SN74ALS169BD

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Counter
• Characteristics: High-speed, synchronous, 4-bit binary counter
• Package: DIP-16 (Dual In-Line Package with 16 pins)
• Essence: The SN74ALS169BD is a versatile digital counter IC that can be used in various applications requiring counting functionality.
• Packaging/Quantity: Available in tubes of 25 units or reels of 2,000 units.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 55 MHz
• Number of Counting Stages: 4
• Output Type: TTL (Transistor-Transistor Logic) compatible

Detailed Pin Configuration

The SN74ALS169BD has 16 pins arranged as follows:

1. CLK (Clock Input)
2. P0 (Parallel Data Input Bit 0)
3. P1 (Parallel Data Input Bit 1)
4. P2 (Parallel Data Input Bit 2)
5. P3 (Parallel Data Input Bit 3)
6. MR (Master Reset Input)
7. TC (Terminal Count Output)
8. Q0 (Serial Data Output Bit 0)
9. Q1 (Serial Data Output Bit 1)
10. Q2 (Serial Data Output Bit 2)
11. Q3 (Serial Data Output Bit 3)
12. GND (Ground)
13. QD (Serial Data Output Enable)
14. VCC (Positive Power Supply)
15. CE (Count Enable Input)
16. CP (Clock Pulse Input)

Functional Features

• Synchronous operation allows for precise control and synchronization of the counting process.
• Parallel data inputs (P0-P3) enable presetting the initial count value.
• Master Reset (MR) input allows for resetting the counter to its initial state.
• Terminal Count (TC) output indicates when the counter reaches its maximum count value.
• Serial Data Output (Q0-Q3) provides the current count value in serial format.
• Serial Data Output Enable (QD) controls the availability of the serial data output.
• Count Enable (CE) input enables or disables the counting process.
• Clock Pulse (CP) input triggers the counting process.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient counting in time-critical applications. - Synchronous operation ensures accurate and synchronized counting. - Versatile functionality makes it suitable for various counting applications. - TTL compatibility simplifies integration with other digital circuits.

Disadvantages: - Limited number of counting stages (4) may not be sufficient for certain complex applications. - Requires an external clock source for proper operation.

Working Principles

The SN74ALS169BD operates as a synchronous 4-bit binary counter. It counts up or down based on the clock pulses received at the CP input. The count value can be preset using the parallel data inputs (P0-P3). The counter can be reset to its initial state using the master reset (MR) input. The terminal count (TC) output indicates when the counter reaches its maximum count value. The current count value is available at the serial data outputs (Q0-Q3).

Detailed Application Field Plans

The SN74ALS169BD can be used in various applications, including but not limited to:

1. Digital frequency counters
2. Industrial automation systems
3. Electronic test equipment
4. Communication devices
5. Automotive electronics
6. Robotics and control systems

Detailed and Complete Alternative Models

1. CD74HC163E - 4-bit Synchronous Binary Counter
2. SN74LS169AN - Synchronous 4-Bit Up/Down Binary Counter
3. CD40193BE - Presettable 4-Bit Binary Up/Down Counter

These alternative models offer similar functionality and can be used as substitutes for the SN74ALS169BD in different applications.

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