SN74AS286DR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Function
• Characteristics: High-speed, Low-power, 9-bit Parity Generator/Checker
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Performs parity generation and checking operations on 9-bit data
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Input Current: ±10mA
• Output Current: ±20mA
• Propagation Delay: 8ns (typical)

Detailed Pin Configuration

The SN74AS286DR has a total of 16 pins, which are assigned as follows:

1. GND (Ground)
2. A0 (Input)
3. A1 (Input)
4. A2 (Input)
5. A3 (Input)
6. A4 (Input)
7. A5 (Input)
8. A6 (Input)
9. A7 (Input)
10. A8 (Input)
11. P (Output)
12. C (Output)
13. G2A (Input)
14. G2B (Input)
15. VCC (Power)
16. GND (Ground)

Functional Features

• Generates odd or even parity for 9-bit input data
• Checks the parity of 9-bit input data
• Provides outputs for parity bit (P) and carry-out (C)
• Supports both active-high and active-low enable inputs (G2A and G2B)

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - Compact SOIC package - Wide operating temperature range

Disadvantages: - Limited to 9-bit parity generation/checking - Requires external enable inputs for operation

Working Principles

The SN74AS286DR is a combinational logic circuit that performs parity generation and checking operations. It uses exclusive-OR (XOR) gates to calculate the parity bit and carry-out based on the input data. The enable inputs (G2A and G2B) control the operation of the circuit.

Detailed Application Field Plans

The SN74AS286DR can be used in various applications that require parity generation and checking, such as:

1. Data transmission systems
2. Error detection and correction circuits
3. Memory systems
4. Communication protocols
5. Network devices

Detailed and Complete Alternative Models

1. SN74LS280: 9-bit Parity Generator/Checker with open-collector outputs
2. SN74HC280: 9-bit Parity Generator/Checker with CMOS technology
3. SN74F280: 9-bit Parity Generator/Checker with faster propagation delay

These alternative models offer similar functionality but may have different characteristics or package options.

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