GENERAL DESCRIPTION

The A29DL32x family consists of 32 megabit, 3.0 volt-only flash memory devices, organized as 2,097,152 words of 16 bits each or 4,194,304 bytes of 8 bits each. Word mode data appears on I/O0–I/O15; byte mode data appears on I/O0–I/O7. The device is designed to be programmed in-system with the standard 3.0 volt VCC supply, and can also be programmed in standard EPROM programmers.

DISTINCTIVE CHARACTERISTICS

ARCHITECTURAL ADVANTAGES

■ Simultaneous Read/Write operations

- Data can be continuously read from one bank while executing erase/program functions in other bank

- Zero latency between read and write operations

■ Multiple bank architectures

- Three devices available with different bank sizes (refer to Table 2)

■ Package options

- 48-ball TFBGA

- 48-pin TSOP

■ Top or bottom boot block

■ Manufactured on 0.18 µm process technology

- Compatible with AMD AM29DL32xD device

■ Compatible with JEDEC standards

- Pinout and software compatible with single-power-supply flash standard

PERFORMANCE CHARACTERISTICS

■ High performance

- Access time as fast as 70ns

- Program time: 7µs/word typical utilizing Accelerate function

■ Ultra low power consumption (typical values)

- 2mA active read current at 1MHz

- 10mA active read current at 5MHz

- 200nA in standby or automatic sleep mode

■ Minimum 1 million write cycles guaranteed per sector

■ 20 Year data retention at 125°C

- Reliable operation for the life of the system

SOFTWARE FEATURES

■ Supports Common Flash Memory Interface (CFI)

■ Erase Suspend/Erase Resume

- Suspends erase operations to allow programming in same bank ■ Software temporary sector/sector block unprotect command

■ Software sector protect/unprotect command

■ Data Polling and Toggle Bits

- Provides a software method of detecting the status of program or erase cycles

■ Unlock Bypass Program command

- Reduces overall programming time when issuing multiple program command sequences

HARDWARE FEATURES

■ Any combination of sectors can be erased

■ Ready/Busy output (RY/BY )

- Hardware method for detecting program or erase cycle completion

■ Hardware reset pin (RESET)

- Hardware method of resetting the internal state machine to reading array data

■ WP /ACC input pin

- Write protect ( WP ) function allows protection of two outermost boot sectors, regardless of sector protect status

- Acceleration (ACC) function accelerates program timing

■ Sector protection

- Hardware method of locking a sector, either in-system or using programming equipment, to prevent any program or erase operation within that sector

- Temporary Sector Unprotect allows changing data in protected sectors in-system