參數(shù)資料
型號: HD404654
廠商: Hitachi,Ltd.
英文描述: RESISTOR, 0.10 OHM 5W
中文描述: 4位單片機(jī)
文件頁數(shù): 4/109頁
文件大?。?/td> 430K
代理商: HD404654
HD404654 Series
4
Pin Description
Pin Number
Item
Symbol
DP-42S
FP-44A
I/O
Function
Power supply
V
CC
GND
TEST
42
38
Applies power voltage
11
6
Connected to ground
Test
7
2
I
Used for factory testing only: Connect this pin to
V
CC
Resets the MCU
Reset
RESET
10
5
I
Oscillator
OSC
1
OSC
2
D
0
–D
9
8
3
I
9
4
O
Port
12–21
7–16
I/O
Input/output pins addressed by individual bits;
pins D
–D
are high-current sink pins that can
each supply up to 15 mA, D
– D
are large-
current source pins that can each supply up to 10
mA
D
12
, D
13
R0
0
–R4
3
22, 23
17, 18
I
Input pins addressable by individual bits
24–40
19–21,
23–36
I/O
Input/output pins addressable in 4-bit units
RD
0
, RD
1
, RE
0
1, 2, 6
INT
0
,
INT
1
STOPC
39, 40,1
I
Input pins addressable in 4-bit units
Interrupt
23, 24
18, 19
I
Input pins for external interrupts
Stop clear
22
17
I
Input pin for transition from stop mode to active
mode
Serial
SCK
1
SI
1
SO
1
TOC, TOD
38
34
I/O
Serial clock input/output pin
39
35
I
Serial receive data input pin
40
36
O
Serial transmit data output pin
Timer
34, 35
30, 31
O
Timer output pins
EVND
37
33
I
Event count input pins
DTMF
TONER
4
42
O
Output pin for DTMF row signals
TONEC
3
41
O
Output pin for DTMF column signals.
VT
ref
5
43
Reference voltage pin for DTMF signals
Voltage condition is V
CC
VT
ref
GND.
Analog input pins for voltage comparator
Comparator
COMP
0
,
COMP
1
VC
ref
1, 2
39, 40
I
6
1
Reference voltage pin for inputting the threshold
voltage of the analog input pin.
Division rate
SEL
41
37
I
Input pin for selecting system clock division rate
rate after
RESET
input or after stop mode
cancellation.
1/4 division rate: Connect it to V
1/32 division rate: Connect it to GND
相關(guān)PDF資料
PDF描述
HD404654H 4-Bit Single-Chip Microcomputer
HD404654S 4-Bit Single-Chip Microcomputer
HD4074654 4-Bit Single-Chip Microcomputer
HD4074654H 4-Bit Single-Chip Microcomputer
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