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EPM240T100I5N

MAX II CPLD, 240 LE, 8Kbit UFM, 80 I/O, TQFP-100

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Manufacturer Part：

EPM240T100I5N

Package：

100-Pin TQFP (14.0 x 14.0 x 1.0 mm)

Description

Product Overview

The EPM240T100I5N is an Intel (Altera) MAX II CPLD with 240 logic elements, 8192 flash bits, and 80 user I/O pins. It features instant-on capability, low standby power, and multi-voltage I/O support. Packaged in 100-pin TQFP, -40C to +85C (I-grade).

Key Specifications

Logic Elements	240
Flash Storage	8,192 bits (User Flash)
I/O Pins	80
Performance	Up to 201.1 MHz
Standby Power	As low as 25 uA
Package	TQFP-100

Features

240 logic elements (macrocells)
8Kbit user flash memory
80 user I/O pins
Instant-on (no configuration load)
Multi-voltage I/O (1.5V, 1.8V, 2.5V, 3.3V)
Low standby power: 25uA typical
Internal oscillator and JTAG

Applications

Address decoding and bus interfacing
Power-on reset and glue logic
I/O expansion and protocol bridging
Configuration control for FPGAs

Product Introduction:EPM240T100I5N Product Introduction

The EPM240T100I5N is an Intel (Altera) MAX II CPLD with 240 logic elements and 8192 bits of user flash memory. MAX II devices use a flash-based architecture that provides instant-on capability with no external configuration device required, unlike SRAM-based FPGAs. The 80 user I/O pins support multi-voltage operation at 1.5V, 1.8V, 2.5V, and 3.3V I/O standards. The ultra-low 25uA standby current makes MAX II ideal for power-sensitive applications. The built-in user flash memory can store non-volatile data such as configuration constants or calibration data without an external EEPROM. An internal oscillator provides a free-running clock for standalone operation. The 100-pin TQFP package offers the I-grade (-40C to +85C) temperature range.

Working Principle:EPM240T100I5N Working Principle

The EPM240 uses Alteras MAX II architecture based on a 2D array of logic array blocks (LABs), each containing 10 logic elements (LEs). Each LE contains a 4-input look-up table (LUT), a programmable register, and carry/chain logic. The flash-based configuration storage is embedded in the device, eliminating the need for external configuration ROM and providing instant-on power-up. The MultiTrack interconnect provides routing between LABs with deterministic timing. The user flash memory (UFM) block is a separate 8192-bit flash sector accessible via the JTAG interface or through user logic, enabling on-chip non-volatile data storage. The internal oscillator runs at approximately 5.5MHz and can be divided down for low-frequency clocking.

Pin Description:EPM240T100I5N Pin Definition and Functions

100-pin TQFP with 80 user I/O (multi-voltage), VCCINT (1.8V or 2.5V core), VCCIO (1.5-3.3V per bank, 4 I/O banks), GND, TDI/TDO/TCK/TMS (JTAG), and dedicated clock inputs. Refer to datasheet pin map for complete 100-pin TQFP assignment.

Application Scenarios:In which products and applications isEPM240T100I5N used

Address decoding and memory-mapped I/O control in processor-based systems
Power-on reset sequencing and board management with instant-on flash
I/O expansion and protocol bridging (SPI-to-parallel, etc.)
FPGA configuration controller with 8Kbit UFM for storing bitstream parameters

Alternative Models:What chips are recommended as replacements for EPM240T100I5N

Model	Manufacturer	Key Difference
EPM240T100C5N	Intel	Commercial temp (0-70C)
EPM570T100I5N	Intel	570 LE, more logic
XC9572XL	Xilinx	72 macrocells, CoolRunner
LCMXO2-1200HC	Lattice	MachXO2, 1280 LUTs