EPM3064ATC44-7 - MAX 3000A CPLD, 64 Macrocells, 44-TQFP | Altera
MPN: EPM3064ATC44-7 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.2 | $72.00 |
| 100 | $5.8 | $580.00 |
| 500 | $4.95 | $2,475.00 |
| 1,000 | $4.2 | $4,200.00 |
Drop-in alternatives for EPM3064ATC44-7 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
EPM3064ATC44-7N
β Drop-Inβ In Stock
$2.3 / Unit
View Datasheet βEPM3064ATC44-4N
β Drop-Inβ In Stock
$3.45 / Unit
View Datasheet βEPM3064ATC44-10N
β Drop-Inβ In Stock
$5.1 / Unit
View Datasheet βEPM3064ATC44-10
β Drop-Inβ In Stock
$4.35 / Unit
View Datasheet βEPM3064ATC44-7 Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Macrocells | 64 |
| Logic Array Blocks | 4 |
| Usable Gates | 1.25K |
| User I/O Pins | 34 |
| Pin Count | 44 |
| Package | TQFP-44 |
| Speed Grade | -7 (7.5 ns tPD) |
| Pin-to-Pin Propagation Delay | 7.5 ns |
| Maximum Counter Frequency | 192.3 MHz |
| Supply Voltage (Core) | 3.3 V |
| I/O Logic Compatibility | 5.0 V / 3.3 V / 2.5 V (MultiVolt) |
| Programming Interface | IEEE Std. 1149.1 JTAG (ISP) |
| Process Technology | CMOS EEPROM |
| Operating Temperature | 0C to +70C (Commercial) |
| Mounting Type | Surface Mount |
| RoHS Status | unknown |
EPM3064ATC44-7 Pin Configuration
| Pin 1 | I/O β General-purpose user I/O pin |
| Pin 2 | I/O β General-purpose user I/O pin |
| Pin 3 | I/O β General-purpose user I/O pin |
| Pin 4 | I/O β General-purpose user I/O pin |
| Pin 5 | I/O β General-purpose user I/O pin |
| Pin 6 | GND β Ground |
| Pin 7 | I/O β General-purpose user I/O pin |
| Pin 8 | I/O β General-purpose user I/O pin |
| Pin 9 | I/O β General-purpose user I/O pin |
| Pin 10 | I/O β General-purpose user I/O pin |
| Pin 11 | I/O β General-purpose user I/O pin |
| Pin 12 | I/O β General-purpose user I/O pin |
| Pin 13 | TDI β JTAG Test Data In |
| Pin 14 | TMS β JTAG Test Mode Select |
| Pin 15 | TCK β JTAG Test Clock |
| Pin 16 | VCC β 3.3V core supply |
| Pin 17 | I/O β General-purpose user I/O pin |
| Pin 18 | I/O β General-purpose user I/O pin |
| Pin 19 | I/O β General-purpose user I/O pin |
| Pin 20 | I/O β General-purpose user I/O pin |
| Pin 21 | GND β Ground |
| Pin 22 | I/O β General-purpose user I/O pin |
| Pin 23 | I/O β General-purpose user I/O pin |
| Pin 24 | I/O β General-purpose user I/O pin |
| Pin 25 | I/O β General-purpose user I/O pin |
| Pin 26 | I/O β General-purpose user I/O pin |
| Pin 27 | I/O β General-purpose user I/O pin |
| Pin 28 | I/O β General-purpose user I/O pin |
| Pin 29 | I/O β General-purpose user I/O pin |
| Pin 30 | I/O β General-purpose user I/O pin |
| Pin 31 | GND β Ground |
| Pin 32 | I/O β General-purpose user I/O pin |
| Pin 33 | I/O β General-purpose user I/O pin |
| Pin 34 | I/O β General-purpose user I/O pin |
| Pin 35 | I/O β General-purpose user I/O pin |
| Pin 36 | I/O β General-purpose user I/O pin |
| Pin 37 | I/O β General-purpose user I/O pin |
| Pin 38 | VCC β 3.3V core supply |
| Pin 39 | I/O β General-purpose user I/O pin |
| Pin 40 | TDO β JTAG Test Data Out |
| Pin 41 | I/O β General-purpose user I/O pin |
| Pin 42 | I/O β General-purpose user I/O pin |
| Pin 43 | I/O β General-purpose user I/O pin |
| Pin 44 | I/O β General-purpose 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
EPM3064ATC44-7 is suitable for 6 applications: Bus Decoding and Address Latch Replacement, Power-Up Sequencing Logic, Peripheral Interface Glue Logic, Industrial Control State Machines, Legacy PCI Local Bus Interface, Test and Measurement Front-End Logic.
Bus Decoding and Address Latch Replacement
The EPM3064ATC44-7 is well suited for bus decoding and address-latch replacement in embedded systems where deterministic timing is critical. With 64 macrocells and a 7.5 ns pin-to-pin delay, it can decode up to 64 unique address combinations while comfortably handling 50 MHz memory buses. The MultiVolt I/O supports 5.0V microprocessor buses alongside 3.3V memory without external level shifters. Placed between a microcontroller and SRAM/Flash, it eliminates discrete 74-series glue logic, freeing board space and improving reliability. The non-volatile EEPROM configuration means instant-on decoding with no boot delay - critical for systems that must respond immediately at power-up.
Recommended
Power-Up Sequencing Logic
The EPM3064ATC44-7 provides reliable power-up sequencing logic for multi-rail systems, ensuring DC-DC converters, ASICs, and FPGAs start in the correct order. Its 34 user I/Os can monitor up to 8-10 enable signals and assert up to 16-20 sequencing outputs with programmable delays. The instant-on EEPROM configuration means sequencing logic is active within microseconds of power-up, before any MCU boots - critical for hardware-based sequencing that cannot depend on software. Its deterministic 7.5 ns propagation enables precise timing across multiple rails. The JTAG ISP interface allows in-field sequencing-logic updates without board removal.
Recommended
Peripheral Interface Glue Logic
The EPM3064ATC44-7 is widely used as glue logic between microcontrollers, ASICs, and peripherals with mismatched interfaces. Its 64 macrocells can implement multiple interface bridges (UART to SPI, I2C to parallel GPIO) within a single chip, replacing 3-5 discrete logic ICs. The MultiVolt I/O interface enables direct connection to 5.0V, 3.3V, and 2.5V devices without external level translation. Designers leverage Quartus II to capture complex interface logic as HDL and synthesize it into the CPLD, dramatically reducing PCB area and BOM cost in industrial control and consumer products.
Recommended
Industrial Control State Machines
The EPM3064ATC44-7 implements deterministic state machines for industrial automation, replacing mechanical relays and discrete logic in motor control, conveyor sequencing, and process control. With 192.3 MHz maximum counter frequency and 7.5 ns propagation, it can service sensors and actuators in real time at industrial cycle rates. Its commercial operating temperature range (0C to +70C) suits factory-floor enclosures. The 34 user I/Os handle multiple sensor inputs and relay outputs from a single device, while JTAG ISP allows firmware updates without removing boards from equipment.
Recommended
Legacy PCI Local Bus Interface
The EPM3064ATC44-7 is PCI-SIG Revision 2.2 compliant at its -7 speed grade, making it suitable for legacy 33 MHz PCI Local Bus designs requiring address decoding, command decoding, and parity logic. The 7.5 ns pin-to-pin delay comfortably meets the 33 MHz PCI timing budget with substantial margin. The MultiVolt I/O connects directly to 5.0V PCI signals without external buffers. For new PCI Express designs, consider migrating to MAX II or Cyclone IV FPGAs, but for maintaining legacy PCI add-in cards and embedded systems, the EPM3064ATC44-7 remains a proven solution.
Recommended
Test and Measurement Front-End Logic
The EPM3064ATC44-7 provides programmable front-end logic for test and measurement instruments, handling signal routing, range switching, and trigger conditioning before signals reach ADCs or counters. Its deterministic 7.5 ns propagation preserves measurement timing accuracy, while 64 macrocells implement complex trigger logic and timing sequences. The JTAG ISP allows engineers to update measurement algorithms without hardware changes - useful during prototype development. The 44-pin TQFP package suits compact bench instruments and OEM test modules where board space is constrained.
Recommended
Recommended Products Summary
Engineering reference data for EPM3064ATC44-7 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3064ATC44-7N | EPM3064ATC44-4N | EPM3064ATC44-10N |
|---|---|---|---|---|
| Package | TQFP-44 | TQFP-44 (same) | TQFP-44 (same) | TQFP-44 (same) |
| Brand | Altera | Altera | Altera | Altera |
| Macrocells | 64 | 64 | 64 | 64 |
| Speed Grade (tPD) | 7.5 ns (-7) | 7.5 ns (-7) | 4 ns (-4) | 10 ns (-10) |
| Max Counter Frequency | 192.3 MHz | 192.3 MHz | 222.2 MHz | 152.7 MHz |
| User I/Os | 34 | 34 | 34 | 34 |
| Lead-Free / RoHS | Non-RoHS | Lead-free RoHS | Lead-free RoHS | Lead-free RoHS |
| PCI-SIG Compliance | Yes (Rev 2.2) | Yes (Rev 2.2) | Yes | Yes (Rev 2.2) |
Key Differentiators
- Lead-free RoHS-compliant drop-in variant available with same die (vs EPM3064ATC44-7N)
- Faster -4 speed grade upgrade path on same footprint (vs EPM3064ATC44-4N)
- Lower-cost -10 speed grade for non-timing-critical designs (vs EPM3064ATC44-10N)
Design Notes
Decouple each VCC pin with a 0.1 uF ceramic capacitor placed within 5 mm of the device, with a 10 uF tantalum or aluminum polymer bulk capacitor on the 3.3V supply rail. The TQFP-44 package has four VCC pins and three GND pins distributed around the package; ensure all are connected with wide traces to maintain signal integrity and reduce ground bounce. For MultiVolt I/O mixing 5.0V and 3.3V signals, route the higher-voltage traces with at least 0.2 mm spacing from 3.3V traces to prevent coupling.
Do not confuse the EPM3064ATC44-7 (this part, 7.5 ns) with the EPM3064ATC44-7N (lead-free, identical speed) - both have the same datasheet ordering code but different plating. Verify the marking on physical parts before assembly, as dual-marking schemes have caused confusion between the EPM3064ATC44-7N and EPM3064ATI44-10N per Altera Community discussion 323852. For new designs, ensure JTAG pins TCK/TMS/TDI/TDO have 10 kohm pull-ups to VCC(IO) as recommended by the MAX 3000A datasheet, otherwise ISP programming may fail intermittently.
Assign high-frequency output signals to pins adjacent to GND pins to minimize simultaneous switching noise (SSN). The MAX 3000A datasheet recommends limiting simultaneously switching outputs to a maximum of 16 pins per I/O bank to avoid ground bounce exceeding 0.8V. Use the Quartus II fitter reports to verify I/O bank utilization and SSN analysis before layout signoff. For designs migrating from EPM3032ATC44 to EPM3064ATC44, the pinout is identical in TQFP-44, but verify any I/O voltage reference (VREF) pin assignments in the Quartus pin planner.
Compliance Information
EPM3064ATC44-7 is non-RoHS (uses lead plating); the EPM3064ATC44-7N variant is the lead-free RoHS-compliant equivalent. AEC-Q100 not applicable for commercial-grade CPLD; industrial-grade EPM3064ATI44 variants exist for extended temperature applications. REACH, halogen-free, and conflict-minerals compliance status unknown from verified web data.
