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AT49F004 Datasheet

  • AT49F004

  • ATMEL Corporation [4-Megabit 512K x 8/ 256K x 16 CMOS Flash...

  • ATMEL   ATMEL

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Features
鈥?/div>
Single Voltage Operation
鈥?/div>
鈥?/div>
鈥?/div>
鈥?5V Read
鈥?5V Programming
Fast Read Access Time - 55 ns
Internal Erase/Program Control
Sector Architecture
鈥?One 8K Words (16K bytes) Boot Block with Programming Lockout
鈥?Two 4K Words (8K bytes) Parameter Blocks
鈥?One 240K Words (480K bytes) Main Memory Array Block
Fast Sector Erase Time - 10 seconds
Byte-by-Byte or Word-By-Word Programming - 10
碌s
Typical
Hardware Data Protection
DATA Polling For End Of Program Detection
Low-Power Dissipation
鈥?50 mA Active Current
鈥?300
碌A(chǔ)
CMOS Standby Current
Typical 10,000 Write Cycles
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Description
The AT49F004(T) and AT49F4096A(T) are 5-volt, 4-megabit Flash Memories orga-
nized as 524,288 words of 8 bits each or 256K words of 16 bits each. Manufactured
with Atmel鈥檚 advanced nonvolatile CMOS technology, the devices offer access times
to 55 ns with power dissipation of just 275 mW. When deselected, the CMOS standby
current is less than 300
碌A(chǔ).
The device contains a user-enabled 鈥渂oot block鈥?protection feature. Two versions of
the feature are available: the AT49F004/4096A locates the boot block at lowest order
addresses (鈥渂ottom boot鈥?; the AT49F004T/4096AT locates it at highest order
addresses (鈥渢op boot鈥?.
To allow for simple in-system reprogrammability, the AT49F004(T)/4096A(T) does not
require high input voltages for programming. Reading data out of the device is similar
to reading from an EPROM; it has standard CE, OE, and WE inputs to avoid bus con-
tention. Reprogramming the AT49F004(T)/4096A(T) is performed by first erasing a
4-Megabit
(512K x 8/
256K x 16)
CMOS Flash
Memory
AT49F004
AT49F004T
AT49F4096A
AT49F4096AT
Preliminary
(continued)
Pin Configurations
Pin Name
A0 - A18
CE
OE
WE
RESET
RDY/BUSY
I/O0 - I/O14
I/O15(A-1)
BYTE
NC
Function
Addresses
Chip Enable
Output Enable
Write Enable
Reset
Ready/Busy Output
Data Inputs/Outputs
I/O15 (Data Input/Output, Word Mode)
A-1 (LSB Address Input, Byte Mode)
Selects Byte or Word Mode
No Connect
Rev. 1167A鈥?9/98
1

AT49F004 PDF文件相關(guān)型號

AT49F004T

AT49F004相關(guān)型號PDF文件下載

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    版本
    描述
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  • 英文版
    PROTECTIVE GUARD KB SER SQ&RND
  • 英文版
    COVER DUST POLY FOR KB SERIES
  • 英文版
    CENTER BARRIER BLACK POLY LB SER
  • 英文版
    PROTECTIVE GUARD FOR LB SER SQ
  • 英文版
    Round Pushbutton Switch Cap Black Slip On
  • 英文版
    Round Pushbutton Switch Cap Red Slip On
  • 英文版
    128K x 8 (1M bit), 2.7-Volt (BV)/3-Volt (LV) Read and 2.7-Vo...
  • 英文版
    1-Megabit 128K x 8 5-volt Only Flash Memory
    ATMEL
  • 英文版
    1-Megabit 128K x 8 5-volt Only Flash Memory
    ATMEL [ATM...
  • 英文版
    2-Megabit 256K x 8 5-volt Only Flash Memory
    ATMEL
  • 英文版
    2-megabit (256K x 8) 5-volt Only Flash Memory
    ATMEL [ATM...
  • 英文版
    2-Megabit 256K x 8 5-volt Only Flash Memory
    ATMEL [ATM...
  • 英文版
    4-Megabit CMOS Flash Memory
    ETC
  • 英文版
    ATMEL Corporation [4-Megabit 512K x 8/ 256K x 16 CMOS Flash...
    ATMEL
  • 英文版
    8-Megabit 5-volt Only Flash Memory
    ETC
  • 英文版
    8-Megabit 1M x 8 5-volt Only Flash Memory
    ATMEL
  • 英文版
    ATMEL Corporation [1-Megabit 128K x 8 5-volt Only CMOS Flas...
    ATMEL
  • 英文版
    ATMEL Corporation [2-Megabit 256K x 8 5-volt Only CMOS Flas...
    ATMEL
  • 英文版
    4 Megabit 512K x 8 5-volt Only CMOS Flash Memory
    ATMEL
  • 英文版
    4-Megabit 512K x 8 5-volt Only CMOS Flash Memory
    ATMEL [ATM...

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