W39V040C Datasheet, PDF (1/36 Pages) Winbond – 512K × 8 CMOS FLASH MEMORY WITH LPC INTERFACE

W39V040C Data Sheet
512K × 8 CMOS FLASH MEMORY
WITH LPC INTERFACE
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 3
2. FEATURES ................................................................................................................................. 3
3. PIN CONFIGURATIONS............................................................................................................. 4
4. BLOCK DIAGRAM ...................................................................................................................... 5
5. PIN DESCRIPTION..................................................................................................................... 6
6. FUNCTIONAL DESCRIPTION.................................................................................................... 7
6.1 Interface Mode Selection and Description...................................................................... 7
6.2 Read (Write) Mode ......................................................................................................... 7
6.3 Reset Operation.............................................................................................................. 7
6.4 Accelerated Program Operation ..................................................................................... 7
6.5 Boot Block Operation and Hardware Protection at Initial- #TBL & #WP ........................ 7
6.6 Sector/Page Erase Command ........................................................................................ 8
6.7 Program Operation ......................................................................................................... 8
6.8 Hardware Data Protection .............................................................................................. 8
6.9 Write operation status..................................................................................................... 8
6.10 DQ7: #Data Polling ......................................................................................................... 9
6.11 RY/#BY: Ready/#Busy.................................................................................................... 9
6.12 DQ6: Toggle Bit .............................................................................................................. 9
6.13 DQ5: Exceeded Timing Limits ...................................................................................... 10
7. REGISTER FOR LPC MODE ................................................................................................... 11
7.1 General Purpose Inputs Register for LPC Mode .......................................................... 11
7.2 Identification Input Pins ID[3:0] ..................................................................................... 11
7.3 Product Identification Registers .................................................................................... 11
8. TABLE OF OPERATING MODES ............................................................................................ 12
8.1 Operating Mode Selection - Programmer Mode........................................................... 12
8.2 Operating Mode Selection - LPC Mode........................................................................ 12
8.3 LPC Cycle Definition..................................................................................................... 12
9. TABLE OF COMMAND DEFINITION ....................................................................................... 13
9.1 Embedded Programming Algorithm.............................................................................. 14
9.2 Embedded Erase Algorithm.......................................................................................... 15
9.3 Embedded #Data Polling Algorithm.............................................................................. 16
9.4 Embedded Toggle Bit Algorithm ................................................................................... 17
9.5 Software Product Identification and Boot Block Lockout Detection Acquisition Flow .. 18
10. ELECTRICAL CHARACTERISTICS......................................................................................... 19
10.1 Absolute Maximum Ratings .......................................................................................... 19
10.2 Programmer interface Mode DC Operating Characteristics......................................... 19
Publication Release Date: Apr. 11, 2006
-1-
Revision A1