ST7577 Sitronix Technology, ST7577 Datasheet - Page 10

• Manufacturer Part Number: ST7577
• Description: Dot Matrix LCD Controller/Driver
• Manufacturer: Sitronix Technology

ST7577
Ver 1.0a
LCD DRIVER CLOCK SUPPLY
POWER SUPPLY PIN
XV0I, XV0O,XV0S
VGI, VGO, VGS
V0I, V0O, V0S
OSC
VRS
V
V
V
VM
DD2
SS
DD
Power
Power
Power
Power
Power
Power
Power
Power
I
When the on-chip oscillator is used, this input must be connected to
V
oscillator and external clock are both inhibited by connecting the OSC pin
to V
avoid this, the chip should always be put into Power Down Mode before
stopping the clock.
Ground.
Digital Supply voltage.
The 2 supply rails, V
power).
If a Digital Option pin is high, must be this level.
Analog Supply voltage.
The 2 supply rails, V
power).
Reference voltage. Must be left open.
Positive LCD driving voltage for commons.
V0I is the V0 power source for the LCD driver. If using external V0, apply
the external power source on these pads.
V0O is the internal V0 regulator output pad.
V0S is the feedback for the internal V0 voltage compensation circuit.
They should be separate in ITO and be connected together by FPC.
Negative LCD driving voltage for commons.
XV0I is the XV0 power source for the LCD driver. If using external XV0,
apply the external power source on these pads.
XV0O is the internal XV0 regulator output pad.
XV0S is the feedback for the internal XV0 voltage compensation circuit.
They should be separate in ITO and be connected together by FPC.
LCD driving voltage for segments.
VGI is the VG power source for the LCD driver. If using external VG, apply
external power source on these pads.
VGO is the internal VG regulator output pad.
VGS is the feedback for the internal VG voltage compensation circuit.
They should be separate in ITO and be connected together by FPC.
LCD driving voltage for commons.
DD
. An external clock signal, if used, is connected to this pin. The
SS
and the display is not clocked and may be left in a DC state. To
DD
DD
10/48
and V
and V
DD2
DD2
, could be connected together (for single
, could be connected together (for single
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2008/02/14
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