EPM3032ALC44-7N - 32-Macrocell 7.5ns CPLD | Altera MAX 3000A
MPN: EPM3032ALC44-7N β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.71 | $1.71 |
| 10 | $1.54 | $15.40 |
| 100 | $1.38 | $138.00 |
| 500 | $1.22 | $610.00 |
| 1,000 | $1.05 | $1,050.00 |
Drop-in alternatives for EPM3032ALC44-7N β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
EPM3032ALC44-10N
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View Datasheet βEPM3032ALC-44-10N
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View Datasheet βEPM3032ALC44-7N Maximum Ratings & Electrical Characteristics
| Manufacturer | Altera (Intel) |
| Series | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Macro Cells | 32 |
| Logic Gates | 600 usable gates |
| Propagation Delay (tPD1) | 7.5 ns (max, pin-to-pin) |
| Internal Counter Frequency (fCNT) | 227.3 MHz (max) |
| Number of Logic Elements / Blocks | 2 LABs (16 macrocells each) |
| Number of I/O Pins | 34 usable I/O (44 total package pins) |
| Number of Dedicated Inputs | 4 |
| Programmable Type | In-System Programmable (ISP) via JTAG (IEEE 1149.1) |
| Memory Type | EEPROM (non-volatile, 100 program/erase cycles) |
| Supply Voltage - Internal (VCCINT) | 3.0 V to 3.6 V (3.3 V typical) |
| I/O Bank Voltage (VCCIO) | MultiVolt: 1.8 V / 2.5 V / 3.3 V / 5.0 V tolerant |
| Operating Temperature | 0C to +70C (commercial grade) |
| Package | 44-PLCC (J-Lead, 16.59 x 16.59 mm) |
| Mounting Type | Surface Mount (PLCC socket compatible) |
| MSL Level | 3 (168 hours) |
| Process Technology | CMOS EEPROM |
EPM3032ALC44-7N Pin Configuration
| Pin 1 | I/O β General-purpose I/O (macrocell 1) |
| Pin 2 | I/O β General-purpose I/O (macrocell 2) |
| Pin 3 | I/O β General-purpose I/O (macrocell 3) |
| Pin 4 | I/O β General-purpose I/O (macrocell 4) |
| Pin 5 | I/O β General-purpose I/O (macrocell 5) |
| Pin 6 | I/O β General-purpose I/O (macrocell 6) |
| Pin 7 | I/O β General-purpose I/O (macrocell 7) |
| Pin 8 | I/O β General-purpose I/O (macrocell 8) |
| Pin 9 | I/O β General-purpose I/O (macrocell 9) |
| Pin 10 | GND β Ground |
| Pin 11 | I/O β General-purpose I/O (macrocell 10) |
| Pin 12 | I/O β General-purpose I/O (macrocell 11) |
| Pin 13 | I/O β General-purpose I/O (macrocell 12) |
| Pin 14 | I/O β General-purpose I/O (macrocell 13) |
| Pin 15 | TDI β JTAG Test Data In |
| Pin 16 | TMS β JTAG Test Mode Select |
| Pin 17 | TCK β JTAG Test Clock |
| Pin 18 | I/O β General-purpose I/O (macrocell 14) |
| Pin 19 | I/O β General-purpose I/O (macrocell 15) |
| Pin 20 | I/O β General-purpose I/O (macrocell 16) |
| Pin 21 | VCCINT β Internal core supply (3.3 V) |
| Pin 22 | I/O β General-purpose I/O (macrocell 17) |
| Pin 23 | I/O β General-purpose I/O (macrocell 18) |
| Pin 24 | I/O β General-purpose I/O (macrocell 19) |
| Pin 25 | I/O β General-purpose I/O (macrocell 20) |
| Pin 26 | I/O β General-purpose I/O (macrocell 21) |
| Pin 27 | GND β Ground |
| Pin 28 | I/O β General-purpose I/O (macrocell 22) |
| Pin 29 | I/O β General-purpose I/O (macrocell 23) |
| Pin 30 | I/O β General-purpose I/O (macrocell 24) |
| Pin 31 | I/O β General-purpose I/O (macrocell 25) |
| Pin 32 | I/O β General-purpose I/O (macrocell 26) |
| Pin 33 | I/O β General-purpose I/O (macrocell 27) |
| Pin 34 | INPUT/GCLK β Dedicated input / Global clock |
| Pin 35 | INPUT/OE1 β Dedicated input / Output enable 1 |
| Pin 36 | INPUT/OE2/GCLK2 β Dedicated input / Output enable 2 / Global clock 2 |
| Pin 37 | INPUT/CLR β Dedicated input / Clear |
| Pin 38 | VCCIO β I/O bank supply (1.8/2.5/3.3/5.0 V) |
| Pin 39 | I/O β General-purpose I/O (macrocell 28) |
| Pin 40 | I/O β General-purpose I/O (macrocell 29) |
| Pin 41 | I/O β General-purpose I/O (macrocell 30) |
| Pin 42 | I/O β General-purpose I/O (macrocell 31) |
| Pin 43 | TDO β JTAG Test Data Out |
| Pin 44 | VCCIO β I/O bank supply (1.8/2.5/3.3/5.0 V) |
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
EPM3032ALC44-7N is suitable for 6 applications: Address Decoding for Microprocessor Systems, Glue Logic Replacement (74-series TTL Consolidation), Bus Arbitration and Interface Bridging, LED Display Multiplexing and Scanning, Power-Up Sequencing Controllers, State Machine Controllers for Industrial Control.
Address Decoding for Microprocessor Systems
The EPM3032ALC44-7N is widely deployed as the central address decoder for 8-bit and 16-bit microprocessor boards, replacing four to eight discrete 74LS138/74HC138 decoder ICs with a single programmable device. Its 32 macrocells easily handle chip-select logic for 8-16 peripheral devices including SRAM, Flash, UARTs, and timers. The 7.5 ns propagation delay is fast enough to meet 8 ns 16 MHz bus timing, and the non-volatile EEPROM configuration means address maps are loaded instantly at power-on without boot code. JTAG ISP allows in-system address-map updates during prototype bring-up without removing the chip from its PLCC socket.
Recommended
Glue Logic Replacement (74-series TTL Consolidation)
The EPM3032ALC44-7N is the canonical solution for replacing three to seven discrete 74LS/74HC/74F TTL packages (gates, muxes, flip-flops, latches, comparators) with a single 32-macrocell CPLD. With 34 usable I/O pins, it offers generous headroom for typical glue-logic blocks, and the 7.5 ns tPD is faster than the 9-15 ns typical delays of equivalent 74LS/74HC discrete gates. The non-volatile EEPROM eliminates pull-up/down resistors on configuration pins and provides true instant-on behavior with no FPGA-style configuration loading time. MultiVolt I/O lets the same CPLD interface directly with both 5 V legacy peripherals and 3.3 V modern ASICs.
Recommended
Bus Arbitration and Interface Bridging
The EPM3032ALC44-7N is frequently used as a bus arbiter or interface bridge between mismatched buses (e.g., ISA-to-local bus, I2C-to-parallel, or 5 V-to-3.3 V level translation) in industrial controller designs. Its MultiVolt I/O banks directly accept 5 V inputs on a 3.3 V VCCINT supply, eliminating external level-shifter ICs. The 7.5 ns tPD adds less than one clock cycle of latency at typical 33 MHz bus speeds, and the deterministic timing of the PIA-based interconnect simplifies worst-case timing analysis for arbitration handshakes. JTAG ISP permits late-stage design fixes without board rework.
Recommended
LED Display Multiplexing and Scanning
For 7-segment LED displays, dot-matrix panels, and bar-graph indicators in industrial HMIs, the EPM3032ALC44-7N provides a compact refresh controller that handles row/column scanning, BCD-to-7-segment decoding, and brightness PWM in one device. The 7.5 ns tPD supports multiplexing rates above 1 kHz, eliminating visible flicker, and the 32 macrocells can drive up to 16 multiplexed digit pairs plus button-debounce logic. The MultiVolt I/O directly drives 5 V LED segments without external transistors, and the non-volatile configuration means the display pattern is retained through power cycles without microcontroller intervention.
Recommended
Power-Up Sequencing Controllers
The EPM3032ALC44-7N serves as a deterministic power-up sequencer in multi-rail systems, providing 32 independently-timed enable outputs that ramp supplies in the correct order to prevent latch-up in processors, FPGAs, and ASICs. Its non-volatile EEPROM means sequencing begins within 7.5 ns of VCCINT reaching the supply threshold, far faster than any microcontroller-based sequencer that must boot from Flash. The MultiVolt I/O directly interfaces with 3.3 V and 5.0 V power-good signals from regulators without level shifting. JTAG ISP allows sequencing tables to be updated during EMC compliance testing.
Recommended
State Machine Controllers for Industrial Control
In PLC-style controllers and industrial automation boards, the EPM3032ALC44-7N implements Moore/Mealy state machines that drive solenoid valves, motor contactors, and safety interlocks. Its 32 macrocells easily encode 16-32 state machines, each with multiple inputs and outputs. The deterministic PIA-based interconnect provides guaranteed worst-case 7.5 ns tPD regardless of state-machine complexity, critical for safety-rated designs where timing must be proven. Non-volatile EEPROM configuration means the state machine resumes correctly after power interruption with no MCU reboot delay, and JTAG ISP allows field updates for new process recipes.
Recommended
Recommended Products Summary
Engineering reference data for EPM3032ALC44-7N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3032ALC44-10N | EPM3032ALC44-4N | EPM3032ALC44-7 |
|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | 44-PLCC (J-Lead) | 44-PLCC (J-Lead) - same | 44-PLCC (J-Lead) - same | 44-PLCC (J-Lead) - same |
| Pin-to-Pin Delay (tPD1) | 7.5 ns | 10 ns | 4.5 ns | 7.5 ns |
| Internal Counter Frequency | 227.3 MHz | 192.3 MHz | 285.7 MHz | 227.3 MHz |
| Macro Cells | 32 | 32 | 32 | 32 |
| Usable Gates | 600 | 600 | 600 | 600 |
| Usable I/O Pins | 34 | 34 | 34 | 34 |
| Supply Voltage (VCCINT) | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Programming Interface | JTAG (IEEE 1149.1) ISP | JTAG (IEEE 1149.1) ISP | JTAG (IEEE 1149.1) ISP | JTAG (IEEE 1149.1) ISP |
| Lead-Free (N suffix) | Yes (Pb-free) | Yes (Pb-free) | Yes (Pb-free) | No (Pb-bearing) |
Key Differentiators
- Mid-tier speed grade balances cost and timing margin (vs EPM3032ALC44-4N)
- Pb-free N suffix for RoHS-compliant production (vs EPM3032ALC44-7)
- MAX 3000A non-volatile instant-on configuration (vs EPM240T100C5N (MAX II))
Design Notes
The EPM3032ALC44-7N requires two separate supply rails: VCCINT (3.0-3.6 V for the internal core) and VCCIO (1.8 V/2.5 V/3.3 V/5.0 V for the I/O banks). Decouple each VCCINT and VCCIO pin with a 100 nF ceramic capacitor placed within 5 mm of the package pin, plus a bulk 10 uF tantalum capacitor near the device. The MultiVolt VCCIO allows direct interface with 5 V peripherals; ensure VCCIO matches the driven peripheral's logic level to avoid back-feeding current through the I/O ESD diodes.
All unused I/O pins MUST be connected to a defined logic level (either GND or VCCIO) to prevent them from floating into the linear region and drawing excess Icco supply current. Configure them as outputs driving low in the Quartus/MAX+PLUS II assignment editor. Additionally, ensure JTAG pins TDI, TMS, TCK, and TRST are pulled to a defined logic level when JTAG is not in use β floating TCK can cause unintended state transitions in the TAP controller.
Place the EPM3032ALC44-7N so that JTAG chain access (TDI/TDO/TCK/TMS/TRST) is reachable from a 4-pin header or boundary-scan test point for in-system programming. Keep JTAG trace lengths under 100 mm to avoid signal-integrity issues at TCK frequencies above 10 MHz. For the 44-PLCC package, route all VCCINT and GND pins with at least 0.5 mm-wide traces or via-stitching to inner power/ground planes to maintain stable supply during ISP programming.
Compliance Information
Pb-free 'N' suffix indicates lead-free terminal finish. RoHS, REACH, halogen-free, and conflict-minerals compliance status not stated in the verified distributor listings; consult the manufacturer declaration letter for definitive EU regulatory compliance.
