GENERAL DESCRIPTION

The Am29LV040B is a single power supply, 4 Mbit, 3.0 Volt-only Flash memory device organized as 524,288 bytes. The data appears on DQ0-DQ7. The device is available in 32-pin PLCC and 32-pin TSOP packages. All read, erase, and program operations are accomplished using only a single power supply. The device can also be programmed in standard EPROM programmers.

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 0.32 μm process technology

■ High performance

— Full voltage range: access times as fast as 70 ns

— Regulated voltage range: access times as fast as 60 ns

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

— Automatic sleep mode: 0.2 μA

— Standby mode: 0.2 μA

— Read mode: 7 mA

— Program/erase mode: 15 mA

■ Flexible sector architecture

— Eight 64 Kbyte sectors

— Any combination of sectors can be erased; supports full chip erase

— Sector Protection features:

Hardware method of locking a sector to prevent any program or erase operations within that sector

Sectors can be locked via programming equipment

■ Unlock Bypass Program Command

— Reduces overall programming time when issuing multiple program command sequences

■ Embedded Algorithms

— Embedded Erase algorithms automatically preprogram and erase the entire chip or any combination of designated sectors

— Embedded Program algorithms automatically writes and verifies data at specified addresses ■ Minimum 1,000,000 erase cycles guaranteed

■ 20-year data retention at 125°C

— Reliable operation for the life of the system

■ Package option

— 32-pin PLCC

— 32-pin TSOP

■ 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 cycle completion

■ Erase Suspend/Resume

— Supports reading data from or programming data to a sector not being erased