EM91220 データシートの表示（PDF） - ELAN Microelectronics
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EM91220 Datasheet PDF : 20 Pages
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EM91220 SERIES
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
HKS
KEY IN
KT
SDO
2
Tdb
sT sT b0 b1 b2 b3 b4 b5 spT spT
Tbit
0 1 0 1 0 0 00 0 1
L
M
<Note>L=LSB,M=MSB, sT=START bit time, spT=STOP bit time
Figure 8. SDO operating timing
Hi-impedance
HKS
KEY IN
XMUTE
HFO
PM
SDO
PO
DTMF
HF HF
HF
HF
HF
HF
HF
Figure 9. HF operating timing
Hi-impedance
* This specification are subject to be changed without notice.
10.1.1997 14
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