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SN74LS169BNG4
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SN74LS169BNG4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Counter/Shift Register
  • Characteristics: High-speed, TTL Logic, Synchronous Operation
  • Package: DIP (Dual In-line Package)
  • Essence: 4-bit Synchronous Binary Up/Down Counter with Parallel Load
  • Packaging/Quantity: Bulk packaging, available in reels of 2000 units

Specifications

  • Supply Voltage Range: 4.75V to 5.25V
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Clock Frequency: 55 MHz
  • Number of Bits: 4
  • Logic Family: LS-TTL (Low Power Schottky Transistor-Transistor Logic)
  • Counting Modes: Up, Down, and Parallel Load
  • Output Drive Capability: 10 LSTTL Loads
  • Propagation Delay: 15 ns (max)

Detailed Pin Configuration

The SN74LS169BNG4 has a total of 16 pins, which are assigned as follows:

  1. CLK (Clock Input)
  2. P (Parallel Load Input)
  3. CPD (Count Enable Input)
  4. MR (Master Reset Input)
  5. Q0 (Least Significant Bit Output)
  6. Q1 (Output)
  7. Q2 (Output)
  8. Q3 (Most Significant Bit Output)
  9. GND (Ground)
  10. VCC (Positive Power Supply)
  11. D0 (Data Input)
  12. D1 (Input)
  13. D2 (Input)
  14. D3 (Input)
  15. TC (Terminal Count Output)
  16. CE (Ripple Carry Output)

Functional Features

  • Synchronous operation with the clock signal
  • Can count up or down based on the control inputs
  • Allows parallel loading of data into the counter
  • Provides a terminal count output for cascading multiple counters
  • Offers a ripple carry output for expanding the counting range

Advantages and Disadvantages

Advantages: - High-speed operation suitable for time-critical applications - TTL logic compatibility ensures easy integration with other ICs - Versatile counting modes provide flexibility in various applications - Parallel load capability allows quick initialization of the counter

Disadvantages: - Limited counting range due to the 4-bit configuration - Requires external components for proper clock signal generation - Higher power consumption compared to modern CMOS counterparts

Working Principles

The SN74LS169BNG4 is a synchronous counter that operates based on the clock input. When the clock signal transitions from low to high, the counter increments or decrements its value depending on the control inputs. The parallel load input allows loading of data into the counter when enabled. The terminal count output indicates when the counter reaches its maximum value, while the ripple carry output facilitates cascading multiple counters for extended counting ranges.

Detailed Application Field Plans

The SN74LS169BNG4 finds applications in various fields, including:

  1. Digital frequency division circuits
  2. Industrial automation systems
  3. Communication equipment
  4. Test and measurement instruments
  5. Automotive electronics
  6. Consumer electronics

Detailed and Complete Alternative Models

  1. CD40193BE: 4-bit Binary Up/Down Counter with Parallel Load
  2. MC14516B: Synchronous 4-Bit Up/Down Counter
  3. 74HC191: Presettable Synchronous 4-Bit Up/Down Counter
  4. CD4516BE: Presettable BCD Up/Down Counter

These alternative models offer similar functionality and can be used as replacements for the SN74LS169BNG4 in different applications.

Word Count: 446 words

技術ソリューションにおける SN74LS169BNG4 の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of SN74LS169BNG4:

  1. Q: What is SN74LS169BNG4? A: SN74LS169BNG4 is a 4-bit synchronous binary up/down counter with parallel load.

  2. Q: What is the operating voltage range for SN74LS169BNG4? A: The operating voltage range for SN74LS169BNG4 is typically between 4.75V and 5.25V.

  3. Q: Can SN74LS169BNG4 be used as a frequency divider? A: Yes, SN74LS169BNG4 can be used as a frequency divider by connecting the clock input to the desired input frequency and using the outputs accordingly.

  4. Q: How many inputs does SN74LS169BNG4 have? A: SN74LS169BNG4 has four inputs - two control inputs (up/down and load) and two clock inputs (CLK and CLK INH).

  5. Q: What is the maximum clock frequency for SN74LS169BNG4? A: The maximum clock frequency for SN74LS169BNG4 is typically 25 MHz.

  6. Q: Can SN74LS169BNG4 be cascaded to create larger counters? A: Yes, multiple SN74LS169BNG4 counters can be cascaded together to create larger counters with more bits.

  7. Q: What is the purpose of the parallel load input in SN74LS169BNG4? A: The parallel load input allows the user to load a specific value into the counter by applying the desired binary value to the parallel data inputs (D0-D3) and asserting the load input.

  8. Q: Can SN74LS169BNG4 be used in both up-counting and down-counting modes? A: Yes, SN74LS169BNG4 can be used in both up-counting and down-counting modes by controlling the state of the up/down input.

  9. Q: What is the maximum count value for SN74LS169BNG4? A: The maximum count value for SN74LS169BNG4 is 15 (1111 in binary).

  10. Q: Can SN74LS169BNG4 be used in applications requiring synchronous operation? A: Yes, SN74LS169BNG4 is designed for synchronous operation, ensuring that all outputs change simultaneously with the clock signal.

Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.