4552 Datasheet, PDF (11/145 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4552 Group
LCD power supply
LCD control
signal
key-on
wakeup
input
K11 Edge detection K10
0
circuit
0
1 ^{Level detection}
1
circuit
K02 ^C2j
IAP1
Register A instruction
Aj
FR02
LCD power
supply
Aj
OP1A instruction
D
TQ
C2j
01
(Note 1)
P10/SEG25, P11/SEG26
(Note 1)
Pull-up transistor
PU1j
LCD power supply
LCD control
signal
key-on
wakeup
input
K13 _{Edge detection} K12
0
circuit
0
Level detection
1
1
circuit
K03 ^C2k
IAP1
Register A instruction
Ak
FR03
LCD power
supply
Ak
OP1A instruction
D
TQ
C2k
01
(Note 1)
P12/SEG27, P13/SEG28
(Note 1)
Pull-up transistor
PU1k
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 (4)
Rev.3.02 Dec 22, 2006 page 11 of 142
REJ03B0023-0302