Overview
The NXP PCF7936AA/3851/C/6 is a highly integrated transponder IC designed for advanced vehicle access and immobilizer systems. This single-chip solution provides a comprehensive remote keyless entry functionality without the need for an external battery, ensuring full operation even when the vehicle's battery is low. It is ideal for modern vehicle security applications, offering a cost-effective and compact solution for key designs.
Key Specifications
| Attribute | Specification |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCF7936AA/3851/C/6 |
| Frequency Range | 315 MHz to 434 MHz |
| RFID IC Type | Read, Write |
| Supply Voltage | 2.1 V to 3.6 V |
| Programmable Memory | 512 bytes of EEPROM, 16 Kbytes of E-ROM, 192 bytes of RAM |
| RF IC Case Style | Die |
| Moisture Sensitivity Level | 1 |
| SVHC | No SVHC (as of 27-Jun-2024) |
Key Features
- Single-chip security transponder and keyless entry solution with on-chip UHF transmitter.
- Low-power RISC programmable device operation.
- On-chip, PLL-based UHF transmitter (315 MHz to 434 MHz).
- Programmable ASK/FSK modulation characteristics.
- Up to seven command button inputs.
- On-chip memory: 16 Kbytes of E-ROM, 512 bytes of EEPROM, 192 bytes of RAM.
- Single lithium cell operation (2.1 V to 3.6 V).
- Highly integrated for minimum board space and low bill of materials.
- Low power consumption.
Applications
The NXP PCF7936AA/3851/C/6 is primarily used in advanced vehicle access and immobilizer systems. It is suitable for:
- Remote keyless entry systems.
- Vehicle immobilizers.
- Other high-security applications requiring compact and cost-effective solutions.
Q & A
- What is the primary function of the NXP PCF7936AA/3851/C/6?
The primary function is to provide a fully integrated remote keyless entry and immobilizer solution for vehicles.
- What is the frequency range of the PCF7936AA/3851/C/6?
The frequency range is from 315 MHz to 434 MHz.
- What type of memory does the PCF7936AA/3851/C/6 have?
The device has 16 Kbytes of E-ROM, 512 bytes of EEPROM, and 192 bytes of RAM.
- What is the supply voltage range for the PCF7936AA/3851/C/6?
The supply voltage range is from 2.1 V to 3.6 V.
- Does the PCF7936AA/3851/C/6 require an external battery?
No, it does not require an external battery as it operates using the vehicle's battery.
- What is the moisture sensitivity level of the PCF7936AA/3851/C/6?
The moisture sensitivity level is 1.
- Is the PCF7936AA/3851/C/6 RoHS compliant?
Yes, the device is RoHS compliant.
- What are the key features of the on-chip UHF transmitter?
The on-chip UHF transmitter is PLL-based and supports programmable ASK/FSK modulation characteristics.
- How many command button inputs does the PCF7936AA/3851/C/6 support?
It supports up to seven command button inputs.
- What are the typical applications of the PCF7936AA/3851/C/6?
Typical applications include remote keyless entry systems and vehicle immobilizers.
