HD404629R Datasheet, PDF (152/157 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a DTMF Generator Circuit

HD404629R Series
R _L = 100 k Ω
TONEC
R _L = 100 k Ω
TONER
GND
Figure 111 Tone Output Load Circuit
R _L = 100 k Ω
TONEC
TONER
GND
Figure 112 Distortion and dB_CR Load Circuit
OSC₁
V_CC – 0.3 V
0.3 V
t_CPr
1/f_CP
t_CPH
t_CPL
t_CPf
Figure 113 External Clock Timing
INT₀ to INT₄,
EVNB, EVND
0.9V_CC
0.1V_CC
t_IH
t_IL
Figure 114 Interrupt Timing
150