4509 Datasheet, PDF (12/142 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4509 Group
Level
Key-on wakeup input
detection circuit
(Note 3)
Register A ^{IAP2 instruction}
Aj
FR2j
(Note 3)
K2j
Aj
OP2A instruction
D
TQ
Q1
Decoder
Analog input
(Note 3)
Register A
Aj
IAP3 instruction
Aj
OP3A instruction
D
TQ
C1j
Q1
Decoder
Analog input
(Note 3)
PU2j
(Note 1)
P20/AIN0, (Note 2)
P21/AIN1
(Note 1)
(Note 1)
P30/AIN2,(Notes ²⁾
P31/AIN3
(Note 1)
Port block diagram (5)
Notes 1:
This symbol represents a parasitic diode on the port.
2: Applied potential to these ports must be VDD or less.
3: j represents 0 or 1.
Rev.1.02 2006.12.22 page 12 of 140
REJ03B0147-0102