EPM3064ATC44-10N - 64-Macro Cell MAX 3000A CPLD | Altera
MPN: EPM3064ATC44-10N ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.49 | $9.49 |
| 10 | $8.55 | $85.50 |
| 100 | $7.12 | $712.00 |
| 500 | $5.84 | $2,920.00 |
| 1,000 | $5.1 | $5,100.00 |
Drop-in alternatives for EPM3064ATC44-10N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM3064ATC44-7N
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View Datasheet →EPM3064ALI44-10N
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View Datasheet →EPM3064ALC44-10N
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View Datasheet →EPM3064ALC44-7N
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View Datasheet →EPM3064ALC44-4N
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View Datasheet →EPM3064ATC44-10N Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Usable Gates | 1250 |
| Macro Cells | 64 |
| User I/O Pins | 34 |
| Logic Array Blocks (LABs) | 4 |
| Pin-to-Pin Delay (tPD) | 10 ns |
| Maximum Counter Frequency | 192.3 MHz |
| Supply Voltage (VCCINT) | 3.3 V |
| I/O Standard | MultiVolt (mixed 1.5 V / 1.8 V / 2.5 V / 3.3 V) |
| Configuration Memory | EEPROM (non-volatile) |
| In-System Programming | IEEE Std. 1532 compliant |
| Boundary-Scan Test | IEEE Std. 1149.1 (JTAG) compliant |
| Package | TQFP-44 (10x10 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | 0C to +70C (commercial) |
| RoHS Status | Compliant |
| Pin-Locking | Yes (across design iterations) |
EPM3064ATC44-10N Pin Configuration
| Pin 1 | I/O — User I/O pin |
| Pin 2 | I/O — User I/O pin |
| Pin 3 | I/O — User I/O pin |
| Pin 4 | I/O — User I/O pin |
| Pin 5 | I/O — User I/O pin |
| Pin 6 | I/O — User I/O pin |
| Pin 7 | I/O — User I/O pin |
| Pin 8 | I/O — User I/O pin |
| Pin 9 | I/O — User I/O pin |
| Pin 10 | GND — Ground |
| Pin 11 | I/O — User I/O pin |
| Pin 12 | I/O — User I/O pin |
| Pin 13 | I/O — User I/O pin |
| Pin 14 | I/O — User I/O pin |
| Pin 15 | TDI — JTAG Test Data In |
| Pin 16 | TMS — JTAG Test Mode Select |
| Pin 17 | TCK — JTAG Test Clock |
| Pin 18 | I/O — User I/O pin |
| Pin 19 | I/O — User I/O pin |
| Pin 20 | I/O — User I/O pin |
| Pin 21 | VCCINT — Core supply voltage (3.3 V) |
| Pin 22 | I/O — User I/O pin |
| Pin 23 | I/O — User I/O pin |
| Pin 24 | I/O — User I/O pin |
| Pin 25 | I/O — User I/O pin |
| Pin 26 | I/O — User I/O pin |
| Pin 27 | I/O — User I/O pin |
| Pin 28 | I/O — User I/O pin |
| Pin 29 | INPUT/GCLK — Dedicated clock input |
| Pin 30 | INPUT/OE2 — Dedicated output enable input |
| Pin 31 | I/O — User I/O pin |
| Pin 32 | I/O — User I/O pin |
| Pin 33 | I/O — User I/O pin |
| Pin 34 | I/O — User I/O pin |
| Pin 35 | I/O — User I/O pin |
| Pin 36 | I/O — User I/O pin |
| Pin 37 | I/O — User I/O pin |
| Pin 38 | TDO — JTAG Test Data Out |
| Pin 39 | GND — Ground |
| Pin 40 | VCCIO — I/O supply voltage (MultiVolt) |
| Pin 41 | I/O — User I/O pin |
| Pin 42 | I/O — User I/O pin |
| Pin 43 | I/O — User I/O pin |
| Pin 44 | I/O — 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
EPM3064ATC44-10N is suitable for 7 applications: Bus-Interface Glue Logic, Address Decoding and Chip-Select Generation, FPGA Configuration and Boot-Logic Supervisor, State-Machine and Control Logic, Peripheral I/O Expansion, TTL/CMOS Logic Replacement, Communications Protocol Bridging.
Bus-Interface Glue Logic
The EPM3064ATC44-10N is ideally suited for bus-interface glue-logic applications: address decoding, chip-select generation, wait-state insertion, and protocol bridging between microprocessors, memory, and peripherals. Its 64 macro cells provide enough capacity to implement multi-bank address decoding across a 24- or 32-bit address bus, while the 10 ns tPD keeps decode-to-enable latency well within modern memory access cycles. MultiVolt I/O allows direct interfacing between 3.3 V logic on one bus and 5 V-tolerant or 2.5 V devices on the other without external level shifters. The JTAG/ISP interface (IEEE 1149.1/1532) enables in-field reprogramming for late-stage bus-protocol changes without board rework.
Recommended
Address Decoding and Chip-Select Generation
For address-decoding and chip-select generation in microprocessor systems, the EPM3064ATC44-10N's combinational macro cells and 10 ns tPD deliver fast, deterministic propagation from address-input to chip-select-output, eliminating the timing-skew issues of discrete 74LS/HC decoder chains. The 1250 usable gates comfortably handle 8- to 16-way bank selection plus wait-state insertion logic. EEPROM non-volatility means the decode map is intact at power-on with zero boot time, unlike SRAM-based FPGAs that require configuration loading. The TQFP-44 footprint with 34 user I/Os supports full address plus chip-select fan-out in a compact 10x10 mm outline.
Recommended
FPGA Configuration and Boot-Logic Supervisor
In FPGA-based systems, the EPM3064ATC44-10N is frequently deployed as a configuration supervisor: it sequences power rails, gates the FPGA's PROG_B or nCONFIG pin, monitors DONE status, and selects between multiple bitstream images at boot. The 10 ns tPD and 192.3 MHz counter frequency are fast enough to enforce sub-microsecond FPGA reset-to-DONE timing windows. The JTAG/ISP interface allows in-system reprogramming of the supervisor CPLD itself, useful for late-stage power-sequencing fixes. EEPROM non-volatility ensures the supervisor is ready before any downstream FPGA begins configuration.
Recommended
State-Machine and Control Logic
The EPM3064ATC44-10N is a strong fit for implementing Moore and Mealy state machines in industrial control, motor sequencing, and protocol-state applications where deterministic timing matters. Each macro cell provides a programmable register with dedicated clock, reset, and output enable, enabling 32- to 64-state FSMs to be implemented cleanly with registered outputs. The deterministic tPD simplifies worst-case timing analysis since routing delay does not vary with design complexity as it does in FPGAs. JTAG-based design iteration via the IEEE 1149.1/1532 interface allows in-system state-machine debugging and firmware updates.
Recommended
Peripheral I/O Expansion
For peripheral I/O expansion on microcontrollers or DSPs that have insufficient native GPIO, the EPM3064ATC44-10N provides 34 user I/O pins plus JTAG-controlled register read/write, expanding I/O count without redesigning the host processor. The 3.3 V VCCINT plus MultiVolt I/O banks allow direct interfacing to 1.8 V, 2.5 V, and 3.3 V peripherals. Macro cells implement shift registers, debouncers, and PWM generators in a single IC, replacing several 74-series logic chips. The 10 ns tPD supports polled I/O at typical MCU SPI/I2C bit rates without bottleneck.
Recommended
TTL/CMOS Logic Replacement
The EPM3064ATC44-10N is a classic one-chip replacement for clusters of 74LS, 74HC, and 74F-series TTL/CMOS glue logic, consolidating 5-15 small-scale integration packages into a single TQFP-44 device. Designers migrating legacy designs to lead-free BOMs can re-implement the discrete logic in the EPM3064ATC44-10N, preserving PCB layout while modernizing the part list. The 1250 usable gates provide enough capacity for complete address decode, bus arbitration, and interrupt control logic. EEPROM non-volatility means the consolidated design retains its functionality indefinitely without external boot memory.
Recommended
Communications Protocol Bridging
The EPM3064ATC44-10N implements small protocol-bridging functions between UART, SPI, I2C, and parallel bus peripherals where pin-count and timing constraints rule out soft IP in a microcontroller. The 10 ns tPD supports parallel-bus bridging at typical embedded speeds, and the JTAG/ISP interface allows late-stage protocol-firmware updates. MultiVolt I/O lets the CPLD bridge between 1.8 V sensor buses and 3.3 V host MCUs without external level shifters. EEPROM non-volatility ensures bridge configuration persists across power cycles with no boot delay.
Recommended
Recommended Products Summary
Engineering reference data for EPM3064ATC44-10N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3064ATC44-7N | EPM3064ATC44-4N | EPM3064ATC44-10 | EPM3064ALI44-10N | EPM3064ALC44-10N |
|---|---|---|---|---|---|---|
| Package | TQFP-44 (10x10 mm) | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same |
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Pin-to-Pin Delay (tPD) | 10 ns | 7.5 ns (faster) | 4.5 ns (fastest) | 10 ns (same) | 10 ns (same) | 10 ns (same) |
| Macro Cells | 64 | 64 | 64 | 64 | 64 | 64 |
| User I/Os | 34 | 34 | 34 | 34 | 34 | 34 |
| Counter Frequency | 192.3 MHz | 222.2 MHz | 285.7 MHz | 192.3 MHz | 192.3 MHz | 192.3 MHz |
| Operating Temperature | 0C to +70C (commercial) | 0C to +70C (commercial) | 0C to +70C (commercial) | 0C to +70C (commercial) | -40C to +85C (industrial) | 0C to +70C (commercial) |
| Lead-Free / RoHS | Yes (N suffix) | Yes | Yes | No (legacy finish) | Yes | Yes |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
Key Differentiators
- Lowest-cost lead-free variant in -10 speed grade (vs EPM3064ATC44-7N)
- Commercial temperature grade, lead-free finish (vs EPM3064ALI44-10N)
- RoHS-compliant lead-free finish (vs EPM3064ATC44-10)
Design Notes
The EPM3064ATC44-10N draws approximately 35-50 mA typical ICCINT from the 3.3 V supply, plus I/O switching current proportional to toggle frequency. Place one 0.1 uF ceramic decoupling capacitor within 3 mm of each VCCINT (pin 21) and VCCIO (pin 40) pin, and add a bulk 10 uF tantalum or ceramic capacitor on the supply rail. According to the MAX 3000A datasheet, VCCINT ripple above 100 mV pk-pk can cause configuration-memory read errors during ISP; keep the supply well-bypassed.
For the TQFP-44 package, route JTAG signals (TDI pin 15, TMS pin 16, TCK pin 18, TDO pin 38) as short, impedance-controlled traces (typically 50 ohm) with no stubs. The TCK trace should be length-matched to within 25 mm of TMS and TDI to prevent ISP programming failures. Keep all four JTAG signals away from switching signal traces and clock lines to avoid coupling noise into the boundary-scan logic.
When using MultiVolt I/O to interface between 3.3 V VCCINT and 5 V peripherals, configure VCCIO to 3.3 V and rely on the I/O cells' 5 V-tolerant input structures. Do not drive 5 V outputs into a CPLD with VCCIO set below 3.0 V, as the input clamping diodes will forward-bias and inject current into the supply rail. Per the datasheet, unused I/O pins must be configured as outputs driving low (or inputs with internal pull-up enabled) to prevent floating-input oscillation that can increase ICC and couple noise into adjacent signals.
Common design pitfalls include: (1) omitting the TCK pull-down resistor, which leaves the JTAG state machine in an undefined state at power-up and prevents ISP programming; (2) using the EPM3064ATC44-10 in a socketed configuration that adds too much capacitance to TCK/TMS, causing ISP timing violations; (3) forgetting that MultiVolt I/O banks can be set per-pin but VCCINT must be 3.3 V +/- 0.3 V; (4) tying multiple I/O pins together without considering the macro-cell's drive strength (8 mA IOL typical). Always validate timing with the MAX+PLUS II or Quartus timing analyzer before committing to PCB layout.
Compliance Information
RoHS-compliant per 'N' suffix designation in Altera/Intel part numbering. Lead-free matte-tin finish. AEC-Q100 not applicable for commercial-grade CPLD; industrial-grade variants (EPM3064ALI44-10N) extend operating temperature range but are not automotive-qualified.
