EPM3064ATC44-10NAF - 64-Macrocell MAX 3000A CPLD, 10ns TQFP-44 | Intel
MPN: EPM3064ATC44-10NAF ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.49 | $9.49 |
| 10 | $8.55 | $85.50 |
| 100 | $7.25 | $725.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.05 | $5,050.00 |
Drop-in alternatives for EPM3064ATC44-10NAF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPM3064ATC44-10N
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View Datasheet →EPM3064ATC44-10NAF Maximum Ratings & Electrical Characteristics
| Series | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Macro Cells | 64 |
| Logic Elements / LABs | 4 LABs (16 macrocells per LAB) |
| Usable Gates | 1250 |
| Number of I/O Pins | 34 |
| Propagation Delay (tPD, max) | 10 ns |
| Supply Voltage (VCCINT) | 3.0 V to 3.6 V |
| I/O Voltage Tolerance | Multi-voltage (3.3 V / 2.5 V / 1.8 V capable) |
| Programmable Technology | EEPROM (non-volatile) |
| In-System Programmable | Yes (IEEE Std. 1532 compliant) |
| Boundary-Scan Test | Yes (IEEE Std. 1149.1 JTAG) |
| Pin-Locking | Yes |
| Package | TQFP-44 (10x10 mm) |
| Mounting Type | Surface Mount |
| Lead Finish | Lead-free (NiPdAu, AF suffix) |
| RoHS Status | Compliant |
| Configuration Memory Cycles | 100 erase/program cycles |
EPM3064ATC44-10NAF Pin Configuration
| Pin 1 | I/O — User I/O pin (macrocell input/output) |
| Pin 2 | I/O — User I/O pin (macrocell input/output) |
| Pin 3 | I/O — User I/O pin (macrocell input/output) |
| Pin 4 | I/O — User I/O pin (macrocell input/output) |
| Pin 5 | I/O — User I/O pin (macrocell input/output) |
| Pin 6 | I/O — User I/O pin (macrocell input/output) |
| Pin 7 | I/O — User I/O pin (macrocell input/output) |
| Pin 8 | I/O — User I/O pin (macrocell input/output) |
| Pin 9 | I/O — User I/O pin (macrocell input/output) |
| Pin 10 | GND — Ground |
| Pin 11 | I/O — User I/O pin (macrocell input/output) |
| Pin 12 | I/O — User I/O pin (macrocell input/output) |
| Pin 13 | I/O — User I/O pin (macrocell input/output) |
| Pin 14 | I/O — User I/O pin (macrocell input/output) |
| Pin 15 | I/O — User I/O pin (macrocell input/output) |
| Pin 16 | I/O — User I/O pin (macrocell input/output) |
| Pin 17 | I/O — User I/O pin (macrocell input/output) |
| Pin 18 | I/O — User I/O pin (macrocell input/output) |
| Pin 19 | I/O — User I/O pin (macrocell input/output) |
| Pin 20 | I/O — User I/O pin (macrocell input/output) |
| Pin 21 | I/O — User I/O pin (macrocell input/output) |
| Pin 22 | I/O — User I/O pin (macrocell input/output) |
| Pin 23 | I/O — User I/O pin (macrocell input/output) |
| Pin 24 | I/O — User I/O pin (macrocell input/output) |
| Pin 25 | GND — Ground |
| Pin 26 | I/O — User I/O pin (macrocell input/output) |
| Pin 27 | I/O — User I/O pin (macrocell input/output) |
| Pin 28 | I/O — User I/O pin (macrocell input/output) |
| Pin 29 | I/O — User I/O pin (macrocell input/output) |
| Pin 30 | I/O — User I/O pin (macrocell input/output) |
| Pin 31 | I/O — User I/O pin (macrocell input/output) |
| Pin 32 | I/O — User I/O pin (macrocell input/output) |
| Pin 33 | I/O — User I/O pin (macrocell input/output) |
| Pin 34 | I/O — User I/O pin (macrocell input/output) |
| Pin 35 | I/O — User I/O pin (macrocell input/output) |
| Pin 36 | I/O — User I/O pin (macrocell input/output) |
| Pin 37 | I/O — User I/O pin (macrocell input/output) |
| Pin 38 | TDI — JTAG Test Data In (IEEE 1149.1) |
| Pin 39 | TMS — JTAG Test Mode Select (IEEE 1149.1) |
| Pin 40 | TCK — JTAG Test Clock (IEEE 1149.1) |
| Pin 41 | TDO — JTAG Test Data Out (IEEE 1149.1) |
| Pin 42 | VCCIO — I/O supply voltage (3.0-3.6 V) |
| Pin 43 | VCCINT — Core supply voltage (3.0-3.6 V) |
| Pin 44 | GND — Ground |
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
EPM3064ATC44-10NAF is suitable for 6 applications: Address Decoding & Bus Bridging, FPGA / SoC Power-Up Sequencing, Industrial Control Glue Logic, Legacy Peripheral Emulation, Communication Interface Bridging, Consumer Electronics Display & Control Logic.
Address Decoding & Bus Bridging
The EPM3064ATC44-10NAF is purpose-built for address decoding and bus-bridging logic between microcontrollers, memory, and peripherals. With 64 macrocells and 10 ns tPD propagation delay, it can decode wide address ranges and assert chip selects in a single logic level, eliminating cascaded 74LS/HC gates. The non-volatile EEPROM configuration provides instant-on chip-select assertion at power-up with zero boot delay, which is critical for legacy x86 and 68k systems that require valid memory selects before the first instruction fetch. The 34 I/O pins easily handle 24-bit address plus 8-bit data-direction decoding for SRAM, Flash, and peripheral CS outputs. Multi-voltage I/O (3.3 V/2.5 V/1.8 V) allows direct interfacing to modern SoCs without external level shifters. Typical companion parts are the EPM240T100 (larger MAX II CPLD for follow-on designs) and any 8051/MIPS MCU.
Recommended
FPGA / SoC Power-Up Sequencing
The EPM3064ATC44-10NAF excels at power-supply sequencing for FPGAs, SoCs, and multi-rail processor designs. Its EEPROM-based configuration powers up in a known deterministic state, asserting enable signals to DC-DC converters, LDOs, and reset generators in the correct order before the host FPGA/SoC releases its POR signal. With 10 ns tPD it can sequence 4-6 rails within a few hundred nanoseconds, well below the typical 50 ms POR timeout of modern processors. The 1250-gate capacity easily implements watchdog timers, voltage-rail fault OR-ing, and power-good signal combination. JTAG programming (IEEE 1149.1) allows field updates to the sequencing order without board rework. Typical companion parts include the TPS7A4701 LDO and a small MCU supervisor such as the TPS3823.
Recommended
Industrial Control Glue Logic
The EPM3064ATC44-10NAF is widely deployed in industrial control systems to replace discrete 74LS/HC/ACT logic with a single programmable device, reducing PCB area and improving noise immunity. Industrial applications include PLC digital I/O expansion, motor-control interface logic, encoder-signal quadrature decoders, and isolated UART/SPI bridges. The deterministic 10 ns timing makes it suitable for time-critical control loops and protocol-bit-banging where FPGA boot time is unacceptable. Multi-voltage I/O compatibility directly interfaces 5 V industrial sensors to 3.3 V microcontrollers. The TQFP-44 package is robust enough for industrial temperature ranges and reflow-compatible with standard lead-free processes. Typical companion parts include industrial MCU families (e.g., STM32, PIC18) and isolated RS-485 transceivers.
Recommended
Legacy Peripheral Emulation
The EPM3064ATC44-10NAF is often used to emulate legacy peripherals such as PC/AT bus chips, ISA address latches, and parallel-port interfaces in modernized systems. The 64-macrocell capacity can implement a complete 8-bit or 16-bit peripheral register file with read/write strobes in a single chip. The 10 ns propagation delay meets ISA bus timing (8 MHz / 125 ns cycle) with substantial margin. IEEE 1149.1 boundary-scan test (BST) simplifies board-level test of complex legacy interconnects. Designers can reprogram the same TQFP-44 footprint to emulate different peripherals during design development. Typical companion parts are SRAM chips (e.g., 62C256) and legacy 74-series glue-logic ICs that the CPLD replaces.
Recommended
Communication Interface Bridging
The EPM3064ATC44-10NAF bridges mismatched communication interfaces such as UART-to-SPI, SPI-to-I2C, or parallel-to-serial converters in embedded systems. With 34 I/O pins and 1250 gates it can implement a multi-channel UART/SPI bridge with hardware FIFO control, eliminating the need for a dedicated protocol-converter IC. The 10 ns timing supports UART bit-rates up to ~50 Mbps and SPI clocks beyond 30 MHz. Multi-voltage I/O allows direct connection to 5 V sensors and 1.8 V SoCs without external level translation. JTAG ISP enables field reprogramming when bridging requirements change. Typical companion parts include RS-232/RS-485 transceivers and any modern microcontroller with UART/SPI peripherals.
Recommended
Consumer Electronics Display & Control Logic
The EPM3064ATC44-10NAF is used in consumer electronics for display-interface control, button-matrix decoding, and LED-driving multiplexing. Its non-volatile EEPROM eliminates configuration delays so display backlights, keypads, and indicators operate the instant power is applied - critical for TV, set-top box, and appliance user-perceived responsiveness. The 34 I/Os can scan a 5x5 button matrix plus drive up to 16 LED channels. Pin-locking across design iterations preserves PCB layout, accelerating product development cycles. The compact 10x10 mm TQFP-44 fits inside tight consumer enclosures. Typical companion parts include LED drivers (e.g., TLC5941) and small LCD/OLED displays.
Recommended
Recommended Products Summary
Engineering reference data for EPM3064ATC44-10NAF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3064ATC44-10N | EPM3064ATC44-7N | EPM3064ATC44-4N | EPM3064ATC44-10 | EPM3032ATC44-10N |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | TQFP-44 (10x10 mm) | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same |
| Macro Cells | 64 | 64 | 64 | 64 | 64 | 32 (-50%) |
| Usable Gates | 1250 | 1250 | 1250 | 1250 | 1250 | 600 (-52%) |
| Propagation Delay (tPD max) | 10 ns | 10 ns | 7 ns (faster) | 4 ns (faster) | 10 ns | 10 ns |
| User I/O Pins | 34 | 34 | 34 | 34 | 34 | 36 (+2) |
| Supply Voltage | 3.0-3.6 V | 3.0-3.6 V | 3.0-3.6 V | 3.0-3.6 V | 3.0-3.6 V | 3.0-3.6 V |
| Lead Finish | Lead-free (NiPdAu, AF suffix) | Standard (N suffix) | Standard (N suffix) | Standard (N suffix) | Standard | Standard (N suffix) |
| Configuration Memory | EEPROM (non-volatile) | EEPROM | EEPROM | EEPROM | EEPROM | EEPROM |
| JTAG / Boundary Scan | Yes (IEEE 1149.1 / 1532) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Non-volatile EEPROM configuration provides instant-on operation (vs SRAM-based FPGAs (e.g., Cyclone))
- Compact TQFP-44 package with 34 I/Os at low cost (vs EPM3032ATC44-10N (same package, 32 macros))
- Lead-free NiPdAu finish (AF suffix) for modern assembly (vs EPM3064ATC44-10N (standard N suffix))
Design Notes
The EPM3064ATC44-10NAF requires two power rails: VCCINT (3.0-3.6 V) on pin 43 and VCCIO (3.0-3.6 V) on pin 42. Place a 100 nF decoupling capacitor within 5 mm of each VCC pin and a 10 uF bulk capacitor on the supply rail. The device draws approximately 50-100 mA active depending on switching frequency; ensure the LDO or DC-DC converter provides at least 200 mA headroom. Power sequencing between VCCINT and VCCIO is not required; both rails may ramp together.
The TQFP-44 (10x10 mm) package has 0.8 mm pitch leads requiring careful PCB layout: keep traces short, use 0.2 mm/8 mil trace width with 0.2 mm spacing, and place a continuous ground plane on the layer beneath the CPLD for thermal dissipation and signal integrity. JTAG signals TMS, TCK, TDI, TDO should be routed together with 22-33 ohm series termination to reduce ringing on long traces; add a 10 kohm pull-up on TCK and TMS to keep JTAG in a defined state during board reset.
The MAX 3000A family is supported by legacy Altera MAX+PLUS II and Quartus II (versions up to 13.0) but is NOT supported by modern Quartus Prime Pro/Standard. Attempting to compile a MAX 3000A design in Quartus Prime will fail. Plan to maintain legacy software or migrate new designs to MAX II (EPM240) or MAX V (5M40ZE64) devices. Additionally, the 100 erase/program cycle EEPROM limit means the device should not be used for high-reprogram applications such as FPGA bitstream reconfiguration; instead use SRAM-based FPGAs for those use cases.
Configure unused I/O pins as outputs driving low or as inputs with internal weak pull-ups enabled (default in MAX+PLUS II / Quartus II). Do not leave unused pins floating - this increases power consumption and noise susceptibility. Reserve JTAG pins (TDI/TMS/TCK/TDO) for programming access even if not used in the application circuit, and provide a JTAG header on the PCB so firmware can be updated in-circuit. Pin-locking across speed-grade migration (-10 to -7 or -4) is fully supported, so design the PCB to accept any speed-grade variant.
Compliance Information
RoHS compliant per the "AF" suffix lead-free NiPdAu finish. AEC-Q100 not applicable for general-purpose commercial/industrial CPLD. Halogen-free and conflict-minerals status not specified in verified data - default unknown.
