AT25F4096 Datasheet, PDF (1/17 Pages) ATMEL Corporation – SPI SERIAL MEMORY 4M

Features
• Serial Peripheral Interface (SPI) Compatible
• Supports SPI Modes 0 (0,0) and 3 (1,1)
– Datasheet describes Mode 0 Operation
• 20 MHz Clock Rate
• Byte Mode and 256-byte Page Mode for Program Operations
• Sector Architecture:
– Eight Sectors with 64K Bytes Each (4M)
– 256 Pages per Sector
• Product Identification Mode
• Low-voltage Operation
– 2.7 (V_CC = 2.7V to 3.6V)
• Sector Write Protection
– Protect 1/8, 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 µs/Byte Typical)
• Self-timed Sector Erase Cycle (1 second/Sector Typical)
• Single Cycle Reprogramming (Erase and Program) for Status Register
• High Reliability
– Endurance: 10,000 Write Cycles Typical
• 8-lead EIAJ SOIC
Description
The AT25F4096 provides 4,194,304 bits of serial reprogrammable Flash memory
organized as 524,288 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 AT25F4096 is available in a space-saving 8-lead EIAJ SOIC
package.
SPI Serial
Memory
4M (524,288 x 8)
AT25F4096
Advance
Information
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
8-lead EIAJ SOIC
CS 1
SO 2
WP 3
GND 4
8 VCC
7 HOLD
6 SCK
5 SI
2454C–SEEPR–8/04