GMS81C50 Datasheet, PDF (22/99 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCONTROLLERS

HYUNDAI
GMS81C50 Series
7.6 AC characteristics (VDD=2.2~4.0V, Vss=0V, Ta=0~70’C)
No.
Parameter
1 External clock input cycle time
Symbol
Pin
tcp
Xin
Specification
Unit
min.
typ.
max.
250
500 1000
ns
2 System clock cycle time
tsys
500 1000 2000
ns
3 External clock pulse width High
tcpH
Xin
40
ns
4 External clock pulse width Low
tcpL
Xin
40
ns
5 External clock rising time
trcp
Xin
40
ns
6 External clock falling time
tfcp
Xin
40
ns
7 interrupt pulse width High
tIH
INT1~ INT2
2
tsys
8 Interrupt pulse width Low
tIL
INT1~ INT2
2
tsys
9 Reset input pulse width low
tRSTL
RESET
8
tsys
10 Event counter input pulse width high tECH
EC
2
tsys
11 Event counter input pulse width low tECL
EC
2
tsys
12 Event counter input pulse rising time trEC
EC
40
ns
13 Event counter input pulse falling time tfEC
EC
40
ns
(Continued)
19