CD4511 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4511 has BCD to 7-segment Latch/Decoder/Driver
CD4511 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.

CD4511 Features
- Low logic circuit power dissipation
- High current sourcing outputs (up to 25 mA)
- Latch storage of code
- Blanking input
- Lamp test provision
- Readout blanking on all illegal input combinations
- Lamp intensity modulation capability
- Time share (multiplexing) facility
CD4511 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
- Power Dissipation (PD)
- Dual-In-Line 700 mW
- Small Outline 500 mW
- 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
CD4511 Pinout Diagram

CD4511 Pin Description
| Pin No | Pin Name | Description |
| 1 | B | Binary Input B |
| 2 | C | Binary Input C |
| 3 | LT’ | Lamp Test |
| 4 | BI’ | Blanking Pin |
| 5 | LE | Latch Enable |
| 6 | D | Binary Input D |
| 7 | A | Binary Input A |
| 8 | VSS | Supply Voltage |
| 9 | e | Seven Segment Output e |
| 10 | d | Seven Segment Output d |
| 11 | c | Seven Segment Output c |
| 12 | b | Seven Segment Output b |
| 13 | a | Seven Segment Output a |
| 14 | g | Seven Segment Output g |
| 15 | f | Seven Segment Output f |
| 16 | VDD | Drain Voltage |
CD4511 Circuit
Applications
- Display driver
- Computer/calculator display driver
- Cockpit display driver
- Various clock, watch, and timer uses
CD4511 Alternative Equivalent
CD4056
Download CD4511 BCD to 7-segment Latch/Decoder/Driver Datasheet from the link given below.




