SA25C020 View Datasheet(PDF) - Saifun Semiconductors

Part Name

Description

Manufacturer

SA25C020

2Mb EEPROM with 25MHz SPI Bus Interface

Saifun Semiconductors 

Table of Contents

Features ........................................................................... 1

General Description ........................................................ 2

Memory Organization...................................................... 5

Connection Diagrams ..................................................... 6

Ordering Information ...................................................... 7

Product Specifications ................................................... 8

Absolute Maximum Ratings....................................... 8

ESD/Latch Up Specification (JEDEC 8 Spec) ........... 8

Operating Conditions................................................. 8

DC Characteristics .......................................................... 9

AC Test Conditions ....................................................... 10

Timing Diagrams ........................................................... 11

Signal Description......................................................... 13

Chip Select (CSb).................................................... 13

Serial Clock (SCK) .................................................. 13

Serial Input (SI) ....................................................... 13

Serial Output (SO)................................................... 13

Hold (HOLDb).......................................................... 13

Write Protect (WPb) ................................................ 13

SA25C020 Advanced Information

SAIFUN

3

Serial Interface Description .......................................... 14

SPI Modes............................................................... 14

Master ............................................................. 14

Slave ............................................................... 14

Transmitter/Receiver ....................................... 14

Serial Opcode.................................................. 14

Invalid Opcode ................................................ 14

Chip Select (CSb)............................................ 15

Hold Condition................................................. 15

Write Protect ................................................... 16

Functional Description ................................................. 17

Instructions.............................................................. 17

Read Status Register (RDSR) ................................. 18

Write Enable (WREN) ............................................. 20

Write Disable (WRDI).............................................. 20

Write Status Register (WRSR) ................................ 21

Read Data Bytes (READ) ........................................ 23

Byte or Page Write (PW)......................................... 24

Read Electronic Signature (Read_Id) ...................... 26

Powerup and Powerdown ........................................ 27

Physical Dimensions..................................................... 28

Contact Information ...................................................... 31

Life Support Policy........................................................ 31

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