SC91415CK Datasheet, PDF (18/23 Pages) Silan Microelectronics Joint-stock – TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY

Silan
Semiconductors
TIMING DIAGRAMS (continued)
SC91415 SERIES
HKS
KEY IN
KT
SDO
2
Tdb
sT sT b0 b1 b2 b3 b4 b5 spt spt
Tbit
0101000001
L
M
Note: L=LSB, M=MSB, sT=START bit time, spT=STOP bit time
SDO operating timing
Hi-impedance
HKS
KEY IN
HF HD HF HD
HD
HFO
HDO
XMUTE
SDO
PO
MELODY
HD HF HD HD@
Thdrdb
280ms
@ :It can be triggled by extension telephone set for hold function release
HF and HD operating timing
Hi-impedance
HFI
HF
HKS
KEY
5
0
KT
OSC.
Tdly
"0" digit dialing time
Off-Hook delay time
Hi-impedance
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
2001-11-13
18