EPM3064ATI44-10 - 64-Macrocell MAX 3000A CPLD, TQFP-44 | Intel / Altera
MPN: EPM3064ATI44-10 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.5 | $11.50 |
| 10 | $10.35 | $103.50 |
| 100 | $9.2 | $920.00 |
| 500 | $8.4 | $4,200.00 |
| 1,000 | $7.65 | $7,650.00 |
EPM3064ATI44-10 Overview
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits in the hierarchy between simple SPLDs/PLDs and high-density FPGAs. Compared with FPGAs, CPLDs use non-volatile EEPROM or flash configuration memory (instant-on, no boot time) and a coarse-grained macrocell architecture optimized for wide combinational/registered logic, bus bridging, and glue-logic replacement. MAX 3000A belongs to the EEPROM-based CPLD category - LDO -> CPLD family -> programmable logic -> digital logic IC -> semiconductor - and competes with Xilinx XC9500XL, Lattice ispMACH 4000, and Microchip ATF1500 families.
Key features include 64 macrocells across four logic array blocks (LABs), 34 user I/O pins, 10 ns pin-to-pin tPD, and counter speeds up to 227.3 MHz. MultiVolt I/O supports interfacing to 1.8 V, 2.5 V, 3.3 V and 5.0 V logic without external level shifters, while an internal charge pump supports in-system programming of the EEPROM array via the standard 4-pin JTAG (IEEE 1149.1) interface.
Architecturally, the device combines a programmable interconnect array, four LABs each containing 16 macrocells, a global control signal network, and an IEEE 1149.1 boundary-scan test interface. The EEPROM configuration cell is rated for 100 program/erase cycles and provides instant-on behavior with zero configuration latency at power-up - a defining advantage over SRAM-based FPGAs in deterministic boot applications.
Typical applications include industrial control glue logic, address decoding and bus interfacing, motor control peripheral expansion, legacy microcontroller peripheral replacement, and power-sequencing logic in telecom/networking backplane hardware. The wide operating temperature range and 5 V-tolerant I/O make the part particularly attractive for industrial and telecom designs where 3.3 V MCUs must interface to 5 V peripherals.
When designing with this device, reserve JTAG pins (TDI, TDO, TMS, TCK) for ISP - they cannot be used as general-purpose I/O without disabling JTAG. Provide a clean 3.3 V supply with adequate bulk decoupling, since EEPROM programming transients draw additional current during in-system updates.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet - enabling faster component selection for legacy CPLD redesigns.
Drop-in alternatives for EPM3064ATI44-10 — 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 EPM3064ATI44-10 (same form factor and footprint) — differing in Operating Temperature, Package, RoHS Status, Maximum Counter Frequency, Programmable Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM3064ATI44-10N
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →EPM3064ATC44-10N
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →EPM3064ATC44-7N
✅ Drop-In✓ In Stock
$2.3 / Unit
View Datasheet →EPM3064ATC44-10
✅ Drop-In✓ In Stock
$4.35 / Unit
View Datasheet →EPM3064ATC44-4N
✅ Drop-In✓ In Stock
$3.45 / Unit
View Datasheet →EPM3064ALI44-10N
✅ Drop-In✓ In Stock
$7.8 / Unit
View Datasheet →EPM3064ATI44-10 Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Product Type | CPLD (Complex Programmable Logic Device) |
| Programmable Type | In-System Programmable (ISP), EEPROM-based |
| Number of Macrocells | 64 |
| Number of Logic Array Blocks (LABs) | 4 |
| Number of Usable Gates | 1,250 |
| Number of User I/O Pins | 34 |
| Package | TQFP-44 (10x10 mm, 0.8 mm pitch) |
| Pin-to-Pin Delay (tPD) | 10 ns |
| Maximum Counter Frequency | 227.3 MHz |
| Supply Voltage (VCCINT) | 3.3 V |
| I/O Voltage Tolerance | 5.0 V tolerant (MultiVolt I/O) |
| JTAG Interface | IEEE Std. 1149.1 compliant |
| ISP Standard | IEEE Std. 1532 |
| Operating Temperature | -40C to +85C (Industrial) |
| RoHS Status | Non-Compliant (contains lead, per DigiChip listing) |
| Lead Free Status | Contains Lead |
| Mounting Type | Surface Mount |
| Process Technology | CMOS, EEPROM |
EPM3064ATI44-10 Pin Configuration
| Pin 1 | I/O — User I/O pin (macrocell-driven bidirectional) |
| 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 | I/O — User I/O pin |
| Pin 16 | I/O — User I/O pin |
| Pin 17 | I/O — User I/O pin |
| 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 | GND — Ground |
| 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 | I/O — User I/O pin |
| Pin 30 | TDI — JTAG Test Data In (IEEE 1149.1) |
| Pin 31 | TMS — JTAG Test Mode Select |
| Pin 32 | TCK — JTAG Test Clock |
| 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 | VCC — 3.3 V core supply |
| Pin 39 | I/O — User I/O pin |
| Pin 40 | I/O — User I/O pin |
| 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 | TDO — JTAG Test Data Out |
Typical Applications
EPM3064ATI44-10 is suitable for 6 applications: Industrial Control Glue Logic, Address Decoding and Bus Interfacing, Legacy Microcontroller Peripheral Replacement, Power Sequencing in Telecom/Networking Backplanes, Motor Control Peripheral Expansion, Communication Protocol Bridging (UART/SPI/I2C).
Industrial Control Glue Logic
The EPM3064ATI44-10's 64 macrocells, 34 user I/O, and 10 ns tPD make it ideal for industrial control glue logic where deterministic, instant-on logic replaces discrete 74HC/MSI chips. With 5.0 V tolerant I/O via MultiVolt, the device bridges 3.3 V microcontrollers to legacy 5 V peripheral drivers, opto-isolators, and relay coils without external level shifters. The EEPROM-based non-volatile configuration boots in microseconds - critical for fail-safe PLC and motor-drive designs where SRAM-FPGA boot delays are unacceptable. Place the device between the MCU address/data bus and the peripheral decoder logic, with JTAG (TCK, TMS, TDI, TDO) reserved for in-field ISP during commissioning.
Recommended
Address Decoding and Bus Interfacing
The 10 ns tPD and 227.3 MHz counter frequency suit the EPM3064ATI44-10 for address decoding and bus-bridging applications, such as generating chip-select signals for memory banks, mapping multiplexed address/data buses, or creating custom peripheral-select logic for embedded systems. With 64 macrocells and 34 I/O, it can decode wide address ranges (e.g., 24-bit to 32-bit) and produce multiple staggered chip-select outputs with configurable wait-state insertion. The instant-on EEPROM configuration eliminates FPGA bitstream-load delays on power-up - a key advantage in boot-loader designs where the CPLD must assert decode logic before the CPU fetches its first instruction.
Recommended
Legacy Microcontroller Peripheral Replacement
The EPM3064ATI44-10 is frequently used to replace obsolete microcontroller peripherals (e.g., 8255 PPI, 8253 PIT, 16450 UART) by re-implementing their register interfaces in CPLD logic. With 64 macrocells, a single device can typically emulate one full peripheral block, while 5 V tolerant I/O and 3.3 V core voltage match the electrical profile of legacy +5 V or modern +3.3 V systems. The JTAG (IEEE 1149.1) ISP interface enables in-circuit firmware updates during board bring-up and field servicing. Drop the part onto the original peripheral's footprint and re-emulate the register map in Verilog/VHDL for cost-effective legacy system support.
Recommended
Power Sequencing in Telecom/Networking Backplanes
The EPM3064ATI44-10's deterministic instant-on behavior makes it well suited for power-sequencing logic in telecom and networking backplane hardware, where multiple DC-DC converters must be enabled in a precise order (e.g., 1.0 V core before 1.8 V before 3.3 V before 5.0 V) to prevent latch-up or in-rush damage. Each macrocell can implement a delay timer or voltage-good comparator, and the 34 I/O pins can drive PG (power-good) and EN lines for up to 16 power rails. The -40C to +85C industrial temperature range and 5 V tolerant I/O ensure reliable operation in thermally demanding central-office and edge-router environments.
Recommended
Motor Control Peripheral Expansion
The 64 macrocells and 10 ns tPD of the EPM3064ATI44-10 enable implementation of PWM generation, quadrature encoder decoding, and Hall-sensor interface logic for motor control applications. The 227.3 MHz counter speed supports high-resolution PWM at switching frequencies up to several hundred kHz, while 34 I/O pins can simultaneously drive 3-phase inverter signals, capture encoder inputs, and interface to the host DSP/MCU. The industrial temperature grade (-40C to +85C) and 5 V tolerant I/O suit industrial servo drives, where 5 V analog feedback and 3.3 V DSP logic coexist on the same PCB.
Recommended
Communication Protocol Bridging (UART/SPI/I2C)
The EPM3064ATI44-10 can bridge between mismatched serial protocols - UART-to-SPI, SPI-to-I2C, I2C-to-parallel - in industrial and embedded designs where the host MCU lacks the required peripheral. With 64 macrocells, multiple simple bridges can coexist in one device, and the 34 I/O pins can be allocated across multiple channels. The 5 V tolerant I/O is particularly valuable when bridging modern 3.3 V MCUs to legacy 5 V sensors or RS-232/RS-485 transceivers. Program the device via JTAG during prototype bring-up; once the bitstream is verified, EEPROM configuration locks the design in non-volatile memory for production.
Recommended
Recommended Products Summary
Engineering reference data for EPM3064ATI44-10 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3064ATI44-10N | EPM3064ATC44-10N | EPM3064ATC44-7N | EPM3064ATC44-4N | EPM3064ALI44-10N |
|---|---|---|---|---|---|---|
| Brand | Intel | Intel | Intel | Intel | Intel | Intel |
| Package | TQFP-44 | TQFP-44 | TQFP-44 | TQFP-44 | TQFP-44 | TQFP-44 |
| Macrocells | 64 | 64 | 64 | 64 | 64 | 64 |
| Pin-to-Pin Delay (tPD) | 10 ns | 10 ns | 10 ns | 7.5 ns | 4.5 ns | 10 ns |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +85C (Commercial) | 0C to +85C (Commercial) | 0C to +85C (Commercial) | -40C to +85C (Industrial) |
| RoHS Compliance | Non-compliant (contains lead) | Compliant | Compliant | Compliant | Compliant | Compliant |
| User I/O Pins | 34 | 34 | 34 | 34 | 34 | 34 |
| Core Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
Key Differentiators
- Industrial temperature grade (-40C to +85C) in TQFP-44 (vs EPM3064ATC44-10N)
- Original non-RoHS variant for legacy equipment maintenance (vs EPM3064ATI44-10N)
- 5.0 V tolerant MultiVolt I/O for 5V-to-3.3V bridging (vs EPM3064ATC44-7N (same family, faster speed grade))
Design Notes
The EPM3064ATI44-10 requires a clean 3.3 V core supply (VCCINT on pin 38 in TQFP-44). Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VCC pin, plus a 10 uF bulk capacitor near the device. During in-system programming via JTAG, the internal charge pump draws additional transient current - ensure the 3.3 V regulator can source at least 200 mA peak. Avoid sharing the VCC rail with high-noise switching converters; route the CPLD supply from a filtered LDO output if the system 3.3 V is generated by a buck regulator.
For TQFP-44 layout, allocate a 10x10 mm land pattern with 0.8 mm pitch and follow standard JEDEC MS-026 guidelines. Route JTAG signals (TDI, TDO, TMS, TCK) as a short daisy-chain with 10-22 ohm series termination if the TCK frequency exceeds 10 MHz. The four ground pins (pin 10, 21, plus GND on remaining pads) must each connect to a continuous ground plane via short vias - this is critical for signal integrity on the 5 V tolerant I/O banks. Keep clock inputs away from I/O switching lines to minimize simultaneous-switching-noise (SSN) coupling into the JTAG test logic.
Do NOT use the four JTAG pins (TDI pin 30, TMS pin 31, TCK pin 32, TDO pin 44 in TQFP-44) as general-purpose I/O without disabling JTAG in the Quartus design - leaving JTAG enabled consumes the pins and may cause contention during ISP. Verify the bitstream file is compiled for the correct speed grade (-10 = 10 ns tPD) before programming; loading a -7 or -4 bitstream into a -10 device can produce timing violations. Finally, confirm the silicon revision matches: the T (industrial temp) and C (commercial temp) suffixes are NOT interchangeable for outdoor or automotive designs where the operating temperature can drop below 0C.
Compliance Information
RoHS non-compliant per DigiChip listing (Contains Lead). For RoHS-compliant designs choose EPM3064ATI44-10N. Reach compliance assumed by Intel part numbering convention but should be confirmed with manufacturer. Not AEC-Q100 qualified - not recommended for automotive safety applications.
