CD74HCT4520E
ActiveHIGH SPEED CMOS LOGIC DUAL BINARY UP-COUNTERS
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CD74HCT4520E
ActiveHIGH SPEED CMOS LOGIC DUAL BINARY UP-COUNTERS
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Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | CD74HCT4520E | CD74HCT4520 Series |
|---|---|---|
| Count Rate | 25 MHz | 25 MHz |
| Direction | Up | Up |
| Logic Type | Binary Counter | Binary Counter |
| Mounting Type | Through Hole | Through Hole, Surface Mount |
| Number of Bits per Element | 4 | 4 |
| Number of Elements [custom] | 2 | 2 |
| Operating Temperature [Max] | 125 °C | 125 °C |
| Operating Temperature [Min] | -55 °C | -55 °C |
| Package / Case | 0.3 in, 7.62 mm | 0.154 - 7.62 in |
| Package / Case | 16-DIP | 16-DIP, 16-SOIC |
| Reset | Asynchronous | Asynchronous |
| Supplier Device Package | 16-PDIP | 16-PDIP, 16-SOIC |
| Timing | Synchronous | Synchronous |
| Trigger Type | Negative, Positive | Negative, Positive |
| Voltage - Supply [Max] | 5.5 V | 5.5 V |
| Voltage - Supply [Min] | 4.5 V | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
CD74HCT4520 Series
High Speed CMOS Logic Dual Binary Up-Counters
| Part | Trigger Type | Number of Bits per Element | Number of Elements [custom] | Voltage - Supply [Max] | Voltage - Supply [Min] | Package / Case | Package / Case | Logic Type | Operating Temperature [Min] | Operating Temperature [Max] | Direction | Mounting Type | Timing | Count Rate | Reset | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments CD74HCT4520EThe 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. | Negative, Positive | 4 | 2 | 5.5 V | 4.5 V | 0.3 in, 7.62 mm | 16-DIP | Binary Counter | -55 °C | 125 °C | Up | Through Hole | Synchronous | 25 MHz | Asynchronous | 16-PDIP |
Texas Instruments CD74HCT4520M96The 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. | Negative, Positive | 4 | 2 | 5.5 V | 4.5 V | 0.154 in, 3.9 mm Width | 16-SOIC | Binary Counter | -55 °C | 125 °C | Up | Surface Mount | Synchronous | 25 MHz | Asynchronous | 16-SOIC |
Description
General part information
CD74HCT4520 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.
Documents
Technical documentation and resources