Hitachi H*/3694F-ZTAT User Manual
Rev. 1.0, 07/01, page 317 of 372
t
Scyc
t
TXD
t
RXS
t
RXH
V
OH
V or V
IH OH
V or V
IL OL
*
*
*
V
OL
*
SCK3
TXD
(transmit data)
(transmit data)
RXD
(receive data)
(receive data)
Note:
*
Output timing reference levels
Output high:
Output low:
Load conditions are shown in figure 20-7.
V = 2.0 V
V = 0.8 V
OH
OL
Figure 20-6 SCI Synchronous Mode Input/Output Timing
20.5
Output Load Circuit
V
CC
2.4 k
Ω
12 k
Ω
30 pF
LSI output pin
Figure 20-7 Output Load Condition