Philips HEF4511B User Guide

Summary

A specialized BCD to 7-segment latch/decoder/driver designed for clear, reliable display output signals. This component accepts four BCD address inputs and latches the corresponding segment data to drive compatible displays. The accompanying technical manual provides comprehensive specifications, including detailed electrical ratings, timing diagrams, functional logic, and proven application guides. It is essential reading for electronics engineers designing systems that require driving various types of segmented indicators, such as LED, incandescent, fluorescent, or LCD readouts.

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Page 1 Text Content

INTEGRATED CIRCUITS

DATA SHEET For a complete data sheet, please also download: The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC

HEF4511B MSI BCD to 7-segment latch/decoder/driver

Product specification January 1995

File under Integrated Circuits, IC04

Page Summary Contents For Philips HEF4511B User Guide

Page 1 INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC The IC04 LOCMOS HE4000B Logic Package Outlines/Information ...

Page 2 Philips Semiconductors Product specification HEF4511B BCD to 7-segment latch/decoder/driver DESCRIPTION When EL is LOW, the state of the segment outputs (Oa to Og) is determined by the data on DA to D...

Page 3 This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated corre...

Page 4 Philips Semiconductors Product specification HEF4511B BCD to 7-segment latch/decoder/driver Fig.6 Logic diagram (one latch); see also Fig.5. FUNCTION TABLE INPUTS OUTPUTS EL BI LT DD DC DB DA Oa Ob Oc...

Page 5 Philips Semiconductors Product specification HEF4511B BCD to 7-segment latch/decoder/driver Fig.7 Display. RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134). Output (sou...

Page 6 Philips Semiconductors Product specification HEF4511B BCD to 7-segment latch/decoder/driver DC CHARACTERISTICS VSS 0 V Tamb (°C) VDD IOH HEF SYMBOL −40 MIN. MAX. MIN. TYP. MIN. MAX. Output voltage 4,1...

Page 7 Philips Semiconductors Product specification HEF4511B BCD to 7-segment latch/decoder/driver Tamb (°C) VDD IOH HEC SYMBOL −55 MIN. MAX. MIN. TYP. MIN. MAX. Output voltage 4,10 4,10 4,40 4,10 HIGH VOH 9...

Page 8 Philips Semiconductors Product specification HEF4511B BCD to 7-segment latch/decoder/driver AC CHARACTERISTICS VSS 0 V; Tamb °C; CL 50 p F; input transition times 20 ns VDD TYPICAL EXTRAPOLATION SYMBO...

Page 9 Philips Semiconductors Product specification HEF4511B BCD to 7-segment latch/decoder/driver VDD TYPICAL EXTRAPOLATION SYMBOL MIN. TYP. MAX. FORMULA Minimum EL ns pulse width; LOW t WELL ns Set-up time...

Page 10 Philips Semiconductors Product specification HEF4511B BCD to 7-segment latch/decoder/driver APPLICATION INFORMATION Some examples of applications for the HEF4511B are: Driving LED displays. Driving in...

Page 11 Philips Semiconductors Product specification HEF4511B BCD to 7-segment latch/decoder/driver (1) A filament pre-warm resistor is recommended to reduce filament thermal shock and increase the effective ...

Manual Details

Brand	Philips
Pages	11
File Size	108.47 KB
Published	July 10, 2026

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Frequently Asked Questions

What is the primary function of the HEF4511B device?

It functions as a BCD to 7-segment latch/decoder/driver for various display types.

What resistors are needed when connecting incandescent displays?

A filament pre-warm resistor is recommended to reduce thermal shock and increase cold resistance of the filament.

Can I directly drive modern LCD readouts with this device?

Direct d.c. drive of LCDs is not recommended for the lifetime of the LCD readouts.

What is the maximum rated output source current (IOH)?

The source output current (IOH) has a maximum rating of 25 mA.