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參數(shù)資料
| 型號： | ML9207-01GA |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 顯示控制器 |
| 英文描述： | 24 X 36 DOTS FLUORESCENT DSPL CTRL, PQFP80 |
| 封裝： | 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 32/35頁 |
| 文件大?。?/td> | 499K |
| 代理商： | ML9207-01GA |
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FEDL9207-02
OKI Semiconductor
ML9207-xx
6/35
PIN DESCRIPTION
Pin
QFP-1 *
QFP-2*
Symbol
Type
Connects to
Description
3 to 37
5 to 39
SEG1 to 35
O
Fluorescent tube
anode electrode
Fluorescent display tube anode electrode drive
output. Directly connected to fluorescent display
tube and a pull-down resistor is not necessary.
IOH > –5.0 mA
39 to 62 41 to 64 COM1 to 24
O
Fluorescent tube
grid electrode
Fluorescent display tube grid electrode drive
output. Directly connected to fluorescent display
tube and a pull-down resistor is not necessary.
IOH > –50.0 mA
1, 2, 79,
80
1 to 4
AD1 to AD4
O
Fluorescent tube
anode electrode
Fluorescent display tube anode electrode drive
output. Directly connected to fluorescent display
tube and a pull-down resistor is not necessary.
IOH > –10.0 mA
72 to 75 74 to 77
P1 to P4
O
LED anode
electrode
General port output. Output of these pins in
static operation, so these pins can drive the
LED. IOH > –2.0 mA
71
73
VDD
38, 78
40, 80
VDISP1 to 2
64
66
GND
63, 76
65, 78
VFL1 to 2
—
Power supply
VDD-GND are power supplies for internal logic.
VDISP-VFL are power supplies for driving
fluorescent tubes. Use the same power supply
for VDD and VDISP.
70
72
DA
I
Microcontroller
Serial data input (positive logic). Input from LSB.
69
71
CP
I
Microcontroller
Shift clock input. Serial data is shifted on the
rising edge of CP.
68
70
CS
I
Microcontroller
Chip select input. Serial data transfer is disabled
when CS pin is "H" level.
67
69
RESET
l
Microcontroller
Reset input.
"Low" initializes all the functions.
Initial status is as follows.
Address of each RAM ... address "00"H
Data of each RAM ......... Content is undefined
Display digit .................. 24 digits
Brightness adjustment .. 0/1024
All lights ON or OFF ..... OFF mode
All outputs .................... "Low" level
65
67
OSC0
I
66
68
OSC1
O
Crystal or
ceramic
resonator
Pins for self-oscillation.
(Do not apply external clocks to these pins.)
Connect these pins to the crystal and capacitors
or to the ceramic resonator and capacitors.
The target oscillation frequency is 4.0 MHz.
(Note that the device includes the feed back
resistor of 1 M
)
See Application Circuit.
* QFP1 : QFP80-P-1414-0.65-K
QFP2 : QFP80-P-1420-0.80-BK
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