74HC4511D,653

Overview

The Nexperia 74HC4511D,653 is a BCD to 7-segment latch/decoder/driver in the 74HC series. It features four address inputs (A-D), a latch enable input (LE), a ripple blanking input (BI), and a lamp test input (LT). The device drives common cathode LED displays with seven segment outputs (a-g). It operates on a supply voltage range of 2.0 V to 6.0 V. Key electrical parameters include a guaranteed 10 mA drive capability per output and high noise immunity. The component supports CMOS input levels and includes clamp diodes for interface protection.

Feature Summary

• BCD to 7-segment decoding with integrated latch storage for stable display data
• Direct driving capability for common cathode LED displays with 10 mA output current
• Functional control via Lamp Test and Ripple Blanking inputs for system diagnostics

Applications

• Driving common cathode 7-segment LED numeric displays
• Digital counter output visualization systems
• Instrument panel indicator interfaces

Procurement Notes

Verify the specific suffix '653' against the manufacturer's latest datasheet to confirm package type and tape/reel specifications. Ensure the design utilizes common cathode LEDs, as this decoder does not support common anode configurations directly. Confirm supply voltage compatibility within the 2V to 6V range for the target application environment.

Selection Notes

Select this component when a dedicated BCD-to-7-segment decoder with latch functionality is required. It is suitable for applications needing direct LED drive without external transistors. Consider the 74HCT variant if TTL input levels are necessary instead of CMOS levels. Verify that the 10 mA output current meets the LED forward current requirements.

Part Context

This part belongs to the Nexperia 74HC logic family, designed for general-purpose digital applications. The 74HC4511 specifically addresses the need for converting binary-coded decimal signals into visual segment outputs. It integrates latching to hold display data independent of input changes, reducing bus contention during multiplexed scanning operations.

Replacement Considerations

The 74HC4511PW,118 is a documented alternative from Nexperia. Verify pinout and electrical characteristics match before substitution.