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参数资料
| 型号： | SCF5742 |
| 元件分类： | 显示用LED |
| 英文描述： | 5X7 DOT MATRIX DISPLAY, SUPER RED, 6.86 mm |
| 封装： | ROHS COMPLIANT, PLASTIC, DIP-22 |
| 文件页数： | 13/15页 |
| 文件大小： | 683K |
| 代理商： | SCF5742 |
SCF5740, SCF5742, SCF5744
2006-01-23
7
Operation of the SCF574X
The SCF574X display consists of CMOS IC containing control logic
and drivers for four 5 x 7 characters. These components are assem-
bled in a compact plastic package.
Individual LED dot addressablity allows the user great freedom in
creating special characters or mini-icons.
The serial data interface provides a highly efficient interconnection
between the display and the mother board. The SCF574X requires
only 3 lines as compared to 14 for an equivalent four character par-
allel input part.
The on-board CMOS IC is the electronic heart of the display. The
IC accepts decoded serial data, which is stored in the internal RAM.
Asynchronously the RAM is read by the character multiplexer at a
strobe rate that results in a flicker free display. Figure SCF574X
Block Diagram“ (page 7) shows the three functional areas of the IC.
These include: the input serial data register and control logic, a
140 bits two port RAM, and an internal multiplexer/display driver.
SCF574X Block Diagram
Row 6
0
1
0
1= Display dot ON“
0=Display dot OFF“
Column Data Ranges
Row 0
00H to 1FH
Row 1
00H to LFH
Row 2
00H to LFH
Row 3
00H to LFH
Row 4
00H to LFH
Row 5
00H to LFH
Row 6
00H to LFH
Display Column and Row Format
C0
C1
C2
C3
C4
IDBD5073
Memory
Y
Address
Decode
User RAM
Drivers
Digit
Column
0 to 4
7 x 20 bits
X Address Decode
3-bit Address Register
6-bit Control
Word Register
Control Word Logic
Columns 0 to 20
0
Display
12
3
and Row Drivers
Row Control Logic
Counter
7
64
Counter
OSC
8-bit
Serial
Register
Rows
0 to 6
MUX
Rate
DATA
SDCLK
LOAD
CLKSEL
CLK I/O
RST
VDIM Controls
V1
V2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SCF5744 | 功能描述:LED 显示器和配件 5x7 Hi-Eff Green 0.27" 4-CHARACTER 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 |
| SCF62160 | 制造商:CELDUC 制造商全称:celduc-relais 功能描述:Power Solid State Relay |
| SCF-6C22-01-72 | 制造商:CORNING CABLE SYSTEMS 功能描述:6" dia., 22" length - 72 Fiber Canister Closure |
| SCF-6C28-01-144 | 制造商:CORNING CABLE SYSTEMS 功能描述:SPLICE CLOSURE 144 FIBER WITH TRAYS FOR HEAT SHRINK FUSION NO SPECIAL TOOLS |
| SCF-6C28-02 | 制造商:CORNING CABLE SYSTEMS 功能描述:288-F SPLICE CLOSURE AERIAL, BURIED OR DUCT, W/12 0.2-IN |
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