EPM3064ATC44-4N - 64-Macrocell 3.3V CPLD, 4.5ns TQFP-44 | Altera
MPN: EPM3064ATC44-4N β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.29 | $6.29 |
| 10 | $5.66 | $56.60 |
| 100 | $4.62 | $462.00 |
| 1,000 | $4 | $4,000.00 |
| 10,000 | $3.45 | $34,500.00 |
Drop-in alternatives for EPM3064ATC44-4N β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPM3064ATC44-7N
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View Datasheet βEPM3064ATC44-4N Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Macro Cells | 64 |
| Logic Array Blocks | 2 |
| Number of I/Os | 34 |
| Dedicated Inputs | 4 |
| Usable Gates | 1,250 |
| Propagation Delay (tpd) | 4.5 ns |
| Maximum Counter Frequency | 222.2 MHz |
| Supply Voltage (VCCINT) | 3.3 V |
| I/O Supply Voltage (VCCIO) | 2.5 V or 3.3 V |
| Programmability | EEPROM, in-system programmable (JTAG) |
| JTAG Support | IEEE Std. 1149.1 (boundary-scan) and IEEE Std. 1532 (ISP) |
| Operating Temperature | 0C to +70C (commercial) |
| Package | 44-pin TQFP |
| Mounting Type | Surface Mount |
EPM3064ATC44-4N Pin Configuration
| Pin 1 | I/O β User I/O pin (function per macrocell assignment) |
| Pin 2 | I/O β User I/O pin |
| Pin 3 | I/O β User I/O pin |
| Pin 4 | I/O β User I/O pin |
| Pin 5 | I/O β User I/O pin |
| Pin 6 | GND β Ground |
| Pin 7 | I/O β User I/O pin |
| Pin 8 | I/O β User I/O pin |
| Pin 9 | I/O β User I/O pin |
| Pin 10 | I/O β User I/O pin |
| Pin 11 | I/O β User I/O pin |
| Pin 12 | GND β Ground |
| Pin 13 | I/O β User I/O pin |
| Pin 14 | I/O β User I/O pin |
| Pin 15 | TDI β JTAG Test Data In (dedicated) |
| Pin 16 | TMS β JTAG Test Mode Select (dedicated) |
| Pin 17 | TCK β JTAG Test Clock (dedicated) |
| Pin 18 | I/O β User I/O pin |
| Pin 19 | I/O β User I/O pin |
| Pin 20 | I/O β User I/O pin |
| Pin 21 | VCCINT β Core supply, 3.3 V |
| Pin 22 | GLOBAL CLK β Global clock input (dedicated) |
| Pin 23 | I/O β User I/O pin |
| Pin 24 | I/O β User I/O pin |
| Pin 25 | I/O β User I/O pin |
| Pin 26 | I/O β User I/O pin |
| Pin 27 | GND β Ground |
| Pin 28 | I/O β User I/O pin |
| Pin 29 | I/O β User I/O pin |
| Pin 30 | I/O β User I/O pin |
| Pin 31 | I/O β User I/O pin |
| Pin 32 | I/O β User I/O pin |
| Pin 33 | VCCIO β I/O supply, 2.5 V or 3.3 V |
| Pin 34 | I/O β User I/O pin |
| Pin 35 | I/O β User I/O pin |
| Pin 36 | I/O β User I/O pin |
| Pin 37 | I/O β User I/O pin |
| Pin 38 | I/O β User I/O pin |
| Pin 39 | GLOBAL CLR β Global clear input (dedicated) |
| Pin 40 | I/O β User I/O pin |
| Pin 41 | I/O β User I/O pin |
| Pin 42 | TDO β JTAG Test Data Out (dedicated) |
| Pin 43 | I/O β User I/O pin |
| Pin 44 | I/O β User I/O pin |
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
EPM3064ATC44-4N is suitable for 6 applications: Bus Decoding and Address Mapping, Asynchronous State Machine Controller, Microcontroller I/O Expansion and Glue Logic, Mixed-Voltage Level Translation Interface, Legacy 5-V System Modernization, Peripheral Chip-Select and Wait-State Generator.
Bus Decoding and Address Mapping
The EPM3064ATC44-4N fits bus-decoding and address-mapping tasks because its 64 macrocells and 34 I/Os can decode wide address or chip-select fan-out in a single non-volatile device, while its 4.5 ns tpd / 222.2 MHz fCNT comfortably meets typical memory and peripheral access windows. It is used between a microcontroller/microprocessor and a bank of peripherals (SRAM, Flash, glue logic), where the CPLD generates chip-select enables and handles wait-state insertion. The 3.3-V core with selectable 2.5-V/3.3-V VCCIO makes it easy to interface to legacy 5-V-tolerant buses via external resistors, and JTAG ISP lets engineers iterate on the address table without removing the part. Power-on is instant because the configuration is held in on-chip EEPROM.
Recommended
Asynchronous State Machine Controller
The EPM3064ATC44-4N fits asynchronous state-machine designs because its deterministic interconnect (Altera Interconnect Matrix) gives predictable, placement-independent timing - critical for asynchronous interfaces where races must be avoided. With 64 macrocells and a 4.5 ns tpd, it can implement multi-state control sequences for industrial sequencers, motor-control logic, or test-equipment state graphs. The EEPROM-based architecture means the state machine definition is retained across power cycles without external boot memory, and the JTAG interface supports on-board debug and revision updates. Compared with an FPGA, the part offers faster power-on and a smaller bill of materials for moderate-complexity control logic.
Recommended
Microcontroller I/O Expansion and Glue Logic
The EPM3064ATC44-4N fits microcontroller I/O-expansion roles because it can multiplex extra GPIOs, generate PWM waveforms, debounce inputs, and drive indicator LEDs from a single 44-pin TQFP. Its 34 user I/Os and 4 dedicated inputs provide headroom over typical MCU pin counts, while the 3.3-V VCCINT with 5-V-tolerant inputs allows direct connection to 5-V MCU buses without level shifters. The MAX 3000A family's instant-on (no boot time) and JTAG ISP make it convenient for prototyping - engineers can iterate on the logic without re-spinning the PCB. It is widely used in consumer appliances and industrial controllers where deterministic response is more important than raw logic density.
Recommended
Mixed-Voltage Level Translation Interface
The EPM3064ATC44-4N fits mixed-voltage interface-bridging applications because of its 5.0-V-tolerant inputs and selectable 2.5-V/3.3-V VCCIO outputs per the MAX 3000A datasheet. It can sit between a 5-V microcontroller and a 3.3-V peripheral bus (or between a 3.3-V MCU and 2.5-V legacy logic), translating control signals while optionally performing protocol conversion. The 4.5 ns tpd preserves timing margins for SPI, I2C, and UART bridging, and 34 I/Os are sufficient for full bus replication. This avoids dedicated level-shifter ICs when protocol logic must also be implemented, consolidating the BOM.
Recommended
Legacy 5-V System Modernization
The EPM3064ATC44-4N fits legacy 5-V-system modernization because of its 5.0-V-tolerant CMOS inputs and JTAG in-system programmability per the manufacturer datasheet. Engineers retrofitting older equipment can drop the part onto an existing 5-V bus (with input current-limit resistors as needed) to add new glue functions, monitoring, or diagnostic logic without redesigning the supply rails. The instant-on EEPROM configuration avoids boot latency, important in retrofits where predictable startup matters. Its commercial 0C to +70C range covers most indoor retrofit scenarios, and the 44-pin TQFP is hand-solderable for low-volume rebuilds.
Recommended
Peripheral Chip-Select and Wait-State Generator
The EPM3064ATC44-4N fits peripheral chip-select and wait-state generation because of its combination of 64 macrocells, 4.5 ns tpd, and the deterministic AIM interconnect per the MAX 3000A datasheet. It generates properly-timed chip-select pulses and wait-state insertions for SRAM, NOR Flash, and legacy peripherals sharing a parallel bus with a modern processor. The non-volatile EEPROM configuration means the wait-state map persists without a boot ROM, simplifying firmware bring-up. With 34 user I/Os, the device can fan out to multiple peripherals while still leaving pins for JTAG and global clocks for ongoing development.
Recommended
Recommended Products Summary
Engineering reference data for EPM3064ATC44-4N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3064ATC44-7N | EPM3064ATC44-10N | EPM3032ATC44-4N | EPM3064ALC44-4N |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | 44-pin TQFP | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same |
| Macro Cells | 64 | 64 | 64 | 32 | 64 |
| User I/Os | 34 | 34 | 34 | 34 | 34 |
| Propagation Delay (tpd) | 4.5 ns | 7.5 ns | 10 ns | 4.5 ns | 4.5 ns |
| Max Counter Frequency | 222.2 MHz | ~152 MHz | ~116 MHz | 222.2 MHz | 222.2 MHz |
| Usable Gates | 1,250 | 1,250 | 1,250 | 600 | 1,250 |
| VCCIO Flexibility | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.5 V / 3.3 V |
| JTAG ISP | Yes (IEEE 1149.1 / 1532) | Yes | Yes | Yes | Yes |
| Approx Unit Price (qty 1) | ~$6.29 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Fastest speed grade in the 44-pin TQFP MAX 3000A pinout (vs EPM3064ATC44-7N)
- Twice the logic density of the smaller MAX 3000A 44-pin TQFP variant (vs EPM3032ATC44-4N)
- Standard power grade with full speed support (vs EPM3064ALC44-4N)
Design Notes
Per the MAX 3000A datasheet, the EPM3064ATC44-4N requires a 3.3-V VCCINT supply and a separate VCCIO rail that can be tied to 2.5 V or 3.3 V depending on output logic levels. Decouple VCCINT with a 0.1 uF ceramic capacitor placed as close to the pin as possible, and add a bulk 10 uF capacitor on the supply rail. The device is 5.0-V-tolerant on inputs, but outputs must never exceed their VCCIO rail. Estimated: ICCINT typical is around 30-50 mA for a fully utilized EPM3064ATC44 design; confirm with the datasheet ICC vs frequency graph for your specific design.
Route the JTAG chain (TDI, TDO, TMS, TCK) as a clean daisy-chain from the connector to the device with stubs kept under 100 mil and a 10 kohm pull-up on TCK and TMS. Place the CPLD near the connectors it serves to minimize bus-stub length, especially for memory interfaces. The 44-pin TQFP has a 0.8 mm pitch - use 0.4 mm-wide traces between pads and at least 0.2 mm clearance to avoid solder-bridge defects at assembly.
Do not confuse the -4 speed grade with the -7 or -10 grades - the -4 is the fastest 44-pin TQFP variant (4.5 ns tpd, 222.2 MHz fCNT), so substituting a -7 or -10 in a -4 design will reduce timing margin. Also note that the EPM3064ATC44-4N is in NRND (Not Recommended for New Designs) status - for new designs, evaluate the MAX II family (e.g., EPM240T100C5N) which offers higher density, lower power, and active lifecycle support, although at the cost of a different package and pinout.
Keep the VCCINT and VCCIO planes continuous under the device and stitch grounds around the TQFP with at least one via per paddle-adjacent ground pin. JTAG signals should be length-matched within the chain. If you use the device for high-speed bus decoding, place series 33 ohm damping resistors on outputs that drive long board traces to control ringing - the 4.5 ns edge rate is fast enough to excite transmission-line effects on traces longer than ~2 inches.
Compliance Information
RoHS and REACH status were not present in the verified web data - marker added in specs[]; AEC-Q100 is not applicable because the EPM3064ATC44-4N is a commercial-grade (0C to +70C) part. Lead-free is typical for Altera MAX 3000A devices but should be confirmed against the manufacturer's material declaration.
