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参数资料
| 型号： | HDSP-2500 |
| 英文描述： | Eight Character 5 mm and 7 mm Smart Alphanumeric Displays |
| 中文描述： | 八字5毫米和7毫米智能字母数字显示器 |
| 文件页数： | 16/16页 |
| 文件大小： | 406K |
| 代理商： | HDSP-2500 |
9
Electrical Description
Pin Function
Description
RESET (RST, pin 1)
Initializes the display.
FLASH (FL, pin 2)
FL low indicates an access to the Flash RAM and is unaffected by the
state of address lines A3-A4.
ADDRESS INPUTS
Each location in memory has a distinct address. Address inputs (A0-A2)
(A0-A4, pins 3-6, 10)
select a specific location in the Character RAM, the Flash RAM or a
particular row in the UDC (User-Defined Character) RAM. A3-A4 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
Section of Memory
FL
A4
A3
A2 A1 A0
Flash RAM
0
X
Char. Address
UDC Address Register
1
0
Don't Care
UDC RAM
1
0
1
Row Address
Control Word Register
1
0
Don’t Care
Character RAM
1
Character Address
CLOCK SELECT
Used to select either an internal (CLS = 1) or external (CLS = 0) clock source.
(CLS, pin 11)
CLOCK INPUT/OUTPUT
Outputs the master clock (CLS = 1) or inputs a clock (CLS = 0) for slave
(CLK, pin 12)
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 17)
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 18)
Data is read from the display when the RD input is low and the CE
input is low.
DATA Bus (D0-D7,
Used to read from or write to the display.
pins 19, 20, 23-28)
GND (SUPPLY) (pin 15)
Analog ground for the LED drivers.
GND (LOGIC) (pin 16)
Digital ground for internal logic.
VDD (POWER) (pin 14)
Positive power supply input.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HDSP-2501 | 功能描述:LED 显示器和配件 Yellow 585nm 5x7 Smart Display RoHS:否 制造商:Avago Technologies 显示器类型:7 Segment 数位数量:2 字符大小:7.8 mm x 14.22 mm 照明颜色:Red 波长:628 nm 共用管脚:Common Anode 工作电压:2.05 V 工作电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 35 C 封装:Tube |
| HDSP-2502 | 功能描述:LED 显示器和配件 Red 626nm 5x7 Smart Display RoHS:否 制造商:Avago Technologies 显示器类型:7 Segment 数位数量:2 字符大小:7.8 mm x 14.22 mm 照明颜色:Red 波长:628 nm 共用管脚:Common Anode 工作电压:2.05 V 工作电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 35 C 封装:Tube |
| HDSP2502 | 制造商:Avago Technologies 功能描述:LED DISPLAY ALPHANUMERIC |
| HDSP-2503 | 功能描述:LED 显示器和配件 Green 574nm 5x7 Smart Display RoHS:否 制造商:Avago Technologies 显示器类型:7 Segment 数位数量:2 字符大小:7.8 mm x 14.22 mm 照明颜色:Red 波长:628 nm 共用管脚:Common Anode 工作电压:2.05 V 工作电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 35 C 封装:Tube |
| HDSP2503 | 制造商:Avago Technologies 功能描述:LED DISPLAY ALPHANUMERIC |
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