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參數(shù)資料
| 型號(hào)： | HDSP-2353 |
| 英文描述： | Extended Temperature Four Character 5.0 mm (0.20 Inch) 5 x 7 Alphanumeric Display for Sunlight Viewable Applications(應(yīng)用于日光觀察的擴(kuò)展溫度四字符5.0 mm (0.20 英寸) 5 x 7 文字?jǐn)?shù)字顯示器) |
| 中文描述： | 擴(kuò)展溫度4個(gè)字符5.0毫米（0.20英寸）5 × 7字符顯示的陽光可視應(yīng)用（應(yīng)用于日光觀察的擴(kuò)展溫度四字符5.0毫米（0.20英寸），5 × 7文字?jǐn)?shù)字顯示器） |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 307K |
| 代理商： | HDSP-2353 |
7
Figure 5. Block Diagram of an HDSP-235X Series LED Alphanumeric Display.
Electrical Description
The electrical configuration of the
HDSP-235X series alphanumeric
displays allows for an effective
interface to a microprocessor
data source. Each display device
contains four 5x7 LED dot matrix
characters and two integrated
circuits, as diagrammed in Figure
5. The two integrated circuits,
with TTL compatible inputs, form
a 28 bit serial-in-parallel-out
column data shift register. The
data input is connected to shift
register bit position 1 and the
data output is connected to bit
position 28. The shift register
parallel outputs are connected to
constant current sinking LED
row drivers that sink a nominal
19.6 mA. A logic 1 stored in
the shift register enables the
corresponding LED row driver
and a logic 0 stored in the shift
register disables the corresponding
LED row driver.
Column data is loaded into an on-
board shift register with high to
low transitions of the Clock input.
To load character information
into the display, column data for
the character 4 is loaded first and
the column data for character 1
is loaded last in the following
manner: The 7 data bits for
column 1, character 4 are loaded
into the on-board shift register.
Next, the 7 data bits for column
1, character 3 are loaded into the
on-board shift register, shifting
the character 4 data over one
character position. This process
is repeated until all 28 bits of
column data are loaded into the
on-board shift register. Then,
the column 1 input is energized
to illuminate column 1s in all four
characters. The procedure
is repeated for columns 2, 3, 4,
and 5.
The light output of the display
may be dimmed by pulse width
modulating (PWM) the blanking
input V
B
, with the brightness
being in direct proportion to the
LED on-time. When the blanking
input is at logic high the display
is illuminated and when the
blanking input is at logic low the
display is blanked. These displays
may be dimmed by PWM on the
order of a 2000:1 change in
brightness while maintaining
light output and color uniformity
between characters.
The LED on-time duty factor, DF,
may be determined when the
time to load the on-board shift
register, t, the column on-time
without blanking, T, and the
time display is blanked, TB, are
known:
T
DF = 5(t + T + TB)
LED
MATRIX
2
ROWS 1-7
ROWS 8-14
LED
MATRIX
3
ROWS 1-7
ROWS 15-21
LED
MATRIX
4
ROWS 1-7
ROWS 22-28
1
2
3
4
5
COLUMN
COLUMN DRIVE INPUTS
1
2
3
ROWS
4
5
6
7
CONSTANT CURRENT SINKING LED DRIVERS
BLANKING
CONTROL, V
B
28-BIT SIPO SHIFT REGISTER
SERIAL DATA
INPUT
1
2
3
4
5
6
7
CLOCK
SERIAL DATA
OUTPUT
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PDF描述 |
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| HDSP-2530 | Eight Character 5 mm Smart Alphanumeric Display(八字符5 mm 智能文字?jǐn)?shù)字顯示器) |
| HDSP-253X | Eight Character 5 mm Smart Alphanumeric Display |
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| HDSP-301G | 10 mm 1 Digit Slim Font Display(10 mm 1位數(shù)字細(xì)字型前端顯示器) |
| HDSP-301Y | 10 mm 1 Digit Slim Font Display(10 mm 1位數(shù)字細(xì)字型前端顯示器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HDSP-2500 | 功能描述:LED 顯示器和配件 Orange 602nm 5x7 Smart Display RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長(zhǎng):628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
| HDSP-2501 | 功能描述:LED 顯示器和配件 Yellow 585nm 5x7 Smart Display RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長(zhǎng):628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
| HDSP-2502 | 功能描述:LED 顯示器和配件 Red 626nm 5x7 Smart Display RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長(zhǎng):628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
| HDSP2502 | 制造商:Avago Technologies 功能描述:LED DISPLAY ALPHANUMERIC |
| HDSP-2503 | 功能描述:LED 顯示器和配件 Green 574nm 5x7 Smart Display RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長(zhǎng):628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
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