AM70PDL129CDH85IS datasheet(4/127 Pages) AMD

4 / 127 page

Am70PDL127CDH/Am70PDL129CDH

November 24, 2003

ADV ANCE

I N FO RMAT I O N

■ WP#/ACC (Write Protect/Acceleration) input

—At V

IL, hardware level protection for the first and last two 4K

word sectors.

—At V

IH, allows removal of sector protection

—At V

HH, provides accelerated programming in a factory

setting

FLASH MEMORY FEATURES (DATA STORAGE)

AM29LV640M ARCHITECTURAL ADVANTAGES

■ Single power supply operation

— 3 V for read, erase, and program operations

■ Manufactured on 0.23 µm MirrorBit process

technology

■ SecSi

™ (Secured Silicon) Sector region

— 128-word/256-byte sector for permanent, secure

identification through an 8-word/16-byte random

Electronic Serial Number, accessible through a

command sequence

— May be programmed and locked at the factory or by

the customer

■ Flexible sector architecture

— One hundred twenty-eight 32 Kword sectors

■ Compatibility with JEDEC standards

— Provides pinout and software compatibility for

single-power supply flash, and superior inadvertent

write protection

■ Minimum 100,000 erase cycle guarantee per sector

■ 20-year data retention at 125

°C

PERFORMANCE CHARACTERISTICS

■ High performance

— 110 ns access time

— 30 ns page read times

— 0.5 s typical sector erase time

— 22 µs typical effective write buffer word programming

time: 16-word write buffer reduces overall

programming time for multiple-word updates

— 4-word page read buffer

— 16-word write buffer

■ Low power consumption (typical values at 3.0 V, 5

MHz)

— 30 mA typical active read current

— 50 mA typical erase/program current

— 1 µA typical standby mode current

SOFTWARE & HARDWARE FEATURES

■ Software features

— Program Suspend & Resume: read other sectors

before programming operation is completed

— Erase Suspend & Resume: read/program other

sectors before an erase operation is completed

— Data# polling & toggle bits provide status

— Unlock Bypass Program command reduces overall

multiple-word programming time

— CFI (Common Flash Interface) compliant: allows host

system to identify and accommodate multiple flash

devices

■ Hardware features

— Sector Group Protection: hardware-level method of

preventing write operations within a sector group

— Temporary Sector Unprotect: V

ID-level method of

changing code in locked sectors

— WP#/ACC input:

Write Protect input (WP#) protects first or last sector

regardless of sector protection settings

ACC (high voltage) accelerates programming time for

higher throughput during system production

— Hardware reset input (RESET#) resets device

—

Ready/Busy# output (RY/BY#) indicates program or

erase cycle completion

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