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AM29BDS643D Datasheet(PDF) 1 Page - Advanced Micro Devices

Part No. AM29BDS643D
Description  64 Megabit (4 M x 16-Bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
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Maker  AMD [Advanced Micro Devices]
Homepage  http://www.amd.com
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AM29BDS643D Datasheet(HTML) 1 Page - Advanced Micro Devices

 
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PRELIMINARY
This Data Sheet states AMD’s current technical specifications regarding the Product described herein. This Data
Sheet may be revised by subsequent versions or modifications due to changes in technical specifications.
Publication# 23709
Rev: A Amendment/+3
Issue Date: December 21, 2000
Refer to AMD’s Website (www.amd.com) for the latest information.
Am29BDS643D
64 Megabit (4 M x 16-Bit)
CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
DISTINCTIVE CHARACTERISTICS
s Single 1.8 volt read, program and erase (1.7 to
1.9 volt)
s Multiplexed Data and Address for reduced I/O
count
— A0–A15 multiplexed as D0–D15
— Addresses are latched with AVD# control inputs
while CE# low
s Simultaneous Read/Write operation
— Data can be continuously read from one bank
while executing erase/program functions in other
bank
— Zero latency between read and write operations
s Read access times at 54 MHz/40 MHz
— Burst access times of 13.5/20 ns @ 30 pF
at industrial temperature range
— Asynchronous random access times
of 90/90 ns @ 30 pF
— Synchronous random access times
of 106/120 ns @ 30 pF
s Burst length
— Continuous linear burst
s Power dissipation (typical values, 8 bits
switching, CL = 30 pF)
— Burst Mode Read: 25 mA
— Simultaneous Operation: 40 mA
— Program/Erase: 15 mA
— Standby mode: 0.2 µA
s Sector Architecture
— Eight 4 Kword sectors and one hundred
twenty-seven 32 Kword sectors
— Bank A contains the eight 4 Kword sectors and
thirty-one 32 Kword sectors
— Bank B contains ninety-six 32 Kword sectors
s Sector Protection
— Software command sector locking
— WP# protects the last two boot sectors
— All sectors locked when VPP = VIL
s Handshaking feature
— Provides host system with minimum possible
latency by monitoring RDY
s Software command set compatible with JEDEC
42.4 standards
— Backwards compatible with Am29F and Am29LV
families
s Minimum 1 million erase cycle guarantee
per sector
s 20-year data retention at 125
°C
— Reliable operation for the life of the system
s 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
s Data# Polling and toggle bits
— Provides a software method of detecting
program and erase operation completion
s Erase Suspend/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
s Hardware reset input (RESET#)
— Hardware method to reset the device for reading
array data
s CMOS compatible inputs, CMOS compatible
outputs
s Low VCC write inhibit
s 48-Ball FBGA package


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