hd66503 Renesas Electronics Corporation., hd66503 Datasheet - Page 3

• Manufacturer Part Number: hd66503
• Description: 240-channel Common Driver With Internal Lcd Timing Circuit - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

Pin Description
Classi-
fication
Power
supply
Control
signals
Symbol
V
V
GND
V
V
V1L, R
V2L, R
V5L, R
V6L, R
M/
DUTY
MWS0 to
MWS5
MEOR
CC1
CC2
EEL
EER
6
,
,
Pin No. Pin Name
246
267
250
245
268
244
269
241
272
242
271
243
270
266
259
257
256
255
254
253
252
258
V
GND
V
V1
V2
V5
V6
Master/slave Input
MWS0
MWS1
MWS2
MWS3
MWS4
MWS5
M Exclusive-
OR
Duty
CC
EE
I/O
Power
supply
Power
supply
Power
supply
Input
Input
Input
Input
Input
Input
Input
Number
of Pins Functions
2
1
2
2
2
2
2
1
1
6
1
Controls the initiation and termination of
V
V
LCD drive level power supply
See Figure 1.
the LCD timing generator. In addition,
the input/output is determined of 4 signal
pins: display data transfer clock (CL1);
first line marker (FLM); alternating signal
(M); and display off control (
Table 1 for details.
Selects the display duty cycle.
Low level: 1/120 display duty ratio
High level:
The number of line in the line alternating
waveform is set during master mode.
The number of lines can be set between
10 and 63.
When using the external alternating
signal or during slave mode, set the
number of lines to 0. See Table 2.
During master mode, the signals
alternating waveform output from pin M
is selected.
During low level, the line alternating
waveform is output from pin M.
During high level, pin M outputs an
EOR (exclusive OR) waveform between
a line alternating waveform and frame
alternating waveform. Set the pin to low
during slave mode. See Table 3.
CC
CC
–GND: logic power supply
–V
EE
: LCD drive circuits power supply
1/240 display duty ratio
HD66503
'2&
). See
929