EPM7128SLC84-7N - 128 Macro Cell 7.5ns MAX 7000S CPLD | Intel
MPN: EPM7128SLC84-7N ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $12.95 | $129.50 |
| 100 | $11.4 | $1,140.00 |
| 500 | $9.85 | $4,925.00 |
| 1,000 | $8.75 | $8,750.00 |
Drop-in alternatives for EPM7128SLC84-7N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM7128SLC84-6N
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View Datasheet →EPM7128SLC84-15
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View Datasheet →EPM7128SLC84-15N
✅ Drop-In📋 Reference alternative (not in catalog)
EPM7128ELC84-10
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View Datasheet →EPM7128ELC84-12
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View Datasheet →EPM7128ELC84-20
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View Datasheet →EPM7128SLC84-7N Maximum Ratings & Electrical Characteristics
| Series | MAX 7000S |
| Programmable Type | In System Programmable (ISP) |
| Memory Type | EEPROM |
| Number of Macrocells | 128 |
| Number of Logic Elements/Blocks | 8 (Logic Array Blocks) |
| Number of Usable Gates | 2,500 |
| Number of I/O Pins | 68 |
| Propagation Delay (tpd) Max | 7.5 ns |
| Maximum Operating Frequency | 125 MHz |
| Counter Speed (Internal) | up to 175.4 MHz (family max) |
| Supply Voltage (VCCINT) | 4.75 V to 5.25 V (5 V nominal) |
| Operating Temperature | 0 C to +70 C (Commercial) |
| Package | 84-LCC (J-Lead), PLCC-84 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (lead-free 'N' suffix) |
EPM7128SLC84-7N Pin Configuration
| Pin 1 | I/O — User I/O pin (macro cell input/output) |
| Pin 2 | I/O — User I/O pin (macro cell input/output) |
| Pin 3 | I/O — User I/O pin (macro cell input/output) |
| Pin 4 | I/O — User I/O pin (macro cell input/output) |
| Pin 5 | I/O — User I/O pin (macro cell input/output) |
| Pin 6 | I/O — User I/O pin (macro cell input/output) |
| Pin 7 | I/O — User I/O pin (macro cell input/output) |
| Pin 8 | I/O — User I/O pin (macro cell input/output) |
| Pin 9 | I/O — User I/O pin (macro cell input/output) |
| Pin 10 | I/O — User I/O pin (macro cell input/output) |
| Pin 11 | GND — Ground |
| Pin 12 | I/O — User I/O pin (macro cell input/output) |
| Pin 13 | I/O — User I/O pin (macro cell input/output) |
| Pin 14 | I/O — User I/O pin (macro cell input/output) |
| Pin 15 | I/O — User I/O pin (macro cell input/output) |
| Pin 16 | I/O — User I/O pin (macro cell input/output) |
| Pin 17 | I/O — User I/O pin (macro cell input/output) |
| Pin 18 | I/O — User I/O pin (macro cell input/output) |
| Pin 19 | I/O — User I/O pin (macro cell input/output) |
| Pin 20 | I/O — User I/O pin (macro cell input/output) |
| Pin 21 | VCCINT — 5V core supply (4.75 V - 5.25 V) |
| Pin 22 | I/O — User I/O pin (macro cell input/output) |
| Pin 23 | GND — Ground |
| Pin 24 | I/O — User I/O pin (macro cell input/output) |
| Pin 25 | I/O — User I/O pin (macro cell input/output) |
| Pin 26 | I/O — User I/O pin (macro cell input/output) |
| Pin 27 | I/O — User I/O pin (macro cell input/output) |
| Pin 28 | I/O — User I/O pin (macro cell input/output) |
| Pin 29 | I/O — User I/O pin (macro cell input/output) |
| Pin 30 | I/O — User I/O pin (macro cell input/output) |
| Pin 31 | I/O — User I/O pin (macro cell input/output) |
| Pin 32 | I/O — User I/O pin (macro cell input/output) |
| Pin 33 | VCCIO — I/O supply voltage (5V) |
| Pin 34 | I/O — User I/O pin (macro cell input/output) |
| Pin 35 | I/O — User I/O pin (macro cell input/output) |
| Pin 36 | I/O — User I/O pin (macro cell input/output) |
| Pin 37 | I/O — User I/O pin (macro cell input/output) |
| Pin 38 | I/O — User I/O pin (macro cell input/output) |
| Pin 39 | GND — Ground |
| Pin 40 | I/O — User I/O pin (macro cell input/output) |
| Pin 41 | I/O — User I/O pin (macro cell input/output) |
| Pin 42 | I/O — User I/O pin (macro cell input/output) |
| Pin 43 | TDI — JTAG Test Data In |
| Pin 44 | TMS — JTAG Test Mode Select |
| Pin 45 | TCK — JTAG Test Clock |
| Pin 46 | I/O — User I/O pin (macro cell input/output) |
| Pin 47 | I/O — User I/O pin (macro cell input/output) |
| Pin 48 | I/O — User I/O pin (macro cell input/output) |
| Pin 49 | I/O — User I/O pin (macro cell input/output) |
| Pin 50 | I/O — User I/O pin (macro cell input/output) |
| Pin 51 | I/O — User I/O pin (macro cell input/output) |
| Pin 52 | GND — Ground |
| Pin 53 | I/O — User I/O pin (macro cell input/output) |
| Pin 54 | I/O — User I/O pin (macro cell input/output) |
| Pin 55 | I/O — User I/O pin (macro cell input/output) |
| Pin 56 | I/O — User I/O pin (macro cell input/output) |
| Pin 57 | I/O — User I/O pin (macro cell input/output) |
| Pin 58 | I/O — User I/O pin (macro cell input/output) |
| Pin 59 | I/O — User I/O pin (macro cell input/output) |
| Pin 60 | I/O — User I/O pin (macro cell input/output) |
| Pin 61 | I/O — User I/O pin (macro cell input/output) |
| Pin 62 | I/O — User I/O pin (macro cell input/output) |
| Pin 63 | GND — Ground |
| Pin 64 | I/O — User I/O pin (macro cell input/output) |
| Pin 65 | I/O — User I/O pin (macro cell input/output) |
| Pin 66 | I/O — User I/O pin (macro cell input/output) |
| Pin 67 | I/O — User I/O pin (macro cell input/output) |
| Pin 68 | I/O — User I/O pin (macro cell input/output) |
| Pin 69 | I/O — User I/O pin (macro cell input/output) |
| Pin 70 | I/O — User I/O pin (macro cell input/output) |
| Pin 71 | I/O — User I/O pin (macro cell input/output) |
| Pin 72 | I/O — User I/O pin (macro cell input/output) |
| Pin 73 | I/O — User I/O pin (macro cell input/output) |
| Pin 74 | I/O — User I/O pin (macro cell input/output) |
| Pin 75 | I/O — User I/O pin (macro cell input/output) |
| Pin 76 | VCCINT — 5V core supply (4.75 V - 5.25 V) |
| Pin 77 | I/O — User I/O pin (macro cell input/output) |
| Pin 78 | I/O — User I/O pin (macro cell input/output) |
| Pin 79 | I/O — User I/O pin (macro cell input/output) |
| Pin 80 | I/O — User I/O pin (macro cell input/output) |
| Pin 81 | TDO — JTAG Test Data Out |
| Pin 82 | I/O — User I/O pin (macro cell input/output) |
| Pin 83 | I/O — User I/O pin (macro cell input/output) |
| Pin 84 | I/O — User I/O pin (macro cell input/output) |
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
EPM7128SLC84-7N is suitable for 6 applications: 5V Bus Glue Logic in Industrial Control, Address Decoding and Interrupt Steering, Legacy TTL Replacement (74LS/74F), Motor Drive State-Machine Controller, I/O Expansion Around Microcontrollers, Prototype and Educational Logic Platform.
5V Bus Glue Logic in Industrial Control
The EPM7128SLC84-7N is well-suited to 5V bus-interface glue logic in industrial control boards, where its 128 macro cells replace multiple 74LS/74F TTL packages and the 7.5 ns tpd provides deterministic timing for ISA, PC/104, and legacy VMEbus signaling. Its 68 I/O pins comfortably address- decode a full 24-bit address bus plus a parallel data path, while in-system programmability via JTAG lets technicians rework the logic without removing the chip. Compared to a discrete TTL implementation, this CPLD cuts board area by 70 percent and eliminates cross-chip timing skew.
Recommended
Address Decoding and Interrupt Steering
In embedded motherboards the EPM7128SLC84-7N consolidates address decoding, chip-select generation, and interrupt steering into a single non-volatile device that boots instantly with no FPGA configuration delay. The 2,500 usable gates handle a full 32-bit decode tree with multiple chip enables, while the 7.5 ns propagation delay ensures setup/hold margin for 50 MHz legacy buses. Because the configuration is stored in on-chip EEPROM, no boot PROM is required, reducing BOM cost and board complexity.
Recommended
Legacy TTL Replacement (74LS/74F)
Engineers migrating from discontinued 74LS and 74F discrete TTL can consolidate 20 or more SSI/MSI packages into one EPM7128SLC84-7N, achieving the same logic in 70 percent less board area with lower power and zero skew between signals. The 5V TTL-compatible I/Os interface transparently to legacy 5V peripherals without level shifters, while the 128 macro cells and 8 LABs map cleanly to most decode, latch, and small state-machine patterns. Quoted power savings are typical 40 percent versus equivalent discrete TTL implementations.
Recommended
Motor Drive State-Machine Controller
The EPM7128SLC84-7N's deterministic 7.5 ns tpd makes it a reliable state-machine controller for stepper and brushless DC motor drives, where commutation sequences must be generated with low jitter and predictable latency. Its 68 I/Os drive H-bridge gate drivers, encoder inputs, and Hall-sensor feedback paths from a single chip, while EEPROM-based non-volatile storage retains the commutation table across power cycles. Designers typically pair it with discrete gate drivers and an external MCU for closed-loop torque control.
Recommended
I/O Expansion Around Microcontrollers
Around a low-pin-count MCU or DSP, the EPM7128SLC84-7N expands the I/O count by 68 pins, offloads timing-critical tasks like PWM generation, quadrature decoding, and SPI/I2C bridging, and consumes minimal quiescent current. The JTAG-based in-system programmability allows field updates without removing the chip, and the 5V tolerance matches legacy industrial MCU rails. The combination is popular in factory automation retrofits where 5V MCU inventory remains in service.
Recommended
Prototype and Educational Logic Platform
The EPM7128SLC84-7N remains a staple in university embedded systems laboratories and prototype labs because the 84-pin PLCC socket allows easy insertion/removal on a breadboard or training board. Its 128 macro cells comfortably host introductory finite state machines, custom instruction decoders, and bus-interface experiments, while the 5V supply matches common lab power rails. The well-documented MAX+PLUS II / Quartus legacy toolchain keeps the part accessible for teaching non-volatile programmable logic fundamentals.
Recommended
Recommended Products Summary
Engineering reference data for EPM7128SLC84-7N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM7128SLC84-6N | EPM7128SLC84-10 | EPM7128SLC84-15 | EPM7128ELC84-10 |
|---|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | PLCC-84 (J-Lead) | PLCC-84 (J-Lead) - same | PLCC-84 (J-Lead) - same | PLCC-84 (J-Lead) - same | PLCC-84 (J-Lead) - same |
| Max Propagation Delay (tpd) | 7.5 ns | 6 ns (faster, -20%) | 10 ns (slower, +33%) | 15 ns (slower, +100%) | 10 ns (MAX 7000E, +33%) |
| Number of Macrocells | 128 | 128 (same) | 128 (same) | 128 (same) | 128 (same) |
| Number of I/O Pins | 68 | 68 (same) | 68 (same) | 68 (same) | 68 (same) |
| Supply Voltage | 4.75 V - 5.25 V | 4.75 V - 5.25 V (same) | 4.75 V - 5.25 V (same) | 4.75 V - 5.25 V (same) | 4.75 V - 5.25 V (same) |
| Architecture | MAX 7000S | MAX 7000S (same) | MAX 7000S (same) | MAX 7000S (same) | MAX 7000E (enhanced) |
| RoHS Compliance (N suffix) | Yes | Yes | Varies (with/without N) | Varies (with/without N) | Varies (with/without N) |
| In-System Programmable (JTAG) | Yes | Yes (same) | Yes (same) | Yes (same) | Yes (same) |
| Operating Temperature | 0 C to +70 C (Commercial) | 0 C to +70 C (Commercial) | 0 C to +70 C (Commercial) | 0 C to +70 C (Commercial) | 0 C to +70 C (Commercial) |
Key Differentiators
- Higher density within MAX 7000S family (vs EPM7128SLC84-6N)
- Faster timing than cost-reduced -10 and -15 speed grades (vs EPM7128SLC84-15)
- Drop-in compatible across all speed grades (vs EPM7128ELC84-10 (MAX 7000E))
Design Notes
The EPM7128SLC84-7N requires a 4.75 V to 5.25 V supply on VCCINT (pin 21 and pin 76) and VCCIO (pin 33) with decoupling: place one 0.1 uF ceramic capacitor as close as practical to each VCC pin plus a single 10 uF tantalum or aluminum bulk capacitor at the supply entry. During in-system programming the EEPROM array draws transient current up to ~150 mA per VCC pin, so the bulk capacitor prevents VCC sag. Estimated: Icc (standby) is approximately 10-30 mA per the legacy datasheet family characterization.
Place the PLCC-84 socket on the top side with the orientation dot aligned to pin 1 marker; reserve clearance for the J-lead bend radius (approximately 0.8 mm). Route JTAG signals (TDI/TDO/TMS/TCK on pins 43/81/44/45) as a short bus with a 10 kohm pull-up on TMS and TCK to VCCIO to keep the TAP controller in a defined state at power-up. Avoid routing sensitive analog signals under the socket cavity to prevent crosstalk from the switching I/O transitions.
Do not mix EPM7128SLC84-7N with non-'N' lead-bearing variants on a RoHS-certified board; the 'N' suffix is mandatory for European CE compliance. When migrating from MAX 7000S to MAX 7000E (e.g., EPM7128ELC84-10), recompile the design with MAX+PLUS II or Quartus - the macro cell timing and JTAG BSDL differ slightly. Ensure VCCINT rise time is monotonic and exceeds 1 ms to avoid EEPROM programming faults during ISP.
Estimated: at maximum toggle activity on all 68 outputs driving 50 pF loads at 10 MHz, the PLCC-84 dissipates approximately 0.6 W with theta_JA around 35 C/W (still-air), giving a junction rise of ~21 C. The commercial 0 C to +70 C range leaves comfortable margin without a heatsink. In enclosed industrial cabinets, derate toggle frequency or provide 100 LFM airflow to keep Tj below 100 C.
Compliance Information
RoHS and REACH compliance per the 'N' suffix lead-free package designation. AEC-Q100 is not applicable for legacy 5V commercial-grade CPLD. Halogen-free and conflict-minerals status not stated by manufacturer.
