Sharp MD-MT180 Service Manual page 53

IC202 RH-iX2824AFZZ: 16M Bit D-RAM (IX2824AF)
Terminal Name
Pin No.
1 Vcc
2 I/O1
3 I/O2
4 WE
5 RAS
6* NC
7 A10
8-11 A0-A3
12 Vcc
13 GND
14-19 A4-A9
20 OE
21 CAS
22 I/O3
23 I/O4
24 GND
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.
Power supply (2.6V)
Data input/data output
Data input/data output
Write enable
Low address strobe
Not connected
Address input
Address input
Power supply (2.6V)
Ground (0V)
Address input
Output enable
Column address strobe
Data input/data output
Data input/data output
Ground (0V)
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Function
MD-MT180