W19B(L)320ST/B
6.3.5 Reading Toggle Bits DQ6/DQ2 ......................................................................................16
6.3.6 DQ5: Exceeded Timing Limits........................................................................................16
6.3.7 DQ3: Sector Erase Timer ...............................................................................................17
7.
TABLE OF OPERATION MODES ............................................................................................ 18
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
Device Bus Operations................................................................................................. 18
Autoselect Codes (High Voltage Method) .................................................................... 19
CFI Query Identification String...................................................................................... 26
Command Definitions ................................................................................................... 29
Write Operation Status ................................................................................................. 30
Temporary Sector Unprotect Algorithm........................................................................ 31
In-System Sector Protect/Unprotect Algorithms........................................................... 32
Program Algorithm........................................................................................................ 33
Erase Algorithm ............................................................................................................ 33
7.10 Data Polling Algorithm .................................................................................................. 34
7.11 Toggle Bit Algorithm ..................................................................................................... 35
8.
ELECRICAL CHARACTERISTICS........................................................................................... 36
8.1
8.2
Absolute Maximum Ratings.......................................................................................... 36
Operating Ranges......................................................................................................... 36
1.1.1............................................................................................................................................36
1.1.1............................................................................................................................................36
DC Characteristics........................................................................................................ 37
8.3.1 CMOS Compatible..........................................................................................................37
AC Characteristics........................................................................................................ 38
8.4.1 Test Condition ................................................................................................................38
8.4.2 AC Test Load and Waveforms .......................................................................................38
8.4.3 Read-Only Operations....................................................................................................39
8.4.4 Hardware Reset (#RESET) ............................................................................................39
8.4.5 Word/Byte Configuration (#BYTE)..................................................................................39
8.4.6 Erase And Program Operation .......................................................................................40
8.4.7 Temporary Sector Unprotect ..........................................................................................40
8.4.8 Alternate #CE Controlled Erase and Program Operations..............................................41
8.3
8.4
9.
TIMING WAVEFORMS............................................................................................................. 42
9.1
9.2
9.3
9.4
9.5
9.6
AC Read Waveform...................................................................................................... 42
Reset Waveform........................................................................................................... 42
#BYTE Waveform for Read Operation ......................................................................... 43
#BYTE Waveform for Write Operation ......................................................................... 43
Programming Waveform............................................................................................... 44
Accelerated Programming Waveform........................................................................... 44
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