hd66137t Renesas Electronics Corporation., hd66137t Datasheet - Page 6

• Manufacturer Part Number: hd66137t
• Description: High-voltage Durable 240-channel Common Driver For Dot-matrix Stn Lcd - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

HD66137T
Pin Functions (cont)
Classification
Control signal
6
Symbol
MODE0
MODE1
DIO1
DIO2
CCL
AMP
RESET
DISPOFF 253
M/S
DOC
Pin No.
256
256
246
265
248
252
263
247
254
Connected
to
—
Extension
driver or
MPU
MPU
—
MPU or V
MPU
—
—
CC
I/O
Input
I/O
Input
Input
Input
Input
Input
Output
Function
Switch terminals for the number of LCD drive
output pins.
Serial data input output pin
Built-in switching circuit clock input. When
use built-in switching circuit and generate V
this pin connect CL pin.
If built-in switching circuit is not used, CCL
must be fixed to GND
Built-in swiching circuit on-off control.
When use built-in switching circuit, this pin
must be fixed to V
If built-in switching circuit is not used, this pin
must be fixed to GND
Setting this pin to GND sets initializes the
alternating signal (M signal) circuit. A V
level RESET is normally used.
Setting this pin to GND sets LCD drive output
X1 to X240 to the VM level.
Controls the display-off function, and display-
off signal output from DOC pin.
When using M/S is low level, DOC pin should
be connect to SEG LSI Dispoff control pin.
"H" level
"H" level
"L" level
MODE0
"L" level
"H" level
"L" level
"H"
"H"
"L"
"L"
SHL
MODE1
"H"
"H"
DISPOFF
DIO1,2
DOC
"L"
"L"
When DISPOFF is Low level, X1-240 set VM level
Until serial data input 16 times X1-X240 set VM level
When DISPOFF is Low level, output low level
When DISPOFF is High level, output High level
Until serial data input 16 times output low level
from DOC pin
serial output pin
seiral input pin
Shift direction
240 - output (X1, X2, X3......X238, X239, X240)
200 - output (X21, X22, X23......X218, X219, X220)
160 - output (X41, X42, X43......X198, X199, X200)
Prohibited
DIO1
CC
.
1 2 3 4 5
seiral output pin
serial input pin
DIO2
141516
CC
EE
,