Sharp MMD24S 用户手册

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页码 38
20
MMD24S
MMD24B
 
 - 3 
AN5- AN3 
IN 
Terminal to change cooking input according to the Model.
 
 
 
 
By using A/D converter contained in the LSI, DC voltage in accordance with the Model 
in operation is applied to set up its cooking constant.
 
AN2 
IN 
Input signal which inform the drawer door is in the middle position between the opened 
position and the closed position, to LSI from the door position switch rear.
 
AN 
IN 
Terminal not used. 
 
AN0 
IN 
Terminal not used. 
 
CNVSS 
IN 
Power source voltage: 0V (GND).
 
 
 
 
VC voltage of power source circuit input. Connected GND.
 
RESET 
IN 
Auto clear terminal.
 
 
 
 
Signal is input to reset the LSI to the initial state when power is applied. Temporarily set 
to “L” level the moment power is applied, at this time the LSI is reset. Thereafter set at 
“H” level.
 
P62 
OUT 
Terminal not used. 
 
P6 
IN/OUT  Terminal not used. 
 
 
VSS 
IN 
Power source voltage: 0V (GND).
 
 
 
 
VS voltage of power source circuit input. Connected GND.
 
XIN 
IN 
Internal clock oscillation frequency setting input.
 
 
 
 
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with 
respect to Xout terminal.
 
XOUT 
OUT 
Internal clock oscillation frequency control output.
 
 
 
 
Output to control oscillation input of Xin.
 
VCC 
IN 
Power source voltage: +5V.
 
 
 
 
VC voltage of power source circuit input. 
 
P60 
IN 
Plus signal coming from the Microwave drawer door open-close motor is input into P60 
as revolution number.
 
P37 
IN 
Input signal which communicates the drawer door open information to LSI from 
the door position switch front.
 
 
 
 
Door opened; “L” level signal(0V).
 
 
 
 
Door closed; “H” level signal(+5V).
 
P36 
OUT 
Signal to change the rotational direction is output to the Microwave drawer door 
open-close motor.
 
TXOUT 
OUT 
Signal to change the rotational speed is output to the Microwave drawer door open-close 
motor.
 
P34  
OUT 
Power source to drive the Microwave drawer door open-close motor is output.
 
20 
RXD2 
IN 
Input terminal to check the data of display.
 
 
 
 
Data signal from IC-2 is input to RXD2 to check the flow of the data.
 
TXD2 
IN 
Output terminal to send IC-2 the data.
 
 
 
 
The data of display is output to IC-2.
 
22 
SCLK2 
OUT 
Clock timing signaI output terminal.
 
 
 
 
Clock timing signal is sent to IC-2.
 
23 
P30 
OUT 
Signal to reset LSI.
 
 
 
 
Signal is output to reset IC-2.
  24 - 25 
COM3 - COM2
  OUT 
Terminal not used.
 
26 
COM 
OUT 
Common data signal.
 
 
 
 
Connected to LCD signal C5.
DESCRIPTION OF LSI (IC-1)
The I/O signal of the LSIis detailed in the following table.
  Pin No. 
Signal 
I/O 
Description