琻捷SNP739 双轴胎压监测芯片

特点

压力传感器，可选测量范围：900kPa/1500kPa

温度和电源电压传感器

带校准的XZ轴加速度计

带两个外部I/O输入的12位模数转换器（ADC12）

射频发射机

片上PA

支持315/433MHz

支持ASK/FSK调制

支持曼彻斯特/PWM/Bi-Phase/Mark-space编码

低频接收

支持LF编程

支持3.9kbps/6.5kbps

曼彻斯特编码

支持载波或报文唤醒

支持轮胎自动定位（WAM）

片上RC振荡器

4kHz/39kHz/2MHz

8位MCU

基于8051核

16K字节闪存

256字节数据RAM和128字节保留RAM

6个GPIO，所有GPIO都支持低功耗唤醒

支持SPI/UART/I2C接口

静态电流0.25uA

封装：LGA 24脚 6.0mm x 5.0mm x 1.9mm

Features

Calibrated pressure sensor for absolute pressure measurement with optional measurement range：900kPa/1500kPa

Temperature and supply voltage sensors

XZ-axis accelerometer with calibration

12-bit analog-to-digital converter (ADC12) with two external I/O inputs

RF Transmitter

On chip PA

315/433MHz supported

Support ASK/FSK modulation

Support Manchester/PWM/Bi-Phase/Mark-space encoding

LF Receiver

Support LF programming

3.9kbps/6.5kbps supported

Manchester encoding

Carrier or telegram wakeup supported

Support Wheel Auto Mapping(WAM)

On chip RC oscillator

4kHz/39kHz/2MHz

8-bit MCU

Based on 8051 core

16K Bytes Flash

256 Bytes data RAM and 128 Bytes retention RAM

6 GPIOs, all GPIOs support low power wakeup

SPI/UART/I2C interface supported

Standby current 0.25uA

Package: LGA 24pins. 6.0mm x 5.0mm x 1.9mm