ST7715 View Datasheet(PDF) - Sitronix Technology Co., Ltd.
Part Name
Description
MFG CO.
'ST7715' PDF : 167 Pages View PDF
ST7715
6 Driver IC Pin Description
6.1 Power Supply Pin
Name I/O
Description
VDD
I
Power supply for analog, digital system and booster circuit.
VDDI
I
Power supply for I/O system.
AGND I
System ground for analog system and booster circuit.
DGND I
System ground for I/O system and digital system.
6.2 Interface logic pin
Name I/O
Description
MCU Parallel interface bus and Serial interface select
IM2
I IM2=’1’, Parallel interface
IM2=’0’, Serial interface
- MCU parallel interface type selection
-If not used, please fix this pin at VDDI or DGND level.
IM1 IM0 Parallel interface
IM1,IM0 I
0
0
MCU 8-bit parallel
0
1
MCU 16-bit parallel
1
0
MCU 9-bit parallel
1
1
MCU 18-bit parallel
- SPI4W=’0’, 3-line SPI enable.
SPI4W I - SPI4W=’1’, 4-line SPI enable.
-If not used, please fix this pin at DGND level.
-This signal will reset the device and it must be applied to properly
RESX
I initialize the chip.
-Signal is active low.
CSX
-Chip selection pin
I
-Low enable.
-Display data/command selection pin in MCU interface.
D/CX
(SCL)
-D/CX=’1’: display data or parameter.
I -D/CX=’0’: command data.
-In serial interface, this is used as SCL.
-If not used, please fix this pin at VDDI or DGND level.
RDX
-Read enable in 8080 MCU parallel interface.
I
-If not used, please fix this pin at VDDI or DGND level.
WRX
(D/CX)
-Write enable in MCU parallel interface.
I -In 4-line SPI, this pin is used as D/CX (data/ command selection).
-If not used, please fix this pin at VDDI or DGND level.
D[17:0] I/O -D[17:0] are used as MCU parallel interface data bus.
V1.5
12
Connect pin
VDD
VDDI
GND
GND
Connect pin
DGND/VDDI
DGND/VDDI
DGND/VDDI
MCU
MCU
MCU
MCU
MCU
MCU
2009-12-04
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