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Description
Description:
CD4511 is a commonly used seven-segment display decoding driver. In addition to the seven-segment decoding circuit, it also has a latch circuit and an output driver. It has the characteristics of large output current, up to 25MA drive current, and can directly drive LED digital The tube CD4511 has 4 input terminals ABCD and 7 output terminals A~G, it also has input BCD code latch terminal LE, lamp test LT extinguishing control terminal BI. Among them, ABCD is the BCD code input, A is the low bit, the input state can be controlled through S1-S4, when the corresponding switch is disconnected (remove the short-circuit cap), the input is low level '0', when the corresponding switch is closed ( Put on the short-circuit cap), the input is high level 'ì'. LT is the light test terminal. When the level is high, the display will display normally. When the level is low, the display will always display the digital '8', and each segment will be lit to check whether the display is faulty. This function can be performed through 55 test. BI is the blanking function terminal, when it is low, it makes all 12345679101112131415 A A BB CCD DEFG LTBI LEIC1 CD4511 R9 1K R10 1K R11 1K R12 1K R13 1K R14 1K R15 1K A BC D E F G DP ABC-DEFGDP COM DS11R3K2K2 S2 S1 LED R1 LED3 LED4 GNDR51KR61KR71K S7 S6 S5 VCC VCC VCC GND GND 12 JP1 C147UF GND R81KLED5GND 816 All strokes are blanked. When displaying normally, the BI terminal should add a high level, and this function can be tested through 56. In addition, CD4511 has the feature of rejecting false codes. When the input data exceeds the decimal number 9 (1001), the display font will also be blanked by itself. LE is the latch control terminal, which is latched at high level and transmitted at low level. Test this function. A~G are 7-segment outputs, which can drive common cathode LED digital tube DS1. In the circuit, R1-R4, R8-R15 are the current limiting resistors of the LED.
Specifications:
Baby name: decoding display
Power supply voltage: 4-12V DC power supply
Circuit board size: 50*50 MM
Circuit board material: FR-4 board
1.6mm double sided
Package Include:
1×Decoding Display Module
