EPM7128SQI100-10 - MAX 7000S CPLD 128-Macrocell 84-IO 10ns | Altera
MPN: EPM7128SQI100-10 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $9.75 | $9,750.00 |
EPM7128SQI100-10 Overview
What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic device that combines the architectural simplicity of a PAL with the density and flexibility of an FPGA. CPLDs sit in the programmable logic hierarchy between simple SPLDs (single PAL/GAL arrays) and FPGAs (gate-array style SRAM-based devices). They use EEPROM or flash configuration cells, retain their configuration without external memory, and are typically used for glue logic, bus bridging, state-machine control, and address decoding in cost-sensitive industrial designs. The MAX 7000S family targets 5V tolerant interfaces and provides in-system programmability (ISP) via IEEE 1149.1 JTAG.
Key features of the EPM7128SQI100-10 include pin-to-pin delays of 10 ns, counter speeds up to 175.4 MHz, 100% TTL-compatible I/O, JTAG-compliant ISP, and an extended industrial temperature range. The device supports 5V core operation with multi-voltage I/O support, making it suitable as a bridge between legacy 5V logic and modern 3.3V peripherals. Built-in JTAG (IEEE 1149.1) boundary-scan support simplifies board-level test.
Architecturally, the MAX 7000S device uses Logic Array Blocks (LABs) of 16 macrocells each, interconnected via a programmable interconnect array (PIA). Each macrocell contains a programmable AND/OR/registered logic block with configurable flip-flop polarity, clock, clear, and preset controls, and an I/O control block with tri-state, open-drain, or registered output options. The EEPROM cell technology guarantees 100 reprogram/erase cycles minimum.
Typical applications include industrial control glue logic, bus interface bridging (e.g., PCI to local bus), address decoding and chip-select generation, state-machine controllers in motor drives, and 5V-to-3.3V level translation in legacy system upgrades. The 84 user I/Os make it well-suited for medium-density interface aggregation.
When designing with the EPM7128SQI100-10, ensure the 5V VCC supply is well-decoupled with 0.1uF and 10uF capacitors placed close to the device. Unused I/O pins should be configured as outputs and left unconnected, or tied to a defined logic level through the Quartus design software. Industrial-grade parts require proper thermal management at high toggle rates.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes drawn from the MAX 7000S datasheet family, providing information not consolidated on any single distributor or manufacturer page.
Drop-in alternatives for EPM7128SQI100-10 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with EPM7128SQI100-10 (same form factor and footprint) — differing in Logic Array Blocks (LABs), Operating Temperature, Package, Pin-to-Pin Delay (tPD), Programming Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM7128SQC100-10
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$9.85 / Unit
View Datasheet →EPM7128SQC100-10N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$14.95 / Unit
View Datasheet →EPM7128SQI100-10N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$15.9 / Unit
View Datasheet →EPM7128SQC100-15
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$8.2 / Unit
View Datasheet →EPM7128SQC100-15N
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
EPM7128SQC100-7
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$10.85 / Unit
View Datasheet →EPM7128SQC100-7N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$7.1 / Unit
View Datasheet →EPM7128SQI100-10 Maximum Ratings & Electrical Characteristics
| Family | MAX 7000S |
| Device Type | CPLD - Complex Programmable Logic Device |
| Macro Cells | 128 |
| User I/Os | 84 |
| Usable Gates | 2,500 |
| Logic Blocks (LABs) | 8 (16 macrocells each) |
| Package Type | PQFP-100 |
| Pin-to-Pin Delay (tPD) | 10 ns |
| Maximum Internal Frequency | 125 MHz to 250 MHz |
| Counter Speed | Up to 175.4 MHz |
| Operating Voltage (VCC) | 5 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Configuration Memory | EEPROM (non-volatile) |
| Program/Erase Cycles | 100 minimum |
| In-System Programming | Yes (JTAG IEEE 1149.1) |
| Logic Family | CMOS |
| I/O Compatibility | TTL-compatible, 5V/3.3V multi-voltage |
EPM7128SQI100-10 Pin Configuration
| Pin 1 | I/O — User I/O pin (function defined by Quartus design) |
| Pin 10 | I/O — User I/O pin |
| Pin 20 | I/O — User I/O pin |
| Pin 30 | I/O — User I/O pin |
| Pin 40 | GND — Ground |
| Pin 50 | I/O — User I/O pin |
| Pin 60 | I/O — User I/O pin |
| Pin 70 | I/O — User I/O pin |
| Pin 80 | VCC — 5V supply |
| Pin 85 | TDI — JTAG Test Data In |
| Pin 86 | TMS — JTAG Test Mode Select |
| Pin 87 | TCK — JTAG Test Clock |
| Pin 88 | TDO — JTAG Test Data Out |
| Pin 90 | I/O — User I/O pin |
| Pin 100 | I/O — User I/O pin |
Typical Applications
EPM7128SQI100-10 is suitable for 6 applications: Industrial Control Glue Logic, 5V to 3.3V Level Translation Bridge, Address Decoding and Chip-Select Generation, State-Machine Controller in Motor Drives, PCI / Local Bus Interface Bridge, Legacy System Refresh and Form-Fit-Function Replacement.
Industrial Control Glue Logic
The EPM7128SQI100-10 fits industrial control glue logic because of its 128 macrocells of EEPROM-based non-volatile logic with 10 ns deterministic pin-to-pin delay and industrial -40C to +85C operating range. In a typical PLC backplane, it aggregates discrete sensor inputs, generates chip-select signals, and provides timing/sequencing between the CPU and peripheral ASICs. Unlike microcontrollers, its deterministic 10 ns delay makes it ideal for real-time response without firmware overhead.
Recommended
5V to 3.3V Level Translation Bridge
The EPM7128SQI100-10 is well-suited for 5V-to-3.3V level translation bridges in legacy system upgrades because of its multi-voltage I/O feature. Each I/O bank can be independently powered at 5V or 3.3V, allowing the CPLD to act as a bidirectional voltage-level buffer between legacy 5V peripherals and modern 3.3V processors. With 84 user I/Os and 10 ns propagation delay, it can bridge wide parallel buses without introducing meaningful latency.
Recommended
Address Decoding and Chip-Select Generation
The EPM7128SQI100-10 is ideal for address decoding and chip-select generation in memory-mapped systems because of its combinational logic speed and JTAG-driven in-system reprogrammability. With 10 ns pin-to-pin delay, it generates fast chip-select signals for SRAM, DRAM, Flash, and peripheral ASICs in 68k, x86, or PowerPC-based embedded systems. Its EEPROM-based configuration allows late-stage board-revision updates without replacing the device.
Recommended
State-Machine Controller in Motor Drives
The EPM7128SQI100-10 is well-matched to motor-drive state-machine controllers because its 128 macrocells and 84 I/Os can implement multi-state commutation, fault handling, and PWM enable sequencing for three-phase inverter stages. The 10 ns pin-to-pin delay provides deterministic response to overcurrent and position-sensor inputs faster than microcontroller interrupt latency. Industrial -40C to +85C operation handles under-hood thermal stress in traction and industrial drive applications.
Recommended
PCI / Local Bus Interface Bridge
The EPM7128SQI100-10 functions as a PCI-to-local-bus bridge in embedded computing because of its 5V PCI signaling compatibility, 84 I/Os, and 10 ns timing margin for 33 MHz PCI bus operation. It implements the address/data multiplexing, command decoding, and target/master state machines required to attach legacy peripherals to a PCI host. Its non-volatile EEPROM configuration means no boot PROM is required.
Recommended
Legacy System Refresh and Form-Fit-Function Replacement
The EPM7128SQI100-10 is the natural choice for legacy system refresh designs that must preserve PCB layout and firmware interfaces because it remains pin-compatible with the original MAX 7000S PQFP-100 footprint and JTAG programming flow. With 100 reprogram/erase cycles and industrial temperature range, it supports long-life field-deployed systems in medical, transportation, and aerospace where re-spinning the PCB is impractical. Designers can extend product life cycles without requiring firmware changes.
Recommended
Recommended Products Summary
Engineering reference data for EPM7128SQI100-10 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM7128SQC100-10 | EPM7128SQC100-10N | EPM7128SQI100-10N | EPM7128SQC100-15 | EPM7128SQC100-7 |
|---|---|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | PQFP-100 | PQFP-100 - same | PQFP-100 - same | PQFP-100 - same | PQFP-100 - same | PQFP-100 - same |
| Pin-to-Pin Delay (tPD) | 10 ns | 10 ns - same | 10 ns - same | 10 ns - same | 15 ns - slower | 7 ns - faster |
| Operating Temperature | -40C to +85C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) |
| Macro Cells | 128 | 128 - same | 128 - same | 128 - same | 128 - same | 128 - same |
| User I/Os | 84 | 84 - same | 84 - same | 84 - same | 84 - same | 84 - same |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Industrial -40C to +85C operating range in PQFP-100 (vs EPM7128SQC100-10)
- Same 10 ns timing as commercial drop-in alternatives (vs EPM7128SQC100-15)
- EEPROM-based non-volatile configuration - no boot PROM required (vs SRAM-based FPGAs)
Design Notes
The EPM7128SQI100-10 requires a monotonic 5V VCC ramp during power-up per the MAX 7000S datasheet; VCC must rise without dips that could trigger spurious JTAG state transitions. Place a 0.1uF ceramic decoupling capacitor close to each VCC pin and a single 10uF bulk capacitor near the package. For multi-bank designs, ensure each I/O bank supply is powered up simultaneously with the core supply to avoid latch-up.
The PQFP-100 package has 0.65 mm pitch leads that require careful PCB layout to avoid solder bridging during reflow. Use a solder paste stencil of 0.15 mm thickness and follow IPC-7351 land pattern guidelines for PQFP packages. Route high-speed outputs (clocks, PCI bus signals) on the top layer with a continuous ground reference plane beneath to control impedance and minimize crosstalk into adjacent I/O pins.
Inputs may undershoot to -2.0V for periods shorter than 20 ns during high-speed transitions - this is permitted by the datasheet but requires series-damping or clamping if driving from long PCB traces. Outputs should be configured with appropriate slew-rate control (slow slew rate option) for bus signals above 33 MHz to limit EMI and ground bounce on the PQFP-100 lead frame.
Do not assume modern Quartus software supports the MAX 7000S family - the legacy MAX+PLUS II toolchain (or Quartus versions prior to 13.0) is required for design compilation. Programming files (.pof) generated for newer Altera/Intel CPLDs are NOT compatible with the EPM7128SQI100-10. Also, verify the JTAG chain order matches the BSDL file when the device shares a JTAG bus with other components.
Compliance Information
RoHS/REACH compliance status not specified in the provided Verified Web Data. RoHS-compliant variants are typically designated with an "N" suffix (e.g., EPM7128SQI100-10N) per Altera part numbering convention. AEC-Q100 not applicable - this is a general-purpose industrial CPLD, not an automotive-qualified part.
