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參數(shù)資料
| 型號(hào)： | B14SC04-R |
| 英文描述： | DISPLAY 4 DIGIT HE RED 14MM |
| 中文描述： | 顯示4位數(shù)何紅14毫米 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 292K |
| 代理商： | B14SC04-R |
Nexus Machines Ltd reserves the right to alter or withdraw the product specification and characteristics without prior notice at any time in line
with product development. Nexus Machines Ltd sole and exclusive warranty is that stated in the warranty article of the conditions of sale.
Although every effort is made to ensure this data is accurate no liability is accepted for errors or omissions that may affect the end product.
Week0802
- 1 -
4 digit 7 segment LED displays
with Cascadable Serial driver
______________________________________________________
B14SC04
B20SC04
General Description
B25SC04
B38SC04
The B14SCM04, B20SC04, B25SC04 and B38SC04 displays are 4 digit seven segment LED
displays combined with an 8 digit, multiplexed drive, integrated circuit with a cascadable serial
interface. Four digits are mounted with the driver on to the PCB which also has connections for
the BM multiplexed display family allowing expansion to 8 digits. The devices are available in
high efficiency red, green and yellow colour variants. Each of the standard displays has a right
hand decimal point in each digit. LED sizes include 14mm (0.56inch), 20mm (0.8inch) 25mm
(1inch) and 38mm (1.5inch) display areas.
The on board driver chip has a serial input format that features serial data, clock and chip enable.
A single 5 volt supply is required. The serial bus signals interface is HCMOS levels and the
format is compatible with SPI, QSPI and MICROWIRE. It features slew rate limiting for
reduced EMI. Included on chip is a BCD code B decoder and digit ram. An undedecoded mode
is also available. The chip can be programmed to display from 1 to 8 digits using the scan limit
register. Only one external resistor is required to set the maximum brightness that can then be
digitally dimmed in 16 levels. A test mode forces all LED’s on. Low power shutdown reduces
current to 150uA.
Configuration
Dimensions
B14
B20
Dim
(mm)
A
B
C
D
E
Depth
58.5
2.54
14.0
37.0
51.5
16.0
75.0
2.54
20.0
38.0
68.5
18.0
B25
97.0
2.54
25.0
44.0
90.0
18.0
B38
121.0
2.54
38.0
54.0
115.5
18.0
Pinout
1
+
5V CS CLK 0V SEGA
+5V
DIN DOUT 0V SEGB SEGD SEGF SEGDP DIG2 DIG4
2
4 6 8 10 12 14 16 18 20
3
5
7 9
11
SEGC SEGE SEGG DIG1 DIG3
13 15 17 19
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