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Part Name
Description
HD407L4818FS View Datasheet(PDF) - Renesas Electronics
Part Name
Description
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HD407L4818FS
4-Bit Single-Chip Microcomputer
Renesas Electronics
HD407L4818FS Datasheet PDF : 100 Pages
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Block Diagram
HD404818 Series
INT
0
INT
1
External
interrupt
control
circuit
Timer A
Timer B
TIMO
Timer C
SI
SO
SCK
Serial
interface
VC
ref
COMP
0
COMP
1
Compa-
rator
V
1
V
2
V
3
COM1
COM2
COM3
COM4
SEG1
SEG2
SEG3
SEG31
SEG32
LCD
driver
circuit
System control circuit
RAM
(1,184
×
4 bits)
W (2 bits)
X (4 bits)
SPX (4 bits)
Y (4 bits)
SPY (4 bits)
ALU
CPU
ST CA
(1 bit) (1 bit)
A (4 bits)
B (4 bits)
SP (10 bits)
Instruction
decoder
PC (14 bits)
ROM
(2,048
×
10 bits)
(4,096
×
10 bits)
(6,144
×
10 bits)
(8,192
×
10 bits)
D
0
D
1
D
2
D
3
D
4
D
5
D
6
High-
current
pins
D
7
D
8
D
9
D
10
D
11
D
12
D
13
R0
0
R0
1
R0
2
R0
3
R1
0
R1
1
R1
2
R1
3
R2
0
R2
1
R2
2
R2
3
R3
0
R3
1
R3
2
R3
3
: Data bus
: Signal lines
9
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