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參數(shù)資料
| 型號： | ML9208A-XXGA |
| 廠商： | LAPIS SEMICONDUCTOR CO LTD |
| 元件分類： | 顯示控制器 |
| 英文描述： | 5 X 7 DOT CHARACTER FLUORESCENT DSPL CTRL, PQFP64 |
| 封裝： | 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64 |
| 文件頁數(shù)： | 31/35頁 |
| 文件大小： | 632K |
| 代理商： | ML9208A-XXGA |
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FEDL9208A-02
ML9208A-xx
5/35
PIN DESCRIPTION
Pin
QFP /
TQFP
SSOP
Symbol
Type
Connects to
Description
1 to 31,
61 to 64
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 > –6 mA
32 to 47 40 to 55 COM1 to 16
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 > –30 mA
59, 60
3, 4
AD1, AD2
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 > –15 mA
57, 58
1, 2
P1, P2
O
LED drive
control pins
General port output.
Output of these pins in static operation, so these pins can
drive the LED.
56
64
VDD
49
57
GND
48
56
VFL
—
Power supply
VDD-GND are power supplies for internal logic.
VDD-VFL are power supplies for driving fluorescent tubes.
Apply VFL after VDD is applied.
55
63
DA
I
Microcontroller
Serial data input (positive logic).
Input from LSB.
54
62
CP
I
Microcontroller
Shift clock input. Serial data is shifted on the rising edge of
CP when CS pin is “L” level.
53
61
CS
I
Microcontroller
Chip select input.
Serial data transfer is enabled when CS pin is “L” level.
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 16 digits
Contrast adjustment 0/16
All lights ON or OFF OFF mode
All outputs “Low” level
52
60
RESET
I
Microcontroller
or C2, R2
(Circuit when R and C are
connected externally)
See Application Circuit.
50
58
OSC0
I
External RC pin for RC oscillation.
Connect R and C externally.
The RC time constant
depends on the VDD voltage used. Set the target oscillation
frequency to 2 MHz.
51
59
OSC1
O
C1, R1
(RC oscillation circuit)
See Application Circuit.
OSC0
OSC1
R
1
C1
RESET
R
2
C
2
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