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參數資料
| 型號： | MM5484 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | MM5484 16-Segment LED Display Driver |
| 中文描述： | MM5484 16段LED顯示驅動器 |
| 文件頁數： | 3/4頁 |
| 文件大?。?/td> | 110K |
| 代理商： | MM5484 |
Functional Description
The MM5484 is designed to drive LED displays directly. Se-
rial data transfer from the data source to the display driver is
accomplished with 3 signals, DATA IN, CLOCK and EN-
ABLE. The signal ENABLE acts as an envelope and only
while this signal is at a logic ‘1’ do the circuits recognize the
clock signal.
While ENABLE is high, data on the serial data input is trans-
ferred and shifted in the internal shift register on the rising
clock edge, i.e. a logic ‘0’ to logic ‘1’ transition.
When the ENABLE signal goes to a low (logic zero state),
the contents of the shift register is latched and the display
will show the new data. While new data is being loaded into
the SR the display will continue to show the old data.
For the MM5484, data is output from the serial DATA OUT
pin on the falling edge of clock so cascading is made simple
with race hazards eliminated.
When the chip first powers on, an internal power on reset
signal is generated which resets the SR and latches to zero
so that the display will be off.
Timing Diagram
TL/F/6141–5
FIGURE 3
Physical Dimensions
inches (millimeters)
Molded Dual-In-Line Package (N)
Order Number MM5484N
NS Package Number N22A
3
相關PDF資料 |
PDF描述 |
|---|---|
| MM5484N | MM5484 16-Segment LED Display Driver |
| MM5484V | MM5484 16-Segment LED Display Driver |
| MM5486 | LED Display Driver |
| MM5486N | LED Display Driver |
| MM5486V | LED Display Driver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MM5484N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:MM5484 16-Segment LED Display Driver |
| MM5484V | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:MM5484 16-Segment LED Display Driver |
| MM5486 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LED Display Driver |
| MM5486 DIE | 制造商:Texas Instruments 功能描述: |
| MM5486N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LED Display Driver |
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