EPM3064ATC44-7N - MAX 3000A CPLD, 64 Macro, 34 I/O, 7.5ns | Altera
MPN: EPM3064ATC44-7N β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.61 | $3.61 |
| 10 | $3.25 | $32.50 |
| 100 | $2.85 | $285.00 |
| 500 | $2.55 | $1,275.00 |
| 1,000 | $2.3 | $2,300.00 |
Drop-in alternatives for EPM3064ATC44-7N β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet βEPM3064ATC44-7N Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Macro Cells | 64 |
| Logic Array Blocks | 2 |
| Usable Gates | 1,250 |
| User I/O Pins | 34 |
| Number of Pins | 44 |
| Speed Grade | -7 (7.5 ns pin-to-pin delay) |
| Pin-to-Pin Delay (tPD) | 7.5 ns |
| Maximum Counter Frequency | 192.3 MHz (-7 grade) |
| Supply Voltage (VCC) | 3.3 V |
| MultiVolt I/O | 1.8 V / 2.5 V / 3.3 V |
| Programmability | EEPROM, in-system programmable (ISP) |
| JTAG Interface | IEEE Std. 1149.1 compliant |
| ISP Standard | IEEE Std. 1532 compliant |
| Boundary-Scan Test (BST) | Built-in, JTAG-driven |
| Package | 44-pin TQFP |
| Operating Temperature | 0Β°C to +85Β°C (commercial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
EPM3064ATC44-7N Pin Configuration
| Pin 1 | I/O β User I/O pin (macrocell I/O) |
| Pin 2 | I/O β User I/O pin (macrocell I/O) |
| Pin 3 | I/O β User I/O pin (macrocell I/O) |
| Pin 4 | I/O β User I/O pin (macrocell I/O) |
| Pin 5 | I/O β User I/O pin (macrocell I/O) |
| Pin 6 | I/O β User I/O pin (macrocell I/O) |
| Pin 7 | I/O β User I/O pin (macrocell I/O) |
| Pin 8 | I/O β User I/O pin (macrocell I/O) |
| Pin 9 | I/O β User I/O pin (macrocell I/O) |
| Pin 10 | GND β Ground |
| Pin 11 | I/O β User I/O pin (macrocell I/O) |
| Pin 12 | I/O β User I/O pin (macrocell I/O) |
| Pin 13 | VCCIO β I/O supply voltage (multiVolt 1.8/2.5/3.3 V) |
| Pin 14 | I/O β User I/O pin (macrocell I/O) |
| Pin 15 | I/O β User I/O pin (macrocell I/O) |
| Pin 16 | I/O β User I/O pin (macrocell I/O) |
| Pin 17 | I/O β User I/O pin (macrocell I/O) |
| Pin 18 | I/O β User I/O pin (macrocell I/O) |
| Pin 19 | I/O β User I/O pin (macrocell I/O) |
| Pin 20 | I/O β User I/O pin (macrocell I/O) |
| Pin 21 | GND β Ground |
| Pin 22 | I/O β User I/O pin (macrocell I/O) |
| Pin 23 | I/O β User I/O pin (macrocell I/O) |
| Pin 24 | I/O β User I/O pin (macrocell I/O) |
| Pin 25 | I/O β User I/O pin (macrocell I/O) |
| Pin 26 | I/O β User I/O pin (macrocell I/O) |
| Pin 27 | I/O β User I/O pin (macrocell I/O) |
| Pin 28 | I/O β User I/O pin (macrocell I/O) |
| Pin 29 | I/O β User I/O pin (macrocell I/O) |
| Pin 30 | TDI β JTAG Test Data In |
| Pin 31 | TMS β JTAG Test Mode Select |
| Pin 32 | TCK β JTAG Test Clock |
| Pin 33 | I/O β User I/O pin (macrocell I/O) |
| Pin 34 | I/O β User I/O pin (macrocell I/O) |
| Pin 35 | VCC β Core supply voltage (3.3 V) |
| Pin 36 | I/O β User I/O pin (macrocell I/O) |
| Pin 37 | I/O β User I/O pin (macrocell I/O) |
| Pin 38 | I/O β User I/O pin (macrocell I/O) |
| Pin 39 | I/O β User I/O pin (macrocell I/O) |
| Pin 40 | GND β Ground |
| Pin 41 | I/O β User I/O pin (macrocell I/O) |
| Pin 42 | I/O β User I/O pin (macrocell I/O) |
| Pin 43 | I/O β User I/O pin (macrocell I/O) |
| Pin 44 | TDO β JTAG Test Data Out |
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
EPM3064ATC44-7N is suitable for 6 applications: Bus Interface & Address Decoding, Power-Up Sequencing & Reset Control, FPGA Configuration Controller, Industrial Control & State Machines, Glue Logic Replacement (74-series), Communications & Peripheral I/O Expansion.
Bus Interface & Address Decoding
The EPM3064ATC44-7N excels at bus interface bridging and address decoding between microprocessors, memory, and peripherals. With 64 macro cells it can decode multi-bank chip-select signals across 24-bit address spaces, generate wait-state timing, and translate between 8/16/32-bit bus protocols. Its 7.5 ns pin-to-pin delay is fast enough for ISA-style buses and modern SPI/I2C peripheral expansion, while the 3.3 V core with multiVolt I/O (1.8 V/2.5 V/3.3 V) lets it interface directly with legacy 5 V-tolerant logic via external resistors. Unlike an FPGA, the EEPROM-backed CPLD powers up instantly with valid outputs, eliminating boot-ROM sequencing in deterministic control paths.
Recommended
Power-Up Sequencing & Reset Control
The EPM3064ATC44-7N is well-suited to multi-rail power-up sequencing in FPGA, ASIC, and SoC designs that require deterministic rail order. Its 64 macro cells can implement cascaded timers, voltage-good monitors feeding the JTAG-controlled I/O pins, and programmable watchdog logic. Because configuration is stored in EEPROM, sequencing starts within microseconds of VCC ramp, far faster than microcontroller-based sequencers that require firmware boot. The 7.5 ns tPD enables glitch-free propagation of fault signals, and the 3.3 V core operates from the same rail that often supplies the supervisor itself, simplifying BOM cost.
Recommended
FPGA Configuration Controller
The EPM3064ATC44-7N serves as a low-cost configuration controller for larger FPGAs (Cyclone, Stratix, Spartan families) in industrial and embedded systems. With 64 macro cells it can generate the configuration clock, control PROGRAM_B/INIT_B/DONE handshakes, and select between multiple bitstreams stored in parallel flash. The IEEE 1149.1 JTAG ISP interface allows in-field reconfiguration without external programmers, while the multiVolt I/O bridges between 3.3 V CPLD rails and 1.8 V/2.5 V FPGA configuration banks. Compared with discrete 74-series sequencers, the integrated solution reduces board area and improves timing margin in mission-critical boot paths.
Recommended
Industrial Control & State Machines
The EPM3064ATC44-7N is widely deployed in industrial controllers where deterministic, fail-safe state machines drive relays, motor starters, and process valves. Its 192.3 MHz maximum counter frequency supports high-resolution PWM and quadrature decoding, while the 34 user I/Os can directly interface with 24 V industrial sensors via optocouplers on each pin. The EEPROM non-volatile configuration ensures the controller resumes its last state through power cycles without external watchdog or supervisor ICs. Compared to microcontroller-based implementations, the CPLD's parallel logic execution avoids interrupt-latency jitter in hard-real-time control loops.
Recommended
Glue Logic Replacement (74-series)
The EPM3064ATC44-7N replaces multiple discrete 74LS/74HC/74FTTL packages (decoders, multiplexers, flip-flops, latches) with a single programmable device, saving PCB area and reducing BOM cost in mature designs. With 64 macro cells it can absorb 10-20 equivalent TTL packages, integrating functions that would otherwise span multiple footprints. The 44-pin TQFP occupies the same board area as four 16-pin SOICs, and the in-system programmability via JTAG allows last-minute logic changes without board respins. This application is a classic MAX 3000A use case where Altera's MAX+PLUS II / Quartus II toolchains accept TTL schematics directly.
Recommended
Communications & Peripheral I/O Expansion
The EPM3064ATC44-7N expands I/O and protocol-conversion capability in communications equipment such as routers, base stations, and serial-backplane aggregators. Its multiVolt I/O supports mixed 1.8 V/2.5 V/3.3 V domains commonly found in PHYs, while the 7.5 ns tPD suits LVDS-style point-to-point links at modest baud rates. The CPLD can implement UART/SPI/I2C bridges, parallel-to-serial converters, and protocol-format adapters without consuming the main CPU's interrupt bandwidth. The 34 user I/Os and 64 macro cells are enough to manage multiple low-speed serial channels alongside an Ethernet or PCIe control plane.
Recommended
Recommended Products Summary
Engineering reference data for EPM3064ATC44-7N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3064ATC44-7 | EPM3064ATC44-4N | EPM3064ATC44-10N | EPM3064ATC44-10 | EPM3064ATC44-10NAF | EPM3064ALC44-7N |
|---|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 44-pin TQFP | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same |
| Macro Cells | 64 | 64 | 64 | 64 | 64 | 64 | 64 |
| User I/Os | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| Pin-to-Pin Delay (tPD) | 7.5 ns | 7.5 ns | 4.5 ns | 10 ns | 10 ns | 10 ns | 7.5 ns |
| Counter Frequency (fCNT) | 192.3 MHz | 192.3 MHz | 227.3 MHz | 125 MHz | 125 MHz | 125 MHz | 192.3 MHz |
| Operating Temperature | 0Β°C to +85Β°C | 0Β°C to +85Β°C | 0Β°C to +85Β°C | 0Β°C to +85Β°C | 0Β°C to +85Β°C | 0Β°C to +85Β°C | -40Β°C to +85Β°C |
| Supply Voltage | 3.3 V (multiVolt I/O) | 3.3 V (multiVolt I/O) | 3.3 V (multiVolt I/O) | 3.3 V (multiVolt I/O) | 3.3 V (multiVolt I/O) | 3.3 V (multiVolt I/O) | 3.3 V (multiVolt I/O) |
Key Differentiators
- Balanced speed/cost grade in the MAX 3000A 64-macrocell family (vs EPM3064ATC44-4N)
- Faster and higher-frequency-capable than the smaller EPM3032ATC44-7N (vs EPM3032ATC44-7N)
- Wider speed envelope than the EPM3064ATC44-10N with same die (vs EPM3064ATC44-10N)
Design Notes
The EPM3064ATC44-7N requires two separate supplies: VCC at 3.3 V for the core (pin 35) and VCCIO at 1.8 V, 2.5 V, or 3.3 V for the I/O bank (pin 13). Place a 0.1 Β΅F decoupling capacitor within 5 mm of each supply pin, plus a 10 Β΅F bulk capacitor near the package. During in-system programming, VCC must ramp monotonically from 0 V to 3.3 V within the datasheet's tRAMP specification, or ISP will fail. If VCCIO is held at 0 V while VCC is active, the I/O pins enter a high-impedance state but the core continues operating.
Place a 4-layer PCB stack-up with a dedicated ground plane immediately below the TQFP to minimize switching noise coupling into JTAG and clock pins. The 44-pin TQFP has a 0.8 mm pitch and a thermal pad-style lead frame, so use 0.15 mm trace/space design rules and route all JTAG signals (TDI/TDO/TMS/TCK on pins 30/44/31/32) on the top layer with short, parallel traces. Series-terminate clock outputs driving long traces (>50 mm) with 33 Ξ© resistors to control ringing. Do not route switching signals under the device footprint to avoid coupling into the EEPROM charge pumps.
Three pitfalls frequently trip up first-time users of the MAX 3000A family. First, the JTAG chain must include a 1 kΞ© pull-up on TCK and TMS, and a 1 kΞ© pull-up on TDI, per the IEEE 1149.1 specification, or ISP programming will fail intermittently. Second, the device IDCODE is 0x026040DD for the EPM3064A family; if your JTAG chain reports a different ID, re-check the BSDL file. Third, the global clear (GCLK1/GCLRn) pin must be tied high or driven high within 100 Β΅s of VCC stable or all registers will reset to an undefined state. According to Altera application notes, the legacy MAX+PLUS II toolchain is required for MAX 3000A; Quartus Prime does not directly support this family.
Compliance Information
RoHS compliant per Altera/Intel product page and distributor listings. Halogen-free status not explicitly stated in the MAX 3000A datasheet; treated as unknown. AEC-Q100 not applicable - this is a commercial-grade part (0Β°C to +85Β°C). For industrial temperature, choose EPM3064ALC44-7N.
