GENERAL DESCRIPTION
The Am29LV400B is a 4 Mbit, 3.0 volt-only Flash memory organized as 524,288 bytes or 262,144 words.
   
DISTINCTIVE CHARACTERISTICS
■ Single power supply operation
    — Full voltage range: 2.7 to 3.6 volt read and write
        operations for battery-powered applications
    — Regulated voltage range: 3.0 to 3.6 volt read
        and write operations and for compatibility with
        high performance 3.3 volt microprocessors
■ Manufactured on 0.35 µm process technology
    — Compatible with 0.5 µm Am29LV400 device
■ High performance
    — Full voltage range: access times as fast as 80 ns
    — Regulated voltage range: access times as fast
        as 70 ns
■ Ultra low power consumption (typical values at
    5 MHz)
    — 200 nA Automatic Sleep mode current
    — 200 nA standby mode current
    — 7 mA read current
    — 15 mA program/erase current
■ Flexible sector architecture
    — One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and
        seven 64 Kbyte sectors (byte mode)
    — One 8 Kword, two 4 Kword, one 16 Kword, and
        seven 32 Kword sectors (word mode)
    — Supports full chip erase
    — Sector Protection features:
        A hardware method of locking a sector to
        prevent any 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
■ Unlock Bypass Program Command
    — Reduces overall programming time when
        issuing multiple program command sequences
■ Top or bottom boot block configurations
    available
■ 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
■ Minimum 1,000,000 write cycle guarantee per
    sector
■ Package option
    — 48-ball FBGA
    — 48-pin TSOP
    — 44-pin SO
■ Compatibility with JEDEC standards
    — Pinout and software compatible with singlepower supply Flash
    — Superior inadvertent write protection
■ Data# Polling and toggle bits
    — Provides a software method of detecting
        program or erase operation completion
■ Ready/Busy# pin (RY/BY#)
    — Provides a hardware method of detecting
        program or erase cycle completion
■ Erase Suspend/Erase Resume
    — Suspends an erase operation to read data from,
        or program data to, a sector that is not being
        erased, then resumes the erase operation
■ Hardware reset pin (RESET#)
    — Hardware method to reset the device to reading
        array data