PCF7991AT/1081/M,1 Overview
The PCF7991AT/1081/M,1 is a high-performance integrated circuit designed for contactless identification and communication applications. It combines a high-frequency (13.56 MHz) transceiver with an advanced protocol controller, enabling efficient data exchange with RFID and proximity cards. This device supports ISO 14443 Type A and B standards, ensuring compatibility with a wide range of contactless systems. Its low power consumption and compact design make it ideal for embedded applications in access control, secure payment systems, and identification tags. The robust communication features and ease of integration position it as a reliable choice for engineers and sourcing specialists requiring consistent, high-quality performance. More details available at IC Manufacturer.
PCF7991AT/1081/M,1 Technical Specifications
| Parameter | Specification |
|---|---|
| Operating Frequency | 13.56 MHz (HF band) |
| Supported Standards | ISO 14443 Type A and B |
| Supply Voltage | 2.7 V to 5.5 V |
| Power Consumption | Low power design, typically < 10 mA in active mode |
| Data Rate | 106 kbit/s (type A and B) |
| Modulation | Amplitude Shift Keying (ASK) modulation and demodulation |
| Interface | Serial Peripheral Interface (SPI) |
| Operating Temperature Range | -40??C to +85??C |
| Package Type | SO16 (Small Outline, 16 pins) |
PCF7991AT/1081/M,1 Key Features
- Integrated HF Transceiver: Enables seamless communication at 13.56 MHz, ensuring reliable data transfer for proximity and RFID applications.
- Dual Protocol Support: Compatible with both ISO 14443 Type A and B standards, providing versatility and broad interoperability in contactless systems.
- Low Power Consumption: Optimized for minimal power use, enhancing battery life in portable devices and reducing overall system power requirements.
- SPI Interface: Facilitates easy integration with microcontrollers and other digital systems, simplifying design and reducing development time.
- Robust Operating Temperature Range: Supports industrial environments with reliable operation from -40??C to +85??C.
- Compact SO16 Package: Minimizes PCB space, enabling compact device designs without sacrificing performance.
PCF7991AT/1081/M,1 Advantages vs Typical Alternatives
The device offers superior integration by combining a high-frequency transceiver and protocol handling in a single chip, reducing the need for additional components. Its dual compliance with ISO 14443 Type A and B standards ensures greater flexibility compared to single-protocol alternatives. Furthermore, low power consumption and a broad operating temperature range enhance its reliability and suitability for diverse industrial applications, making it a preferred choice for engineers focused on efficiency and robust performance.
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Typical Applications
- Contactless access control systems: Enables secure and fast communication between readers and ID cards, suitable for building security and personnel identification.
- Public transportation ticketing: Supports contactless fare collection systems requiring reliable and standardized communication.
- Secure payment terminals: Provides the communication backbone for contactless credit and debit card transactions.
- Identification tags and smart cards: Used in embedded systems requiring compact, energy-efficient contactless interfaces.
PCF7991AT/1081/M,1 Brand Info
This product is part of a well-established portfolio offering high-quality integrated circuits for contactless communication. The PCF7991AT/1081/M,1 embodies the brand??s commitment to delivering reliable, innovative semiconductor solutions designed to meet industrial and commercial requirements. Its combination of protocol flexibility, power efficiency, and ease of integration reflects the brand??s focus on enabling advanced system designs in RFID, security, and identification sectors.
FAQ
What communication standards does the device support?
The device supports ISO 14443 Type A and Type B standards, allowing it to communicate with a wide range of contactless cards and tags used in identification, access control, and payment systems. This dual compatibility ensures flexibility in application design.
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What is the typical power consumption during operation?
It features a low power consumption design, typically drawing less than 10 mA during active communication. This efficiency helps extend battery life in portable or embedded systems where power availability is critical.
How does the SPI interface benefit integration in embedded systems?
The Serial Peripheral Interface (SPI) offers a straightforward, high-speed communication protocol for connecting the device to microcontrollers or processors. This simplifies hardware design and accelerates development cycles by providing a standardized interface for data exchange.
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Can this device operate in harsh environmental conditions?
Yes, it is rated to operate reliably within an industrial temperature range of -40??C to +85??C. This makes it suitable for applications exposed to varying and challenging environmental conditions without compromising performance.
What package type is available, and how does it affect design?
The device comes in a compact SO16 package, which reduces the required PCB footprint and allows for more streamlined designs. This small form factor is advantageous for space-constrained applications, such as portable or embedded contactless systems.
