CD4056 is a part of the CD4000 IC series. CD4056 is a BCD – seven segment decoder/driver IC designed by using the complimentary MOS (CMOS) technology, integrated with p-type and n-type enhancement mode transistors. The IC is always available in 16-pin hermetically sealed dual in line package (DIP). The IC offers a wide variety of working conditions and is directly interfaceable with NMOS, PMOS, and TTL devices allowing it to be used in several TTL applications.
BCD to 7-Segment Decoder/Driver?
A BCD to Seven Segment decoder is a combinational logic circuit that accepts a decimal digit in BCD (input) and generates appropriate outputs for the segments to display the input decimal digit.
CD4056 Key Features
- Low or High output level dc drive for other types of displays
- Equivalent ac output drive for liquid-crystal displays-no external capacitor is required
- Full decoding of all input combinations 0-9 L, H, P, A and blank positions
- Strobed -latch function
- 5V-10V and 15V parametric ratings
CD4056 Pinout
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | STROBE | Strobe Pin |
| 2 | D | BCD input pin D |
| 3 | C | BCD input pin C |
| 4 | B | BCD input pin B |
| 5 | A | BCD input pin A |
| 6 | D-FREQ-IN | Display Frequency Input |
| 7 | VEE | Emitter supply |
| 8 | VSS | Source Supply |
| 9 | A | Decoded Output A |
| 10 | B | Decoded Output B |
| 11 | C | Decoded Output C |
| 12 | D | Decoded Output D |
| 13 | E | Decoded Output E |
| 14 | G | Decoded Output G |
| 15 | F | Decoded Output F |
| 16 | VDD | Drain Supply |
Application
- General purpose displays
- Calculators and meters
- Wall and table clock
- Industrial control panels
- Auto dashboard displays
CD4056 Datasheet
You can download the datasheet for CD4056 BCD-7segment decoder form the link given below:
See Also: 74LS30 8 Input NAND Logic Gate IC | 74LS31 Hex Delay Element/Delay Line Generator IC | 74LS28 Quad 2 – Input NOR Buffer IC
