LC87F7NC8A Datasheet, PDF (27/28 Pages) ON Semiconductor – 8-bit Microcontroller

LC87F7NC8A
RES
VDD
RRES
CRES
Note :
Determine the value of CRES and RRES so that the reset signal
is present for a period of 200s after the supply voltage goes
beyond the lower limit of the IC's operating voltage.
Figure 5 Reset Circuit
SIOCLK:
DATAIN:
DATAOUT:
SIOCLK:
DATAIN:
DATAOUT:
SIOCLK:
DATAIN:
DATAOUT:
DI0 DI1
DI2
DI3
DI4
DI5
DI6
DI7
DI8
DO0 DO1 DO2 DO3 DO4 DO5 DO6
tSCKL
tSCK
tSCKH
DO7
Data RAM
transfer period
(SIO0 only)
DO8
tsDI
thDI
tdDO
tSCKL
tsDI
tdDO
Data RAM
transfer period
(SIO0 only)
tSCKHA
thDI
Figure 6 Serial I/O Waveforms
tPIL
tPIH
Figure 7 Pulse Input Timing Signal Waveform
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