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參數(shù)資料
| 型號： | ML9204 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 5 X 7 Dot Character ?24-Digit ?2-Line Display Controller/Driver with Character RAM (Built-in Key Scan) |
| 中文描述： | 5 × 7點陣字符？24位數(shù)字？2行顯示控制器/驅(qū)動器的字符內(nèi)存（內(nèi)置鍵掃描） |
| 文件頁數(shù)： | 4/41頁 |
| 文件大?。?/td> | 288K |
| 代理商： | ML9204 |
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PEDL9204-02
OKI Semiconductor
ML9204-xx
4/41
PIN DESCRIPTION
Pin
33 to 67
SEGA1 to A35
1 to 6
100 to
128
Symbol
Type
Connects to
Description
SEGB1 to B35
O
VFD tube anode
electrode
VFD tube anode electrode drive output.
Directly connected to fluorescent display tube and a
pull-down resistor is not necessary. I
OH
< –5 mA
8 to 31
COM1 to 24
O
VFD tube grid
electrode
VFD tube grid electrode drive output.
Directly connected to fluorescent display tube and a
pull-down resistor is not necessary. I
OH
< –25 mA
68
ADA
99
ADB
O
VFD tube anode
electrode
VFD tube anode electrode drive output.
Directly connected to fluorescent display tube and a
pull-down resistor is not necessary. I
OH
< –15 mA
96
V
DD
71
L-GND
7,32
V
COM
69,98
V
SEG
70,97
D-GND
—
Power supply
V
DD
-L-GND are power supplies for internal logic.
V
COM
-D-GND are power supplies for driving VFD tube
grid.
V
COM
-D-GND are power supplies for driving VFD tube
anode.
Use the same power supply for L-GND and D-GND.
94
DI/O
I/O
Micro controller
Serial data input-output (positive logic).
Data is input and output to sift register synchronized
with the rise of shift clock.
When Inputting data input from the LSB.
93
CP
l
Micro controller
Shift clock input.
Serial data is shifted on the rising edge of
CP
.
92
CS
l
Micro controller
Chip select input.
Serial data transfer is disabled when
CS
pin is “H” level.
95
INT
O
Micro controller
Output pin for interrupt signal to micro controller.
When depression or release of key matrix switch is
detected, key scanning starts and when 1 cycle is
completed, this pin becomes high level. Upon receiving
encoder type rotary switch input, this pin becomes high
level. The INT pin remains at high level until the key
scan stop mode is selected..
85,86
87,88
89,90
A1,B1
A2,B2
A3,B3
l
Rotary switch
Encoder type rotary switch input pins.
All inputs possess chattering absorption function of
256us period.
Those inputs must be tied to ground when they are
not used.
79 to 84
COL
1 to 6
I
Key matrix
Input pins for return signal from key matrix with built-in
pull-up resister.
When input is low level, the key matrix switch is
regarded as being pressed.
Dose not have chattering absorption function.
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| ML9204-xx | 5 X 7 Dot Character ?24-Digit ?2-Line Display Controller/Driver with Character RAM (Built-in Key Scan) |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ML9204-XX | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:5 X 7 Dot Character ?24-Digit ?2-Line Display Controller/Driver with Character RAM (Built-in Key Scan) |
| ML9205-01 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:5 x 7 Dot Character x 16-Digit Display Controller/Driver with Character RAM |
| ML9206 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:5 x 7 Dot Character x 16-Digit Display Controller/Driver with Character RAM |
| ML9206-XX | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:5 x 7 Dot Character x 16-Digit Display Controller/Driver with Character RAM |
| ML9207 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:5 X 7 Dot Character × 24-Digit Display Controller/Driver with Character RAM |
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