W39V040B Datasheet, PDF (1/32 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 .................................................................................................... 5
6.6 Program Operation ............................................................................................................ 6
6.7 Hardware Data Protection ................................................................................................. 6
6.8 WRITE OPERATION STATUS.......................................................................................... 6
7. REGISTER FOR LPC MODE ..................................................................................................... 8
7.1 General Purpose Inputs Register for LPC Mode ............................................................... 8
7.2 Identification Input Pins ID[3:0] .......................................................................................... 8
7.3 Product Identification Registers......................................................................................... 8
8. TABLE OF OPERATING MODES .............................................................................................. 9
8.1 Operating Mode Selection - Programmer Mode................................................................ 9
8.2 Operating Mode Selection - LPC Mode............................................................................. 9
8.3 LPC Cycle Definition.......................................................................................................... 9
9. TABLE OF COMMAND DEFINITION ....................................................................................... 10
9.1 Embedded Programming Algorithm ................................................................................ 11
9.2 Embedded Erase Algorithm............................................................................................. 12
9.3 Embedded #Data Polling Algorithm................................................................................. 13
9.4 Embedded Toggle Bit Algorithm...................................................................................... 14
9.5 Software Product Identification and Boot Block Lockout Detection Acquisition Flow ..... 15
10. ELECTRICAL CHARACTERISTICS......................................................................................... 16
10.1 Absolute Maximum Ratings......................................................................................... 16
10.2 Programmer interface Mode DC Operating Characteristics ....................................... 16
10.3 LPC Interface Mode DC Operating Characteristics .................................................... 17
10.4 Power-up Timing ......................................................................................................... 17
10.5 Capacitance................................................................................................................. 17
10.6 Programmer Interface Mode AC Characteristics ........................................................ 18
10.7 Read Cycle Timing Parameters .................................................................................. 19
Publication Release Date: April 14, 2005
-1-
Revision A3