UPD161622 NEC, UPD161622 Datasheet - Page 8

• Manufacturer Part Number: UPD161622
• Description: 396 OUTPUT TFT-LCD SOURCE DRIVER
• Manufacturer: NEC

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3. PIN FUNCTIONS
3.1 Power Supply System Pins
3.2 Logic System Pins
8
/RESET
V
V
V
V
V
V
V
V
V
PSX
/CS
/RD
(E)
/WR
(R, /W)
C86
Symbol
Symbol
CC1
CC2
S
SS
0
RH
RL1
CC1(MODE)
SS(MODE)
to V
, V
5
RL2
Logic power supply
I/O power supply
Driver power supply
Ground
Power supply for
Mode setting pull-up
power-supply
Mode setting pull-down
power-supply
CPU interface selection
Chip select
Reset
Read
(enable)
Write
(read/write)
Select interface
-curve correction
Pin Name
Pin Name
71, 83, 84
57, 70
78, 79
69, 72, 72, 80
95 to 100,
94,
101, 102
27, 91, 124,
128, 132
20, 29, 31, 33, 51,
60, 88, 93, 103,
115, 126, 130
58
52
53
56
55
59
Pad No.
Pad No.
Data Sheet S15649EJ2V0DS
Input These pins are used to select the CPU interface mode.
Input This pin is used for chip select signals. When /CS = L, the chip is active
Input When /RESET is low, an internal reset is performed. The reset operation
Input When i80 series parallel data transfer (/RD) has been selected, the signal
Input When i80 series parallel data transfer (/WR) has been selected, the signal
Input This pin is used to switch between interface modes (i80 series CPU or M68
I/O
I/O
Power supply pin for logic circuit
Power supply pin for I/O buffer
Power supply pin for driver circuit
Ground pin for logic and driver circuits
PSX = H: Parallel interface
PSX = L: Serial interface
When the parallel interface is selected, this data but width can be changed
between 8 bits and 16 bits by using BMD of index register 5 (R5).
and can perform data input/output operations including command and data
I/O.
is executed at the /RESET signal level. Be sure to perform reset via this
pin at power application.
at this pin is used to enable read operations. Data is output to the data bus
only when this pin is low.
When M68 series parallel data transfer (E) has been selected, the signal at
this pin is used to enable read/write operations.
at this pin is used to enable write operations. Data is written at the rising
edge of this signal.
When M68 series parallel data transfer (R, /W) and serial data has been
selected, this pin is used to determine the direction of data transfer.
L: Write
H: Read
series CPU).
L: Selects i80 series CPU mode
H: Selects M68 series CPU mode
The
if the characteristics of the -curve and LCD panel in the
match, leave V
If some kind of correction is required, adjust the -curve by connecting
resistors between the V
Correction Power Supply Circuit for Cases of Unbalanced Driving).
Pull-up power-supply pin for mode setting
Pull-down power-supply pin for mode setting
PD161622 includes power supplies and resistors for the -curve, so
0
to V
5
, V
0
RH
to V
, V
RL1
5
, V
, V
Function
Function
RH
RL2
, V
open.
RL1
, V
RL2
pins (see 5.9 -Curve
PD161622
PD161622
(1/2)