2 Megabit (256 K x 8-Bit)
CMOS 5.0 Volt-only Boot Sector Flash Memory
DISTINCTIVE CHARACTERISTICS
■
Single power supply operation
— 5.0 Volt-only operation for read, erase, and
program operations
— Minimizes system level requirements
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Manufactured on 0.32 µm process technology
— Compatible with 0.5 µm Am29F002 device
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High performance
— Access times as fast as 55 ns
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Low power consumption (typical values at
5 MHz)
— 1 µA standby mode current
— 20 mA read current
— 30 mA program/erase current
■
Flexible sector architecture
— One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and
three 64 Kbyte sectors
— 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 via programming equipment
Temporary Sector Unprotect feature allows code
changes in previously locked sectors
■
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
■
20-year data retention at 125
°
C
— Reliable operation for the life of the system
■
Package option
— 32-pin PDIP
— 32-pin TSOP
— 32-pin PLCC
■
Compatibility with JEDEC standards
— Pinout and software compatible with
single-power supply Flash
— Superior inadvertent write protection
■
Data# Polling and toggle bits
— Provides a software method of detecting
program or erase operation 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 (not available on Am29F002NB)