Texas Instruments CC1310F128RSMT

Overview

CC1310F128RSMT from Texas Instruments is an ultra-low-power Sub-1 GHz wireless microcontroller integrating a 48-MHz Arm® Cortex®-M3 CPU, 128KB flash, 20KB SRAM, and a dedicated Cortex®-M0 radio controller. It supports IEEE 802.15.4g, Wireless M-Bus, and proprietary protocols, with RF sensitivity of –124 dBm (long-range mode) and TX power up to +15 dBm. It enables battery-operated sensor nodes in smart metering and industrial monitoring.

For engineers reviewing the CC1310F128RSMT datasheet, CC1310F128RSMT pinout, CC1310F128RSMT application, or CC1310F128RSMT equivalent, key selection considerations include its 4-mm × 4-mm RSM VQFN32 package with 10 GPIOs, integrated DC/DC converter, autonomous sensor controller, and compliance with ETSI EN 300 220, FCC Part 15, and ARIB STD-T108.

Technical Context

The CC1310F128RSMT implements a dual-core architecture: the main Cortex®-M3 executes application firmware and TI-RTOS, while the dedicated Cortex®-M0 radio controller offloads low-level RF protocol handling from ROM/RAM. Its RF subsystem includes a fully integrated transceiver with single-ended or differential RF interface, digital PLL, and programmable output power.

Power management leverages multiple low-power modes-standby (0.7 µA with RTC and RAM retention) and shutdown (185 nA)-enabled by on-chip voltage domains (VDDR_RF, VDDR, VDDS_DCDC) and a configurable sensor controller that autonomously samples analog sensors at sub-µA average current.

Key Specifications

Pinout & Package

CC1310F128RSMT uses a 4-mm × 4-mm RSM VQFN32 package with 0.4-mm pitch and exposed ground pad (EGP). This compact RoHS-compliant package supports space-constrained IoT endpoints requiring minimal PCB footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Sub-1 GHz wireless MCU applications.

Compared with CC1310F128RSMT, CC1312R1F3 offers greater memory and sensitivity but demands more board area and cost; CC1352P1F3 adds 2.4 GHz connectivity and higher output power at the expense of increased power consumption and package complexity-neither is drop-in compatible.

Availability

CC1310F128RSMT is available at Aetrix Electronics and suitable for smart metering, industrial sensor networks, home automation, and wireless security systems requiring stable component supply and long-term lifecycle support.

Supply support for CC1310F128RSMT 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 and embedded processing solutions with emphasis on low-power, reliability, and broad ecosystem support.

The CC1310F128RSMT belongs to the SimpleLink™ Sub-1 GHz wireless MCU product line, designed specifically for ultra-low-power, long-range IoT endpoints in utility, industrial, and building automation markets.

FAQ

What is the package type and pin count of the CC1310F128RSMT?

The CC1310F128RSMT uses a 4-mm × 4-mm RSM VQFN32 package with 32 terminals, including 10 configurable GPIOs (DIO_0 through DIO_9), two RF I/O pins (RF_P/RF_N), and dedicated power/ground/clock signals. The exposed ground pad (EGP) is essential for thermal and electrical performance.

Does the CC1310F128RSMT support over-the-air (OTA) firmware updates?

Yes, the CC1310F128RSMT supports secure over-the-air updates via its integrated bootloader and AES-128 encryption engine. OTA functionality is enabled through TI's SimpleLink SDK and requires proper partitioning of flash memory-CC1310F128RSMT reserves space for dual-bank or seamless update schemes.

What RF standards does the CC1310F128RSMT natively support?

The CC1310F128RSMT natively supports IEEE 802.15.4g PHY, Wireless M-Bus (EN 13757-4), and proprietary Sub-1 GHz protocols. Its RF core complies with ETSI EN 300 220, FCC CFR47 Part 15, and ARIB STD-T108-enabling global deployment without hardware changes.

How does the sensor controller in the CC1310F128RSMT reduce system power consumption?

The CC1310F128RSMT's autonomous sensor controller operates independently of the main Cortex®-M3, sampling analog sensors (e.g., 12-bit ADC) at ultra-low current (0.95 µA avg for 1 sample/sec). This allows the main CPU to remain in deep sleep, significantly lowering total system power in duty-cycled sensor applications.

Is an external crystal required for the CC1310F128RSMT to operate?

Yes, the CC1310F128RSMT requires two external crystals: a 24-MHz crystal on X24M_P/X24M_N for system clock generation and a 32.768-kHz crystal on X32K_Q1/X32K_Q2 for real-time clock and low-power timer functions. Both are mandatory for full functionality and low-power mode operation.