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參數(shù)資料
| 型號： | SCF5740 |
| 元件分類： | 顯示用LED |
| 英文描述： | 5X7 DOT MATRIX DISPLAY, STANDARD RED, 6.86 mm |
| 封裝： | ROHS COMPLIANT, PLASTIC, DIP-22 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 683K |
| 代理商： | SCF5740 |
SCF5740, SCF5742, SCF5744
2006-01-23
10
Row Strobing
The SCF574X allows a high frequency external oscillator source
to drive the display. Data bit, D4, in the control word format con-
trols the prescaler function. The prescaler allows the oscillator
source to be divided by 16 by setting D4=1. However, the pres-
caler should not be used, i.e., when using the internal oscillator
source.
The Software Clear (C0
HEX), given in Table Software Clear“
(page 10), clears the Address Register and the RAM. The display
is blanked and the Character Address Register will be set to Char-
acter 0. The internal counter and the Control Word Register are
unaffected. The Software Clear will remain active until the next
data input cycle is initiated.
Multiplexer and Display Driver
The four characters are row multiplexed with RAM resident column
data. The strobe rate is established by the internal or external
MUX Clock rate. The MUX Clock frequency is divided by a 448
counter chain. This results in a typical strobe rate of 768 Hz. By
pulling the Clock SEL line low, the display can be operated from an
external MUX Clock. The external clock is attached to the CLK I/O
connection (pin 9). The maximum external MUX Clock frequency
should be limited to 1.0 MHz.
An asynchronous hardware Reset is also provided. Bringing this
pin low will clear the Character Address Register, Control Word
Register, RAM, and blanks the display. This action leaves the dis-
play set at Character Address 0, and the Brightness Level set at
100%.
Electrical & Mechanical Considerations
Thermal Considerations
Optimum product performance can be had when the following
electrical and mechanical recommendations are adopted. The
SCF574X’s IC is constructed in a high speed CMOS process, con-
sequently high speed noise on the SERIAL DATA, SERIAL DATA
CLOCK, LOAD and RESET lines may cause incorrect data to be
written into the serial shift register. Adhere to transmission line ter-
mination procedures when using fast line drivers and long cables
(< 10 cm).
When the internal MUX Clock is being used connect the CLKSEL
pin to V
CC. In those applications where RESET will not be con-
nected to the system’s reset control, it is recommended that this
pin be connected to the center node of a series 0.1 F and 100 k
RC network. Thus upon initial power up the RESET will be held
low for 10 ms allowing adequate time for the system power supply
to stabilize.
ESD Protection
The input protection structure of the SCF574X provides significant
protection against ESD damage. It is capable of withstanding dis-
charges greater than 2.0 kV. Take all the standard precautions,
normal for CMOS components. These include properly grounding
personnel, tools, tables, and transport carriers that come in contact
with unshielded parts. If these conditions are not, or cannot be
met, keep the leads of the device shorted together or the parts in
anti-static packaging.
Soldering Considerations
The SCF574X can be hand soldered with SN63 solder using a
grounded iron set to 260°C.
Wave soldering is also possible following these conditions: Pre-
heat that does not exceed 93°C on the solder side of the PC board
or a package surface temperature of 85°C. Water soluble organic
acid flux (except carboxylic acid) or rosin-based RMA flux without
alcohol can be used.
Wave temperature of 245°C ± 5°C with a dwell between 1.5 sec. to
3.0 sec. Exposure to the wave should not exceed temperatures
above 260°C for five seconds at 1.59 mm (0.063") below the seat-
ing plane. The packages should not be immersed in the wave.
0
4
5
6
Columns
12 3 4
Load
Row
Load Row 0
1
2
3
0
Columns
01 2 3 4
Columns
01 2 3 4
Load Row 1
Load Row 2
Load Row 5
Columns
01 2 3 4
0
Columns
12 3 4
0 1
Load Row 4
Load Row 3
Columns
IDXX5190
23 4
0 1 2 3 4
Load Row 6
6
5
3
4
2
0
1
6
5
3
4
2
0
1
6
5
3
4
2
0
1
6
5
3
4
2
0
1
6
5
3
4
2
0
1
6
5
3
4
2
0
1
Software Clear
Op code
D7 D6
Control Word
D5 D4
D3
D2
D1
D0
Hex
Operation
Level
11
00
0
C0
CLEAR
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SCF5742 | 5X7 DOT MATRIX DISPLAY, SUPER RED, 6.86 mm |
| SCW-1510M-010 | LASER DIODE |
| SCW-1510J-100 | LASER DIODE |
| SCW-1510M-025 | LASER DIODE |
| SCW-1528M-100 | LASER DIODE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SCF5741 | 制造商:OSRAM 功能描述: |
| SCF5742 | 功能描述:LED 顯示器和配件 5x7 Hi-Eff Red 0.27" 4-CHARACTER 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 |
| SCF5744 | 功能描述:LED 顯示器和配件 5x7 Hi-Eff Green 0.27" 4-CHARACTER 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 |
| SCF62160 | 制造商:CELDUC 制造商全稱: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 |
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