EPM3064ATI44-4N - 64 Macro Cell 3.3V CPLD, 44-TQFP | Altera
MPN: EPM3064ATI44-4N β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.95 | $8.95 |
| 10 | $7.85 | $78.50 |
| 100 | $6.42 | $642.00 |
| 500 | $5.1 | $2,550.00 |
| 1,000 | $4.25 | $4,250.00 |
Drop-in alternatives for EPM3064ATI44-4N β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet βEPM3064ATI44-4N Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Logic Elements / Macrocells | 64 macrocells |
| Usable Gates | 1,250 gates |
| Number of Logic Array Blocks (LABs) | 4 LABs (16 macrocells each) |
| Maximum Operating Frequency | 222.2 MHz |
| Pin-to-Pin Propagation Delay (tPD) | 4.5 ns (-4 speed grade) |
| Supply Voltage - Core (VCCINT) | 3.3 V |
| Supply Voltage - I/O (VCCIO) | 3.3 V or 2.5 V |
| User I/O Pins | 34 I/O |
| Package | 44-pin TQFP |
| Operating Temperature | -40C to +85C (industrial) |
| Programming Interface | IEEE Std. 1149.1 JTAG, IEEE Std. 1532 ISP |
| Configuration Memory | EEPROM (non-volatile) |
| Mounting Type | Surface Mount |
EPM3064ATI44-4N Pin Configuration
| Pin 1 | I/O β User I/O pin (bank 1) |
| Pin 2 | I/O β User I/O pin (bank 1) |
| Pin 3 | I/O β User I/O pin (bank 1) |
| Pin 4 | I/O β User I/O pin (bank 1) |
| Pin 5 | VCCINT β Core supply voltage (3.3 V) |
| Pin 6 | I/O β User I/O pin (bank 1) |
| Pin 7 | I/O β User I/O pin (bank 1) |
| Pin 8 | I/O β User I/O pin (bank 1) |
| Pin 9 | I/O β User I/O pin (bank 1) |
| Pin 10 | GND β Ground |
| Pin 11 | I/O β User I/O pin (bank 1) |
| Pin 12 | I/O β User I/O pin (bank 1) |
| Pin 13 | I/O β User I/O pin (bank 2) |
| Pin 14 | I/O β User I/O pin (bank 2) |
| Pin 15 | I/O β User I/O pin (bank 2) |
| Pin 16 | I/O β User I/O pin (bank 2) |
| Pin 17 | I/O β User I/O pin (bank 2) |
| Pin 18 | I/O β User I/O pin (bank 2) |
| Pin 19 | I/O β User I/O pin (bank 2) |
| Pin 20 | I/O β User I/O pin (bank 2) |
| Pin 21 | VCCIO β I/O supply voltage (3.3 V or 2.5 V) |
| Pin 22 | I/O β User I/O pin (bank 2) |
| Pin 23 | I/O β User I/O pin (bank 2) |
| Pin 24 | I/O β User I/O pin (bank 2) |
| Pin 25 | I/O β User I/O pin (bank 2) |
| Pin 26 | GND β Ground |
| Pin 27 | I/O β User I/O pin (bank 2) |
| Pin 28 | TDI β JTAG Test Data In |
| Pin 29 | TMS β JTAG Test Mode Select |
| Pin 30 | TCK β JTAG Test Clock |
| Pin 31 | TDO β JTAG Test Data Out |
| Pin 32 | GND β Ground |
| Pin 33 | I/O β User I/O pin (bank 1) |
| Pin 34 | I/O β User I/O pin (bank 1) |
| Pin 35 | I/O β User I/O pin (bank 1) |
| Pin 36 | I/O β User I/O pin (bank 1) |
| Pin 37 | I/O β User I/O pin (bank 1) |
| Pin 38 | I/O β User I/O pin (bank 1) |
| Pin 39 | DEV_OE β Device-wide output enable (active low, optional) |
| Pin 40 | I/O β User I/O pin (bank 1) |
| Pin 41 | I/O β User I/O pin (bank 1) |
| Pin 42 | I/O β User I/O pin (bank 1) |
| Pin 43 | DEV_CLRn β Device-wide clear (active low, optional) |
| Pin 44 | GCLK β Global clock input |
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
EPM3064ATI44-4N is suitable for 6 applications: Bus Decoding and Address Mapping, Glue Logic Replacement, Power-on Sequencing and Reset Control, Peripheral Interface Bridging, State Machine Controllers, LED and Display Driving Multiplexers.
Bus Decoding and Address Mapping
The EPM3064ATI44-4N's 64 macrocells and 34 I/O pins are well matched to legacy microprocessor bus decoding tasks where deterministic timing matters. Its 4.5 ns pin-to-pin delay in the -4 speed grade enables single-cycle address decoding at frequencies up to 222.2 MHz, allowing the CPLD to qualify chip-select and read/write signals within one clock cycle of an 8/16-bit MPU. Unlike an FPGA, configuration is stored in on-chip EEPROM, so the device powers up in a defined valid state without external boot memory. Industrial -40C to +85C operation makes it suitable for factory-floor controllers, instrumentation, and outdoor telecom equipment. Place the CPLD adjacent to the MPU and bus buffers; route TCK/TMS/TDI/TDO to a JTAG header for in-system programming.
Recommended
Glue Logic Replacement
The EPM3064ATI44-4N replaces multiple 74-series TTL/CMOS packages (gates, decoders, multiplexers, latches) with a single programmable device, reducing board area and BOM count. With 1,250 usable gates across 4 LABs, it can absorb the equivalent of 8 to 12 discrete MSI packages. The 5V-tolerant inputs allow direct interface to legacy 5V logic while operating from a 3.3V core, simplifying mixed-voltage retrofit designs. JTAG-based ISP lets you iterate logic without removing the part from the board. The 44-TQFP footprint exposes enough I/O (34 user pins) for medium-complexity glue networks. Designers should compile with Quartus MAX+PLUS II or Quartus Prime (legacy support) and verify fitter reports for timing closure.
Recommended
Power-on Sequencing and Reset Control
The EPM3064ATI44-4N is ideal for sequenced power-rail control in multi-voltage systems because it powers up in a deterministic state from non-volatile EEPROM and does not require external configuration memory. The DEV_CLRn and DEV_OE dedicated pins let designers force all registers to a known state and tri-state outputs during brown-out events. The -4 speed grade provides 4.5 ns propagation delay, which is fast enough to sequence 3.3V and 2.5V rails before downstream ASICs exit reset. The 5V-tolerant inputs enable monitoring of legacy 5V power-good signals. Industrial temperature grade supports automotive and outdoor industrial sequencing applications. Connect VCCINT to the 3.3V rail and tie VCCIO to match downstream logic I/O voltage.
Recommended
Peripheral Interface Bridging
The EPM3064ATI44-4N bridges incompatible peripheral interfaces (for example, an 8-bit parallel bus to SPI, or UART to I2C) using its 64 macrocells and configurable I/O voltage (3.3V or 2.5V VCCIO). The 222.2 MHz internal frequency supports high-throughput bridging, while the 5V-tolerant inputs accept legacy 5V microcontroller signals. With 34 user I/Os, it has enough pins for typical bridge functions plus status LEDs and JTAG. The non-volatile configuration ensures the bridge powers up ready to operate. Industrial temperature grade suits factory, automotive, and outdoor deployments. Use Quartus Prime legacy support to compile HDL descriptions, and verify pin assignments against the 44-TQFP package diagram.
Recommended
State Machine Controllers
The EPM3064ATI44-4N's macrocell architecture is well suited to Moore and Mealy state machines because each macrocell contains a programmable flip-flop, product-term logic, and dedicated clock/reset control. With 64 macrocells and 4 LABs, designers can implement state machines of meaningful complexity (10 to 32 states) along with associated output decoding. The 4.5 ns pin-to-pin delay enables state transitions at controller clock rates up to 100 MHz. Non-volatile EEPROM configuration means the controller is ready immediately at power-up, which is critical for safety interlocks and industrial control loops. Industrial -40C to +85C operation supports harsh environments. Implement with AHDL, VHDL, or Verilog in the Quartus MAX+PLUS II toolchain.
Recommended
LED and Display Driving Multiplexers
The EPM3064ATI44-4N can multiplex LED matrix rows, seven-segment displays, or character LCDs because it provides 34 user I/O pins and supports VCCIO at 3.3V or 2.5V to match LED driver levels. The deterministic 4.5 ns delay enables clean row/column switching without ghosting, and the 222.2 MHz internal clock supports high-refresh-rate multiplexing. The non-volatile EEPROM storage means the display pattern is ready at power-on without boot delay. Industrial temperature grade supports outdoor signage and automotive instrument clusters. Drive LEDs with external transistors or constant-current drivers because the CPLD's I/O pins are not designed to source high currents directly.
Recommended
Recommended Products Summary
Engineering reference data for EPM3064ATI44-4N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3064ATC44-4N | EPM3064ATI44-10N | EPM3064ATC44-7N | EPM3064ATC44-10N | EPM3064ALI44-10N | EPM3064ALC44-4N |
|---|---|---|---|---|---|---|---|
| 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 |
| Macrocells | 64 | 64 | 64 | 64 | 64 | 64 | 64 |
| Speed Grade (tPD) | 4.5 ns (-4) | 4.5 ns (-4) | 10 ns (-10) | 7.5 ns (-7) | 10 ns (-10) | 10 ns (-10) | 4.5 ns (-4) |
| VCCINT (Core) | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Temperature Grade | Industrial -40C to +85C | Commercial 0C to +70C | Industrial -40C to +85C | Commercial 0C to +70C | Commercial 0C to +70C | Industrial -40C to +85C | Commercial 0C to +70C |
| Usable Gates | 1,250 | 1,250 | 1,250 | 1,250 | 1,250 | 1,250 | 1,250 |
| User I/O Pins | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND | NRND |
Key Differentiators
- Fastest speed grade in the MAX 3000A 44-TQFP family (vs EPM3064ATI44-10N)
- Industrial temperature grade for harsh environments (vs EPM3064ATC44-4N)
- Dual-supply flexibility with 5V-tolerant inputs (vs MAX II CPLDs (e.g., EPM240T100I5N))
Design Notes
The EPM3064ATI44-4N requires two separate supply rails: VCCINT at 3.3V powers the core logic and EEPROM configuration, while VCCIO at 3.3V or 2.5V sets the output voltage levels. Both rails must ramp monotonically together within the datasheet-specified tRAMP (typically 50 ms or longer) to avoid partially-configured states. Decouple each VCCINT and VCCIO pin with a 0.1 uF ceramic capacitor placed within 5 mm of the package pin, and add a 10 uF bulk tantalum or ceramic capacitor on each rail. Inputs are 5V-tolerant, allowing direct connection to legacy 5V logic without level shifters, but outputs swing only to VCCIO levels.
Use a four-layer PCB with a dedicated ground plane under the TQFP package to minimize inductance on the VCCINT and VCCIO rails. Route TCK, TMS, TDI, and TDO as a matched-length bus (within 1 cm of each other) to a 2x5 or 1x6 JTAG header with 4.7 kohm pull-ups on TCK, TMS, and TDI per IEEE 1149.1 recommendations. Place the JTAG header at the board edge for easy probe access. Avoid routing JTAG signals near switching power or high-frequency clock traces to prevent programming errors. The DEV_CLRn and DEV_OE pins can be left unconnected (internal pull-ups enabled) if global clear and output enable are not needed in the design.
Common pitfalls when designing with the EPM3064ATI44-4N include (1) failing to provide both VCCINT and VCCIO rails (the device will not function with only one rail powered), (2) leaving JTAG pins floating instead of pulling them to known logic levels (causes ISP failures), (3) using the -10 speed grade when timing closure requires 4.5 ns delays, (4) attempting to substitute the commercial-temperature ATC variant into industrial designs (verify ambient worst case first), and (5) using Quartus Prime without legacy MAX+PLUS II support for older MAX 3000A designs (the latest Quartus may not program MAX 3000A, requiring the legacy programmer). Always generate the .pof file and use the ByteBlasterMV or USB-Blaster for ISP.
Compliance Information
Compliance status not specified in the Verified Web Data; the Altera MAX 3000A family was originally released before RoHS was widely mandated, and many legacy variants were non-RoHS. Use [DATA_NEEDED] for fields where the Verified Web Data does not provide explicit compliance values.
