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UPD161622 Datasheet(PDF) 9 Page - NEC

Part # UPD161622
Description  396 OUTPUT TFT-LCD SOURCE DRIVER WITH RAM
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

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Data Sheet S15649EJ2V0DS
9
µ PD161622
(2/2)
Symbol
Pin Name
Pad No.
I/O
Function
D0 to D5,
D8 to D15,
D6 (SCL),
D7 (SI)
Data bus
(serial clock)
(serial data input)
50 to 35
I/O
These pins comprise 16-bit bi-directional data.
When the serial interface has been selected (PSX = L), D7 functions as
a serial data input pin (SI), D6 functions as a serial clock input pin (SCL).
In either case, pins D0 to D7 and D8 to D15 are in high impedance mode.
When the chip is not selected, D0 to D15 are in high impedance mode.
RS
Index register/,
data/command selection
54
Input
When parallel data transfer has been selected, this pin is usually
connected to the least significant bit of the standard CPU address bus
and is used to distinguish between data from index registers and
data/commands.
RS = H: Indicates that data from D0 to D15 is data/command
RS = L: Indicates that data from D0 to D7 is index register contents
Also, when serial data transfer is selected, the level of the RS pin is
fetched at the rising edge of the eighth clock of the serial clock and
whether the data is index register contents or data/command is
distinguished.
RS = H: Indicates that the data input to SI is data/command.
RS = L: Indicates that the data input to SI is index register contents.
IP0 to IP3
Input port
125, 127,
129, 131
Input
This is a general-purpose input port.
The status of these pins (H or L)
can be read via a command.
Because this is a CMOS input, do not leave open.
OP0 to
OP7
Output port
116 to 123
Output
This is a general-purpose output port.
The status of these pins (H or L)
can be write via a command.
Leave open when in unused.
RSEL
Oscillation signal select
28
Input
This pin is for oscillation signal selection. When in used external
resistance connection oscillator circuit, this pin set H. When in used
internal oscillator circuit, this pin set L.
RSEL = H: External resistance connection oscillator circuit select
RSEL = L: CR internal oscillator circuit select
OSCIN
Oscillation signal
32
Input
This pin is for oscillation signal input.
RSEL = H: Connect 51 k
Ω resistance between OSCIN and OSCOUT.
RSEL = L: Leave open
OSCOUT
Oscillation signal
30
Output
This pin is for oscillation signal input.
RSEL = H: Connect 51 k
Ω resistance between OSCIN and OSCOUT.
RSEL = L: Leave open
CSTB
GSTB logic signal
34
Output
This pin outputs STB signal for gate driver leveled by interface power
supply voltage (VCC2). This output signal is reverse signal of GSTB.


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