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29LV400BA Datasheet

  • 29LV400BA

  • 4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only ...

  • 486.27KB

  • 40頁

  • AMD

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PRELIMINARY
Am29LV400
4 Megabit (512 K x 8-Bit/256 K x 16-Bit)
CMOS 3.0 Volt-only Boot Sector Flash Memory
DISTINCTIVE CHARACTERISTICS
s
Single power supply operation
鈥?Full voltage range: 2.7 to 3.6 volt read and write
operations for battery-powered applications
鈥?Regulated voltage range: 3.0 to 3.6 volt read
and write operations and for compatibility with
high performance 3.3 volt microprocessors
s
High performance
鈥?Full voltage range: access times as fast as 100
ns
鈥?Regulated voltage range: access times as fast
as 90 ns
s
Ultra low power consumption (typical values at
5 MHz)
鈥?200 nA Automatic Sleep mode current
鈥?200 nA standby mode current
鈥?10 mA read current
鈥?20 mA program/erase current
s
Flexible sector architecture
鈥?One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and
seven 64 Kbyte sectors (byte mode)
鈥?One 8 Kword, two 4 Kword, one 16 Kword, and
seven 32 Kword sectors (word mode)
鈥?Supports full chip erase
鈥?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
s
Top or bottom boot block configurations
available
s
Embedded Algorithms
鈥?Embedded Erase algorithm automatically
preprograms and erases the entire chip or any
combination of designated sectors
鈥?Embedded Program algorithm automatically
writes and verifies data at specified addresses
s
Typical 1,000,000 write cycles per sector
(100,000 cycles minimum guaranteed)
s
Package option
鈥?48-ball FBGA
鈥?48-pin TSOP
鈥?44-pin SO
s
Compatibility with JEDEC standards
鈥?Pinout and software compatible with single-
power supply Flash
鈥?Superior inadvertent write protection
s
Data# Polling and toggle bits
鈥?Provides a software method of detecting
program or erase operation completion
s
Ready/Busy# pin (RY/BY#)
鈥?Provides a hardware method of detecting
program or erase cycle completion
s
Erase Suspend/Erase Resume
鈥?Suspends an erase operation to read data from,
or program data to, a sector that is not being
erased, then resumes the erase operation
s
Hardware reset pin (RESET#)
鈥?Hardware method to reset the device to reading
array data
Publication#
20514
Rev:
C
Amendment/+1
Issue Date:
March 1998

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