hd66789 Renesas Electronics Corporation., hd66789 Datasheet - Page 13

• Manufacturer Part Number: hd66789
• Description: 528-channel, One-chip Driver For Amorphous Tft Panels With 262,144-color Display Ram, Power Supply Circuit, And Gate Circuit
• Manufacturer: Renesas Electronics Corporation.

Signals
V0P, V31P
V0N, V31N
VGS
VTESTS
TS0~TS7
TESTA1
TESTA2
TESTA4
VMONI
IOVccDUM1~4
IOGNDDUM1~7
TESTO1~2
DUMMY
DUMMYR
HD66789
Rev.0.12, May 09 2003, page 13 of 156
Number
of Pins
2
2
1
1
8
1
1
1
1
4
7
2
I/O
I or O
I or O
I
I/O
O
I/O
I/O
I/O
O
O
O
-
-
-
Connected
to
Stabilizing
capacitor
Stabilizing
capacitor
GND or
external
resistor
open
open
open
open
open
open
Input pin
Input pin
-
-
-
Functions
Output from internal positive polarity operational amplifier when
the operational amplifier is ON (SAP2-0 = “001”, “010”, “011”,
“100”, and “101”). Stabilize by connecting to a capacitor.
Output from internal negative polarity operational amplifier when
the operational amplifier is ON (SAP2-0 = “001”, “010”, “011”,
“100”, and “101”). Stabilize by connecting to a capacitor.
Reference level for grayscale voltage generation circuit.
Connect to an external resistor when source driver is used to
adjust grayscale levels for each panel.
Test pin. Leave open.
Test pin. Leave open.
Test pin for VcomH. Leave open.
Test pin for VcomL. Leave open.
Test pin for VcomL. Leave open or connect to a stabilizing
capacitor depending on the display quality.
Test pin. Leave open.
Internal IOVcc level. When neighboring input pins are fixed to
the IOVcc side, short-circuit them.
Internal GND level. When neighboring input pins are fixed to the
IOVcc side, short-circuit them.
Dummy pads. Leave open.
Dummy pad. Leave open.
Dummy pad. Leave open.
Preliminary