EPM7256AETC144-10N - MAX 7000A 256-Macro CPLD, 10ns TQFP-144 | Intel
MPN: EPM7256AETC144-10N ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.2 | $252.00 |
| 100 | $21.85 | $2,185.00 |
| 500 | $18.4 | $9,200.00 |
| 1,000 | $15.95 | $15,950.00 |
Drop-in alternatives for EPM7256AETC144-10N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPM7256AETC144-10
✅ Drop-In✓ In Stock
$31.4 / Unit
View Datasheet →EPM7256AETC144-10N Maximum Ratings & Electrical Characteristics
| Family | MAX 7000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Usable Gates | 5,000 |
| Macro Cells | 256 |
| Logic Array Blocks | 16 |
| Maximum User I/O Pins | 120 (in 144-pin TQFP) |
| Pin-to-Pin Propagation Delay (tPD) | 10 ns |
| Maximum Internal Frequency | 95.2 MHz |
| Supply Voltage (Core) | 3.3 V |
| I/O Voltage Tolerance | 5 V-tolerant |
| Configuration Memory | EEPROM (non-volatile, in-system programmable) |
| Programming Interface | IEEE 1149.1 JTAG (ISP) |
| Package | TQFP-144 (ETC suffix) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) |
| Technology | CMOS, EEPROM-based |
| Pin Compatibility | Pin-compatible with 5.0V MAX 7000S family |
EPM7256AETC144-10N tqfp-144 (etc suffix) Pin Configuration Guide
Complete pinout information for EPM7256AETC144-10N (tqfp-144 (etc suffix) package) with 120 (in 144-pin TQFP) pins. This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for EPM7256AETC144-10N.
Refer to the datasheet for full pin configuration.
Estimated pin count: 120 (in 144-pin TQFP) pins (digital package)
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
EPM7256AETC144-10N is suitable for 6 applications: PCI/ISA Bus Address Decoding, Telecommunications Line Card Glue Logic, Industrial Control State Machine, Legacy 5V System Glue Logic Replacement, Peripheral Interface Bridging, Test Equipment Front Panel Logic.
PCI/ISA Bus Address Decoding
The EPM7256AETC144-10N fits PCI/ISA bus address decoding applications with its 256 macro cells and 10 ns pin-to-pin propagation delay. Decoding multi-channel bus addresses within a single clock period requires the deterministic sub-15 ns tPD that this MAX 7000A device delivers. With 120 user I/O available in the 144-pin TQFP, designers can implement multiple decoder channels (chip-select logic, interrupt acknowledge, DMA acknowledge) on one device. The non-volatile EEPROM configuration means the decoder is active at power-on without any boot delay - critical for ISA bus timing where the CPU asserts address lines within nanoseconds of reset de-assertion. The 5V-tolerant I/O interfaces directly with 5V PCI/ISA signalling without external level shifters, simplifying board design.
Recommended
Telecommunications Line Card Glue Logic
The EPM7256AETC144-10N is well suited for telecommunications line card glue-logic applications where deterministic timing and high I/O density are required. Its 120 user I/O pins handle multi-channel TDM (Time Division Multiplexing) bus aggregation, while the 95.2 MHz maximum internal frequency supports clock rates up to OC-1/STM-0. The 3.3V core reduces power consumption versus 5V-only predecessors, important for densely populated central-office line cards. Its instant-on EEPROM configuration eliminates bitstream load delays, ensuring the device is fully operational at the moment the line card powers up. JTAG-based in-system programmability allows field upgrades of the glue-logic personality without removing the line card from service.
Recommended
Industrial Control State Machine
Industrial control applications rely on the EPM7256AETC144-10N's combination of 256 macro cells, 16 logic array blocks, and deterministic 10 ns tPD to implement complex state machines for PLCs, motor controllers, and process automation. The 16 LAB architecture allows partitioning of the design into independent state machines - e.g. one per axis of a multi-axis motion controller. The extended industrial temperature range (-40C to +85C) ensures reliable operation in factory-floor environments. Five-volt tolerant I/O interfaces directly with industrial sensors and 24V optically-isolated input modules via simple resistor dividers. Non-volatile configuration retains the state machine personality through power cycles, eliminating any boot-time programming sequence.
Recommended
Legacy 5V System Glue Logic Replacement
Replacing legacy 5V PAL/GAL glue logic with the EPM7256AETC144-10N is straightforward because the device is pin-compatible with the 5.0V MAX 7000S family, allowing board-level migration without PCB changes. Engineers can consolidate dozens of discrete PAL chips into a single 256-macro-cell CPLD, dramatically reducing board area and power consumption. The 5V-tolerant I/O ensures direct interface with remaining 5V components on the board. With 95.2 MHz internal frequency and 10 ns tPD, the device meets or improves the timing margins of the legacy 5V PLDs it replaces. The JTAG in-system programmability enables post-assembly logic updates, eliminating socketed-PAL rework cycles.
Recommended
Peripheral Interface Bridging
The EPM7256AETC144-10N excels at peripheral interface bridging applications such as connecting microprocessors to memory banks, FIFOs, or peripheral ASICs through custom glue logic. With 120 user I/O, the device can bridge between a 32-bit microprocessor bus (32 data + 24 address + 10 control lines) and multiple peripherals simultaneously. The 10 ns tPD maintains bus timing margins even at 33 MHz local bus frequencies. Multiple logic array blocks allow independent bridging domains, useful when interfacing asynchronous peripherals that require separate timing islands. Non-volatile configuration means the bridge is operational immediately at system reset without any boot delay.
Recommended
Test Equipment Front Panel Logic
Test and measurement equipment such as oscilloscopes, logic analyzers, and signal generators employ the EPM7256AETC144-10N for front-panel control logic - LED multiplexing, switch debouncing, rotary encoder decoding, and LCD segment driving. The 256 macro cells easily handle all these functions plus custom instrument-specific glue logic in a single device. With 120 user I/O available, the CPLD connects directly to large front-panel button/keypad matrices and 7-segment display arrays without external mux/demux chips. The deterministic 10 ns propagation delay ensures button-press detection without software debounce latency. Extended temperature range ensures reliable operation in laboratory and field-test environments.
Recommended
Recommended Products Summary
Engineering reference data for EPM7256AETC144-10N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM7256AETC144-10 | EPM7256AETC100-10N | EPM7256AEFC100-10N | EPM7256AEFI100-7 | EPM7256AEFC256-5N |
|---|---|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | TQFP-144 | TQFP-144 (same) | TQFP-100 (different) | TQFP-100 (different) | TQFP-100 (different) | BGA-256 (different) |
| Macro Cells | 256 | 256 | 256 | 256 | 256 | 256 |
| Pin-to-Pin Delay (tPD) | 10 ns | 10 ns (same) | 10 ns (same) | 10 ns (same) | 7 ns (faster) | 5 ns (faster) |
| Maximum Internal Frequency | 95.2 MHz | 95.2 MHz | 95.2 MHz | 95.2 MHz | [DATA_NEEDED] | [DATA_NEEDED] |
| Usable Gates | 5,000 | 5,000 | 5,000 | 5,000 | 5,000 | 5,000 |
| User I/O | 120 | 120 (same) | [DATA_NEEDED: 100-pin TQFP I/O count] | [DATA_NEEDED: 100-pin TQFP I/O count] | [DATA_NEEDED] | [DATA_NEEDED: BGA-256 I/O count] |
| Finish / Lead-Free | Lead-free (N suffix) | Leaded (no N suffix) | Lead-free | Lead-free | Lead-free | Lead-free |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Supply Voltage | 3.3 V core, 5 V-tolerant I/O | 3.3 V core, 5 V-tolerant | 3.3 V core, 5 V-tolerant | 3.3 V core, 5 V-tolerant | 3.3 V core, 5 V-tolerant | 3.3 V core, 5 V-tolerant |
Key Differentiators
- Same silicon die as EPM7256AETC144-10, different lead finish (vs EPM7256AETC144-10)
- Faster pin-to-pin delay than EPM7256AETC144-10 (vs EPM7256AEFI100-7)
- Higher pin density than 100-pin TQFP variants (vs EPM7256AETC100-10N)
Design Notes
The 144-pin TQFP package requires careful PCB layout: provide a continuous ground plane beneath the device, use 0.1 uF decoupling capacitors on every VCCINT/VCCIO pin pair within 5 mm of the package, and route all JTAG signals (TCK, TMS, TDI, TDO) as a matched-length group with 10 kOhm pull-up on TMS and 1 kOhm pull-down on TCK per Altera MAX 7000A design guidelines. Maintain at least 8 mil trace width and 8 mil spacing for signal integrity on the 0.5 mm pitch TQFP land pattern.
Do not exceed the maximum I/O toggle rate of approximately 100 MHz per output - ground bounce on heavily-loaded outputs can cause logic errors. The ISP_Done bit must be checked after in-system programming to verify configuration completion; do not assume programming succeeded without polling this status bit. When migrating from MAX 7000S (5V) to MAX 7000A (3.3V), ensure all connected logic is 5V-tolerant; connecting 3.3V-only signals to non-tolerant 5V inputs will damage the device.
Estimated: at 95.2 MHz internal frequency with all 256 macro cells active, typical core current consumption is approximately 100-300 mA from VCCINT (3.3V). Bulk decoupling of 33 uF tantalum plus 0.1 uF ceramic on each VCCINT pin is recommended. I/O current scales with toggle rate and load capacitance; for capacitive loads above 50 pF, add 22 Ohm series resistors to limit edge-rate-induced ground bounce. Total board-level power budget should allocate at least 1.5W for the CPLD plus margin for switching transients.
Compliance Information
RoHS compliant by N-suffix designation per Altera ordering nomenclature. REACH, halogen-free, and conflict-minerals status not explicitly stated in the verified web data and marked unknown.
