CD4028 belongs to 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4028 has BCD-to-Decimal Decoder
CD4028 has a supply voltage range of 5V to 20V, which is much higher than any contemporary logic family. It has buffered output which improves transfer characteristics by providing very high gain. All inputs are protected against static discharge with diodes to VDD and VSS.
CD4028 Features
- High-Voltage Types (20V Rating)
- BCD-to-Decimal Decoding or Binary-to-Octal Decoding
- High Decoded Output Drive Capability
- Standard Symmetrical Output Characteristics
- 100% Tested for Maximum Quiescent Current at 20V
- 5V, 10V, and 15V Parametric Ratings
- Maximum Input Current of 1μA at 18V Over Full Package Temperature Range; 100nA at 18V and +25oC
- Noise Margin (Over Full Package Temperature Range):
- 1V at VDD = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V
CD4028 Specifications
Absolute Maximum Ratings
- DC Supply Voltage Range, (VDD): -0.5V to +20V (Voltage Referenced to VSS Terminals)
- Input Voltage Range, All Inputs: -0.5V to VDD +0.5V
- DC Input Current, Any One Input: ±10mA
- Operating Temperature Range: -55oC to +125oC Package Types D, F, K, H
- Storage Temperature Range (TSTG): -65oC to +150oC
- Lead Temperature (During Soldering): +265oC
- At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum
CD4028 Pinout Diagram
CD4028 Pin Description
| Pin No | Pin Name | Description |
| 1 | 4 | Decimal Decoded Output 4 |
| 2 | 2 | Decimal Decoded Output 1 |
| 3 | 0 | Decimal Decoded Output 0 |
| 4 | 7 | Decimal Decoded Output 7 |
| 5 | 9 | Decimal Decoded Output 9 |
| 6 | 5 | Decimal Decoded Output 5 |
| 7 | 6 | Decimal Decoded Output 6 |
| 8 | VSS | Supply Voltage |
| 9 | 8 | Decimal Decoded Output 8 |
| 10 | A | BCD Input Pin A |
| 11 | D | BCD Input Pin D |
| 12 | C | BCD Input Pin C |
| 13 | B | BCD Input Pin B |
| 14 | 1 | Decimal Decoded Output 1 |
| 15 | 3 | Decimal Decoded Output 3 |
| 16 | VDD | Drain Voltage |
CD4028 Circuit
Applications
- Code Conversion
- Indication-Tube Decoder
- Address Decoding – Memory Selection Control
CD4028 Alternative Equivalent
CD4028
Download CD4028 BCD-to-Decimal Decoder Datasheet from the link given below.
