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 |
EPM3064ATC44-10NAF Overview
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocells on a single die, providing predictable timing, instant-on operation, and wide input-gluing capability. Within the broader taxonomy, CPLDs sit between simple SPLDs/PLDs and larger FPGAs, serving glue-logic, interface bridging, and power-up state-machine roles where deterministic timing and zero-boot-delay configuration are mandatory. The MAX 3000A family from Intel/Altera uses EEPROM-based configuration cells, so the device retains its logic image even after power removal without an external boot PROM.
Key features include 64 macrocells organized into 4 logic array blocks (LABs) of 16 macrocells each, 1250 usable gates, 34 I/O pins with multi-voltage I/O support, IEEE Std. 1149.1 JTAG boundary-scan test (BST) and IEEE Std. 1532 in-system programmability, and a 10 ns maximum propagation delay from input pin to output pin. The device also provides a global Clear signal, four pin-compatible I/O standards, and pin-locking capability that preserves the board layout across design iterations. Programmable interconnect uses the Altera Classic / MAX architecture with continuous routing that simplifies timing closure.
The EPM3064ATC44-10NAF is built on a 5 V-tolerant I/O structure with multi-voltage I/O capability for interfacing with 3.3 V, 2.5 V, and 1.8 V logic without external level shifters. Internal pull-up resistors on every I/O simplify board layout by eliminating external resistors on unused or tri-stated pins. The EEPROM configuration cell is rated for 100 erase/program cycles, suiting design-stage iteration and field upgrades via JTAG. The TQFP-44 (10x10 mm) package is a JEDEC-standard thin quad flat pack suitable for reflow soldering.
Typical applications include bus and peripheral interface bridging (e.g., address decoding between an MCU and SRAM), state-machine and control-logic replacement for 74LS/HC discrete glue, power-up sequencing logic for FPGAs and SoCs, and small bus-multiplexing/level-translation bridges. Designers choose MAX 3000A parts when they need instant-on, deterministic-timed logic without the cost or complexity of an SRAM-based FPGA. In cost-sensitive industrial controls and consumer electronics, the EPM3064A series is often the lowest-cost CPLD for sub-128 macrocell designs.
When designing with this device, plan a 100 nF decoupling capacitor adjacent to every VCCIO/VCCINT pair, keep JTAG TMS/TCK/TDO/TDI traces short and series-terminated, and configure unused I/O pins as outputs driving low or as inputs with internal weak pull-ups enabled. Confirm Quartus II MAX+PLUS II or legacy MAX+PLUS II compatibility, because the MAX 3000A family is supported by Altera/Intel MAX+PLUS II and Quartus II design software but is NOT supported by modern Quartus Prime Pro/Standard editions.
This page synthesizes distributor availability, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for EPM3064ATC44-10NAF — 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 EPM3064ATC44-10NAF (same form factor and footprint) — differing in Package, Operating Temperature, Configuration Memory, Maximum Counter Frequency, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM3064ATC44-10N
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →EPM3064ATC44-7N
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$2.3 / Unit
View Datasheet →EPM3064ATC44-4N
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$3.45 / Unit
View Datasheet →EPM3064ATC44-10
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$4.35 / Unit
View Datasheet →EPM3032ATC44-10N
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$2.46 / Unit
View Datasheet →EPM3064ALI44-10N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$7.8 / Unit
View Datasheet →EPM3064ALC44-10N
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$4.25 / Unit
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 |
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.
