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AT29LV020 Datasheet

  • AT29LV020

  • 2 Megabit 256K x 8 3-volt Only CMOS Flash Memory

  • 10頁

  • ATMEL   ATMEL

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AT29LV020
Features
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Single Voltage, Range 3V to 3.6V Supply
3-Volt-Only Read and Write Operation
Software Protected Programming
Fast Read Access Time - 200 ns
Low Power Dissipation
15 mA Active Current
20
碌A
CMOS Standby Current
Sector Program Operation
Single Cycle Reprogram (Erase and Program)
1024 Sectors (256 bytes/sector)
Internal Address and Data Latches for 256-Bytes
Two 8 KB Boot Blocks with Lockout
Fast Sector Program Cycle Time - 20 ms
Internal Program Control and Timer
DATA Polling for End of Program Detection
Typical Endurance > 10,000 Cycles
CMOS and TTL Compatible Inputs and Outputs
Commercial and Industrial Temperature Ranges
2 Megabit
(256K x 8)
3-volt Only
CMOS Flash
Memory
Description
The AT29LV020 is a 3-volt-only in-system Flash programmable and erasable read
only memory (PEROM). Its 2 megabits of memory is organized as 262,144 bytes by
8 bits. Manufactured with Atmel鈥檚 advanced nonvolatile CMOS technology, the device
offers access times to 200 ns with power dissipation of just 54 mW over the commer-
cial temperature range. When the device is deselected, the CMOS standby current is
less than 20
碌A.
The device endurance is such that any sector can typically be written
to in excess of 10,000 times.
To allow for simple in-system reprogrammability, the AT29LV020 does not require
high input voltages for programming. Five-volt-only commands determine the opera-
tion of the device. Reading data out of the device is similar to reading from an
AT29LV020
Pin Configurations
Pin Name
A0 - A17
CE
OE
WE
Function
Addresses
Chip Enable
Output Enable
Write Enable
(continued)
I/O0 - I/O7 Data Inputs/Outputs
NC
No Connect
PLCC Top View
TSOP Top View
Type 1
0565A
4-73

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