W19B320B Datasheet, PDF (2/51 Pages) Winbond – 32Mbit, 2.7~3.6-volt single bank CMOS flash memory

W19B320BT/B DATASHEET
6.3.5 DQ5: Exceeded Timing Limits ......................................................................................................15
6.3.6 DQ3: Sector Erase Timer .............................................................................................................15
7. TABLE OF OPERATION MODES .........................................................................................................16
7.1 Device Bus Operations.................................................................................................................16
7.2 AUTOSELECT Codes (High Voltage Method) .............................................................................17
7.3 Sector Address Table (Top Boot Block) .......................................................................................18
7.4 Sector Address Table (Bottom Boot Block)..................................................................................20
7.5 CFI Query Identification String .....................................................................................................25
7.5.1 System Interface String ................................................................................................................25
7.5.2
7.5.3
Device Geometry Definition..........................................................................................................26
Primary Vendor-Specific Extended Query....................................................................................27
7.5.4 Command Definitions ...................................................................................................................28
7.5.5 Write Operation Status .................................................................................................................29
7.6 Temporary Sector Unprotect Algorithm........................................................................................30
7.7 In-System Sector Protect/Unprotect Algorithms...........................................................................31
7.8 Security Sector Protect Verify.......................................................................................................32
7.9 Program Algorithm........................................................................................................................32
7.10 Erase Algorithm.........................................................................................................................33
7.11 Data Polling Algorithm ..............................................................................................................33
7.12 Toggle Bit Algorithm..................................................................................................................34
8. ELECTRICAL CHARACTERISTICS......................................................................................................35
8.1 Absolute Maximum Ratings..........................................................................................................35
8.2 Operating Ranges.........................................................................................................................35
8.3 DC Characteristics........................................................................................................................36
8.4 CMOS Compatible........................................................................................................................36
8.5 AC Characteristics ........................................................................................................................37
8.6 Test Condition...............................................................................................................................37
8.6.1 AC Test Load and Waveforms .....................................................................................................37
8.7 Read-Only Operations..................................................................................................................38
8.8 Hardware Reset (#RESET) ..........................................................................................................38
8.9 Word/Byte Configuration (#BYTE)................................................................................................38
8.10 Erase and Program Operation ..................................................................................................39
8.11 Temporary Sector Unprotect.....................................................................................................39
8.12 Alternate #CE Controlled Erase and Program Operations .......................................................40
9. TIMING WAVEFORMS ..........................................................................................................................41
9.1 AC Read Waveform......................................................................................................................41
9.2 Reset Waveform ...........................................................................................................................41
Publication Release Date:Dec, 22, 2008
-2-
Revisionv A5