LC87F2W48A Datasheet, PDF (25/26 Pages) Sanyo Semicon Device – 50K-byte FROM and 1536-byte RAM integrated 8-bit 1-chip Microcontroller

LC87F2W48A
VDD
RRES
Note:
Determine the value of CRES and RRES so
that the reset signal is present for a period of
RES
200μs after the supply voltage goes beyond
CRES
the lower limit of the IC’s operating voltage.
SIOCLK:
DATAIN:
DATAOUT:
SIOCLK:
DATAIN:
DATAOUT:
SIOCLK:
DATAIN:
DATAOUT:
Figure 5 Reset Circuit
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 Input/Output Wave Forms
tPIL
tPIH
Figure 7 Pulse Input Timing Signal Waveform
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