HCS200/P

Product Overview

Category: Integrated Circuits (ICs)

Use: The HCS200/P is a versatile integrated circuit primarily used for remote keyless entry (RKE) systems in automotive applications. It provides secure and reliable wireless communication between the key fob and the vehicle, allowing users to conveniently lock/unlock doors, open trunks, and activate panic alarms.

Characteristics: - Compact size and low power consumption - High sensitivity and long-range transmission capabilities - Robust security features to prevent unauthorized access - Easy integration with existing RKE systems - Wide operating temperature range (-40°C to +85°C)

Package: The HCS200/P is available in a small surface-mount package, making it suitable for space-constrained applications. It is typically supplied in tape and reel packaging.

Essence: The essence of the HCS200/P lies in its ability to provide a secure and reliable wireless link between the key fob and the vehicle, ensuring seamless operation of the remote keyless entry system.

Packaging/Quantity: The HCS200/P is commonly packaged in reels containing 2,500 units per reel.

Specifications

• Operating Frequency: 315 MHz or 433.92 MHz
• Supply Voltage: 2.2V to 5.5V
• Current Consumption:
  • Active Mode: 10 mA (transmitting), 7 mA (receiving)
  • Standby Mode: 1 μA
• Modulation: Amplitude Shift Keying (ASK)
• Data Rate: Up to 10 kbps
• Encryption: Rolling code encryption for enhanced security
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The HCS200/P has a total of 8 pins, each serving a specific function:

1. VDD: Supply voltage input
2. GND: Ground reference
3. DATA: Data input/output pin for communication with the key fob
4. ANT: Antenna connection for wireless transmission/reception
5. OSC1: Oscillator input
6. OSC2: Oscillator output
7. NC: No connection (reserved for future use)
8. VDDA: Analog supply voltage input

Functional Features

• Secure and reliable wireless communication between key fob and vehicle
• Rolling code encryption prevents unauthorized access
• Low power consumption for extended battery life
• Long-range transmission capabilities ensure reliable operation even at a distance
• Easy integration with existing RKE systems through standard interfaces
• Robust performance in extreme temperature conditions

Advantages and Disadvantages

Advantages: - Enhanced security features protect against hacking attempts - Compact size allows for flexible installation in various automotive applications - Wide operating temperature range ensures reliability in harsh environments - Easy integration with existing RKE systems simplifies implementation

Disadvantages: - Limited data rate compared to some other wireless communication technologies - Requires additional components (key fob, antenna) for complete system functionality - Sensitive to electromagnetic interference in certain environments

Working Principles

The HCS200/P operates based on the principle of amplitude shift keying (ASK) modulation. It uses a rolling code encryption algorithm to ensure secure communication between the key fob and the vehicle. When a button is pressed on the key fob, the HCS200/P transmits a unique encrypted code to the vehicle's receiver. The receiver decrypts the code and verifies its authenticity before executing the corresponding action (e.g., unlocking doors). This rolling code mechanism prevents replay attacks and enhances the overall security of the system.

Detailed Application Field Plans

The HCS200/P is primarily designed for use in automotive remote keyless entry systems. It can be integrated into various vehicle models, including cars, trucks, and motorcycles. Additionally, it finds applications in other areas where secure wireless communication is required, such as home security systems, industrial automation, and access control systems.

Detailed and Complete Alternative Models

1. HCS301: Similar to the HCS200/P, but with extended data rate capabilities (up to 20 kbps).
2. HCS301A: An enhanced version of the HCS301, featuring improved security features and lower power consumption.
3. HCS500: A higher-end alternative with advanced encryption algorithms and increased operating frequency options.

These alternative models offer varying features and specifications to cater to different application requirements within the field of remote keyless entry systems and related industries.

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