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W39V040BQZ Datasheet

  • W39V040BQZ

  • W39V040B

  • 354.68KB

  • 32頁(yè)

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W39V040B 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 ...................................................................................................................... 4
PIN DESCRIPTION..................................................................................................................... 4
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
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
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
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
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
Revision A3
7.
8.
9.
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-1-

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