CD4511 BCD to 7-Segment Latch Decoder Driver IC

The CD4511 is a CMOS integrated circuit that converts binary-coded decimal (BCD) input signals into decoded outputs that drive 7-segment LED or LCD displays. This latch decoder driver accepts 4-bit BCD data and produces the seven individual segment signals needed to display digits 0–9. It integrates latching logic, eliminating the need for external storage circuits in multiplexed display applications.

Specifications

• IC Type: CMOS Latch Decoder Driver
• Input: 4-bit BCD (A, B, C, D pins)
• Output: 7 active-high segment drives (a–g)
• Supply Voltage: 3 to 18 V (typical 5 V or 12 V)
• Output Current: Up to 25 mA per segment
• Features: On-chip latch, lamp test, blanking control
• Package: DIP-16 (dual in-line)
• Logic Family: CD4000 CMOS series

Compatible with

Arduino (via 5 V logic levels with current-limiting resistors), ESP32, ESP8266, Raspberry Pi (with logic level conversion), and STM32 microcontrollers. Requires external 7-segment display (common-anode or common-cathode, depending on output configuration).

What you can build with it

• Digital counters and frequency displays (timer circuits, step counters)
• Temperature or sensor readout panels (thermometer, pH meter displays)
• Scoreboard and timing boards for educational labs and maker projects

Built and Backed by Compoden

Compoden has supplied authentic electronics components to makers, schools, and institutions across India for 10 years. Every CD4511 is sourced from certified vendors and tested for functionality. We partner with you through the build: access our AI build companion via QR code, email, or WhatsApp for wiring help, code snippets, and troubleshooting—included with every order.

Pay your way: UPI, cards, or Cash on Delivery, anywhere in India.

Frequently Asked Questions