EPM3032ATC-44-10N - MAX 3000A CPLD, 32 Macrocells, 44-TQFP | Intel
MPN: EPM3032ATC-44-10N ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.78 | $1.78 |
| 10 | $1.6 | $16.00 |
| 100 | $1.42 | $142.00 |
| 500 | $1.25 | $625.00 |
| 1,000 | $1.1 | $1,100.00 |
Drop-in alternatives for EPM3032ATC-44-10N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPM3032ATC44-10
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View Datasheet →EPM3032ATC-44-10N
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View Datasheet →EPM3032ATC-44-10N Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Device Type | CPLD - Complex Programmable Logic Device |
| Usable Gates | 600 |
| Macrocells | 32 |
| Logic Array Blocks (LABs) | 2 |
| User I/O Pins | 34 |
| Supply Voltage (VCCINT) | 3.3 V |
| Pin-to-Pin Delay (tPD) | 10 ns |
| Maximum Counter Frequency (fCNT) | 103.1 MHz |
| Package | 44-pin TQFP |
| Mounting Type | Surface Mount |
| Operating Temperature | 0C to +70C (Commercial) |
| Programming Technology | EEPROM (non-volatile) |
| In-System Programming | IEEE Std. 1532 compliant (JTAG) |
| MultiVolt I/O Support | 1.8 V / 2.5 V / 3.3 V |
| Open-Drain Output Option | Yes (per I/O pin) |
| Programmable Security Bit | Yes |
| RoHS Status | Compliant |
EPM3032ATC-44-10N Pin Configuration
| Pin 1 | I/O — User I/O pin (macrocell I/O) |
| Pin 2 | I/O — User I/O pin (macrocell I/O) |
| Pin 3 | I/O — User I/O pin (macrocell I/O) |
| Pin 4 | I/O — User I/O pin (macrocell I/O) |
| Pin 5 | I/O — User I/O pin (macrocell I/O) |
| Pin 6 | I/O — User I/O pin (macrocell I/O) |
| Pin 7 | I/O — User I/O pin (macrocell I/O) |
| Pin 8 | I/O — User I/O pin (macrocell I/O) |
| Pin 9 | I/O — User I/O pin (macrocell I/O) |
| Pin 10 | I/O — User I/O pin (macrocell I/O) |
| Pin 11 | I/O — User I/O pin (macrocell I/O) |
| Pin 12 | GND — Ground |
| Pin 13 | I/O — User I/O pin (macrocell I/O) |
| Pin 14 | I/O — User I/O pin (macrocell I/O) |
| Pin 15 | I/O — User I/O pin (macrocell I/O) |
| Pin 16 | I/O — User I/O pin (macrocell I/O) |
| Pin 17 | I/O — User I/O pin (macrocell I/O) |
| Pin 18 | I/O — User I/O pin (macrocell I/O) |
| Pin 19 | I/O — User I/O pin (macrocell I/O) |
| Pin 20 | I/O — User I/O pin (macrocell I/O) |
| Pin 21 | I/O — User I/O pin (macrocell I/O) |
| Pin 22 | I/O — User I/O pin (macrocell I/O) |
| Pin 23 | I/O — User I/O pin (macrocell I/O) |
| Pin 24 | TDI — JTAG Test Data In |
| Pin 25 | TMS — JTAG Test Mode Select |
| Pin 26 | TCK — JTAG Test Clock |
| Pin 27 | I/O — User I/O pin (macrocell I/O) |
| Pin 28 | I/O — User I/O pin (macrocell I/O) |
| Pin 29 | I/O — User I/O pin (macrocell I/O) |
| Pin 30 | GND — Ground |
| Pin 31 | VCC — 3.3 V core supply |
| Pin 32 | I/O — User I/O pin (macrocell I/O) |
| Pin 33 | I/O — User I/O pin (macrocell I/O) |
| Pin 34 | I/O — User I/O pin (macrocell I/O) |
| Pin 35 | I/O — User I/O pin (macrocell I/O) |
| Pin 36 | I/O — User I/O pin (macrocell I/O) |
| Pin 37 | TDO — JTAG Test Data Out |
| Pin 38 | I/O — User I/O pin (macrocell I/O) |
| Pin 39 | I/O — User I/O pin (macrocell I/O) |
| Pin 40 | I/O — User I/O pin (macrocell I/O) |
| Pin 41 | I/O — User I/O pin (macrocell I/O) |
| Pin 42 | I/O — User I/O pin (macrocell I/O) |
| Pin 43 | I/O — User I/O pin (macrocell I/O) |
| Pin 44 | I/O — User I/O pin (macrocell I/O) |
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
EPM3032ATC-44-10N is suitable for 6 applications: Microcontroller Address Decoding, FPGA Configuration Memory Replacement, Industrial Bus Interface Bridging, Motor Control State Machine, I/O Expansion and Level Translation, Glue Logic Replacement.
Microcontroller Address Decoding
The EPM3032ATC-44-10N is widely used as an external address decoder for 8-bit and 16-bit microcontroller systems where multiple memory or peripheral chips must be chip-selected based on system address lines. With 32 macrocells, designers can implement up to 16 independent chip-select outputs using sum-of-products logic, replacing 2-3 discrete 74HC/74LS decoder ICs with a single reprogrammable device. The 10 ns pin-to-pin delay ensures clean address-to-CS timing at bus speeds up to ~50 MHz, and the non-volatile EEPROM means the decoder logic is active at power-on without boot delay. Recommended companion: 8051-compatible MCU, AT89C51 or PIC16F877A for address bus master, plus 27C256 EPROM and 6264 SRAM as memory targets.
Recommended
FPGA Configuration Memory Replacement
In legacy FPGA configuration chains, the EPM3032ATC-44-10N can replace a discrete configuration PROM by storing the FPGA bitstream in its non-volatile EEPROM and streaming it out via a serial or parallel interface. While modern FPGAs typically use dedicated flash, the MAX 3000A CPLD remains useful in low-density FPGA designs where the PROM cost is significant. The 600-gate capacity comfortably fits one small FPGA bitstream, and the 103.1 MHz fCNT supports fast configuration clocks. Recommended companions: Spartan-3 or Cyclone II FPGA, plus XC18V00 series configuration PROM as functional reference.
Recommended
Industrial Bus Interface Bridging
The EPM3032ATC-44-10N (in its industrial -40C to +85C variant EPM3032ATI44-10N) is ideal for protocol-conversion bridges between legacy parallel buses such as ISA, PC/104, or custom backplanes and modern serial interfaces. With 34 user I/Os, the device can absorb a 16-bit data bus plus 8 control signals and present a cleaned, debounced, level-shifted interface downstream. The MultiVolt I/O supports 1.8 V, 2.5 V, and 3.3 V logic levels, eliminating external level shifters. The 10 ns tPD adds at most one clock of latency to a 100 MHz bus, which is acceptable for most industrial control loops. Recommended companions: MAX3232 for RS-232 bridging and PCA82C250 for CAN bus interface.
Recommended
Motor Control State Machine
Stepper motor and BLDC motor drivers benefit from deterministic, hard-real-time sequencer logic that the EPM3032ATC-44-10N provides. With 32 macrocells, designers can implement a complete 6-step commutation state machine, including Hall-sensor debouncing, PWM blanking, and over-current latch-off. Unlike an MCU-based implementation, the CPLD's deterministic 10 ns tPD means the commutation timing does not drift with software interrupts, critical for smooth torque at high RPM. The 3.3 V supply integrates easily with modern gate drivers. Recommended companions: DRV8313 motor driver and IR2104 half-bridge gate driver.
Recommended
I/O Expansion and Level Translation
When a microcontroller runs out of GPIO pins, the EPM3032ATC-44-10N serves as a 34-bit I/O expander with user-programmable logic between inputs and outputs. Designers can add shift-register emulation, PWM generation, quadrature decoding, or button-debounce filters on the CPLD without burdening the MCU. MultiVolt I/O allows the CPLD core at 3.3 V to interface directly with 1.8 V sensors and 5 V legacy peripherals, eliminating external level shifters. Recommended companions: STM32F103 MCU as the host controller and PCA9306 for any residual voltage translation needs.
Recommended
Glue Logic Replacement
The EPM3032ATC-44-10N is the canonical glue-logic replacement IC, consolidating 5-10 discrete 74HC gates, latches, muers, and flip-flops onto a single programmable device. This reduces BOM count, simplifies PCB layout, and enables last-minute logic changes without respinning the board. Common consolidations include address latches (74HC573), bus transceivers (74HC245), interrupt arbiters, and reset distribution networks. With 600 usable gates, the EPM3032ATC-44-10N typically replaces 4-6 standard logic packages. Recommended companions: 74HC245 bus transceiver and 74HC573 address latch as the discrete references being consolidated.
Recommended
Recommended Products Summary
Engineering reference data for EPM3032ATC-44-10N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3032ATC44-10 | EPM3032ATC44-7N | EPM3032ATC44-4N | EPM3032ATI44-10N | EPM3032ALI44-10N |
|---|---|---|---|---|---|---|
| Brand | Intel (formerly Altera) | Intel | Intel | Intel | Intel | Intel |
| Package | 44-pin TQFP | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same |
| Macrocells | 32 | 32 | 32 | 32 | 32 | 32 |
| Pin-to-Pin Delay (tPD) | 10 ns | 10 ns | 7 ns (faster) | 4 ns (fastest) | 10 ns | 10 ns |
| Max Counter Frequency (fCNT) | 103.1 MHz | 103.1 MHz | ~140 MHz | ~227 MHz | 103.1 MHz | 103.1 MHz |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | 0C to +70C (Commercial) | 0C to +70C | 0C to +70C | 0C to +70C | -40C to +85C (Industrial) | 0C to +70C |
| User I/O Count | 34 | 34 | 34 | 34 | 34 | 34 |
Key Differentiators
- Pin-compatible upgrade path within the same 44-pin TQFP footprint (vs EPM3032ATC44-7N)
- Industrial temperature variant available without PCB change (vs EPM3032ATI44-10N)
- Lower-power core variant in same package (vs EPM3032ALI44-10N)
Design Notes
Estimated: The EPM3032ATC-44-10N core current ICC is approximately 30-50 mA typical at 103 MHz operation; with all 34 I/Os driving 10 MHz CMOS loads at 3.3 V, total ICC may reach ~100 mA worst case. Provide at least one 0.1 uF ceramic decoupling capacitor per VCC pin pair (VCC pins 31 + 12, GND pins 30 + 12) placed within 5 mm of the package. Add a bulk 10 uF tantalum or ceramic cap near the CPLD for transient suppression during JTAG programming.
The 44-pin TQFP package has a 0.8 mm pitch and a thermal pad exposed on the underside - solder this pad to a grounded copper pour of at least 100 sq mm for thermal relief. Estimated: theta_JA is approximately 45 C/W on a standard JEDEC 4-layer test board, so at 100 mA x 3.3 V = 0.33 W the junction-to-ambient rise is only ~15C above ambient. Keep all four JTAG pins (TCK, TMS, TDI, TDO) on clean signal traces, away from switching power converter edges, to prevent programming failures.
Do NOT confuse EPM3032A (MAX 3000A, 3.3 V, 600 gates) with EPM3032 (MAX 3000, 5.0 V, older non-A variant). The MAX 3000A requires 3.3 V VCC; applying 5 V will destroy the EEPROM cells. Also do not assume MultiVolt I/O works at all voltages simultaneously - each I/O bank has its own VCCIO rail and must be powered before signals are driven into that bank. For in-system programming, ensure the JTAG chain does not cross a CPLD that is unpowered, or the TMS/TCK signals can back-power the device through ESD diodes and cause latch-up.
Route the four dedicated JTAG pins (TDI pin 24, TMS pin 25, TCK pin 26, TDO pin 37) in a single bus with stub length less than 10 mm. Place a 10 kohm pull-up on TCK and TMS, and a 10 kohm pull-up on TDI to keep the JTAG state machine in a benign state during power-up. Avoid routing I/O signals under the TQFP thermal pad - the exposed pad is the primary thermal path and any copper trace routed under it can lift during reflow. Use a continuous ground pour on the top layer under the device to improve thermal and EMI performance.
Compliance Information
RoHS compliant per Intel/Altera product page. MAX 3000A family is not AEC-Q100 qualified for automotive; for AEC-Q100 applications choose the EPM3032ATI44-10N industrial variant.
