GENERAL DESCRIPTION
The Am29LL800B is an 8 Mbit, 2.2 volt-only Flash memory organized as 1,048,576 bytes or 524,288 words. The device is offered in 44-pin SO and 48-pin TSOP packages. The word-wide data (x16) appears on DQ15–DQ0; the byte-wide (x8) data appears on DQ7–DQ0. This device requires only a single, 2.2 volt VCC supply to perform read, program, and erase operations. A standard EPROM programmer can also be used to program and erase the device.

DISTINCTIVE CHARACTERISTICS
■ Single power supply operation
    — 2.2 to 2.7 volt read and write operations for battery-powered applications
■ Manufactured on 0.35 µm process technology
    — Compatible with 0.5 µm Am29LL800 device
■ High performance
    — Access times as fast as 150 ns
■ Ultra low power consumption (typical values at 5 MHz)
    — 75 nA Automatic Sleep mode current
    — 75 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 fifteen 64 Kbyte sectors (byte mode)
    — One 8 Kword, two 4 Kword, one 16 Kword, and fifteen 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-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