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NJU6535 PDF даташит

Спецификация NJU6535 изготовлена ​​​​«New Japan Radio» и имеет функцию, называемую «LCD Driver».

Детали детали

Номер произв NJU6535
Описание LCD Driver
Производители New Japan Radio
логотип New Japan Radio логотип 

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NJU6535 Даташит, Описание, Даташиты
NJU6535
Preliminary
1/3 , 1/4 Duty LCD Driver
GENERAL DESCRIPTION
www.datasheet4u.com
The NJU6535 is a 1/3 or 1/4 duty LCD driver for
segment type LCD panel with key scan function
transmitting the 30 keys maximum scanned data (6 x 5 =
30) to CPU.
The NJU6535 chooses numbers of common, key scan,
and general purpose ports by instructions. Therefore, It
drives 126 segments at 1/3 duty in use of 3 commons and
42 segments or 164 segments at 1/4 duty in use of 4 and
41. Also it provides 4 general purpose output ports
maximum to drive LEDs or others directly.
Furthermore, the NJU6535 can select a LCD driving
voltage out of 8 steps voltage by the instruction to adjust
the display contrast of LCD panel.
FEATURES
42-segment Drivers
Programmable Duty Ratio
1/3 Duty : 126-segment (Maximum)
1/4 Duty : 164-segment (Maximum)
30-key Scan Function (6X5 matrix)
Needless for anti-reverse current diodes in key scan
Programmable Bias Ratio 1/2, 1/3 bias
Output Port for LED (maximum 4 LED)
Serial Interface (SI, SO, SCL, CS)
Useful Instruction set
Incorporated LCD Driving Voltage Generator Circuits
Electrical Variable Resistance (8-step)
Logic Operating Voltage
4.5 ~ 5.5V
LCD Driving Voltage
~5.5V
Package Outline
QFP64-G1
QFP64-H1
C-MOS Technology (Substrate :P)
PACKAGE OUTLINE
NJU6535FG1
NJU6535FH1
02/08/06
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NJU6535 Даташит, Описание, Даташиты
NJU6535
PIN LOCATION
www.datasheet4u.com
S5
K0
K1
K2
K3
K4
VDD
V0
V1
V2
VSS
OSC
SO
CE
SCL
SI
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
BLOCK DIAGRAM
VDD
V0
V1
V2
VSS
OSC
E.V.R.
Oscillator
Common
Driver
Instruction
Data Buffer
Instruction
decoder
VDD
VSS
Reset
Reset
I/O Buffer
Segment Driver
General output Driver
Display Data Buffer
Key Buffer
Key Scan controller
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NJU6535 Даташит, Описание, Даташиты
NJU6535
TERMINAL DESCRIPTION 1
No. SYMBOL
1 SEG1/P0
2 SEG2/P1
3 SEG3/P2
www.datashee4t4u.com SEG4/P3
5 to 39 SEG5 to
SEG39
40 COM1
41 COM2
42 COM3
43 SEG40/COM4
I/O
O
O
O
O
44 SEG41/S0 O
45 SEG42/S1
46
47
48
49
50 to 54
S2 to S6
K0 to K4
O
I
55 VDD -
56 V0 I
57 V1
58 V2
59 VSS -
60
OSC
I/O
61 SO O
62 CE I
63 SCL I
64 SI I
FUNCTION
LCD Segment output terminal / General output terminal.
Select Segment output terminal or General output terminal by the instruction.
LCD Segment output terminal
LCD Common output terminal
LCD Segment output terminal / LCD Common output terminal
SEG40 in 1/3Duty use, COM4 in 1/4Duty use.
LCD Segment output terminals / key scanning output terminals
Select Segment output terminal or key scanning output terminal by the
instruction. (No need for anti-reverse current diode in key scan)
Key scanning output terminals.
(No need for anti-reverse current diode in key scan)
Key scanning input terminals.
(with internal pull-down resistor)
Power source: VDD=5V with LCD driving voltage input.
LCD driving voltage stabilization capacitor terminals.
In use of 1/2 bias, connects V1 to V2.
GND: VSS=0V
System clock input terminal
This terminal should be open for internal clock operation.
Change Oscillation frequency by connecting capacitor and resistor. Inputs
external oscillation clock.
Data output terminal.
Chip enable terminal.
Shift clock input terminal.
Data input terminal.
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