EM78815
8-Bit Microcontroller
TONE
EST
TONE
Tdp
5~20mS
by S/W
Tgta
30mS Typ.
Tgtp
30mS Typ.
Vtst
ST/GT
Q4..Q1
1/2 VDD
Tpq
8 uS Typ.
STD
LINE_ENG
Fig. 33 DTMF Receiver Timing Diagram
VDD
OSC
Toscs
Power
on reset
Trst
/RESET
Tdrs
Tdrs
Program
Active
Fig. 34 Relationship between OSC Stable And Reset Time
Product Specification (V2.4) 08.01.2004
(This specification is subject to change without further notice)
73