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參數(shù)資料
| 型號(hào)： | LC7574NE |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 1/2 Duty VFD Driver for Frequency Display(用于電子調(diào)諧頻率顯示的1/2占空VFD顯示驅(qū)動(dòng)器) |
| 中文描述： | 1 / 2職務(wù)VFD驅(qū)動(dòng)器的頻率顯示器（用于電子調(diào)諧頻率顯示的1 / 2占空變頻顯示驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 4/10頁 |
| 文件大小： | 189K |
| 代理商： | LC7574NE |
Block Diagram
Pin Functions
No. 3586-4/10
LC7574NE, 7574NW
Pin No.
Pin
I/O
Function
Handling
when unused
4
V
FL
V
DD
V
SS
—
Driver block power supply. A voltage of between 8.0 and 18.0 V must be supplied.
—
1
—
Logic block power supply. A voltage of between 4.5 and 5.5 V must be supplied.
—
46
—
Ground. Must be connected to the system ground.
—
48
OSC
I/O
Oscillator connection. An oscillator circuit is formed by connecting an external resistor and capacitor
to this pin.
Display off control input
BLK = low (V
SS
): Display off (G1 and G2 = low)
BLK = high (V
DD
): Display on
Note that serial data can be transferred while the display is turned off.
V
DD
47
BLK
I
GND
44
CL
Serial data transfer inputs. These pins must be
connected to the system controller.
CL: synchronization clock
DI: transfer data
CE: chip enable
43
DI
I
GND
42
CE
When the analog dimmer is selected, the analog voltage applied to this pin controls the duty of the G1
and G2 digit output pins. Since a 6-bit A/D converter is applied to this analog voltage and that result is
input to a decoder that provides a built-in dimmer curve, the relationship between the analog voltage
and the duty can be specified as a mask program. Note that 63/96 · V
DD
is the full-scale level for the
6-bit A/D converter.
45
DIM
I
GND
2, 3
G1, G2
O
Digit outputs. The frame frequency f
O
is (f
OSC
/4096) Hz
Segment outputs for displaying the display data transferred by serial data input.
Open
41 to 5
S1 to S37
O
Open
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC7574NW | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/2 Duty VFD Driver for Frequency Display |
| LC75750E | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LC75750W | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LC75754M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:CMOS LSI |
| LC75757E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:LC75757E/W |
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