EM91401CP

Manufacturer Part NumberEM91401CP
DescriptionTone/pulse switchable dialer with LCD interface and dual tone melody generator
ManufacturerELAN Microelectronics Corp
EM91401CP datasheet
 


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Page 15/23:

Pause key operating timing

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HKS
2
KEY IN
KT
XMUTE
HDO
SDO
PO
Tidp
DTMF
OSC.
HKS
2
KEY IN
KT
XMUTE
HDO
SDO
PO
DTMF
OSC.
Figure 6. Pulse to Tone (P T) operating timing
HKS
KEY IN
Tdb
KT
XMUTE
HDO
SDO
PO
DTMF
OSC.
* This specification are subject to be changed without notice.
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
RD/P
3
Tp
Tidp
Figure 5. Pause key operating timing
*/T
3
Tpt
F
Tfp=300ms
Tf
Figure 7. Flash key operating timing
EM91401 SERIES
AND DUAL-TONE MELODY GENERATOR
Hi-impedance
4
Hi-impedance
Hi-impedance
10.1.1997
15