W19B320ATB Datasheet, PDF (47/53 Pages) Winbond – 4M × 8/2M × 16 BITS 3V FLEXIBLE BANK FLASH MEMORY

W19B320AT/B
9.11 DQ 2 vs. DQ6 Waveform
#WE
Enter
Embedded
Erasing
DQ6
Erase
Suspend
Erase
Enter Erase
Suspend Program
Erase Suspend
Read
Erase
Suspend
Program
Erase
Resume
Erase Suspend
Read
Erase
Erase
Complete
DQ2
Note: DQ2 toggles only when read at an address within an erase-suspended sector. The sysytem may use #OE or #CE to
toggle DQ2 and DQ6.
9.12 Temporary Sector Unprotect Timing Diagram
#RESET
#CE
#WE
RY/#BY
V _ID
V SS ,_{V ,IL}
or V _IH
TVIDR
T RSP
Program or Erase Command Sequence
TVIDR
V _ID
V SS ,_{V ,IL}
or V _IH
T RRB
9.13 Sector/Sector Block Protect and Unprotect Timing Diagram
V ID
#RESET ^VIH
SA,A6,
A1,A0
DATA
#CE
#WE
Valid*
Sector/sector Block Protect or Unprotect
60h
60h
Valid*
Verify
40h
1 ^μs
Sector/Sector Block Protect:150
μs,
Sector/Sector Block Unprotect:15ms
#OE
*For sector protect,A6=0,A1=1,A0=0.For sector unprotect ,A6=1,A1=1,A0=0
Valid*
Status
- 47 -
Publication Release Date: December 27, 2005
Revision A4