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參數(shù)資料
| 型號： | HDSP-253 |
| 英文描述： | Eight Character 5 mm Smart Alphanumeric Display |
| 中文描述： | 八字5毫米智能字符顯示 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大小： | 201K |
| 代理商： | HDSP-253 |
7
Electrical Description
Pin Function
Description
RESET (RST, pin 1)
FLASH (FL, pin 2)
Reset initializes the display.
FL low indicates an access to the Flash RAM and is unaffected by the
state of address lines A
3
-A
4
.
Each location in memory has a distinct address. Address inputs (A
0
-A
2
)
select a specific location in the Character RAM, the Flash RAM or a
particular row in the UDC (User-Defined Character) RAM. A
3
-A
4
are
used to select which section of memory is accessed. Table 1 shows the
logic levels needed to access each section of memory.
Table 1. Logic Levels to Access Memory
FL
A
4
A
3
Section of Memory
0
X
X
Flash RAM
ADDRESS INPUTS
(A
0
-A
4
, pins 3-6, 10)
A
2
A
1
A
0
Character Address
1
0
0
UDC Address Register
Don’t Care
1
0
1
UDC RAM
Row Address
1
1
0
Control Word Register
Don’t Care
1
1
1
Character RAM
Character Address
CLOCK SELECT
(CLS, pin 11)
This input is used to select either an internal (CLS = 1) or external (CLS = 0)
clock source.
CLOCK INPUT/OUTPUT
(CLK, pin 12)
Outputs the master clock (CLS = 1) or inputs a clock (CLS = 0) for slave
displays.
WRITE (WR, pin 13)
Data is written into the display when the WR input is low and the
CE input is low.
CHIP ENABLE (CE, pin 14)
This input must be at a logic low to read or write data to the display and
must go high between each read and write cycle.
READ (RD, pin 19)
Data is read from the display when the RD input is low and the CE
input is low.
DATA Bus
(D
0
-D
7
, pins 20, 21, 25-30)
GND (SUPPLY) (pin 16)
The Data bus is used to read from or write to the display.
This is the analog ground for the LED drivers.
GND (LOGIC) (pin 18)
This is the digital ground for internal logic.
V
DD
(POWER) (pin 15)
Thermal Test (pin 17)
This is the positive power supply input.
This pin is used to measure the IC junction temperature.
Do not connect.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HDSP-2530 | 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: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-2531 | 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: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-2532 | 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: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-2533 | 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: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 |
| HDSP2533 | 制造商:Avago Technologies 功能描述:LED DISPLAY ALPHANUMERIC |
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