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SN74LS393N
+StücklisteIC DUAL 4-BIT BINARY CNTR 14-DIP
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HerstellerTexas Instruments
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Herstellerteil #SN74LS393N
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Paket 14-DIP (0.300, 7.62mm)
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Auf Lager5317
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Spezifikationen
| Attribut | Wert |
| Package | Tube |
| Series | 74LS |
| ProductStatus | Active |
| LogicType | Binary Counter |
| Direction | Up |
| NumberofElements | 2 |
| NumberofBitsperElement | 4 |
| Reset | Asynchronous |
| CountRate | 35 MHz |
| TriggerType | Negative Edge |
| Voltage-Supply | 4.75 V ~ 5.25 V |
| OperatingTemperature | 0°C ~ 70°C |
| MountingType | Through Hole |
| Package/Case | 14-DIP (0.300, 7.62mm) |
Übersicht
Description
Key features of the SN74LS393N include:
1. Dual Counters: Two independent 4-bit counters allow for flexibility in applications.
2. Asynchronous Reset: Each counter has an asynchronous reset input to clear the counter to zero at any time.
3. Ripple-Carry Output: The counters can be cascaded to create longer counters by connecting the ripple-carry output to the clock input of subsequent counters.
4. TTL Compatibility: The device is compatible with TTL logic levels, making it easy to interface with other TTL devices.
Its compact 14-pin DIP (Dual Inline Package) form factor makes it suitable for breadboarding and prototyping in educational and hobbyist projects.
Equivalent
Features
1. Dual Counters: It consists of two independent 4-bit binary counters, which can be cascaded for higher bit counting.
2. Synchronous Operation: The counters are synchronous, meaning all the bits are updated simultaneously with the clock input.
3. TTL Compatible: Designed to be compatible with TTL (Transistor-Transistor Logic) levels, ensuring easy integration with other TTL devices.
4. High-Speed Performance: Capable of operating at relatively high frequencies due to its low propagation delay.
5. Low Power Consumption: The LS (Low-power Schottky) series offers reduced power consumption compared to standard TTL.
6. Clear Function: Each counter has a clear input that asynchronously clears the counter to zero when activated.
7. Wide Operating Temperature Range: Suitable for a variety of environments with a typical range of 0°C to 70°C.
8. Standard Package: Available in a standard 14-pin dual in-line package (DIP), simplifying circuit board layout and design.
These features make the SN74LS393N suitable for applications requiring reliable and efficient counting solutions.
Pinout
Pin configuration:
1. Pin 1 (1QA): Output of the first counter (QA).
2. Pin 2 (1Q0): Clock input for the first counter.
3. Pin 3 (1Q1): Output of the first counter (QB).
4. Pin 4 (1Q2): Output of the first counter (QC).
5. Pin 5 (1Q3): Output of the first counter (QD).
6. Pin 6 (2Q3): Output of the second counter (QD).
7. Pin 7 (GND): Ground.
8. Pin 8 (2Q2): Output of the second counter (QC).
9. Pin 9 (2Q1): Output of the second counter (QB).
10. Pin 10 (2Q0): Clock input for the second counter.
11. Pin 11 (2QA): Output of the second counter (QA).
12. Pin 12 (CLR): Clear input for both counters.
13. Pin 13 (2Q4): Not used, often left unconnected.
14. Pin 14 (VCC): Positive power supply.
The SN74LS393N is used for counting applications where two separate 4-bit binary counters are required.