EPM7128EQI100-15 - MAX 7000 CPLD, 128 Macrocells, 15ns | Altera/Intel
MPN: EPM7128EQI100-15 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $50.88 | $50.88 |
| 10 | $48.2 | $482.00 |
| 100 | $43.5 | $4,350.00 |
| 500 | $38.1 | $19,050.00 |
| 1,000 | $32.75 | $32,750.00 |
Drop-in alternatives for EPM7128EQI100-15 — 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:
EPM7128EQC100-20
✅ Drop-In✓ In Stock
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View Datasheet →EPM7128EQC100-10
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View Datasheet →EPM7128SQI100-10N
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View Datasheet →EPM7128SQI100-15
✅ Drop-In📋 Reference alternative (not in catalog)
EPM7096QI100-15
✅ Drop-In ⚠️ 参数待验证✓ In Stock
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View Datasheet →EPM7128EQI100-15 Maximum Ratings & Electrical Characteristics
| Family | MAX 7000 |
| Device Type | CPLD - Complex Programmable Logic Device |
| Macrocells | 128 |
| Usable Gates | 2.5K |
| Logic Array Blocks (LABs) | 8 (16 macrocells each) |
| User I/O Pins | 84 |
| Pin-to-Pin Propagation Delay (tPD) | 15 ns |
| Maximum Operating Frequency | 76.9 MHz |
| Supply Voltage (VCCINT/VCCIO) | 4.75 V to 5.25 V (5 V nominal) |
| Operating Temperature | -40 °C to +85 °C (industrial grade, "I" suffix) |
| Package | 100-pin PQFP (BQFP, 14x20 mm) |
| Mounting Type | Surface Mount |
| Programming Technology | EEPROM (non-volatile, in-system programmable) |
| Boundary Scan | IEEE 1149.1 (JTAG) compliant |
| RoHS Status | Compliant (lead-free; verify per lot) |
| Manufacturer | Altera (now Intel FPGA) |
EPM7128EQI100-15 100-pin pqfp (bqfp, 14x20 mm) Pin Configuration Guide
Complete pinout information for EPM7128EQI100-15 (100-pin pqfp (bqfp, 14x20 mm) package) with 84 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 EPM7128EQI100-15.
Refer to the datasheet for full pin configuration.
Estimated pin count: 84 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
EPM7128EQI100-15 is suitable for 6 applications: Microprocessor Address Decoding and Glue Logic, PCI Bus Interface and Add-In Card Logic, Board-Level Power Sequencing and Reset Control, Legacy Industrial Control State Machines, Custom Peripheral Replacement for Obsolete 74-Series Logic, Telecom Backplane Bus Arbitration.
Microprocessor Address Decoding and Glue Logic
The EPM7128EQI100-15's 128 macrocells and 15 ns propagation delay make it ideal for decoding multiplexed address buses in 8-bit and 16-bit microprocessor systems. With 84 available I/O pins, the device can decode chip-select signals for up to 16 peripheral devices across 24-bit address spaces, replacing multiple 74LS138/139 decoder ICs with a single CPLD. The EEPROM-based programming retains the decoded logic across power cycles, which is essential for embedded controllers where the host CPU cannot boot a configuration PROM. The industrial -40 to +85 °C temperature range also supports factory automation and outdoor telecom equipment that must operate reliably across harsh thermal cycles.
Recommended
PCI Bus Interface and Add-In Card Logic
The 15 ns propagation delay of the EPM7128EQI100-15 supports 33 MHz PCI bus cycles with comfortable timing margin for address/data steering and command decoding in legacy add-in cards. The device's 84 user I/Os accept the 32-bit multiplexed PCI address/data bus plus control signals, while four global clock inputs can be assigned to PCI CLK for synchronous state-machine implementations. Although newer designs use PCIe or larger FPGAs, the EPM7128EQI100-15 remains a cost-effective solution for maintaining legacy PCI-based industrial cards, medical instrumentation, and test equipment. Designers should add a series resistor on outputs to meet PCI signal integrity requirements.
Recommended
Board-Level Power Sequencing and Reset Control
Power sequencing logic in multi-rail systems is implemented efficiently using the EPM7128EQI100-15 because each macrocell provides configurable clear, preset, clock, and output enable signals. A typical design uses one LAB to monitor four power-good inputs and produce staggered reset/Enable outputs for downstream regulators and ASICs. The 15 ns propagation delay ensures deterministic sequencing within 50 ns of the slowest rail, well inside typical 100 ms power-on ramp budgets. Industrial temperature operation (-40 to +85 °C) and 5 V I/O tolerance allow the device to interface directly with legacy supervisor ICs without level shifters.
Recommended
Legacy Industrial Control State Machines
Deterministic, fast state machines are a core use case for the EPM7128EQI100-15 in PLC-style industrial controllers, motor drives, and process control hardware. The device supports 16-state Mealy or Moore machines per LAB, with registered macrocell outputs providing glitch-free transitions that are essential for safety-related logic. The non-volatile EEPROM architecture means the controller boots into the correct state immediately on power-up, eliminating the FPGA configuration delay that complicates safety logic. Industrial -40 to +85 °C operation also matches factory-floor environmental specifications without additional thermal management.
Recommended
Custom Peripheral Replacement for Obsolete 74-Series Logic
Engineers use the EPM7128EQI100-15 to consolidate multiple discrete 74LS/74HC glue-logic ICs onto a single programmable device, simplifying PCB layout and reducing component count. A typical consolidation replaces 5-10 standard-logic packages (latches, muxes, decoders, flip-flops) with one CPLD, freeing board space and improving reliability through fewer solder joints. The 84 user I/Os accommodate 10-15 equivalent 16-pin logic functions per device, and the 5 V VCCIO matches the legacy TTL/CMOS signaling directly without translators. Design teams use MAX+PLUS II schematics or VHDL/Verilog entry to capture the original logic exactly.
Recommended
Telecom Backplane Bus Arbitration
Backplane bus arbiters in legacy telecom shelves leverage the EPM7128EQI100-15 for fast, deterministic arbitration across 8-16 line card slots. The 15 ns propagation delay supports 33 MHz backplane operation, and the 84 I/Os accommodate parallel request/grant buses plus interrupt and status signals. EEPROM programming ensures that arbitration logic survives card hot-swap events and shelf power cycles without manual reconfiguration. Industrial temperature operation is required for outside-plant equipment and central-office environments with elevated ambient temperatures near heat-generating line cards.
Recommended
Recommended Products Summary
Engineering reference data for EPM7128EQI100-15 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM7128EQC100-20 | EPM7128EQC100-10 | EPM7128SQI100-10N | EPM7128SQI100-15 | EPM7096QI100-15 |
|---|---|---|---|---|---|---|
| Package | PQFP-100 (BQFP, 14x20 mm) | PQFP-100 - same | PQFP-100 - same | PQFP-100 - same | PQFP-100 - same | PQFP-100 - same |
| Brand | Altera / Intel FPGA | Altera / Intel FPGA - same | Altera / Intel FPGA - same | Altera / Intel FPGA - same | Altera / Intel FPGA - same | Altera / Intel FPGA - same |
| Macrocells | 128 | 128 | 128 | 128 | 128 | 96 (-25%) |
| Family / Sub-series | MAX 7000E | MAX 7000E | MAX 7000E | MAX 7000S (adds JTAG BST) | MAX 7000S (adds JTAG BST) | MAX 7000E |
| Pin-to-Pin Delay (tPD) | 15 ns | 20 ns (+33%) | 10 ns (-33%) | 10 ns (-33%) | 15 ns (identical) | 15 ns (identical) |
| Temperature Grade | Industrial -40 to +85 °C | Commercial 0 to +70 °C | Commercial 0 to +70 °C | Industrial -40 to +85 °C | Industrial -40 to +85 °C | Industrial -40 to +85 °C |
| Supply Voltage | 4.75 V to 5.25 V (5 V) | 4.75 V to 5.25 V - same | 4.75 V to 5.25 V - same | 4.75 V to 5.25 V - same | 4.75 V to 5.25 V - same | 4.75 V to 5.25 V - same |
| User I/O | 84 | 84 - same | 84 - same | 84 - same | 84 - same | [DATA_NEEDED: verify 84 vs 68 I/O count] |
| Lifecycle Status | Obsolete (last-time-buy) | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Industrial temperature grade in MAX 7000E series with 15 ns delay (vs EPM7128EQC100-20)
- MAX 7000E base architecture with 128 macrocells (vs EPM7096QI100-15)
- EEPROM non-volatile configuration (vs MAX II EPM240 CPLD)
Design Notes
The EPM7128EQI100-15 requires a tightly regulated 5 V supply between 4.75 V and 5.25 V for both core and I/O. Place a 100 uF bulk capacitor near the PQFP VCC pins and add 0.1 uF ceramic decoupling on every VCC/GND pair within 5 mm of the package. Voltage dips below 4.75 V during EEPROM programming can corrupt the bitstream and cause in-field failures. Power-rail sequencing is generally not required, but the JTAG controller and core logic share VCC, so a clean supply is essential for reliable boundary-scan testing.
The 100-pin PQFP package has 0.65 mm pitch leads that require careful PCB footprint design per IPC-7351. Use a copper pad length of 1.9 mm with 0.4 mm solder mask expansion to ensure reliable solder fillets, and avoid via-in-pad unless the via is tented and plated shut. Route high-speed output signals on inner layers with continuous ground reference to control impedance around 50 ohms, and place a ground pour directly under the PQFP body to reduce lead inductance. Thermal performance is adequate at industrial temperatures without a heatsink because the typical ICC is under 200 mA at 5 V.
Do not assume all EPM7128 EQ variants are pin-compatible across temperature grades: the "I" suffix (industrial -40 to +85 °C) and "C" suffix (commercial 0 to +70 °C) share the same die and pinout but are graded differently at test. Mixing grades in a production lot can cause field failures when commercial-grade parts are inadvertently soldered into industrial-spec assemblies. Always verify the date code and suffix on the reel label, and require distributors to provide a Certificate of Compliance stating the exact temperature grade. Also note that the MAX 7000E EEPROM is rated for only 100 program/erase cycles - design for one-time factory programming plus occasional in-system updates, not frequent reconfigurations.
When using the EPM7128EQI100-15 as a bus driver in 33 MHz PCI or backplane applications, add 22-33 ohm series resistors on each high-fanout output to dampen ringing caused by the CPLD's 5 ns rise time into capacitive loads. The 84 user I/Os are arranged in banks; assign high-speed synchronous signals to I/O pins that share a common VCCIO to avoid skew across banks. The global clear and four global clock pins should be reserved for signals that genuinely need low skew, because they bypass the LAB interconnect fabric. Always simulate worst-case timing in MAX+PLUS II or Quartus II before committing to layout.
Compliance Information
RoHS and lead-free per Altera/Intel product declaration for industrial-grade lot. Halogen-free status not explicitly published in available distributor data. AEC-Q100 not applicable because the MAX 7000E family is not automotive-qualified.
