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CD4518BMS Datasheet CMOS Dual Up Counters

Manufacturer: Intersil (now Renesas)

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General Description

of ‘B’ Series CMOS Devices” CLOCK A ENABLE A Q1A Q2A Q3A Q4A RESET A VSS 1 2 3 4 5 6 7 8 16 VDD 15 RESET B 14 Q4B 13 Q3B 12 Q2B 11 Q1B 10 ENABLE B 9 CLOCK B Functional Diagram Applications 3 • Multistage Synchronous Counting • Multistage Ripple Counting • Frequency Dividers CLOCK A 1 ENABLE A 2 C ÷10/÷16 Q1A Q2A Q3A Q4A 4 5 6 Description CD4518BMS Dual BCD Up Counter and CD4520BMS Dual Binary Up Counter each consist of two identical, internally synchronous 4-stage counters.

The counter stages are D-type flip-flops having interchangeable CLOCK and ENABLE lines for incrementing on either the positive-going or negative-going transition.

For single unit operation the ENABLE input is maintained high and the counter advances on each positive-going transition of the CLOCK.

Overview

CD4518BMS, CD4520BMS December 1992 CMOS Dual Up Counters Pinout CD4518BMS, CD4520BMS TOP.

Key Features

  • High Voltage Types (20V Rating).
  • CD4518BMS Dual BCD Up Counter.
  • CD4520BMS Dual Binary Up Counter.
  • Medium Speed Operation - 6MHz Typical Clock Frequency at 10V.
  • Positive or Negative Edge Triggering.
  • Synchronous Internal Carry Propagation.
  • 100% Tested for 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.

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
RCA Logo CD4518B CMOS DUAL UP-COUNTERS RCA
ETCTI CD4518B CMOS DUAL UP-COUNTERS ETCTI

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