W19B320BT Datasheet, PDF (2/56 Pages) Winbond – 2.7~3.6-volt write (program and erase) operations

W19B320BT/B DATASHEET
6.3.7 DQ3: Sector Erase Timer .......................................................................................................20
7. TABLE OF OPERATION MODES ................................................................................................. 21
7.1 Device Bus Operations ......................................................................................................... 21
7.2 AUTOSELECT Codes (High Voltage Method) ..................................................................... 22
7.3 Sector Address Table (Top Boot Block) ............................................................................... 23
7.4 Sector Address Table (Bottom Boot Block) .......................................................................... 25
7.5 Top Boot Sector/Sector Block Address for Protection/Unprotection) ................................... 27
7.6 CFI Query Identification String.............................................................................................. 29
7.6.1 System Interface String ..........................................................................................................29
7.6.2 Device Geometry Definition ....................................................................................................30
7.6.3 Primary Vendor-Specific Extended Query ..............................................................................31
7.6.4 Command Definitions .............................................................................................................32
7.6.5 Write Operation Status ...........................................................................................................33
7.7 Temporary Sector Unprotect Algorithm ................................................................................ 33
7.8 In-System Sector Protect/Unprotect Algorithms ................................................................... 35
7.9 Security Sector Protect Verify ............................................................................................... 36
7.10 Program Algorithm ................................................................................................................ 36
7.11 Erase Algorithm..................................................................................................................... 37
7.12 Data Polling Algorithm........................................................................................................... 37
7.13 Toggle Bit Algorithm.............................................................................................................. 38
8. ELECTRICAL CHARACTERISTICS.............................................................................................. 39
8.1 Absolute Maximum Ratings .................................................................................................. 39
8.2 Operating Ranges ................................................................................................................. 39
8.3 DC Characteristics ................................................................................................................ 40
8.4 CMOS Compatible ................................................................................................................ 40
8.5 AC Characteristics ................................................................................................................ 41
8.6 Test Condition ....................................................................................................................... 41
8.6.1 AC Test Load and Waveforms ...............................................................................................41
8.7 Read-Only Operations .......................................................................................................... 42
8.8 Hardware Reset (#RESET)................................................................................................... 42
8.9 Word/Byte Configuration (#BYTE) ........................................................................................ 42
8.10 Erase and Program Operation .............................................................................................. 43
8.11 Temporary Sector Unprotect................................................................................................. 43
8.12 Alternate #CE Controlled Erase and Program Operations ................................................... 44
9. TIMING WAVEFORMS .................................................................................................................. 45
9.1 AC Read Waveform .............................................................................................................. 45
Publication Release Date:Dec.25, 2007
-2-
Revisionv A3