4524_M Datasheet, PDF (29/310 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 720 FAMILY / 4500 SERIES

4524 Group
HARDWARE
PORT BLOCK DIAGRAM
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 Aug, 06 2004
REJ09B0107-0200Z
1-16