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 µm 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...)