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AT29C040A-12TC Datasheet(PDF) 1 Page - ATMEL Corporation

Part No. AT29C040A-12TC
Description  4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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AT29C040A-12TC Datasheet(HTML) 1 Page - ATMEL Corporation

 
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1
Features
Fast Read Access Time – 90 ns
5-volt Only Reprogramming
Sector Program Operation
– Single Cycle Reprogram (Erase and Program)
– 2048 Sectors (256 Bytes/Sector)
– Internal Address and Data Latches for 256 Bytes
Internal Program Control and Timer
Hardware and Software Data Protection
Two 16K Bytes Boot Blocks with Lockout
Fast Sector Program CycleTime–10ms
DATA Polling for End of Program Detection
Low Power Dissipation
– 40mAActiveCurrent
– 100 µA CMOS Standby Current
Typical Endurance > 10,000 Cycles
Single 5V
± 10% Supply
CMOS and TTL Compatible Inputs and Outputs
Description
The AT29C040A is a 5-volt only in-system Flash Programmable and Erasable Read
Only Memory (PEROM). Its 4 megabits of memory is organized as 524,288 words by
8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS EEPROM technology,
the device offers access times up to 90 ns, and a low 220 mW power dissipation.
When the device is deselected, the CMOS standby current is less than 100 µA. The
device endurance is such that any sector can typically be written to in excess of
10,000 times. The programming algorithm is compatible with other devices in Atmel’s
5-volt only Flash family.
4-megabit
(512K x 8)
5-volt Only
256-byte Sector
Flash Memory
AT29C040A
Rev. 0333I–FLASH–05/02
DIP Top View
Pin Configurations
Pin Name
Function
A0 - A18
Addresses
CE
Chip Enable
OE
Output Enable
WE
Write Enable
I/O0 - I/O7
Data Inputs/Outputs
NC
No Connect
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A18
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
GND
VCC
WE
A17
A14
A13
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
PLCC Top View
TSOP Top View – Type 1
5
6
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13
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21
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
A14
A13
A8
A9
A11
OE
A10
CE
I/O7
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5
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17
A11
A9
A8
A13
A14
A17
WE
VCC
A18
A16
A15
A12
A7
A6
A5
A4
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2
A3


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