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參數(shù)資料
| 型號： | M37373M8-XXXSP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP52 |
| 封裝： | 0.600 INCH, 1.778 MM PITCH, SHRINK, PLASTIC, DIP-52 |
| 文件頁數(shù)： | 67/110頁 |
| 文件大?。?/td> | 1537K |
| 代理商： | M37373M8-XXXSP |
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6
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37273M8-XXXSP
M37273E8SP
Pin
Functions
Input/
Output
PIN DESCRIPTION
Name
Apply voltage of 5 V ± 10 % (typical) to VCC and AVCC, and 0 V to VSS.
Connected to VSS.
To enter the reset state, the reset input pin must be kept at a “L” for 2
ms or more (under
normal VCC conditions)
If more time is needed for the quartz-crystal oscillator to stabilize, this “L” condition should
be maintained for the required time.
This chip has an internal clock generating circuit. To control generating frequency, an ex-
ternal ceramic resonator or a quartz-crystal oscillator is connected between pins XIN and
XOUT. If an external clock is used, the clock source should be connected to the XIN pin and
the XOUT pin should be left open.
Port P0 is an 8-bit I/O port with direction register allowing each I/O bit to be individually
programmed as input or output. At reset, this port is set to input mode. The output structure
is N-channel open-drain output. See note 1 at end of Table for full details of port P0 func-
tions.
Pins P00–P05 are also used as PWM output pins PWM0–PWM5 respectively. The output
structure is N-channel open-drain output.
Pins P06 , P07 are also used as external interrupt input pins INT2, INT1 respectively.
P06 pin is also used as analog input pin AD4.
Port P1 is an 8-bit I/O port and has basically the same functions as port P0. The output
structure is CMOS output.
P10 pin is also used as OSD output pin OUT2. The output structure is CMOS output.
Pins P11–P14 are used as SCL1, SCL2, SDA1 and SDA2 respectively, when multi-master
I2C-BUS interface is used. The output structure is N-channel open-drain output.
Pins P15–P17 are also used as analog input pins AD1 to AD3 respectively.
P15 pin is also used as external interrupt input pin INT3.
Port P2 is an 8-bit I/O port and has basically the same functions as port P0. The output
structure is CMOS output.
P20 pin is also used as serial I/O synchronous clock input/output pin SCLK. When using
serial I/O, the output structure is N-channel open-drain output.
P22 pin is also used as serial I/O data input pin SIN.
P21 pin is also used as serial I/O data output pin SOUT. When using serial I/O, the output
structure is N-channel open-drain output.
Pins P23, P24 are also used as external clock input pins TIM3, TIM2 respectively.
P26 pin is also used as OSD clock input pin OSC1. (See note 2)
P27 pin is also used as OSD clock output pin OSC2. The output structure is CMOS output.
(See note 2)
P26 pin is also used as sub-clock input pin XCIN.
P27 pin is also used as sub-clock output pin XCOUT.
Ports P30, P31 are 2-bit I/O ports and have basically the same functions as port P0. Either
CMOS output or N-channel open-drain output structure can be selected. (See note 3)
Pins P30, P31 are also used as analog input pins AD5, AD6 respectively.
Input
Output
I/O
Output
Input
I/O
Output
I/O
Input
I/O
Input
Output
Input
Output
Input
Output
I/O
Input
Power source
CNVSS
Reset input
Clock input
Clock output
I/O port P0
PWM output
External interrupt
input
Analog input
I/O port P1
OSD output
Multi-master
I2C-BUS interface
Analog input
External interrupt
input
I/O port P2
Serial I/O synchro-
nous clock input/
output
Serial I/O data input
Serial I/O data
output
External clock input
Clock input for
OSD
Clock output for
OSD
Sub-clock input
Sub-clock output
I/O port P3
Analog input
VCC, AVCC
VSS
CNVSS
______
RESET
XIN
XOUT
P00/PWM0–
P05/PWM5,
P06/INT2/
AD4,
P07/INT1
P10/OUT2,
P11/SCL1,
P12/SCL2,
P13/SDA1,
P14/SDA2,
P15/AD1/
INT3,
P16/AD2,
P17/AD3
P20/SCLK,
P21/SOUT,
P22/SIN,
P23/TIM3,
P24/TIM2,
P25,
P26/OSC1/
XCIN,
P27/OSC2/
XCOUT
P30/AD5,
P31/AD6
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