UPD16448AN NEC [NEC], UPD16448AN Datasheet - Page 4

• Manufacturer Part Number: UPD16448AN
• Description: SOURCE DRIVER FOR 240-OUTPUT TFT-LCD NAVIGATION, AUTOMOBILE LCD-TV
• Manufacturer: NEC [NEC]

1. PIN DESCRIPTION
4
C
H
STHR
STHL
CLI
CLI
CLI
INH
RESET
MP/TH
MP/1.5
R/L
V
V
V
V
V
TEST
DD1
DD2
SS1
SS2
SS3
1
1
to C
to H
1
2
3
Symbol
3
240
Video signal input
Video signal output
Cascade I/O
Shift clock input
Inhibit input
Reset input
Multiplexer circuit select input (1)
Multiplexer circuit select input (2)
Shift direction select input
Logic power supply
Driver power supply
Logic ground
Driver ground
Driver ground
Test pin
Name
Input R, G, and B video signals.
Video signal output pins. Output sampled and held video signals during
horizontal period.
Start pulse I/O pins of sample hold timing. STHR serves as an input pin
and STHL, as an output pin, in the case of right shift. In the case of left
shift, STHL serves as an input pin, and STHR, as an output pin.
A start pulse is read at the rising edge of CLI
generated at the rising edge of CLI
sampling, and at the rising edge of CLI
(for details, refer to the Timing charts in 2.FUNCTION DESCRIPTION).
Selects a multiplexer and one of the two sample and hold circuits at the
falling edge.
Resets the select counter of the multiplexer and the selector circuit of
the two sample and hold circuits when it goes high. After reset, the
multiplexer is turned OFF, so sure to input one pulse of the INH signal
before inputting the video signal. If the video signal is input without the
INH signal, sampling is not executed.
Four types of color filter arrays can be supported by combination of
MP/TH and MP/1.5.
R/L = L; left shift: STHL
3.0 V to 5.5 V
5.0 V
Connect this pin to ground of system.
Connect this pin to ground of system.
Connect this pin to ground of system.
Fix this pin to L.
R/L = H; right shift: STHR
Vertical stripe array
Single-side delta array
Mosaic array
Double-side delta array
0.5 V
Mode
H
240
H
1
Function
H
MP/TH
H
1
240
H
H
L
L
1
through CLI
STHR
1
during simultaneous sampling
STHL
1
. Sampling pulse SHP
MP/1.5
H
H
L
L
3
during successive
PD16448A
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