W19B320ATB Datasheet, PDF (19/53 Pages) Winbond – 4M × 8/2M × 16 BITS 3V FLEXIBLE BANK FLASH MEMORY

W19B320AT/B
7. TABLE OF OPERATION MODES
7.1 Device Bus Operations
MODE
DQ8-DQ15
#CE #OE #WE #RESET #WP/ACC ADDRESSES DQ0-DQ7
#BYTE=VIH #BYTE =VIL
Read
Write
L
L
H
H
L/H
AIN
DOUT
DOUT
DQ8-DQ14
L
H
L
H
(Note2)
AIN
DIN
DIN
=High-Z,
DQ15=A-1
Standby
VDD
±0.3V
X
X VDD ±0.3V
H
X
High-Z
High-Z
High-Z
Output Disable
L
H
H
H
L/H
X
High-Z
High-Z
High-Z
Reset
X
X
X
L
L/H
X
High-Z
High-Z
High-Z
Sector Protect
L
H
L
VID
L/H
SA, A6=L,
A1=H, A0=L
DIN
X
X
Sector Unprotect
L
H
L
VID
(Note2)
SA, A6=H,
A1=H, A0=L
DIN
X
X
Temporary
Sector Unprotect
X
X
X
VID
(Note2)
AIN
DIN
DIN
High-Z
Legend: L = Logic Low = V_IL, H = Logic High = V_IH, V_ID = 8.5 ~ 12.5 V, V_HH = 9.0 ± 0.5 V, X = Don’t Care, SA = Sector
Address, A_IN = Address In, D_IN = Data In, D_OUT = Data Out.
Notes:
1. Addresses are A20:A0 in word mode (#BYTE = V_IH), A20: A-1 in byte mode (#BYTE = V_IL).
2. If #WP/ACC = V_IL, the two outermost boot sectors remain protected. If #WP/ACC = V_IH, the two outermost boot sector
protection depends on whether they were last protected or unprotected using the method described in “Sector/Sector
Block Protection and Unprotect ion”. If #WP/ACC = V_HH, all sectors will be unprotected.
7.2 AUTOSELECT Codes (High Voltage Method)
A20 A11 _A9 A8
A5
DESCRIPTION #CE #OE #WE TO TO
TO A6 TO A3 A2 A1 A0
DQ8 TO
DQ15
A12 A10
A7
A4
#BYTE #BYTE
= VIH = VIL
Manufacturer ID:
Winbond
VIL VIL VIH BA
X
VID
X
VIL
X
X
X VIL VIL DDh
X
DQ7
TO DQ0
DAh
Read Cycle1 VIL VIL VIH BA X VID X VIL X VIL VIL VIL VIH 22h X
7Eh
Read Cycle2 VIL VIL VIH BA X VID X VIL X VIH VIH VIH VIL 22h X
0Ah
Read Cycle3 VIL VIL VIH BA X VID X VIL X VIH VIH VIH VIH 22h
Sector Protection
Verification
VIL
VIL
VIH
SA
X
VID
X
VIL
X
X VIL VIH VIL
X
Security Indicator
Bit (DQ7)
VIL
VIL
VIH
BA
X
VID
X
VIL
X
X VIL VIH VIH
X
X
01h(Top)
00h(Bottom)
01h (protected)
X
00h
(unprotected)
82h
(factory locked)
X
02h
(not factory
locked)
Legend: BA= Bank Address, SA= Sector Address, X= Don't Care.
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Publication Release Date: December 27, 2005
Revision A4