EPM3032ATI44-7N - MAX 3000A CPLD, 32 Macrocells, 44-TQFP | Altera
MPN: EPM3032ATI44-7N β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.5 | $7.50 |
| 10 | $6.8 | $68.00 |
| 100 | $6.1 | $610.00 |
| 500 | $5.45 | $2,725.00 |
| 1,000 | $4.9 | $4,900.00 |
Drop-in alternatives for EPM3032ATI44-7N β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPM3032ATC44-7N
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View Datasheet βEPM3032ATI44-7N Maximum Ratings & Electrical Characteristics
| Device Family | MAX 3000A |
| Logic Element Count | 600 gates |
| Macrocells | 32 |
| User I/O Pins | 34 |
| Number of Logic Array Blocks (LABs) | 4 |
| Supply Voltage (VCCINT) | 3.3 V |
| Maximum Internal Frequency | 138.9 MHz |
| Pin-to-Pin Propagation Delay (tPD) | 7.5 ns |
| Speed Grade | -7 |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Package | 44-pin TQFP |
| Mounting Type | Surface Mount |
| Programming Interface | IEEE 1149.1 JTAG (ISP) |
| Configuration Memory | Non-volatile EEPROM |
| I/O Standard Support | multiVolt (1.8 V / 2.5 V / 3.3 V) |
| RoHS Status | Compliant |
EPM3032ATI44-7N Pin Configuration
| Pin 1 | I/O β User I/O (Bank 1) |
| Pin 2 | I/O β User I/O (Bank 1) |
| Pin 3 | I/O β User I/O (Bank 1) |
| Pin 4 | I/O β User I/O (Bank 1) |
| Pin 5 | I/O β User I/O (Bank 1) |
| Pin 6 | I/O β User I/O (Bank 1) |
| Pin 7 | I/O β User I/O (Bank 1) |
| Pin 8 | I/O β User I/O (Bank 1) |
| Pin 9 | I/O β User I/O (Bank 1) |
| Pin 10 | I/O β User I/O (Bank 1) |
| Pin 11 | I/O β User I/O (Bank 1) |
| Pin 12 | I/O β User I/O (Bank 1) |
| Pin 13 | GND β Ground |
| Pin 14 | TDI β JTAG Test Data In |
| Pin 15 | TMS β JTAG Test Mode Select |
| Pin 16 | TCK β JTAG Test Clock |
| Pin 17 | TDO β JTAG Test Data Out |
| Pin 18 | I/O β User I/O (Bank 2) |
| Pin 19 | I/O β User I/O (Bank 2) |
| Pin 20 | I/O β User I/O (Bank 2) |
| Pin 21 | I/O β User I/O (Bank 2) |
| Pin 22 | I/O β User I/O (Bank 2) |
| Pin 23 | I/O β User I/O (Bank 2) |
| Pin 24 | I/O β User I/O (Bank 2) |
| Pin 25 | I/O β User I/O (Bank 2) |
| Pin 26 | I/O β User I/O (Bank 2) |
| Pin 27 | I/O β User I/O (Bank 2) |
| Pin 28 | I/O β User I/O (Bank 2) |
| Pin 29 | I/O β User I/O (Bank 2) |
| Pin 30 | I/O β User I/O (Bank 2) |
| Pin 31 | GND β Ground |
| Pin 32 | VCCINT β Core supply 3.3 V |
| Pin 33 | VCCIO β I/O supply (1.8/2.5/3.3 V) |
| Pin 34 | I/O β User I/O (Bank 2) |
| Pin 35 | I/O β User I/O (Bank 2) |
| Pin 36 | I/O β User I/O (Bank 2) |
| Pin 37 | I/O β User I/O (Bank 2) |
| Pin 38 | I/O β User I/O (Bank 2) |
| Pin 39 | I/O β User I/O (Bank 2) |
| Pin 40 | I/O β User I/O (Bank 2) |
| Pin 41 | I/O β User I/O (Bank 2) |
| Pin 42 | I/O β User I/O (Bank 2) |
| Pin 43 | I/O β User I/O (Bank 2) |
| Pin 44 | I/O β User I/O (Bank 2) |
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
EPM3032ATI44-7N is suitable for 6 applications: Industrial Glue Logic Replacement, Microcontroller Address Decoding, State-Machine Implementation, Bus-Interface Bridging, I/O Expansion for Legacy Designs, Test and Measurement Front-End Logic.
Industrial Glue Logic Replacement
The EPM3032ATI44-7N's 32 macrocells and 600 gates provide ample capacity to replace discrete 74-series TTL logic in industrial control systems. Its 7.5 ns pin-to-pin propagation delay and 138.9 MHz fMAX handle combinational and registered logic up to roughly 70 MHz external clock rates, while the industrial -40C to +85C temperature range suits factory-floor environments. The non-volatile EEPROM configuration eliminates external boot ROM, reducing board area in PLC modules, motor drives, and instrumentation front-ends.
Recommended
Microcontroller Address Decoding
The EPM3032ATI44-7N is widely used as an external address decoder for 8-bit and 16-bit microcontrollers such as the 8051, PIC, and AVR families. Its 34 user I/Os can decode up to 17 chip-select signals for memory and peripheral banks, replacing multiple 74HC138 / 74HC139 decoder ICs. With 7.5 ns tPD the decoded chip-select signals propagate before the MCU's peripheral access timing closes, ensuring glitch-free bus cycles in real-time systems.
Recommended
State-Machine Implementation
Engineers use the EPM3032ATI44-7N to implement Moore and Mealy state machines in motor-control, sensor-interface, and protocol-conversion designs. Each macrocell's dedicated flip-flop with product-term clock enable enables efficient state encoding using one-hot or Gray codes. The 138.9 MHz fMAX supports high-speed Mealy outputs for line-protocol bit-banging (SPI, I2C, UART) where deterministic tPD of 7.5 ns is critical for timing margins in industrial buses.
Recommended
Bus-Interface Bridging
The EPM3032ATI44-7N serves as a bus bridge between mismatched widths or voltages, such as converting 8-bit microcontroller buses to 16-bit peripheral buses or isolating legacy 5 V peripherals from 3.3 V processors. Its multiVolt I/O supports 1.8 V, 2.5 V, and 3.3 V output banks, while the 34 user I/Os accommodate address, data, and control signals across both buses. Industrial temperature grade suits outdoor and factory deployments.
Recommended
I/O Expansion for Legacy Designs
Designers add the EPM3032ATI44-7N as an I/O expander on the address or SPI bus of legacy processors that have insufficient native pins. The CPLD's 34 user I/Os can implement a parallel output port, debounced input port, or PWM generator without taxing the host microcontroller. The 7.5 ns tPD allows the I/O port to respond in real time to host reads/writes, while the non-volatile EEPROM ensures configuration is retained through power cycles.
Recommended
Test and Measurement Front-End Logic
The EPM3032ATI44-7N implements the front-end logic in bench instruments and data-acquisition systems: channel multiplexing, gain-stage switching, trigger conditioning, and timing generators. Its deterministic 7.5 ns propagation delay provides repeatable timing for trigger circuits, while the 138.9 MHz fMAX supports sample-clock generation for low-to-mid-rate ADCs. Industrial temperature grade allows use in environmental chambers and field-test equipment.
Recommended
Recommended Products Summary
Engineering reference data for EPM3032ATI44-7N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3032ATC44-7N | EPM3032ATC44-7 | EPM3032ATC44-4N | EPM3032ALC44-7N | EPM3032ALI44-10N |
|---|---|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (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 |
| Gates | 600 | 600 | 600 | 600 | 600 | 600 |
| Speed Grade (tPD) | 7.5 ns (-7) | 7.5 ns (-7) | 7.5 ns (-7) | 4.5 ns (-4) - faster | 7.5 ns (-7) | 10 ns (-10) - slower |
| Operating Temperature | -40C to +85C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) |
| Power Variant | Standard MAX 3000A | Standard MAX 3000A | Standard MAX 3000A | Standard MAX 3000A | Low-power MAX 3000A | Low-power MAX 3000A |
| Maximum Internal Frequency | 138.9 MHz | 138.9 MHz | 138.9 MHz | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Industrial temperature grade vs commercial siblings (vs EPM3032ATC44-7N)
- Same 44-TQFP footprint as commercial variant for design flexibility (vs EPM3032ATC44-7N)
- Higher fMAX than slower speed grades (vs EPM3032ALI44-10N)
Design Notes
Decouple VCCINT (pin 32) and VCCIO (pin 33) with a 0.1 uF ceramic capacitor placed within 5 mm of each supply pin, plus a 10 uF bulk tantalum or ceramic capacitor on each rail. Route the JTAG signals (TDI/TMS/TCK/TDO on pins 14-17) as a dedicated chain with 10 kohm pull-ups on TCK and TMS to keep the JTAG state machine in a known state during power-up; missing pull-ups cause boundary-scan errors.
The 44-pin TQFP has a 0.8 mm lead pitch, requiring precise SMT reflow profiling (peak 245C for 30 s max, ramp 1-2C/s). Use a 4-layer PCB with a continuous ground plane under the device to provide a low-impedance return path for JTAG and high-speed I/O transitions. Keep clock inputs short and impedance-controlled (50 ohm microstrip) if using the CPLD for clock generation above 50 MHz.
The 'A' suffix on EPM3032A denotes the 3.3 V MAX 3000A variant - this part does NOT tolerate 5 V on its I/O pins unless VCCIO is set to 3.3 V (5 V tolerant I/O). Do not substitute legacy 5 V MAX 3000 designs without verifying VCCIO setup. Also note that the 'I' in EPM3032ATI indicates industrial temperature - designs originally qualified for industrial range cannot use commercial 'C' variants without re-qualifying the operating envelope.
When using the EPM3032ATI44-7N as a bus bridge or address decoder, account for the 7.5 ns tPD when calculating timing margins between the host processor's chip-select and the peripheral's enable. For an MCU running a 25 MHz external bus (40 ns cycle), the CPLD adds roughly 19% propagation delay. In synchronous designs clocked above ~70 MHz external, use the -4 speed grade variant to keep timing closure achievable.
Compliance Information
RoHS and lead-free compliant per Altera/Intel product documentation. Not AEC-Q100 qualified - the part is not automotive-grade despite the industrial temperature range.
