EP910ILI-12

## Device Overview

The Altera EP910ILI-12 is a member of the MAX 9000 series Complex Programmable Logic Devices (CPLDs), designed for moderate-to-high density logic applications requiring fast, deterministic timing and non-volatile configuration. Fabricated using CMOS technology, this device combines low-power operation, high pin-to-pin speed, and flexible I/O capabilities. It targets industrial, embedded, and communication systems where reliable signal routing, glue logic, and small-scale arithmetic are required.

## Logic Architecture

The EP910ILI-12 contains 910 macrocells organized into logic array blocks (LABs). Each LAB comprises 60 macrocells, with each macrocell integrating a 16-input combinational logic array, a flip-flop for sequential logic, and dedicated carry logic. This architecture allows implementation of complex arithmetic functions, counters, state machines, and combinational logic with minimal propagation delay. The deterministic timing of the CPLD makes it suitable for synchronous designs and high-speed control logic.

## Timing and Performance

With a speed grade of -12, the EP910ILI-12 is optimized for fast signal propagation and low-latency operation. Typical pin-to-pin propagation delays are in the range of a few nanoseconds. Fast dedicated carry chains enable efficient implementation of adders, counters, and arithmetic logic. This timing performance ensures predictable behavior in bus interfacing, address decoding, and control signal distribution applications.

## I/O and Package

The device is available in a 100-pin Thin Quad Flat Package (TQFP), providing flexible access to user I/Os. It supports multiple voltage standards, including TTL and LVCMOS, allowing compatibility with various logic families. Input pins feature hysteresis for noise immunity, while output pins provide programmable drive strength and slew-rate control. The independent I/O configuration enables mixed-voltage interfacing and low-power operation, suitable for embedded systems and industrial applications.

## Power Consumption

The EP910ILI-12 exhibits low static and dynamic power consumption due to its CMOS architecture. Typical operating voltage is 3.3 V, with support for lower voltage ranges depending on system requirements. Efficient macrocell utilization and fan-out design minimize dynamic power, while unused LABs can remain powered down to further reduce consumption. This makes the device suitable for battery-powered systems or applications with tight thermal budgets.

## Configuration and Programming

This device is a non-volatile, one-time programmable (OTP) CPLD, ensuring logic configuration is retained across power cycles. Programming is performed using Altera MAX+PLUS II or Quartus II software, generating a fuse map to define logic functions and I/O behavior. The OTP architecture eliminates the need for external configuration memory while providing immediate availability of logic at power-up. JTAG programming support allows in-system verification and testing.

## Reliability and Operating Conditions

The EP910ILI-12 is rated for commercial and industrial temperature ranges, with the industrial grade supporting operation from -40°C to 85°C. The device includes ESD protection, latch-up immunity, and robust configuration memory stability. Its deterministic timing ensures reliable operation for control signals, counters, and state machines. The non-volatile configuration guarantees consistent startup behavior in industrial, embedded, and communication applications.

## Applications

Typical applications for EP910ILI-12 include address decoding, bus interfacing, signal multiplexing and demultiplexing, control and timing logic, counters, comparators, and small-scale arithmetic functions. Its combination of fast pin-to-pin timing, flexible I/O, non-volatile configuration, and low power consumption makes it suitable for embedded control systems, industrial automation, instrumentation, telecommunications, and other applications requiring reliable and deterministic programmable logic.