EPM3064ATI44-7 - 64-Macrocell CPLD, 7.5ns, 44-TQFP | Altera
MPN: EPM3064ATI44-7 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.2 | $72.00 |
| 100 | $5.95 | $595.00 |
| 500 | $5.1 | $2,550.00 |
| 1,000 | $4.4 | $4,400.00 |
Drop-in alternatives for EPM3064ATI44-7 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPM3064ATC44-7
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View Datasheet βEPM3064ATI44-7 Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Product Type | CPLD (Complex Programmable Logic Device) |
| Macrocells | 64 |
| Usable Gates | 1,250 |
| User I/O | 34 |
| Logic Array Blocks (LABs) | 4 (16 macrocells each) |
| Propagation Delay (tPD) | 7.5 ns |
| Maximum Internal Frequency (fMAX) | 135.1 MHz |
| Supply Voltage (VCCINT) | 3.0 V to 3.6 V |
| Supply Voltage (VCCIO) | 3.0 V to 3.6 V |
| Process Technology | 0.30 Β΅m CMOS EEPROM |
| Operating Temperature | -40 Β°C to +85 Β°C (Industrial, 'I' suffix) |
| Package | 44-pin TQFP (TI44) |
| Mounting Type | Surface Mount |
| In-System Programmability | Yes, IEEE Std. 1532 compliant |
| JTAG Support | Yes (IEEE 1149.1) |
| PCI Compliance | Yes, speed grades -4/-5/-6/-7/-10 meet PCI SIG Rev. 2.2 |
EPM3064ATI44-7 Pin Configuration
| Pin 1 | I/O β User I/O pin (bidirectional, IO33) |
| Pin 2 | I/O β User I/O pin (bidirectional, IO32) |
| Pin 3 | I/O β User I/O pin (bidirectional, IO31) |
| Pin 4 | I/O β User I/O pin (bidirectional, IO30) |
| Pin 5 | I/O β User I/O pin (bidirectional, IO29) |
| Pin 6 | I/O β User I/O pin (bidirectional, IO28) |
| Pin 7 | I/O β User I/O pin (bidirectional, IO27) |
| Pin 8 | I/O β User I/O pin (bidirectional, IO26) |
| Pin 9 | I/O β User I/O pin (bidirectional, IO25) |
| Pin 10 | GND β Ground |
| Pin 11 | I/O β User I/O pin (bidirectional, IO24) |
| Pin 12 | I/O β User I/O pin (bidirectional, IO23) |
| Pin 13 | I/O β User I/O pin (bidirectional, IO22) |
| Pin 14 | I/O β User I/O pin (bidirectional, IO21) |
| Pin 15 | I/O β User I/O pin (bidirectional, IO20) |
| Pin 16 | I/O β User I/O pin (bidirectional, IO19) |
| Pin 17 | I/O β User I/O pin (bidirectional, IO18) |
| Pin 18 | VCCINT β Core supply voltage (3.3 V) |
| Pin 19 | I/O β User I/O pin (bidirectional, IO17) |
| Pin 20 | I/O β User I/O pin (bidirectional, IO16) |
| Pin 21 | I/O β User I/O pin (bidirectional, IO15) |
| Pin 22 | I/O β User I/O pin (bidirectional, IO14) |
| Pin 23 | I/O β User I/O pin (bidirectional, IO13) |
| Pin 24 | I/O β User I/O pin (bidirectional, IO12) |
| Pin 25 | I/O β User I/O pin (bidirectional, IO11) |
| Pin 26 | GND β Ground |
| Pin 27 | I/O β User I/O pin (bidirectional, IO10) |
| Pin 28 | I/O β User I/O pin (bidirectional, IO9) |
| Pin 29 | I/O β User I/O pin (bidirectional, IO8) |
| Pin 30 | I/O β User I/O pin (bidirectional, IO7) |
| Pin 31 | I/O β User I/O pin (bidirectional, IO6) |
| Pin 32 | TDI β JTAG Test Data In (IEEE 1149.1) |
| Pin 33 | TMS β JTAG Test Mode Select |
| Pin 34 | TCK β JTAG Test Clock |
| Pin 35 | GND β Ground |
| Pin 36 | TDO β JTAG Test Data Out |
| Pin 37 | I/O β User I/O pin (bidirectional, IO5) |
| Pin 38 | I/O β User I/O pin (bidirectional, IO4) |
| Pin 39 | I/O β User I/O pin (bidirectional, IO3) |
| Pin 40 | VCCIO β I/O supply voltage (3.3 V) |
| Pin 41 | I/O β User I/O pin (bidirectional, IO2) |
| Pin 42 | I/O β User I/O pin (bidirectional, IO1) |
| Pin 43 | I/O β User I/O pin (bidirectional, IO0) |
| Pin 44 | I/O β User I/O pin (bidirectional, GCLK1/global clock) |
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
EPM3064ATI44-7 is suitable for 6 applications: PCI Bus Interface Glue Logic, Power-Up Sequencing Controller, Microcontroller I/O Expansion, Address Decoding and Chip Select Logic, Legacy Industrial System Replacement, Bus Interface Bridge and Protocol Translation.
PCI Bus Interface Glue Logic
The EPM3064ATI44-7's 7.5 ns tPD and PCI SIG Rev. 2.2 compliance make it well-suited for PCI bus glue logic at 33 MHz, where address decoding, command decoding, and parity generation must complete within a single 30 ns PCI clock cycle. With 64 macrocells and 34 I/O, the device can implement multi-function decode, wait-state insertion, and bus arbitration state machines in a single chip. Place the CPLD between the PCI bus and the local microcontroller or ASIC, using VCCIO at 3.3 V to match the PCI signaling environment; unlike a small FPGA, the EEPROM-based configuration powers up instantly with no boot delay.
Recommended
Power-Up Sequencing Controller
The EPM3064ATI44-7's non-volatile EEPROM configuration and 64 macrocells make it ideal for multi-rail power-up sequencing in industrial and telecom systems. The device can monitor PG (power-good) signals from up to 8-12 DC-DC converters and assert enable signals in a programmed order with configurable delays implemented in logic. Operating from 3.0-3.6 V, it can be powered from a standby rail and remain active while sequencing main rails. Compared to a discrete sequencing solution using timers and logic gates, the CPLD provides programmable timing, easy design changes via JTAG, and smaller board area in a 44-TQFP.
Recommended
Microcontroller I/O Expansion
Designers using microcontrollers with insufficient GPIO often use the EPM3064ATI44-7 to add 34 user I/O lines from a single 3.3 V supply. The CPLD connects to the MCU via SPI or parallel bus, allowing up to 32 register-mapped I/O bits per device with logic-level translation done in the macrocell fabric. With 7.5 ns tPD and 135.1 MHz fMAX, the device can implement shift registers, PWM generators, or quadrature decoders in hardware, offloading the MCU. Industrial temperature grade (-40 to +85 Β°C) suits factory automation and outdoor equipment.
Recommended
Address Decoding and Chip Select Logic
Memory and peripheral address decoding in 8/16/32-bit embedded systems is a classic CPLD use case where the EPM3064ATI44-7's 64 macrocells provide ample capacity for 8-16 chip-select outputs with full address-decode logic and minimal external glue. The 7.5 ns tPD easily fits within a 50 ns memory cycle, and the JTAG ISP lets engineers iterate the decode map without removing the chip. Industrial temperature rating suits harsh-environment embedded systems such as factory controllers, transportation, and outdoor telecom equipment.
Recommended
Legacy Industrial System Replacement
The EPM3064ATI44-7 is a drop-in replacement for legacy 44-TQFP MAX 3000A designs where original parts have reached end-of-life and field-repair inventory is critical. With identical footprint, pinout, and Quartus II programming flow, the device can substitute for EPM3064ATC44-7, EPM3064ATI44-10, or other MAX 3000A -7/-10 speed grades with timing within datasheet margins. Use it to maintain production of long-lifecycle industrial controllers, medical instruments, and military systems where PC board redesign is cost-prohibitive and IEC compliance testing must not be repeated.
Recommended
Bus Interface Bridge and Protocol Translation
The EPM3064ATI44-7 enables bridging between legacy parallel buses (ISA, PC/104, custom microcontrollers) and modern peripherals, with up to 34 I/O supporting 16-bit data plus 8-bit address plus control signals. The 7.5 ns tPD accommodates full-speed protocol translation at 50 MHz, and the EEPROM configuration preserves bridge logic across power cycles - critical for bus analyzers and protocol converters that must boot into a known state. Designers can use Quartus II schematic capture or VHDL/Verilog to implement bus-master arbitration, FIFO flag generation, or level-shifting state machines in a single device.
Recommended
Recommended Products Summary
Engineering reference data for EPM3064ATI44-7 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3064ATC44-7 | EPM3064ATC44-7N | EPM3064ATI44-7N | EPM3064ATI44-4N | EPM3064ATC44-4N | EPM3032ATC44-7 |
|---|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 44-TQFP (TI44) | 44-TQFP (TC44) - same | 44-TQFP (TC44) - same | 44-TQFP (TI44) - same | 44-TQFP (TI44) - same | 44-TQFP (TC44) - same | 44-TQFP (TC44) - same |
| Macrocells | 64 | 64 | 64 | 64 | 64 | 64 | 32 (-50%) |
| Speed Grade | -7 (7.5 ns tPD) | -7 (7.5 ns) | -7 (7.5 ns) | -7 (7.5 ns) | -4 (4.5 ns, faster) | -4 (4.5 ns, faster) | -7 (7.5 ns) |
| Operating Temperature | -40 Β°C to +85 Β°C (Industrial) | 0 Β°C to +70 Β°C (Commercial) | 0 Β°C to +70 Β°C (Commercial) | -40 Β°C to +85 Β°C (Industrial) | -40 Β°C to +85 Β°C (Industrial) | 0 Β°C to +70 Β°C (Commercial) | 0 Β°C to +70 Β°C (Commercial) |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| User I/O | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| Pb-Free / Lead-Free Finish | Not specified in provided data | [DATA_NEEDED] | Yes (Pb-free, 'N' suffix) | Yes (Pb-free, 'N' suffix) | Yes (Pb-free, 'N' suffix) | Yes (Pb-free, 'N' suffix) | [DATA_NEEDED] |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Industrial temperature range without speed-grade trade-off (vs EPM3064ATC44-7)
- Maintained -7 speed grade for legacy timing budgets (vs EPM3064ATI44-4N)
- Doubling logic capacity when migrating from MAX 3000 to MAX 3000A (vs EPM3032ATC44-7)
Design Notes
Place 0.1 Β΅F ceramic decoupling capacitors within 3 mm of each VCCINT (pin 18) and VCCIO (pin 40) supply pin. Add a 10 Β΅F tantalum or ceramic bulk capacitor at the board-level 3.3 V plane near the CPLD. The four GND pins (10, 26, 35, plus one internal) must all be connected to a low-impedance ground plane for ISP reliability and signal-integrity - per MAX 3000A datasheet recommendation, use a continuous ground plane under the TQFP body with vias stitching every 5 mm.
Per IEEE 1149.1 JTAG specification, TCK requires a 4.7 kΞ© pull-up to VCCIO and TMS/TDI require 4.7 kΞ© pull-ups to VCCIO if the JTAG chain is not actively driven. The TDO output is open-drain on some Altera CPLDs and benefits from a 4.7 kΞ© pull-up. Route JTAG signals away from high-frequency switching nets (clock, PCI bus edges) and keep the chain under 6 inches total to avoid signal-integrity failures during ISP.
The four JTAG pins (TCK, TMS, TDI, TDO) on the EPM3064ATI44-7 cannot be reused as general-purpose I/O even when JTAG is unused - they are dedicated per IEEE 1149.1. If JTAG is not needed in production, leave TCK grounded or pulled low at the connector to prevent floating-pin noise injection. Additionally, the 'N' suffix denotes Pb-free finish; if your assembly line is not Pb-free compliant, choose the non-N variant. Verified datasheet document number is referenced generically as the MAX 3000A family datasheet (no specific document number was provided in the verified data).
Compliance Information
RoHS/REACH status for the EPM3064ATI44-7 (non-N suffix) was not provided in the verified web data; the 'N' suffixed variants (EPM3064ATI44-7N) are Pb-free per Altera ordering nomenclature. AEC-Q100 not applicable - this is a commercial/industrial-grade CPLD, not an automotive-qualified part. For automotive designs, choose automotive-qualified MAX V or MAX 10 variants.
