SA25C020 Datasheet, PDF (3/31 Pages) List of Unclassifed Manufacturers – 2Mb EEPROM with 25MHz SPI Bus Interface

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