FTS64K datasheet(9/44 Pages) FREESCALE

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FTS64K Block User Guide — Version V01.00

Section 1 Introduction

1.1 Overview

This document describes the FTS64K module which is a 64k byte Flash (Non-Volatile) Memory. The

Flash array is organized as 1 block of 64k bytes organized as 1024 rows of 64 bytes. The Flash block’s

erase sector size is 8 rows (512 bytes).

The Flash memory may be read as either bytes, aligned words or misaligned words. Read access time is

one bus cycle for byte and aligned word, and two bus cycles for misaligned words.

Program and erase functions are controlled by a command driven interface. Both sector erase and mass

erase of the entire 64k byte Flash block are supported. An erased bit reads ’1’ and a programmed bit reads

’0’. The high voltage required to program and erase is generated internally by on-chip charge pumps.

It is not possible to read from the Flash block while it is being erased or programmed.

The Flash is ideal for program and data storage for single-supply applications allowing for field

reprogramming without requiring external programming voltage sources.

WARNING

A word must be erased before being programmed. Cumulative programming of bits within a word

is not allowed.

1.1.1 Glossary

Command Sequence

A three-step MCU instruction sequence to program, erase or erase-verify a Flash block.

1.2 Features

•

64k bytes of Flash memory.

•

Automated program and erase algorithm.

•

Interrupts on Flash command completion and command buffer empty.

•

Fast sector erase and word program operation.

•

2-stage command pipeline

•

Flexible protection scheme for protection against accidental program or erase.

•

Single power supply program and erase.

•

Security feature.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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