參數(shù)資料
型號(hào)： UPD16682W
廠商： NEC Corp.
英文描述： 1/65 DUTY LCD CONTROLLER/DRIVER WITH ON-CHIP RAM
中文描述： 1 / 65稅LCD控制器/驅(qū)動(dòng)器，片內(nèi)RAM
文件頁(yè)數(shù)： 9/56頁(yè)
文件大小： 435K
代理商： UPD16682W
Data Sheet S13368EJ3V0DS00
9
μ
PD16682
3.2 Logic System Pins (2/2)
Pin Symbol
Pin Name
Pad No.
I/O
Function Description
FR
Frame signal
3
Input
/Output
This pin is used as an I/O pin for the LCD’s AC conversion
signal.
This pin is used (along with the FRS pin) for the static drive.
FRS
Static signal
2
Output This pin is used as an output pin for the static drive.
This pin is used (along with the FR pin) for the static drive.
This pin is used to select master or slave operation mode.
Timing signals required for the LCD are output during master
mode and are input during slave mode to ensure synchronization
of the LCD block.
M,/S = H: Master operation mode
M,/S = L: Slave operation mode
Note the settings below, based on the status of the M,/S and
CLS pins.
M,/S
CLS
Oscillation
Circuit
Power
supply
circuit
CL
FR
FRS
/DOF
H
H
Valid
Valid
Output Output Output Output
L
Invalid
Valid
Input
Output Output Output
L
H
Invalid Invalid
Input
Input
Hi-Z
Input
M,/S
Master/Slave
75
Input
L
Invalid Invalid
Input
Input
Hi-Z
Input
This pin is used as the display clock I/O pin. Note the settings
below, based on the status of the M,/S and CLS pins.
M,/S
CLS
CL
H
H
Output
L
Input
L
H
Input
L
Input
CL
Display clock input
4
Input
/Output
When using this pin in master or slave mode, connect it to the
corresponding CL pin.
/DOF
Blink control
5
Input
/Output
This pin is used to control blinking in the LCD.
M,/S = H : Output
M,/S = L : Input
When using this pin in master or slave mode, connect it to the
corresponding /DOF pin.
HPM
Power supply circuit
select pin for LCD driver
81
Input
This pin is used as a power control pin of the power supply circuit
for the LCD driver.
HPM = H : Normal mode
HPM = L : High-power mode
IRS
Select pin for V
LC1
regulating resistor
83
Input
This pin is used to select the resistor that is used to regulate the
V
LC1
voltage.
IRS = H : Select on-chip resistor
IRS = L : Do not select on-chip resistor. The V
LC1
voltage is
regulated via the V
R
pin and an external divided resistor.
Use of the on-chip resistor cannot be selected or deselected via
a hard reset or via a reset command. Instead, use this pin to
select the setting.
TEST1 to
TEST3
Test pins
69 to 71
Input
These are test pins for IC tests. Normally, these pins should be
left open.
TEST4,TEST5
Test pins
72,73
Output These are test pins for IC tests. Normally, these pins should be
left open.
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