4 Megabit (524,288 x 8-Bit) CMOS 5.0 Volt-only Sector Erase Flash Memory AM29F040-120EC

DISTINCTIVE CHARACTERISTICS

■ 5.0 V ± 10% for read and write operations

— Minimizes system level power requirements

■ Compatible with JEDEC-standards

— Pinout and software compatible with single-

power-supply Flash

— Superior inadvertent write protection

■ Package options

— 32-pin PLCC

— 32-pin TSOP

— 32-pin PDIP

■ Minimum 100,000 write/erase cycles guaranteed

■ High performance

— 55 ns maximum access time

■ Sector erase architecture

— Uniform sectors of 64 Kbytes each

— Any combination of sectors can be erased.

Also supports full chip erase.

■ Sector protection

— Hardware method that disables any combination

of sectors from write or erase operations

■ Embedded Erase Algorithms

— Automatically preprograms and erases the chip

or any combination of sectors

■ Embedded Program Algorithms

— Automatically programs and verifies data at

specified address

■ Data Polling and Toggle Bit feature for detection

of program or erase cycle completion

■ Erase suspend/resume

— Supports reading data from a sector not being

erased

■ Low power consumption

— 20 mA typical active read current

— 30 mA typical program/erase current

■ Enhanced power management for standby

mode

— <1 µA typical standby current

— Standard access time from standby mode

Flexible Sector-Erase Architecture

■ Eight 64 Kbyte sectors

■ Individual-sector, multiple-sector, or bulk-erase

capability

■ Individual or multiple-sector protection is user

definable