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參數(shù)資料
| 型號： | M38C2XMX |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機 |
| 文件頁數(shù)： | 3/63頁 |
| 文件大?。?/td> | 1000K |
| 代理商： | M38C2XMX |
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3
38C2 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Apply voltage of 1.8 V to 5.5 V to V
CC
, and 0 V to V
SS
.
Reference voltage input pin for A-D converter.
GND input pin for A-D converter. Connect to V
SS
.
Reset input pin for active
“
L.
”
Input and output pins for the main clock generating circuit.
Feedback resistor is built in between X
IN
pin and X
OUT
pin.
Connect a ceramic resonator or a quartz-crystal oscillator between the X
IN
and X
OUT
pins to
set the oscillation frequency. When an external clock is used, connect the clock source to X
IN
,
and leave X
OUT
pin open.
Input 0
≤
V
L1
≤
V
L2
≤
V
L3
≤
V
CC
voltage.
Input 0
–
V
L3
voltage to LCD.
LCD common output pins.
COM
2
and COM
3
are not used at 1/2 duty ratio.
COM
3
is not used at 1/3 duty ratio.
8-bit I/O port.
CMOS compatible input level.
CMOS 3-state output structure.
I/O direction register allows each port to be individually
programmed as either input or output.
Pull-up control is enabled.
V
CC
, V
SS
V
REF
AV
SS
RESET
X
IN
V
L3
COM
0
–
COM
3
P0
0
/SEG
0
–
P0
3
/SEG
3
P0
4
/SEG
4
–
P0
7
/SEG
7
P1
0
/SEG
8
–
P1
7
/SEG
15
P2
0
/SEG
16
–
P2
5
/SEG
21
P2
6
/SEG
22
/V
L1
P2
7
/SEG
23
/V
L2
P3
0
/S
RDY2
P3
1
/S
CLK2
P3
2
/TxD
2
P3
3
/RxD
2
P3
4
/INT
2
P3
5
/T
XOUT
P3
6
/T
2OUT
/
φ
P3
7
/CNTR
0
P4
0
/O
OUT0
/AN
0
P4
1
/O
OUT1
/AN
1
P4
2
/AN
2
–
P4
5
/AN
5
P4
6
/RTP
0
/AN
6
P4
7
/RTP
1
/AN
7
P5
0
/INT
0
P5
1
/INT
1
P5
2
/T
3OUT
/PWM
0
P5
3
/T
4OUT
/PWM
1
P5
4
/RxD
1
P5
5
/TxD
1
P5
6
/S
CLK1
P5
7
/S
RDY1
Power source
Analog reference
voltage
Analog power source
Reset input
Clock input
LCD power
source
Common output
I/O port P0
I/O port P1
I/O port P2
I/O port P3
I/O port P4
I/O port P5
Function except a port function
PIN DESCRIPTION
Table 1 Pin description (1)
Function
Pin
Name
LCD segment
output pins
Serial I/O2 function pins
External interrupt pin
Timer X, Timer 2 output pins
Timer X function pin
AD converter input
pins
External interrupt pins
Timer 3, Timer 4 output pins
PWM output pins
Serial I/O1 function pins
Key input interrupt input pins
Key input interrupt
pins
LCD power source
input pins
Oscillation external
output pins
Real time port
function pins
X
OUT
Clock output
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