W91350N Datasheet, PDF (4/16 Pages) Winbond – 13-MEMORY TONE/PULSE DIALER WITH HANDFREE AND HOLD FUNCTION

W91350N SERIES
BLOCK DIAGRAM
XT XT
SYSTEM CLOCK
GENERATOR
HKS
HFI
ROW
(R1 to R4, Vx)
COLUMN
(C1 to C4)
KEYBOARD
INTERFACE
DTMF
D/A
CONVERTER
READ / WRITE
COUNTER
CONTROL
LOGIC
LOCATION
LATCH
RAM
PULSE
CONTROL
LOGIC
ROW & COLUMN
PROGRAMMABLE
COUNTER
DATA LATCH
& DECODER
MODE
H/P MUTE
T/P MUTE
DP/C5
HFO
FUNCTIONAL DESCRIPTION
Keyboard Operation
C1 C2
12
45
78
∗/T 0
F1 F2
C3 C4 _{DP / C5}
3 S M1 R1
6 F4 M2 R2
9 A M3 R3
# R/P SAVE R4
F3 H
VX
• S: Store function key
• H: Hold function key
• A: Indirect repertory memory dialing function key
• R/P: Redial and pause function key
• SAVE: Save function key
• ∗/T: ∗ in tone mode and P→T in pulse mode
• M1, ..., M3: One-touch memory
• F1, ..., F4: Flash keys, F1 = 600 mS, F2 = 300 mS, F3 = 73 mS, F4 = 100 mS
Notes:
D1, ..., Dn, D1', ..., Dn': 0, ..., 9, */T, #
Mn: M1 , ..., M3 ; Ln: 0, ..., 9; Fn: F1, ..., F4
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