4524 Datasheet, PDF (15/161 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4524 Group
LCD power supply
(VLC3/VDD)
LCD power supply
(VLC2)
L11
LCD power supply
(VLC1)
LCD power supply
LCD control
signal
VDD
L23
LCD power
supply
LCD power supply
LCD control
signal
L22
LCD power
supply
LCD control
signal
LCD power
supply
L21
LCD power
supply
Connecting to •
when SEG is selected.
(Note 1)
VLC3/SEG0
(Notes 2 and 3)
Connecting to •
when SEG is selected.
(Note 1)
VLC2/SEG1
(Note 2)
Connecting to •
when SEG is selected.
(Note 1)
VLC1/SEG2
(Note 2)
Reset signal
L12
EPOF+POF2 instruction
(Continuous execution)
L13
L20
Notes 1:
This symbol represents a parasitic diode on the port.
2: Applied potential when VLC is selected must be as follows;
• VDD ≥ VLC3 ≥ VLC2 ≥ VLC1
3: VLC3 = VDD when SEG is selected.
Port block diagram (7)
Rev.2.00 Jul 27, 2004 page 15 of 159
REJ03B0091-0200Z