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AT25F2048 Datasheet

  • AT25F2048

  • 2Mbit High Speed SPI Serial Flash Memory

  • 572.00KB

  • 18頁

  • ATMEL   ATMEL

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Features
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Serial Peripheral Interface (SPI) Compatible
Supports SPI Modes 0 (0,0) and 3 (1,1)
20 MHz Clock Rate
Byte Mode and 256-byte Page Mode for Program Operations
Sector Architecture:
鈥?Four Sectors with 64K Bytes Each
鈥?256 Pages per Sector
Product Identification Mode
Low-voltage Operation
鈥?2.7 (V
CC
= 2.7V to 3.6V)
Sector Write Protection
鈥?Protect 1/4, 1/2 or Entire Array
Write Protect (WP) Pin and Write Disable Instructions for
both Hardware and Software Data Protection
Self-timed Program Cycle (30 碌s/Byte Typical)
Self-timed Sector Erase Cycle (1 second/Sector Typical)
Single Cycle Reprogramming (Erase and Program) for Status Register
High Reliability
鈥?Endurance: 10,000 Write Cycles Typical
8-lead JEDEC SOIC
SPI Serial
Memory
2M (262,144 x 8)
AT25F2048
Preliminary
Description
The AT25F2048 provides 2,097,152 bits of serial reprogrammable Flash memory
organized as 262,144 words of 8 bits each. The device is optimized for use in many
industrial and commercial applications where low-power and low-voltage operation
are essential. The AT25F2048 is available in a space-saving 8-lead JEDEC SOIC
package.
Pin Configurations
Pin Name
CS
SCK
SI
SO
GND
VCC
WP
HOLD
Function
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Write Protect
Suspends Serial Input
CS
SO
WP
GND
8-lead SOIC
1
2
3
4
8
7
6
5
VCC
HOLD
SCK
SI
Rev. 2455D鈥揝EEPR鈥?/04
1

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