Texas Instruments CC430F5135IRGZT

Overview

CC430F5135IRGZT from Texas Instruments is an ultra-low-power System-on-Chip (SoC) microcontroller integrating a sub-1 GHz RF transceiver core (CC1101), 16-bit MSP430 CPUXV2, 16 KB flash, 2 KB RAM, 12-bit ADC with six external inputs plus internal temperature/battery sensors, two 16-bit timers, USCI_A0 (UART/IrDA/SPI) and USCI_B0 (I²C/SPI), AES-128 security accelerator, and up to 30 I/O pins - deployed in wireless sensor nodes for AMR/AMI metering and smart grid endpoints.

For engineers reviewing the CC430F5135IRGZT datasheet, CC430F5135IRGZT pinout, CC430F5135IRGZT application, or CC430F5135IRGZT equivalent, key selection criteria include RF frequency band support (300–348 MHz / 389–464 MHz / 779–928 MHz), programmable data rate (0.6–500 kBaud), RX sensitivity (–117 dBm @ 0.6 kBaud), +12 dBm TX output power, and integrated LDO/SVS/Brownout power management for battery-operated systems.

Technical Context

The CC430F5135IRGZT implements a tightly coupled SoC architecture where the MSP430 CPUXV2 core interfaces directly with the CC1101-derived RF transceiver via dedicated packet handler and digital RSSI/CCA logic - enabling autonomous radio operations without CPU intervention. Its unified clock system uses an FLL with internal reference and supports multiple crystal sources (XT1 for LF, RF_XIN for RF oscillator).

Power management includes five low-power modes (LPM0–LPM4), with wake-up from LPM3 (RTC mode) in under 6 µs and ultra-low standby current of 2.0 µA. The RF subsystem supports 2-FSK, 2-GFSK, MSK, OOK, and flexible ASK shaping, with on-chip sync word detection, address check, CRC handling, and automatic clear channel assessment.

Key Specifications

Pinout & Package

VQFN-48 package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad; pin-compatible with other CC430F513x devices in RGZ variant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar wireless SoC applications.

Compared with CC430F5137IRGZT, the CC430F5135IRGZT trades memory headroom for lower unit cost while retaining identical RF performance and peripheral feature set; versus CC1310F128RGZT, it delivers lower system-level BoM cost and simpler migration from existing MSP430-based designs but lacks ARM ecosystem tooling and advanced RF features like concurrent multi-band operation.

Availability

CC430F5135IRGZT is available at Aetrix Electronics and suitable for smart utility metering, wireless sensor networks, thermostatic control systems, and heat cost allocators requiring stable component supply and long-term industrial lifecycle support.

Supply support for CC430F5135IRGZT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions with deep expertise in low-power design and RF integration.

The CC430 family was engineered specifically for ultra-low-power wireless sensing applications - combining MSP430 MCU efficiency with CC1101 RF performance to enable decade-long battery life in certified metering and industrial telemetry endpoints.

FAQ

What is the maximum output power supported by the CC430F5135IRGZT RF transceiver?

The CC430F5135IRGZT RF transceiver supports programmable output power up to +12 dBm across all supported frequency bands (300–348 MHz, 389–464 MHz, and 779–928 MHz). This level is achieved using the integrated power amplifier and is configurable via register settings in the RF core - enabling optimization for range versus battery life in applications such as AMR endpoints and smart grid sensors.

Does the CC430F5135IRGZT include an integrated ADC, and what are its input capabilities?

Yes, the CC430F5135IRGZT includes a 12-bit successive approximation register (SAR) ADC with six external analog input channels (A0–A5), plus internal temperature and battery voltage sensors. It supports sample-and-hold, autoscan mode, and internal reference - allowing direct digitization of analog sensor outputs (e.g., thermistors, pressure bridges) without external signal conditioning circuitry.

How does the CC430F5135IRGZT achieve ultra-low power consumption in standby mode?

The CC430F5135IRGZT achieves 2.0 µA standby current (LPM3 with RTC active) through hardware-level power gating, optimized leakage control in the MSP430 CPUXV2 core, and selective clock disabling. The integrated low-dropout regulator (LDO), supply voltage supervisor (SVS), and brownout reset (BOR) ensure stable operation down to 1.8 V while minimizing quiescent current - critical for multi-year battery life in wireless sensor deployments.

Is the CC430F5135IRGZT pin-compatible with other devices in the CC430F513x family?

Yes, the CC430F5135IRGZT is pin-compatible with other CC430F513x variants (e.g., CC430F5137IRGZT and CC430F5133IRGZT) in the 48-pin VQFN (RGZ) package. They share identical pin assignments, electrical characteristics, and peripheral mappings - enabling hardware reuse and firmware scalability across memory variants without PCB redesign.

What RF standards and certifications does the CC430F5135IRGZT support out of the box?

The CC430F5135IRGZT RF subsystem is designed to support compliance with FCC CFR Part 15 (USA) and EN 300 220 (Europe) for license-free sub-1 GHz operation, as well as the Wireless M-Bus standard EN 13757‑4:2005 for utility metering. These capabilities are enabled by its CC1101-derived transceiver architecture, programmable modulation schemes (2-FSK, GFSK, MSK), and integrated packet handling - though final certification requires system-level testing with approved antennas and filters.