W39V040C Data Sheet
512K
脳
8 CMOS FLASH MEMORY
WITH LPC INTERFACE
Table of Contents-
1.
2.
3.
4.
5.
6.
GENERAL DESCRIPTION ......................................................................................................... 3
FEATURES ................................................................................................................................. 3
PIN CONFIGURATIONS............................................................................................................. 4
BLOCK DIAGRAM ...................................................................................................................... 5
PIN DESCRIPTION..................................................................................................................... 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
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
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
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
ELECTRICAL CHARACTERISTICS......................................................................................... 19
10.1 Absolute Maximum Ratings .......................................................................................... 19
10.2 Programmer interface Mode DC Operating Characteristics......................................... 19
Publication Release Date: Apr. 11, 2006
Revision A1
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