UPD78F9177 Datasheet, PDF (37/56 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78F9177, 78F9177Y
AC Timing Measurement Points (excluding the X1 and XT1 inputs)
0.8 VDD
0.2 VDD
Point of
measurement
0.8 VDD
0.2 VDD
Clock Timing
X1 input
1/fX
tXL
tXH
VIH4 (MIN.)
VIL4 (MAX.)
XT1 input
TI Timing
TI80, TI81
1/fXT
tXTL
tXTH
VIH4 (MIN.)
VIL4 (MAX.)
1/fTI
tTIL
t TIH
Data Sheet U14022EJ1V0DS00
37