay (tPD) | 10 ns | 10 ns | 10 ns | 10 ns |
| Supply Voltage | 3.0 V to 3.6 V (3.3 V typ.) | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| In-System Programmability | Yes (JTAG IEEE 1149.1) | Yes (JTAG) | Yes (JTAG) | Yes (JTAG) |
| Configuration Memory | CMOS EEPROM (non-volatile) | CMOS EEPROM | CMOS EEPROM | CMOS EEPROM |
Key Differentiators
- Identical silicon, lead-free terminal finish only (vs EPM3032ATC44-10N)
- 2x logic capacity in same TQFP-44 footprint (vs EPM3064ATC44-10N)
- Deterministic 10 ns tPD, non-volatile instant-on (vs Microcontroller-based logic replacement)
Design Notes
The EPM3032A-TC44-10 operates from a single 3.3 V rail (3.0 V to 3.6 V). Decouple VCC pins with 0.1 µF ceramic capacitors placed within 5 mm of each VCC pin, plus a bulk 10 µF tantalum or aluminum-polymer capacitor at the regulator output. The internal logic and I/O share the same supply rail, so noisy I/O switching (e.g., driving capacitive loads) directly couples into the core. Place a ferrite bead or RC filter between the CPLD VCC and noisy digital rails if switching noise exceeds 50 mVpp.
The EPM3032A-TC44-10 inputs are NOT 5 V tolerant. Applying 5 V signals directly to any I/O pin will damage the device. Use external level translators (74LVC245, TXS0108E) for any 5 V bus interface. Also note that all 34 user I/Os default to tri-state at power-up until the JTAG configuration is loaded — but because the EEPROM is non-volatile, configuration completes within microseconds and the I/Os latch to their programmed directions almost immediately at power-on.
Route JTAG signals (TMS, TCK, TDI, TDO) as a daisy-chain with 10 kΩ pull-ups on TMS, TCK, and TDI to VCCIO. Keep JTAG trace lengths under 100 mm and avoid routing them parallel to clock or switching-power traces to prevent programming failures. The TQFP-44 package has a thermal pad that should be soldered to a grounded copper pour for thermal dissipation, although the device typically dissipates less than 200 mW so thermal management is rarely a concern.
Compliance Information
RoHS compliance for the -10 (without N suffix) variant was not stated in the verified data — flagged as [DATA_NEEDED: RoHS compliance status]. The -10N variant (EPM3032ATC44-10N) carries an explicit lead-free terminal finish per Altera/Intel part-number convention. AEC-Q100 is not applicable — MAX 3000A is not automotive-qualified. Migration to MAX II / MAX V is recommended for active-lifecycle and RoHS-compliant new designs.
