參數(shù)資料
型號(hào): HD4074654
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機(jī)
文件頁(yè)數(shù): 5/109頁(yè)
文件大小: 430K
代理商: HD4074654
HD404654 Series
5
Block Diagram
R
T
S
O
O
S
V
G
System control
RAM
(512
×
4 bits)
W (2 bits)
X (4 bits)
SPX (4 bits)
Y (4 bits)
SPY (4 bits)
ST
(1 bit)
CA
(1 bit)
A (4 bits)
B (4 bits)
SP (10 bits)
Instruction
decoder
PC (14 bits)
ROM
(4,096
×
10 bits)
(2,048
×
10 bits)
I
I
External
interrupt
Timer
A
Timer
C
Timer
D
SCI1
Compa-
rator
DTMF
D
R
R
R
R
R
R
R
: Data bus
: Signal line
ALU
Source
Sink
High
current
pins
CPU
D
D
D
D
D
D
D
D
D
D
D
D
0
1
2
3
4
5
6
7
8
9
12
13
R0
0
R1
R2
R3
R4
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
RD
0
1
RE
0
0
1
TOC
EVND
TOD
INT
INT
1
1
1
SI
SO
SCK
0
1
VC
ref
COMP
COMP
VT
ref
TONER
TONEC
C
I
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