W39V040B_07 Datasheet, PDF (1/33 Pages) Winbond – 512K × 8 CMOS FLASH MEMORY WITH LPC INTERFACE

W39V040B Data Sheet
Table of Contents-
512K × 8 CMOS FLASH MEMORY
WITH LPC INTERFACE
1. GENERAL DESCRIPTION ......................................................................................................... 3
2. FEATURES ................................................................................................................................. 3
3. PIN CONFIGURATIONS............................................................................................................. 4
4. BLOCK DIAGRAM ...................................................................................................................... 4
5. PIN DESCRIPTION..................................................................................................................... 4
6. FUNCTIONAL DESCRIPTION.................................................................................................... 5
6.1 Interface Mode Selection and Description......................................................................... 5
6.2 Read (Write) Mode ............................................................................................................ 5
6.3 Reset Operation................................................................................................................. 5
6.4 Boot Block Operation and Hardware Protection at Initial- #TBL & #WP ........................... 5
6.5 Sector Erase Command .................................................................................................... 6
6.6 Program Operation ............................................................................................................ 6
6.7 Hardware Data Protection ................................................................................................. 6
6.8 WRITE OPERATION STATUS.......................................................................................... 6
7. REGISTER FOR LPC MODE ..................................................................................................... 9
7.1 General Purpose Inputs Register for LPC Mode............................................................... 9
7.2 Identification Input Pins ID[3:0] .......................................................................................... 9
7.3 Product Identification Registers......................................................................................... 9
8. TABLE OF OPERATING MODES ............................................................................................ 10
8.1 Operating Mode Selection - Programmer Mode.............................................................. 10
8.2 Operating Mode Selection - LPC Mode........................................................................... 10
8.3 LPC Cycle Definition........................................................................................................ 10
9. TABLE OF COMMAND DEFINITION ....................................................................................... 11
9.1 Embedded Programming Algorithm ................................................................................ 12
9.2 Embedded Erase Algorithm............................................................................................. 13
9.3 Embedded #Data Polling Algorithm................................................................................. 14
9.4 Embedded Toggle Bit Algorithm...................................................................................... 15
9.5 Software Product Identification and Boot Block Lockout Detection Acquisition Flow ..... 16
10. ELECTRICAL CHARACTERISTICS......................................................................................... 17
10.1 Absolute Maximum Ratings......................................................................................... 17
10.2 Programmer interface Mode DC Operating Characteristics ....................................... 17
10.3 LPC Interface Mode DC Operating Characteristics .................................................... 18
10.4 Power-up Timing ......................................................................................................... 18
10.5 Capacitance................................................................................................................. 18
10.6 Programmer Interface Mode AC Characteristics ........................................................ 19
10.7 Read Cycle Timing Parameters .................................................................................. 20
Publication Release Date: December 12, 2005
-1-
Revision A4