參數(shù)資料
型號: HL14203
廠商: Hynix Semiconductor Inc.
英文描述: Hyundai Electronics Industries System IC Division
中文描述: 現(xiàn)代電子工業(yè)系統(tǒng)集成電路部
文件頁數(shù): 24/26頁
文件大?。?/td> 421K
代理商: HL14203
24
HL14203
P r e l i m i n a r y
14. Application
L
.
COM1
COM2
COM3
P1 / SEG1
P2 / SEG2
P3 / SEG3
P4 / SEG4
S.
SEG40
S
E
G
4
1
/
K
S
1
S
E
G
4
2
/
K
S
2
K
S
6
K
S
5
K
S
4
K
S
3
(SEG41)
(SEG42)
CE
SCK
SI
SO
VCL1
VCL2
VDD
VSS
TEST
OSC
K
I
N
5
K
I
N
4
K
I
N
3
K
I
N
2
K
I
N
1
+5V
From the controller
To the controller
To the controller
power supply
*2)
(p 1)
(p 2)
(p 3)
(p 4)
(general-purpose
output ports)
Used with the
backlight controller
or other circuit.
Key matrix
(up to 30 keys)
Note : *1). Add a capacitor to the power supply line so that the power supply voltage VDD rise time when power is
applied and the power supply voltage VDD fall time when power drops are both at least 1 ms, as the
HL14203 is reset by the SVD.
*2). The SO pin, being an open-drain output, requires a pull-up resistor, Select a resistance (between 1 to 10k
)
appropriate for the capacitance of the external wiring so that signal waveforms are not degraded.
1/2 bias ( for use with normal panels )
C
0.047uF
*1)
C
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