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SN74HC161DR
+物料清單IC 4BIT SYNC BINRY COUNTR 16SOIC
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製造商德州儀器
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製造商部分 #SN74HC161DR
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規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74HC |
| ProductStatus | Active |
| LogicType | Binary Counter |
| Direction | Up |
| NumberofElements | 1 |
| NumberofBitsperElement | 4 |
| Reset | Asynchronous |
| Timing | Synchronous |
| CountRate | 36 MHz |
| TriggerType | Positive Edge |
| Voltage-Supply | 2 V ~ 6 V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 16-SOIC (0.154, 3.90mm Width) |
概述
Description
The SN74HC161DR provides a carry output for cascading counters and operates with a clock frequency up to 29 MHz at 5V, ensuring fast and reliable performance. It is known for its low power consumption, inherent in CMOS technology, and high noise immunity. The device is typically packaged in a 16-pin SOIC (Small Outline Integrated Circuit) format, which is suitable for surface-mount technology, offering compact and efficient integration into digital systems.
Overall, the SN74HC161DR is ideal for applications requiring efficient binary counting, like digital clocks, frequency dividers, and other timing applications.
Equivalent
1. CD74HC161E – Texas Instruments
2. 74HC161D – Nexperia
3. MC74HC161ADG – ON Semiconductor
4. SN74HC161N – Texas Instruments
5. 74HC161N – NXP
These components share similar functions and characteristics but may differ in packaging, temperature range, or electrical specifications. Always check the datasheets for compatibility with your specific application.
Features
1. Clock Inputs: It operates with a positive-edge-triggered clock.
2. Clear Input: Asynchronous clear function to reset the counter.
3. Preset Capability: Allows loading of any desired initial value.
4. Synchronous Operation: Ensures all changes are synchronized with the clock.
5. Enable Inputs: Features two enable inputs for flexible operation control.
6. High-Speed Performance: Offers faster operations compared to standard logic families.
7. Low Power Consumption: Beneficial for battery-operated applications.
8. Wide Supply Voltage Range: Typically operates from 2V to 6V.
9. Output Drive Capability: Can drive up to 10 LS-TTL loads.
10. Temperature Range: Operates efficiently over a wide temperature range.
11. Package: Available in a SOIC-16 package for convenient PCB mounting.
These features make the SN74HC161DR suitable for applications requiring efficient counting and sequencing operations.
Pinout
Key functions of the SN74HC161DR include:
1. Binary Counting: It counts from 0 to 15 (4 bits) and then rolls over to 0.
2. Synchronous Operation: All changes occur on the rising edge of the clock pulse.
3. Parallel Load: Allows for the immediate setting of the counter to a specific value using the parallel data inputs.
4. Asynchronous Clear: Provides a way to reset the counter to zero, independent of the clock.
5. Ripple Carry Output (RCO): Used for cascading multiple counters.
The pin configuration typically includes pins for power supply (VCC and GND), four parallel data inputs, four output pins for the counter state, a clock input, a clear input, a load input, and enable inputs for count control.
Manufacturer
Application
1. Clock Division: It can divide clock frequencies in timing applications.
2. Digital Counters: Useful in creating counters for digital systems like timers and event counters.
3. Frequency Division: Employed in frequency synthesizers and radio transmitters.
4. Sequencers: Helps in designing sequence generators in control systems.
5. LED Chasers: Used in driving sequences for LED displays.
6. Data Processing: For handling operations in microprocessors and FPGAs.
7. State Machines: Forms part of state machines for control logic in embedded systems.
Its fast processing and versatility make it suitable for a variety of digital counting and sequencing tasks.