SA25F020 Datasheet, PDF (3/37 Pages) List of Unclassifed Manufacturers – 2Mb Serial Flash 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
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
SA25F020 Advanced Information
SAIFUN
3
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
Fast Read (FAST_READ) ..................................... 24
Page Programming (PP) ....................................... 25
Page Erase (PE)................................................... 27
Sector Erase (SE) ................................................. 28
Bulk Erase (BE)..................................................... 29
Software Protection (SP)/ Deep Powerdown (DP) . 30
Release from Software Protect (RES) ................... 31
Release from Software Protection and Read
Electronic Signature (RES).................................... 32
Powerup and Powerdown ...................................... 33
Physical Dimensions................................................... 34
Contact Information .................................................... 37
Life Support Policy...................................................... 37