HD66137 Datasheet, PDF (7/19 Pages) Hitachi Semiconductor – High-Voltage Durable 240-Channel Common Driver for Dot-Matrix STN LCD

HD66137T
Pin Functions (cont)
Connected
Classification Symbol Pin No. to
I/O
Function
Control signal SHL
251
—
Input This pin switches shift directions.
SHL
"H"
level
"L"
level
MODE0 MODE1
Shift direction
Right shift
"H" "H" DIO2→SR1········SR240→DIO1
"H" "L" DIO2→SR21········SR220→DIO1
"L" "H" DIO2→SR41········SR200→DIO1
Left shift
"H" "H" DIO1→SR240········SR1→DIO2
"H" "L" DIO1→SR220········SR21→DIO2
"L" "H" DIO1→SR200········SR41→DIO2
SR1, SR2•••SR240 correspond to X1,
X2•••X240.
Note: The 40 or 80 pins invalidated at the
200-output or 160-output mode output the
non-selected level synchronized every time;
release these pins.
LCD drive
output
X1 to
X240
1 to 240 LCD
Output
LCD drive output
By a combination of the display data and the
M signal, when DISPOFF is set to V_CC, either
VH, VL, or VM is selected and transmitted to
the output circuit.
M
1
0
D
1
Output
level
VL
0
1
0
VM VH VM
Note: Configuring the LCD panel using the HD66137 when using the select SEGMENT driver.
The Select SEGMENT driver
SEGMENT driver
HD66130 (320 OUT)
HD66132 (240 OUT)
HD66134S (240 OUT)
HD66136 (400 OUT)
Select
q
×
q
q
7