4552 Datasheet, PDF (12/145 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4552 Group
LCD power supply
LCD control
signal
(Note 3)
Register A
(Note 3)
L3j
IAP2
instruction
LCD power
supply
Aj
FR22
(Note 3)
L3j
01
(Note 1)
P20/SEG17, P21/SEG18
(Note 1)
(Note 2)
Aj
OP2A instruction
D
TQ
LCD power supply
LCD control
signal
(Note 4)
Register A
(Note 4)
L3k
IAP2
instruction
LCD power
supply
Ak
FR23
(Note 4)
L3k
01
(Note 1)
P22/SEG19, P23/SEG20
(Note 1)
(Note 2)
Ak
OP2A instruction
D
TQ
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 bits 0 and 1.
4: k represents bits 2 and 3.
Port block diagram (5)
Rev.3.02 Dec 22, 2006 page 12 of 142
REJ03B0023-0302