W91F810N Datasheet, PDF (6/26 Pages) Winbond – 23-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

W91F810N SERIES
BLOCK DIAGRAM
HKS
HFI
XT XT
SYSTEM CLOCK
GENERATOR
ROW
(R1 ~ R7)
COLUMN
(C1 ~ C6)
KEYBOARD
INTERFACE
DTMF
D/A
CONVERTER
READ/WRITE
COUNTER
CONTROL
LOGIC
LOCATION
LATCH
RAM
PULSE
CONTROL
LOGIC
ROW & COLUMN
PROGRAMMABLE
COUNTER
DATA LATCH
& DECODER
LOCK
MODE
T/P MUTE
KT
DP
HFO
H/P MUTE
K MUTE
V1
V2
FUNCTIONAL DESCRIPTION
Keyboard Operation
C1 C2 C3 C4 C5
1
2
3
S M0
4
5
6
F4 M1
7
8
9 Page M2
*/T 0
# R/P M3
F1 F2 F3 H M4
M5 M6 M7 M8 M9
VSS
EM1
EM2
EM3
SAVE
MUTE
R1
R2
R3
R4
VX/R5
R6
C1 C2 C3 C4 C5 C6
VSS
1
2
3
S M0 M10 EM1 R1
4
5
6
F4 M1 M11 EM2 R2
7
8
9 Page M2 M12 EM3 R3
*/T 0
# R/P M3 M13 SAVE R4
F1 F2 F3 H M4 M14
Vx/R5
M5 M6 M7 M8 M9
R MUTE R6
M15 M16 M17 M18 M19 Vup Vdown R7
• S: Store function key
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