參數資料
型號: ML9205-01
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: 5 x 7 Dot Character x 16-Digit Display Controller/Driver with Character RAM
中文描述: 5 × 7點陣字符× 16位數字顯示控制器/驅動器的字符內存
文件頁數: 6/34頁
文件大?。?/td> 355K
代理商: ML9205-01
Semiconductor
ML9205-01
6/34
FEDL9205-02
PIN DESCRIPTION
3 to 37
Pin
QFP-1
*
Type Connects to
Fluorescent display tube anode electrode drive output.
Directly connected to fluorescent display tube and a pull-down
resistor is not necessary. I
OH
>
–5.0 mA
Fluorescent display tube grid electrode drive output.
Directly connected to fluorescent display tube and a pull-down
resistor is not necessary. I
OH
>
–50.0 mA
Fluorescent display tube anode electrode drive output.
Directly connected to fluorescent display tube and a pull-down
resistor is not necessary. I
OH
>
–10.0 mA
General port output.
Output of these pins in static operation, so these pins can drive
the LED. I
OH
>
–2.0 mA
Description
Symbol
QFP-2
*
Fluorescent
tube anode
electrode
5 to 39 SEG1 to 35
O
Fluorescent
tube grid
electrode
41 to 64 COM1 to 24
O
39 to 62
Fluorescent
tube anode
electrode
1 to 4 AD1 to AD4
O
1, 2,
79, 80
LED anode
electrode
74 to 77
P1 to P4
O
72 to 75
73
V
DD
71
40, 80 V
DISP1 to 2
66
65, 78
38, 78
64
63, 76
GND
V
FL1 to 2
Power
supply
V
DD
-GND are power supplies for internal logic.
V
DISP
-V
FL
are power supplies for driving fluorescent tubes.
Use the same power supply for V
DD
and V
DISP
.
Serial data input (positive logic).
Input from LSB.
Shift clock input.
Serial data is shifted on the rising edge of
CP
.
Chip select input.
Serial data transfer is disabled when
CS
pin is "H" level.
Micro-
controller
Micro-
controller
Micro-
controller
72
DA
I
70
71
CP
I
69
70
CS
I
68
Reset input.
"Low" initializes all the functions.
Initial status is as follows.
Address of each RAM
Data of each RAM
Display digit
Brightness adjusment
All lights ON or OFF
All outputs
RESET
address "00"H
Content is undefined
24 digits
8/16
OFF mode
"Low" level
R
2
C
2
(Circuit when R and C are
connected externally)
See Application Circuit.
69
RESET
I
67
Micro-
controller
or
C
2
, R
2
External RC pin for RC oscillation.
Connect R and C externally. The RC time constant depends on the
V
DD
voltage used. Set the target oscillation frequency to 2 MHz.
OSC0
OSC1
R
1
C
1
(RC oscillation circuit)
See Application Circuit.
67
OSC0
I
65
68
OSC1
O
66
C
1
, R
1
* QFP-1: QFP80-P-1414-0.65-K
* QFP-2: QFP80-P-1420-0.80-BK
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