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1
DESCRIPTION
The LH168R is a 384-output TFT-LCD source
driver IC which can simultaneously display 16.7
million colors in 256 gray scales.
FEATURES
Number of LCD drive outputs : 384
Built-in 8-bit digital input DAC
Dot-inversion drive : Outputs the inverted gray
scale voltages between LCD drive pins next to
each other
2-port input for each circuit of data inputs R, G
and B, and it is possible to sample and hold
display data of two pixels at the same time
Possible to display 16.7 million colors in 256 gray
scales with reference voltage input of 18 gray
scales : This reference voltage input corresponds
to correction and intermediate reference voltage
input can be abbreviated
Cascade connection
Sampling sequence :
Output shift direction can be selected
XO
1
, YO
1
, ZO
1
/
XO
128
, YO
128
, ZO
128
or
ZO
128
, YO
128
, XO
128
/
ZO
1
, YO
1
, XO
1
Shift clock frequency : 65 MHz (MAX.)
Supply voltages
– V
CC
(for logic system) : +2.5 to +3.6 V
– V
LS
(for LCD drive) : +13 V (MAX.)
Package : 464-pin TCP (Tape Carrier Package)
PIN CONNECTIONS
LH168R
LH168R
384-output TFT-LCD Source Driver IC
XO
128
YO
128
ZO
128
382
383
384
XO
1
YO
1
ZO
1
1
2
3
C
GND
V
GND
XB
7
XB
0
XA
7
XA
0
YA
7
YA
SPOI
VH
0
VH
32
VH
64
VH
96
VH
128
VH
160
VH
192
VH
224
VH
256
VL
256
VL
224
VL
192
VL
160
VL
128
VL
96
VL
64
VL
32
VL
POLB
POLA
CK
SPIO
LS
REV
YB
7
YB
0
ZB
7
ZB
0
ZA
7
ZA
0
LBR
V
CC
V
GND
464
463
462
461
454
453
446
445
438
437
436
435
434
433
432
431
430
429
428
427
426
425
424
423
422
421
420
419
418
417
416
415
414
413
412
405
404
397
396
389
388
387
386
385
464-PIN TCP
TOP VIEW
NOTE :
Doesn't prescribe TCP outline.