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GENERAL DESCRIPTION

The Am29LV640DU/Am29LV641DU is a 64 Mbit, 3.0 Volt (3.0 V to 3.6 V) single power supply flash memory devices organized as 4,194,304 words. Data appears on DQ0-DQ15. The device is designed to be programmed in-system with the standard system 3.0 volt VCC supply. A 12.0 volt VPP is not required for programor erase operations. The device can also be pro grammed in standard EPROM programmers.

DISTINCTIVE CHARACTERISTICS

■ Single power supply operation

— 3.0 to 3.6 volt read, erase, and program operations

■ VersatileIO? control

— Device generates output voltages and tolerates data

input voltages on the DQ input/ouputs as determined

by the voltage on VIO

■ High performance

— Access times as fast as 90 ns

■ Manufactured on 0.23 ?m process technology

■ CFI (Common Flash Interface) compliant

— Provides device-specific information to the system,

allowing host software to easily reconfigure for

different Flash devices

■ SecSi (Secured Silicon) Sector region

— 128-word sector for permanent, secure identification

through an 8-word random Electronic Serial Number

— May be programmed and locked at the factory or by

the customer

— Accessible through a command sequence

■ Ultra low power consumption (typical values at 3.0 V, 5 MHz)

— 9 mA typical active read current

— 26 mA typical erase/program current

— 200 nA typical standby mode current

■ Flexible sector architecture

— One hundred twenty-eight 32 Kword sectors

■ Sector Protection

— A hardware method to lock a sector to prevent

program or erase operations within that sector

— Sectors can be locked in-system or via programming

equipment

— Temporary Sector Unprotect feature allows code

changes in previously locked sectors

■ Embedded Algorithms

— Embedded Erase algorithm automatically

preprograms and erases the entire chip or any

combination of designated sectors

— Embedded Program algorithm automatically writes

and verifies data at specified addresses

■ Compatibility with JEDEC standards

— Pinout and software compatible with single-power

supply Flash

— Superior inadvertent write protection

■ Minimum 1 million erase cycle guarantee per sector

■ Package options

— 48-pin TSOP (Am29LV641DH/DL only)

— 56-pin SSOP (Am29LV640DH/DL only)

— 63-ball Fine-Pitch BGA (Am29LV640DU only)

— 64-ball Fortified BGA (Am29LV640DU only) (Continue...)