EPM3032ATC44-7N - MAX 3000A CPLD, 32 Macrocells, 7.5ns, 44-TQFP
MPN: EPM3032ATC44-7N ⚠ Last Time Buy| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.18 | $41.80 |
| 100 | $3.71 | $371.00 |
| 500 | $3.25 | $1,625.00 |
| 1,000 | $2.88 | $2,880.00 |
EPM3032ATC44-7N Overview
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that combines multiple PAL/GAL-like macrocells on a single chip with a programmable interconnect matrix. In the broader taxonomy, the EPM3032ATC44-7N belongs to: CPLD -> programmable logic device (PLD) -> logic IC -> digital semiconductor -> integrated circuit. Unlike SRAM-based FPGAs that require a boot configuration memory, MAX 3000A CPLDs store their configuration in on-chip EEPROM, so they boot instantly with their logic image retained through power cycles.
Key features include 3.3V core and I/O operation with multi-voltage I/O support (2.5V, 3.3V, or 5.0V), in-system programmability (ISP) via the IEEE Std. 1149.1 JTAG interface, and CMOS EEPROM-based configuration memory that retains logic without external boot devices. The 7.5ns pin-to-pin delay (tPD) makes this part suitable for glue-logic replacement, address decoding, and bus-interface bridging where deterministic timing is required.
Architecturally, the MAX 3000A family uses a classic Logic Array Block (LAB) structure, with each LAB containing 16 macrocells. The 2 LABs in the EPM3032ATC44-7N communicate through a programmable interconnect array (PIA), and each macrocell includes a programmable-AND/fixed-OR array with a flip-flop, supporting both combinatorial and registered logic implementation. MultiVolt I/O pins allow interfacing with 2.5V, 3.3V, or 5.0V peripherals from a single 3.3V supply.
Typical applications include bus decoding and address latch replacement, glue-logic integration for ASIC/FPGA systems, I/O expansion for microcontrollers, JTAG-driven boundary-scan implementations, and 5V-to-3.3V level translation. The 34 I/O pins and JTAG ISP capability make it especially attractive for legacy designs and brownfield retrofits.
When designing with this part, pay attention to the difference between VCCINT (core supply) and VCCIO (I/O supply) - the device supports mixed-voltage I/O so VCCIO can be set independently. The 7.5ns tPD grade is the slowest in the EPM3032A family; choose a faster -4 or -5 grade part only if timing closure demands it.
This page synthesizes distributor pricing, drop-in alternatives from the same MAX 3000A family, and practical design notes not consolidated in the original Altera datasheet, giving engineers a single decision-ready reference.
Drop-in alternatives for EPM3032ATC44-7N — 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 EPM3032ATC44-7N (same form factor and footprint) — differing in Programming Interface, Configuration Memory, RoHS Status, Operating Temperature, In-System Programmability.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM3032ATC44-7
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View Datasheet →EPM3032ATC44-4N
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View Datasheet →EPM3032ATC44-10N
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View Datasheet →EPM3032ATC44-10NAA
✅ Drop-In ⚠️ 参数待验证✓ In Stock
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View Datasheet →EPM3032ATC44-10NAB
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View Datasheet →EPM3032ATC44-4
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View Datasheet →EPM3032ATC44-7N Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Logic Elements / Macrocells | 32 macrocells |
| Logic Array Blocks | 2 LABs |
| Usable Gates | 600 gates |
| Number of User I/O Pins | 34 |
| Propagation Delay (tPD) | 7.5 ns |
| Maximum Internal Frequency | 138.9 MHz |
| Core Supply Voltage (VCCINT) | 3.3 V |
| I/O Supply Voltage (VCCIO) | 2.5 V / 3.3 V / 5.0 V (MultiVolt I/O) |
| Configuration Memory | EEPROM (non-volatile) |
| Programming Interface | JTAG (IEEE Std. 1149.1) ISP |
| Package | 44-TQFP |
| Mounting Type | Surface Mount |
| Operating Temperature | 0 C to +70 C (commercial) |
| Process Technology | CMOS |
| RoHS Status | Compliant |
EPM3032ATC44-7N Pin Configuration
| Pin 1 | I/O — User I/O pin (programmable as input, output, or bidirectional) |
| 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 | GCLK1 — Global clock input 1 |
| 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 | GND — Ground |
| Pin 22 | I/O — User I/O pin |
| 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 (IEEE 1149.1) |
| Pin 31 | I/O — User I/O pin |
| Pin 32 | GND — Ground |
| Pin 33 | I/O — User I/O pin |
| Pin 34 | I/O — User I/O pin |
| Pin 35 | VCCIO — I/O supply voltage (2.5V / 3.3V / 5.0V MultiVolt) |
| Pin 36 | I/O — User I/O pin |
| Pin 37 | I/O — User I/O pin |
| Pin 38 | TMS — JTAG Test Mode Select (IEEE 1149.1) |
| Pin 39 | GCLRn — Global clear input (active low) |
| Pin 40 | TCK — JTAG Test Clock (IEEE 1149.1) |
| Pin 41 | TDO — JTAG Test Data Out (IEEE 1149.1) |
| Pin 42 | I/O — User I/O pin |
| Pin 43 | VCCINT — Core supply voltage (3.3V) |
| Pin 44 | I/O — User I/O pin |
Typical Applications
EPM3032ATC44-7N is suitable for 6 applications: Address Decoding and Bus Interface Bridging, ASIC/FPGA Glue Logic Replacement, JTAG-Based Boundary Scan and Test Infrastructure, 5V to 3.3V Level Translation and I/O Expansion, Industrial Control and Legacy Brownfield Retrofits, Legacy Peripheral Replacement for Discontinued 74-series Logic.
Address Decoding and Bus Interface Bridging
The EPM3032ATC44-7N's 32 macrocells and 7.5 ns tPD make it well-suited for address decoding between a microcontroller/ASIC and external memory or peripheral buses. With 34 user I/Os and MultiVolt I/O (2.5V/3.3V/5.0V), a single 3.3V CPLD can decode chip-select lines for SRAM, Flash, and peripherals running at mixed voltages without external level shifters. The deterministic 7.5 ns tPD allows designers to budget decode timing with tight margin against the host bus access window, replacing several 74-series TTL glue-logic chips with a single reconfigurable device.
Recommended
ASIC/FPGA Glue Logic Replacement
When an FPGA or ASIC needs a handful of 'missing' logic functions - interrupt steering, reset conditioning, watchdog timing, or simple state machines - the EPM3032ATC44-7N is a textbook choice. Its non-volatile EEPROM configuration means the part boots instantly with no external boot PROM, and the JTAG ISP interface lets engineers iterate on logic without re-spinning the board. The 600 usable gates and 32 macrocells are typically enough to absorb 5-10 SSI/MSI glue functions, reducing BOM cost and board area in mature designs.
Recommended
JTAG-Based Boundary Scan and Test Infrastructure
The built-in IEEE 1149.1 JTAG interface of the EPM3032ATC44-7N makes it useful as a JTAG-controlled I/O expander or scan-chain bridge in board-test architectures. The CPLD's I/O pins can be configured to drive relays, LEDs, or test points under JTAG command, simplifying factory test fixtures. Because MAX 3000A devices are ISP via JTAG, the same scan chain used for boundary scan can also load configuration into the CPLD, eliminating separate programming headers.
Recommended
5V to 3.3V Level Translation and I/O Expansion
The EPM3032ATC44-7N's MultiVolt I/O lets it bridge 5.0V peripherals to a 3.3V microcontroller without external level-shifters, since each I/O bank can independently run at 2.5V, 3.3V, or 5.0V. In legacy retrofits where a 5V DSP or sensor bus must talk to a modern 3.3V MCU, the CPLD acts as both a level translator and an I/O expander, replacing discrete 74LVC/74HCT buffers and saving PCB area. With 34 I/Os available, up to 17 bidirectional 5V-to-3.3V translation channels fit in a single 44-TQFP.
Recommended
Industrial Control and Legacy Brownfield Retrofits
For long-life-cycle industrial controllers where a board must interface with 5V and 3.3V mixed-logic signals, the EPM3032ATC44-7N provides a stable, non-volatile logic platform with predictable timing. Industrial control cabinets often house 24V/5V/3.3V signal domains simultaneously, and the MultiVolt I/O capability lets one CPLD span all three. The commercial 0-70 C temperature range covers most factory-floor enclosures, and the JTAG ISP interface allows in-field firmware updates via handheld programmers.
Recommended
Legacy Peripheral Replacement for Discontinued 74-series Logic
When 74-series TTL or CMOS glue-logic parts are end-of-life, the EPM3032ATC44-7N can absorb a dozen discrete gates into a single programmable device, preserving the original board's functionality without re-routing. Designers can drop in the same 44-TQFP footprint with the same I/O pinout as the original logic cluster, then map their old Boolean equations into the 32 macrocells using Quartus or MAX+PLUS II. The non-volatile EEPROM means no configuration bitstream is required at power-up, so timing matches discrete-IC behavior closely.
Recommended
Recommended Products Summary
Engineering reference data for EPM3032ATC44-7N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3032ATC44-7 | EPM3032ATC44-4N | EPM3032ATC44-10N | EPM3032ATC44-10NAA | EPM3032ATC44-10NAB | EPM3032ATC44-4 |
|---|---|---|---|---|---|---|---|
| Package | 44-TQFP | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same |
| Brand | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) |
| Propagation Delay (tPD) | 7.5 ns | 7.5 ns (same) | 4 ns (faster) | 10 ns (slower) | 10 ns | 10 ns | 4 ns (faster) |
| Macrocells | 32 | 32 (same) | 32 (same) | 32 (same) | 32 (same) | 32 (same) | 32 (same) |
| User I/O Pins | 34 | 34 (same) | 34 (same) | 34 (same) | 34 (same) | 34 (same) | 34 (same) |
| RoHS Status | RoHS compliant (Pb-free) | Non-RoHS (SnPb) | RoHS compliant | RoHS compliant | RoHS compliant | RoHS compliant | Non-RoHS (SnPb) |
| Operating Temperature | 0 C to +70 C (commercial) | 0 C to +70 C | 0 C to +70 C | 0 C to +70 C | 0 C to +70 C | 0 C to +70 C | 0 C to +70 C |
| Programming Interface | JTAG (IEEE 1149.1) ISP | JTAG ISP (same) | JTAG ISP (same) | JTAG ISP (same) | JTAG ISP (same) | JTAG ISP (same) | JTAG ISP (same) |
Key Differentiators
- Faster tPD than EPM3032ATC44-10N variant (vs EPM3032ATC44-10N)
- RoHS-compliant versus non-RoHS EPM3032ATC44-7 (vs EPM3032ATC44-7)
- Non-volatile EEPROM configuration versus SRAM-based FPGAs (vs Generic SRAM-based FPGAs of similar gate count)
Design Notes
The EPM3032ATC44-7N requires separate VCCINT and VCCIO supplies. VCCINT is fixed at 3.3 V for the core and EEPROM configuration memory; VCCIO can be independently tied to 2.5 V, 3.3 V, or 5.0 V depending on the I/O voltage domain the CPLD must interface with. Decouple each VCCINT/VCCIO pin with a 0.1 uF ceramic capacitor placed as close to the package pin as possible, and add a bulk 10 uF tantalum or ceramic near the package. Power sequencing is not required because EEPROM configuration boots independently of the I/O voltage.
Do not confuse the EPM3032ATC44-7N (commercial temperature, 7.5 ns tPD, RoHS) with the EPM3032ATC44-10N (10 ns tPD), EPM3032ATC44-4N (4 ns tPD), or the EPM3032ATC44-7 (SnPb non-RoHS). All four share the same 44-TQFP pinout so a 7.5 ns part will mechanically fit a -4N or -10N footprint, but speed-grade mismatches change timing closure. For new designs, choose the speed grade that meets your timing budget at the lowest cost, not the fastest grade by default.
Route the four JTAG signals (TDI, TDO, TMS, TCK) to a 4-pin header or boundary-scan chain connector with impedance-controlled traces, and place a 10 kohm pull-up on TMS and TCK per IEEE 1149.1. Keep JTAG traces short (<50 mm) and avoid routing them next to high-speed switching signals because the JTAG clock can pick up coupling noise. GCLK1 (pin 12) and GCLRn (pin 39) should be treated as critical clock/reset nets with short, guarded routing.
Estimated: At maximum toggle activity on all 34 I/Os at 100 MHz with 50 pF load, the EPM3032ATC44-7N dissipates roughly 200 mW (typical CMOS CPLD switching power). The 44-TQFP package has theta_JA around 55 C/W in still air, giving a junction-temperature rise of approximately 11 C above ambient - well within the 0 C to +70 C commercial range. No heatsink is required, but adequate PCB copper pour on the ground pins is recommended for thermal spreading.
Compliance Information
RoHS compliant per the trailing 'N' in the part number indicating Pb-free lead finish. AEC-Q100 is not applicable - the part is commercial-grade (0 C to +70 C) and not automotive-qualified. REACH compliance is declared by Altera/Intel at the family level.
