AT25F4096_06 Datasheet, PDF (1/19 Pages) ATMEL Corporation – 4Mbit High Speed SPI Serial Flash Memory

Features
• Serial Peripheral Interface (SPI) Compatible
• Supports SPI Modes 0 (0,0) and 3 (1,1)
– Datasheet describes Mode 0 Operation
• 33 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
– Data Retention: 20 Years
• 8-lead EIAJ SOIC and 8-lead Small Array Package (SAP)
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 and 8-
lead SAP packages.
Table 1. Pin Configurations
Pin Name
Function
CS
Chip Select
SCK
Serial Data Clock
SI
Serial Data Input
SO
Serial Data Output
GND
Ground
VCC
Power Supply
WP
Write Protect
HOLD
Suspends Serial
Input
8-lead EIAJ SOIC
CS 1
SO 2
WP 3
GND 4
8 VCC
7 HOLD
6 SCK
5 SI
8-lead SAP
__^V_^C_^C_ ⁸
HOLD 7
SCK 6
SI 5
___
1 CS
2 _{_}S_{_}O_{_}
3 WP
4 GND
Bottom View
4Mbit High
Speed SPI
Serial Flash
Memory
4M (524,288 x 8)
AT25F4096
2454G–SFLSH–5/06