hd66137t Renesas Electronics Corporation., hd66137t Datasheet - Page 5

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

Pin Function
Classification
Power supply
Control signal
Symbol
VLCDL, R
VEEL, R
V
GND
VHL, R
VLL, R
VML, R
VEO
C1, C2
CL
M
MWS0
MWS1
MWS2
MWS3
MWS4
CC
,
Pin No.
273, 241
269, 245
257
250
272, 242
270, 244
271, 243
268
267, 266 Capacitance —
249
264
258
259
260
261
262
Connected
to
Power
supply
Power
supply
VEEL, R
MPU
Extension
driver or
MPU
—
I/O
—
Input
output
Input
I/O
Input
Functions
VLCDL, R–VEEL, R : Power supply for LCD
drive
VLCDL, R : Power supply for switch circuit
V
Power supply for LCD drive level
When use built -in switching circuit and
generate VEE, VEO pin connect to VEEL, R
pins. VM voltage is point of reference and
reversed and output the voltage input to the
voltage between VLCD and VM. If built-in
switching circuit is not used, don't connect
any lines to this pin.
External capacitance should be connected
here when using the switch circuit for
generate VEE.
If built-in switching circuit is not used, don't
connect any lines to this pin.
Shift clock input. Data is shifted at the falling
edge of shift clock CL of the shift register.
Inputs or outputs the alternating current for
LCD drive output.
This pin specifies the cycle of the alternating
signal (M signal) in the unit of the number of
lines. The number of lines, which is an
integer from 2 to 31, is specified as follows.
Usually, specify the number of lines within a
range from 10 to 31. When the HD66131T is
driven by an external alternating signal,
specify the number of lines as zero.
Number
of lines
31
CC
0
1
2
3
•
•
–GND : Power supply for logic circuit
VHL, R : Selected level (Set to the same
voltage as VLCDL, R.)
VLL, R : Selected level (Set to the same
voltage as VEEL, R.)
VML, R : Non-selected level and Power
supply for switch circuit
MWS4 MWS3 MWS2 MWS1 MWS0
0
0
0
0
1
•
•
0
0
0
0
1
•
•
0
0
0
0
1
•
•
0
0
1
1
1
•
•
0
1
0
1
1
•
•
Line alternating
waveform
——
Prohibited
2 lines alternated
3 lines alternated
31 lines alternated
HD66137T
•
•
M-pin status
Output
Input
5