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參數(shù)資料
| 型號： | ML9205-01GA |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 顯示控制器 |
| 英文描述： | 24 X 39 DOTS FLUORESCENT DSPL CTRL, PQFP80 |
| 封裝： | 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 31/34頁 |
| 文件大?。?/td> | 281K |
| 代理商： | ML9205-01GA |
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FEDL9205-03
1Semiconductor
ML9205-01
6/34
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.
I
OH > –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.
I
OH > –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.
I
OH > –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. I
OH > –2.0 mA
71
73
V
DD
38, 78
40, 80
V
DISP1 to 2
64
66
GND
63, 76
65, 78
V
FL1 to 2
—
Power supply
V
DD-GND are power supplies for internal logic.
V
DISP-VFL
are
power
supplies
for
driving
fluorescent tubes. Use the same power supply
for V
DD 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
or C
2, R2
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 adjusment .... 8/16
All lights ON or OFF ....... OFF mode
All outputs ...................... "Low" level
R2
C2
(Circuit when R and C are connected externally)
See Application Circuit.
65
67
OSC0
I
66
68
OSC1
O
C
1, R1
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
R1
C1
(RC oscillation circuit) See Application Circuit.
* QFP1 : QFP80-P-1414-0.65-K
QFP2 : QFP80-P-1420-0.80-BK
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