4552 Datasheet, PDF (139/145 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4552 Group
BASIC TIMING DIAGRAM
Machine cycle
Mi
Parameter
Pin (signal) name
System clock
STCK
Port D output
Port D input
D0–D7
D0–D5
Ports P0, P1, P2
output
P00–P03
P10–P13
P20–P23
Ports P0, P1, P2 input P00–P03
P10–P13
P20–P23
Interrupt input
INT
Mi+1
Rev.3.02 Dec 22, 2006 page 139 of 142
REJ03B0023-0302