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參數(shù)資料
| 型號： | M37534E4FP |
| 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)： | 7/55頁 |
| 文件大?。?/td> | 610K |
| 代理商： | M37534E4FP |
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7534 Group
Rev.2.00 Jun 21, 2004 page 7 of 54
REJ03B0099-0200Z
PIN DESCRIPTION
Table 1 Pin description
Pin
Vcc, Vss
V
REF
USBV
REFOUT
CNVss
RESET
X
IN
P0
0
–P0
7
P1
0
/RxD/D-
P1
1
/TxD/D+
P1
2
/S
CLK
P1
3
/S
DATA
P1
4
/CNTR
0
P1
5
, P1
6
P2
0
/AN
0
–
P2
7
/AN
7
P3
0
–P3
5
P3
6
/INT
1
P3
7
/INT
0
P4
0
, P4
1
X
OUT
Function
Apply voltage of 4.1 to 5.5 V (4.4 to 5.25 V at USB operating) to Vcc, and 0 V to Vss.
Reference voltage input pin for A/D converter
Output pin for pulling up a D- line with 1.5 k
external resistor
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.
If an external clock is used, connect the clock source to the X
IN
pin and leave the X
OUT
pin open.
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.
7-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
, P1
3
.
When using the USB function, input level of ports P1
0
and
P1
1
becomes USB input level, and output level of them
becomes USB output level.
8-bit I/O port having almost the same function as P0
CMOS compatible input level
CMOS 3-state output structure
Function expect a port function
Name
Power source
Analog reference
voltage
USB reference
voltage output
CNVss
Reset input
Clock input
Clock output
I/O port P0
I/O port P1
I/O port P2
I/O port P3
I/O port P4
Whether a built-in pull-up resistor is to be used or not can be
determined by program.
2-bit I/O port
I/O direction register allows each pin to be individually programmed as either input or output.
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
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
, P3
7
).
CMOS 3-state output structure
P3
0
to P3
6
can output a large current for driving LED.
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