參數(shù)資料
型號(hào): HD40L4818
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
中文描述: 4位單片機(jī)(4位單片微計(jì)算機(jī))
文件頁(yè)數(shù): 9/98頁(yè)
文件大?。?/td> 621K
代理商: HD40L4818
HD404818 Series
9
Block Diagram
I
System control circuit
RAM
(1,184 4 bits)
W (2 bits)
X (4 bits)
SPX (4 bits)
Y (4 bits)
SPY (4 bits)
CA
(1 bit)
ST
(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
ALU
CPU
INT
0
INT
1
Timer B
Timer C
TIMO
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
8
D
9
D
10
D
11
D
12
D
13
R
R0
0
R0
1
R0
2
R0
3
R
R1
0
R1
1
R1
2
R1
3
R
R2
0
R2
1
R2
2
R2
3
R
R3
0
R3
1
R3
2
R3
3
R
T
O
O
X
X
V
C
G
Timer A
External
interrupt
control
circuit
I
I
High-
current
pins
LCD
driver
circuit
V
1
V
2
V
3
COM1
COM2
COM3
COM4
SEG1
SEG2
SEG3
SEG31
SEG32
VC
ref
COMP
0
COMP
1
Compa-
rator
Serial
interface
SI
SO
SCK
: Data bus
: Signal lines
1
2
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