參數(shù)資料
型號(hào)： M37531
廠商： Mitsubishi Electric Corporation
英文描述： Single Chip 8 Bits CMOS Microcomputer(8位單片機(jī))
中文描述： 單芯片的CMOS 8位單片機(jī)（8位單片機(jī)）
文件頁(yè)數(shù)： 7/64頁(yè)
文件大?。?/td> 631K
代理商： M37531
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7531 Group
MITSUBISHI MICROCOMPUTERS
7
PIN DESCRIPTION
Table 1 Pin description
Pin
Vcc, Vss
V
REF
Function
Apply voltage of 2.2–5.5 V to Vcc, and 0 V to Vss.
Reference voltage input pin for A-D converter
Chip operating mode control pin, which is always connected to Vss.
Reset input pin for active “L”
Input and output pins for main clock generating circuit
Connect a ceramic resonator or quartz crystal oscillator between the X
IN
and X
OUT
pins.
For using RC oscillator, short between the X
IN
and X
OUT
pins, and connect the capacitor and resistor.
If an external clock is used, connect the clock source to the X
IN
pin and leave the X
OUT
pin open.
Function expect a port function
Name
Power source (Note 1)
Analog reference
voltage
CNVss
Reset input
Clock input
CNVss
RESET
X
IN
P0
0
–P0
7
P1
0
/RxD
P1
1
/TxD
P1
2
/S
CLK
P1
3
/S
DATA
P1
4
/CNTR
0
P2
0
/AN
0
–
P2
7
/AN
7
P3
0
–P3
5
P3
6
/INT
1
P3
7
/INT
0
Notes 1: V
CC
= 2.4 to 5.5 V for the extended operating temperature version (–40 to 85 °C) and the extended operating temperature 125 °C
version (–40 to 125 °C).
2: 6-bit I/O port (P2
0
–P2
5
) for the 32-pin version.
3: 6-bit I/O port (P3
0
–P3
4
, P3
7
/INT
0
) for the 32-pin version.
I/O port P0
I/O port P1
I/O port P2 (Note 2)
I/O port P3 (Note 3)
8-bit I/O port.
I/O direction register allows each pin to be individually pro-
grammed as either input or output.
CMOS compatible input level
CMOS 3-state output structure
Whether a built-in pull-up resistor is to be used or not can be
determined by program.
5-bit I/O port
I/O direction register allows each pin to be individually pro-
grammed as either input or output.
CMOS compatible input level
CMOS 3-state output structure
CMOS/TTL level can be switched for P1
0,
P1
2
and P1
3
8-bit I/O port having almost the same function as P0
CMOS compatible input level
CMOS 3-state output structure
8-bit I/O port
I/O direction register allows each pin to be individually programmed as either input or output.
CMOS compatible input level (CMOS/TTL level can be switched for P3
6
and P3
7
).
CMOS 3-state output structure
P3
0
to P3
6
can output a large current for driving LED.
Whether a built-in pull-up resistor is to be used or not can be
determined by program.
Key-input (key-on wake up
interrupt input) pins
Serial I/O1 function pin
Serial I/O2 function pin
Timer X function pin
Input pins for A-D converter
Interrupt input pins
X
OUT
Clock output
相關(guān)PDF資料
PDF描述
M37534 Single Chip 8 Bits CMOS Microcomputer(8位單片機(jī))
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M37733MHB Single Chip 16 Bits CMOS Microcomputer(16位單片機(jī))
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