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4 digit 7 segment LED displays with Cascadable Serial driver

______________________________________________________

B14SC04

B20SC04

B25SC04

B38SC04

General Description

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鈥檚 on. Low power shutdown reduces

current to 150uA.

Configuration

Dim

(mm)

A

B

C

D

E

B14

58.5

2.54

14.0

37.0

51.5

Dimensions

B20

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

Depth 16.0

Pinout

1

+

5V

+5V

2

3

5

CS CLK

DIN DOUT

4

6

7

0V

0V

8

9

SEGA

SEGB

10

11

SEGC

SEGD

12

13

15

17

19

SEGE SEGG DIG1 DIG3

SEGF SEGDP DIG2 DIG4

14

16

18 20

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

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B14SC04-R相關(guān)型號(hào)PDF文件下載

• 型號(hào)
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• B14SC04-R
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  DISPLAY 4 DIGIT HE RED 14MM
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• B14SC04-R
  英文版
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