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CD74HC4518E

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Texas Instruments

HIGH SPEED CMOS LOGIC DUAL BCD UP-COUNTER

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CD74HC4518E - https://ti.com/content/dam/ticom/images/products/package/n/n0016a.png

CD74HC4518E

Active
Texas Instruments

HIGH SPEED CMOS LOGIC DUAL BCD UP-COUNTER

Technical Specifications

Parameters and characteristics for this part

SpecificationCD74HC4518E
Count Rate35 MHz
DirectionUp
Logic TypeDecade, Counter
Mounting TypeThrough Hole
Number of Bits per Element4
Number of Elements [custom]2
Operating Temperature [Max]125 °C
Operating Temperature [Min]-55 °C
Package / Case0.3 in, 7.62 mm
Package / Case16-DIP
ResetAsynchronous
Supplier Device Package16-PDIP
TimingSynchronous
Trigger TypeNegative, Positive
Voltage - Supply [Max]6 V
Voltage - Supply [Min]2 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

CD74HC4518 Series

High Speed CMOS Logic Dual BCD Up-Counter

PartSupplier Device PackageMounting TypeNumber of Elements [custom]TimingOperating Temperature [Min]Operating Temperature [Max]Count RateNumber of Bits per ElementPackage / CasePackage / CaseTrigger TypeResetLogic TypeVoltage - Supply [Max]Voltage - Supply [Min]Direction
Texas Instruments
CD74HC4518E
The CD74HC4518 is a dual BCD up-counter. The ’HC4520 and CD74HCT4520 are dual binary up-counters. Each device consists of two independent 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 the negative-going transition of CLOCK. The counters are cleared by high levels on the MASTER RESET lines. The counter can be cascaded in the ripple mode by connecting Q3to the ENABLE input of the subsequent counter while the CLOCK input of the latter is held low. The CD74HC4518 is a dual BCD up-counter. The ’HC4520 and CD74HCT4520 are dual binary up-counters. Each device consists of two independent 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 the negative-going transition of CLOCK. The counters are cleared by high levels on the MASTER RESET lines. The counter can be cascaded in the ripple mode by connecting Q3to the ENABLE input of the subsequent counter while the CLOCK input of the latter is held low.
16-PDIP
Through Hole
2
Synchronous
-55 °C
125 °C
35 MHz
4
0.3 in, 7.62 mm
16-DIP
Negative, Positive
Asynchronous
Counter, Decade
6 V
2 V
Up

Description

General part information

CD74HC4518 Series

The CD74HC4518 is a dual BCD up-counter. The ’HC4520 and CD74HCT4520 are dual binary up-counters. Each device consists of two independent 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 the negative-going transition of CLOCK. The counters are cleared by high levels on the MASTER RESET lines. The counter can be cascaded in the ripple mode by connecting Q3to the ENABLE input of the subsequent counter while the CLOCK input of the latter is held low.

The CD74HC4518 is a dual BCD up-counter. The ’HC4520 and CD74HCT4520 are dual binary up-counters. Each device consists of two independent 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 the negative-going transition of CLOCK. The counters are cleared by high levels on the MASTER RESET lines. The counter can be cascaded in the ripple mode by connecting Q3to the ENABLE input of the subsequent counter while the CLOCK input of the latter is held low.