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MTV312M64 View Datasheet(PDF) - Unspecified

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MTV312M64 Datasheet PDF : 27 Pages
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MYSON
TECHNOLOGY
MTV312M64
(Rev 0.99)
PIN CONFIGURATION
A “CMOS output pin” means it can sink and drive at least 4mA current. It is not recommended to use such
pin as input function.
A “open drain pin” means it can sink at least 4mA current but only drive 10~20uA to VDD. It can be used as
input or output function and needs an external pull up resistor.
A “8051 standard pin” is a pseudo open drain pin. It can sink at least 4mA current when output is at low level,
and drives at least 4mA current for 160nS when output transits from low to high, then keeps driving at 100uA
to maintain the pin at high level. It can be used as input or output function. It needs an external pull up
resistor when driving heavy load device.
Output
Data
2 OSC
period
delay
4mA
10uA
120uA
Pin
4mA
Input
Data
8051 Standard Pin
Output
Data
4mA
Pin
4mA
CMOS Output Pin
No Current
Input
Data
Output
Data
Pin
4mA
Open Drain Pin
POWER CONFIGURATION
The MTV312M can work on 5V or 3.3V power supply system.
In 5V power system, the VDD pin is connected to 5V power and the VDD3 needs an external capacitor, all
output pins can swing from 0~5V, input pins can accept 0~5V input range. And ADC conversion range is 5V.
However, X1 and X2 pins must be kept below 3.3V.
In 3.3V power system, the VDD and VDD3 are connected to 3.3V power, all output pins swing from 0~3.3V,
HSYNC, VSYNC and open drain pin can accept 0~5V input range, other pins must be kept below 3.3V. And
the ADC conversion range is 3.3V.
5V
10u
VDD
VDD3
MTV312M in
5V System
3.3V
VDD
VDD3
MTV312M in
3.3V System
Revision 0.99
- 3-
2001/07/26
 

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