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AT49F040T-90TC Datasheet

  • AT49F040T-90TC

  • ATMEL Corporation [4-Megabit 512K x 8 5-volt Only CMOS Flas...

  • ATMEL   ATMEL

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Features
鈥?/div>
Single Voltage Operation
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?5V Read
鈥?5V Reprogramming
Fast Read Access Time - 70 ns
Internal Program Control and Timer
16K bytes Boot Block With Lockout
Fast Erase Cycle Time - 10 seconds
Byte By Byte Programming - 50
碌s/Byte
Hardware Data Protection
DATA Polling For End Of Program Detection
Low Power Dissipation
鈥?50 mA Active Current
鈥?100
碌A
CMOS Standby Current
Typical 10,000 Write Cycles
Description
The AT49F040 is a 5-volt-only in-system Flash Memory. Its 4 megabits of memory is
organized as 524,288 words by 8 bits. Manufactured with Atmel鈥檚 advanced nonvola-
tile CMOS technology, the device offers access times to 70 ns with power dissipation
of just 275 mW over the commercial temperature range. When the device is dese-
lected, the CMOS standby current is less than 100
碌A.
The device contains a user-enabled 鈥渂oot block鈥?protection feature. Two versions of
the feature are available: the AT49F040 locates the boot block at lowest order
addresses (鈥渂ottom boot鈥?; the AT49F040T locates it at highest order addresses (鈥渢op
boot鈥?.
(continued)
4-Megabit
(512K x 8)
5-volt Only
CMOS
Flash Memory
AT49F040
AT49F040T
AT49F040/040T
Pin Configurations
Pin Name
A0 - A18
CE
OE
WE
I/O0 - I/O7
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
DIP Top View
AT49F040/040T
PLCC Top View
TSOP Top View
Type 1
Rev. 0998A-A鈥?1/98
1

AT49F040T-90TC相關型號PDF文件下載

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    PROTECTIVE GUARD KB SER SQ&RND
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    COVER DUST POLY FOR KB SERIES
  • 英文版
    CENTER BARRIER BLACK POLY LB SER
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    PROTECTIVE GUARD FOR LB SER SQ
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    Round Pushbutton Switch Cap Black Slip On
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    Round Pushbutton Switch Cap Red Slip On
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    8-Megabit 1M x 8 5-volt Only Flash Memory
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  • 英文版
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