1.1 Features

• ISO/IEC 15693, ISO/IEC 18000-3 (Mode 1) Compliant RF Interface
• Power Supply System With Either Battery or 13.56-MHz H-Field Supply
• 14-Bit Sigma-Delta Analog-to-Digital Converter (ADC)
• Internal Temperature Sensor
• Resistive Sensor Bias Interface
• CRC16 CCITT Generator
• MSP430™ Mixed-Signal Microcontroller
  • 2KB of FRAM
  • 4KB of SRAM
  • 8KB of ROM
  • Supply Voltage Range: 1.45 V to 1.65 V
  • Low Power Consumption
    • Active Mode (AM): 140 µA/MHz (1.5 V)
    • Standby Mode (LPM3): 16 µA
  • 16-Bit RISC Architecture
  • Up to 2-MHz CPU System Clock
  • Compact Clock System
    • 4-MHz High-Frequency Clock
    • 256-kHz Internal Low-Frequency Clock Source
    • External Clock Input
  • 16-Bit Timer_A With Three Capture/Compare Registers
  • LV Port Logic
    • V_OL Lower Than 0.15 V at 400 µA
    • V_OH Higher Than (V_DDB – 0.15 V) at 400 µA
    • Timer_A PWM Signal Available on All Ports
  • eUSCI_B Module Supports 3-Wire and 4-Wire SPI and I²C
  • 32-Bit Watchdog Timer (WDT_A)
  • ROM Development Mode (Map ROM Addresses to SRAM to Enable Firmware Development)
  • Full 4-Wire JTAG Debug Interface
• For Complete Module Descriptions, See the RF430FRL15xH Family Technical Reference Manual (SLAU506)
• For Application Operation and Programming, See the RF430FRL15xH Firmware User's Guide (SLAU603)

1.2 Applications

• Industrial Wireless Sensors
• Medical Wireless Sensors

1.3 Description

The RF430FRL15xH device is a 13.56-MHz transponder chip with a programmable 16-bit MSP430™ low-power microcontroller. The device features embedded universal FRAM nonvolatile memory for storage of program code or user data such as calibration and measurement data. The RF430FRL15xH supports communication, parameter setting, and configuration through the ISO/IEC 15693, ISO/IEC 18000-3 compliant RFID interface and the SPI or I²C interface. Sensor measurements are supported by the internal temperature sensor and the onboard 14-bit sigma-delta analog-to-digital converter (ADC), and digital sensors can be connected through SPI or I²C.

The RF430FRL15xH device is optimized for operation in fully passive (battery-less) or single-cell battery-powered (semi-active) mode to achieve extended battery life in portable and wireless sensing applications. FRAM is a nonvolatile memory that combines the speed, flexibility, and endurance of SRAM with the stability and reliability of flash, all at lower total power consumption.

1.4 Functional Block Diagram

Figure 1-1 shows the block diagram of the RF430FRL15xH device.

Figure 1-1 Functional Block Diagram