Texas Instruments CC430F5137IRGZR

Overview

CC430F5137IRGZR 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, 32 KB flash, 4 KB RAM, 12-bit ADC with six external inputs plus internal temperature/battery sensors, two 16-bit timers, AES-128 security accelerator, and dual USCI modules (UART/IrDA/SPI + I²C/SPI). It targets battery-powered wireless sensor nodes in AMR/AMI metering and smart grid endpoints.

For engineers reviewing the CC430F5137IRGZR datasheet, CC430F5137IRGZR pinout, CC430F5137IRGZR application, or CC430F5137IRGZR equivalent, key selection criteria include its 48-pin VQFN package, 1.8–3.6 V supply range, 2.0 µA LPM3 standby current, −117 dBm RX sensitivity at 0.6 kBaud, and integrated RF/analog/digital subsystems enabling single-chip wireless node design without external transceiver or security co-processor.

Technical Context

The CC430F5137IRGZR implements a tightly coupled SoC architecture where the MSP430 CPUXV2 core directly controls the CC1101-derived RF transceiver via dedicated packet handler and digital RSSI/CCA logic. Its unified clock system uses FLL-based SMCLK generation and independent RF crystal oscillator (RF_XIN/RF_XOUT) for precise frequency synthesis across 300–928 MHz bands.

Peripherals are optimized for low-power sensing: the 12-bit ADC supports autoscan of six external channels plus internal sensors; USCI_A0 handles UART/IrDA/SPI for host interface; USCI_B0 provides I²C/SPI for sensor bus connectivity; RTC_A enables time-stamped wake-up; and the 3-channel DMA reduces CPU load during RF packet transfers and ADC sampling.

Key Specifications

Pinout & Package

CC430F5137IRGZR is housed in a 48-pin VQFN (RGZ) package measuring 7 mm × 7 mm with exposed thermal pad. Pin functions follow TI's default mapping per Figure 4-3 and Table 4-2 of SLAS554I.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CC430F5135IRGZR, the CC430F5137IRGZR provides double flash/RAM for feature-rich firmware and data buffering; compared with CC430F6137IRGC, it trades LCD capability and two ADC inputs for smaller footprint and lower power in non-display applications.

Availability

CC430F5137IRGZR 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 availability.

Supply support for CC430F5137IRGZR 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 specializing in analog, embedded processing, and connectivity technologies with decades of expertise in ultra-low-power microcontrollers and RF solutions.

The CC430 family was designed specifically for battery-operated wireless sensing endpoints in utility, building automation, and industrial IoT - integrating RF, security, and mixed-signal peripherals into a single MSP430-based SoC platform.

FAQ

What is the maximum RF output power supported by the CC430F5137IRGZR?

The CC430F5137IRGZR supports programmable RF output power up to +12 dBm across all supported frequency bands (300–348 MHz, 389–464 MHz, 779–928 MHz). This value is specified in the device's electrical characteristics table under "Output Power" and enables reliable link budgets in challenging RF environments such as concrete-walled utility meter pits.

Does the CC430F5137IRGZR include an integrated crystal oscillator for the RF section?

Yes, the CC430F5137IRGZR includes dedicated RF crystal oscillator terminals (RF_XIN and RF_XOUT) that support connection of a 26 MHz fundamental-mode crystal. This oscillator feeds the RF PLL and is essential for achieving the frequency accuracy required for FCC Part 15 and EN 300 220 compliance.

How many analog input channels does the 12-bit ADC in the CC430F5137IRGZR support?

The CC430F5137IRGZR's 12-bit ADC supports six external analog input channels plus two internal channels (temperature sensor and supply voltage monitor), totaling eight configurable inputs. This is confirmed in the Device Comparison table (Table 3-1) and Section 1.3 of SLAS554I.

Is the CC430F5137IRGZR pin-compatible with other devices in the CC430F513x series?

Yes, the CC430F5137IRGZR shares the same 48-pin VQFN (RGZ) package and pinout with CC430F5135IRGZR and CC430F5133IRGZR. All three devices use identical terminal configurations and default function mappings per Figure 4-3 and Table 4-2 of the datasheet.

What low-power modes are available on the CC430F5137IRGZR and what is the current draw in each?

The CC430F5137IRGZR supports five low-power modes: LPM0–LPM4. Key values include CPU Active Mode (AM) at 160 µA/MHz, LPM3 (RTC active) at 2.0 µA, and LPM4 (RAM retention only) at 1.0 µA. These figures are measured at 3 V and 25°C per Section 5.48 of SLAS554I and define baseline power for battery-life calculations.