CXP842P24 Datasheet, PDF (18/20 Pages) Sony Corporation – CMOS 8-bit Single Chip Microcomputer

CXP842P24
(4) Interruption, reset input (Ta = –10 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V reference)
Item
External interruption
High and Low level widths
Reset input Low level width
Symbol Pin
INT0
tIH
tIL
INT1
INT2
INT3
NMI
tRSL
RST
Condition Min. Max. Unit
1
µs
32/fc
µs
tIH
tIL
INT0
INT1
INT2
INT3
NMI
(NMI specifies only for
the falling edge.)
0.8VDD
tIL
0.2VDD
tIH
Fig 7. Interruption input timing
tRSL
RST
0.2VDD
Fig. 8. RST input timing
(5) Power-on reset
Item
Power supply rising time
Power supply cut-off time
(Ta = –10 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V reference)
Symbol Pin
tR
tOFF
VDD
Condition
Power-on reset
Repetitive power-on reset
Min. Max. Unit
0.05 50 ms
1
ms
VDD
4.5V
0.2V
0.2V
tR
tOFF
The power supply shoule rise smoothly.
Fig. 9. Power-on reset
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