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SCF5740 PDF даташит

Спецификация SCF5740 изготовлена ​​​​«Siemens Semiconductor» и имеет функцию, называемую «(SCF5740 - SCF5744) Dot Addressable Intelligent Display».

Детали детали

Номер произв SCF5740
Описание (SCF5740 - SCF5744) Dot Addressable Intelligent Display
Производители Siemens Semiconductor
логотип Siemens Semiconductor логотип 

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SCF5740 Даташит, Описание, Даташиты
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STANDARD RED SCF5740
HIGH EFFICIENCY RED SCF5742
HIGH EFFICIENCY GREEN SCF5744
0.270” 4-Character, 5x7 Dot Matrix
Serial Input Dot Addressable Intelligent Display
Package Dimensions in Inches (mm)
.157 –.007
(3.99 –.18)
.325
(8.26)
.175
(4.45)
.790 –.010
(20.07 –.25)
.270
(6.86)
.600 –.020
(15.25 –.51)
FEATURES
Four 0.270” (6.85 mm) 5 x 7 Dot Matrix Characters
in Red, High Efficiency Red, High Efficiency Green
Optimum Display Surface Efficiency (display area
to package ratio)
High Speed Data Input Rate: 5 MHz
ROMless Serial Input, Dot Addressable Display
Ideal for User Defined Characters
Built-in Decoders, Multiplexers and LED Drivers
Readable from 6 Feet (1.8 meters)
Wide Viewing Angle, X Axis ±55°, Y Axis ±55°
Attributes
– 140 Bit RAM for User Defined Characters
– Eight Dimming Levels
– Power Down Model (<250 µW)
– Hardware/Software Clear Functions
– Internal or External Clock
Pin 1
Indicator
1.300 max.
(33.02)
EIA Date Code
Luminous Intensity Code
SCF574X
SIEMENS
Z .276 max.
YYWW (7.0) max.
.100 –.015
(2.54 –.38)
.145 –.015
(3.68 –.38)
.160 –.020
(4.06) –.51)
.018 X .012
(.46 X .30)
(Leads 22 plcs.)
DESCRIPTION
The SCF574X is a four digit, dot addressable 5x7 dot matrix,
serial input, alphanumeric Intelligent Display. The four digits are
packaged in a rugged, high quality, optically transparent, plastic
22 pin DIP with 0.1” pin spacing.
The on-board CMOS has a 140 bit RAM, one bit associated with
one LED, each to generate User Defined Characters. In Power
Down Mode, quiescent current is <50 µA.
The SCF574X is designed for work with the serial port of most
common microprocessors. Data is transferred into the display
through the Serial Data Input (DATA), clocked by the Serial Data
Clock (SDCLK), and enabled by the Load Input (LOAD).
The Clock I/O (CLK I/O) and Clock Select (CLK SEL) pins offer
the user the capability to supply a high speed external multiplex
clock. This feature can minimize audio in-band interference for
portable communication equipment or eliminate the visual
sychronization effects found in high vibration environments such
as avionic equipment.
2–200









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SCF5740 Даташит, Описание, Даташиты
Maximum Rating
DC Supply Voltage ........................................ –0.5 to +7.0 Vdc
Input Voltage Levels Relative
to Ground................................................–0.5 toVCC+0.5 Vdc
Operating Temperature ................................. –40°C to +85°C
Storage Temperature .................................... –40°C to +100°C
Maximum Solder Temperature 0.063"
below Seating Plane, t<5 sec...................................... 260°C
Relative Humidity at 85°C................................................. 85%
Maximum Number of LEDs at 100% Brightness ................. 64
Maximum Power Dissipation ........................................ 0.65 W
ESD (100 pF, 1.5 K)........................................................2 KV
Maximum Input Current .............................................± 186 mA
Switching Specifications
(over operating temperature range and VCC=4.5 V to 5.5 V)
Symbol Description
Min.
Units
TRC
Reset Active Time
600
ns
TLDS
Load Setup Time
50
ns
TDS Data Setup Time 50 ns
TSDCLK
Clock Period
200 ns
TSDCW
Clock Width
70 ns
TLDH
Load Hold Time
0
ns
TDH Data Hold Time
25 ns
TWR Total Write Time
2.2 µs
TBL
Time Between Loads 600
ns
Note:
TSDCW is the minimum time the SDCLK may be low or high. The
SDCLK period must be a minimum of 200 ns.
LOAD
TLDS
TDS
DATA
D0
TDH
SDCLK
TSDCW
TSDCLK
Figure 1. Timing diagram–Data write cycle
TWR
LOAD
D7
TBL
TLDH
SDCLK
DATA
LOAD
D0 D1 D2 D3 D4 D5 D6 D7
OR
D0
SDCLK
DATA
D0 D1 D2 D3 D4 D5 D6 D7
Figure 2. Timing diagram–Instruction cycle
D0
2–201
SCF5740/2/4









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SCF5740 Даташит, Описание, Даташиты
Electrical Characteristics (over Operating Temperature)
Parameter
Min. Typ. Max. Units
Conditions
VCC
ICC (Pwr Dwn Mode)(4)
ICC 4 digits
20 dots/character
4.5
5.0 5.5 V
50 µA
150 186 mA
VCC=5 V, all inputs=0 V or VCC
VCC=5 V, “#” displayed in all 4 digits at 100%
brightness at 25°C
IIL Input current
IIH Input current
VIH
VIL
IOH (CLK I/O)
IOL (CLK I/O)
θJC-PIN
Fext External Clock
Input Frequency
–10 µA
+10 µA
3.5 V
1.5 V
–28 mA
23 mA
32 °C/W
120 347 KHz
VCC=5 V, VIN=0 V (all inputs)
VCC=VIN=5.0 V=0 V (all inputs)
VCC=4.5 V to 5.5 V
VCC=4.5 V to 5.5 V
VCC=4.5 V, VOH=2.4 V
VCC=4.5 V, VOL=0.4 V
VCC=5.0 V, CLKSEL=0
Fosc Internal Clock
Input Frequency
120
347 KHz
VCC=5.0 V, CLKSEL=1
Clock I/O Bus Loading
240 pF
Clock Out Rise Time
Clock Out Fall Time
FM, Digit
500 ns
500 ns
375 768 1086 Hz
VCC=4.5 V, VOH=2.4 V
VCC=4.5 V, VOH=0.4 V
Notes
1. Peak current 5/3 x ICC.
2. Unused inputs must be tied high.
3. Contact Siemens for 3.3 volt operation.
4. External oscillator must be stopped if being used to maintain an ICC <50µA.
Input/Output Circuits
Figures 3 and 4 show the input and output resistor/diode
networks used for ESD protection and to eliminate substrate
latch-up caused by input voltage over/under shoot.
VCC
VCC
input
1 K
input/output
1 K
GND
Inputs
GND
Clock I/O
Figures 3 and 4.
2–202
SCF5740/2/4










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