ST7689-G4 View Datasheet(PDF) - Sitronix Technology Co., Ltd.
Part Name
Description
MFG CO.
ST7689-G4
Sitronix Technology Co., Ltd.
'ST7689-G4' PDF : 195 Pages View PDF
ST7689
D15 to D0
SI
SCL
8080-series
Read enable clock input pin
/RD
When /RD is “L”, D0 to D15 are in an output status.
When in the serial interface, connect it to VDDI.
They connect to the standard 8-bit or 16 bit MPU bus via the 8/16 –bit bi-directional bus.
When the following interface is selected and the /CS pin is high, the following pins become high
impedance.
I/O
1. In 8-bit parallel: D15-D8 pins are in the state of high impedance should connect to VDDI.
2. In 3-line/4-line interface D0 pad will be used for SI function
3. In 4-line interface D1 pad will be used for A0 function
4. In Serial interface: no-used pins are in the state of high impedance should connect to VDDI.
SI is used to input serial data when the serial interface is selected.(3 line and 4 line)
I
In ST7689, D0 is the SI when select serial interface. See Table 1.
SCL is used to input serial clock when the serial interface is selected.
I
The data is converted in the rising edge. (3 line and 4 line)
In ST7689, A0 is the SCL when select serial interface. See Table 1.
TE
O
Tearing effect output.
PROM burn-in control pin.
/EXT
When burning PROM, please add an external VSS on /EXT.
I
When ST7689 is normal operation, please let it open.
There is a pull-high resistor between /EXT & VDDI in ST7689.
NOTE：1. In any status the control bus and data bus can’t be floating.
2. The no-used pins should connect to VDDI (Supply Digital Voltage)
Version 1.0
Page 26 of 195
2009/10
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