Texas Instruments MSP430F1610IRTDR

Overview

MSP430F1610IRTDR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 32KB+256B flash memory, 5KB RAM, dual 12-bit DACs, a 12-bit ADC with internal reference and autoscan, two 16-bit timers (Timer_A3 and Timer_B7), three-channel DMA, and dual USARTs supporting UART/SPI/I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems and portable instrumentation.

For engineers reviewing the MSP430F1610IRTDR datasheet, MSP430F1610IRTDR pinout, MSP430F1610IRTDR application, or MSP430F1610IRTDR equivalent, key selection criteria include its 5KB RAM for large C-stack applications, 64-pin QFN (RTD) package with 48 I/O pins, extended RAM addressing capability, and dual-serial interface support for multi-protocol connectivity in space-constrained designs.

Technical Context

The MSP430F1610IRTDR implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its architecture integrates a digitally controlled oscillator (DCO) that supports wake-up from LPM4 in under 6 μs, and supports five low-power modes optimized for extended battery life in portable measurement systems.

It features two independent USART modules: USART0 supports UART, SPI, and I²C modes; USART1 supports UART and SPI only. The device includes a hardware multiplier (MPY/MPYS/MAC/MACS), SVS with programmable level detection, brownout detection, and JTAG-based debugging via Embedded Emulation Module (EEM).

Key Specifications

Pinout & Package

Package: 64-pin QFN (RTD), 9 mm × 9 mm, 0.5 mm pitch, exposed thermal pad connected to DVSS.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar mixed-signal microcontroller applications.

Compared with MSP430F1610IRTDR, the MSP430F1611IRTDR offers double the RAM for data-intensive tasks without altering footprint, while the MSP430F169IPM trades RAM flexibility for maximum flash capacity in through-hole-compatible packaging - enabling scalable firmware development across product tiers.

Availability

MSP430F1610IRTDR is available at Aetrix Electronics and suitable for portable instrumentation, industrial process monitoring, and medical wearable designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant QFN packaging.

Supply support for MSP430F1610IRTDR 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 digital signal processing technologies, with decades of expertise in low-power microcontroller innovation.

The MSP430F161x product line was designed specifically for ultralow-power mixed-signal applications demanding high analog integration, extended battery life, and deterministic real-time performance - especially in sensor-based portable and industrial systems.

FAQ

What is the maximum operating frequency of the MSP430F1610IRTDR?

The MSP430F1610IRTDR does not specify a maximum system clock frequency in its datasheet; instead, it guarantees full functionality across its 1.8 V to 3.6 V supply range with a 125-ns instruction cycle time - implying reliable operation up to at least 8 MHz. Actual achievable frequency depends on supply voltage and temperature, and the DCO can be calibrated to meet application-specific timing requirements without external crystal dependency. The MSP430F1610IRTDR supports both internal DCO and external crystals (XT1/XT2) for clock sources.

Does the MSP430F1610IRTDR support I²C communication?

Yes, the MSP430F1610IRTDR supports I²C communication exclusively through USART0, which can be configured in I²C mode using pins P3.1 (SDA) and P3.3 (SCL). USART1 does not support I²C. The I²C interface includes standard start/stop condition generation, address matching, and interrupt-driven data transfer - confirmed in the functional block diagram and terminal functions table for MSP430F161x devices. This capability enables direct connection to I²C sensors and EEPROMs without external level shifters.

How many I/O pins does the MSP430F1610IRTDR provide?

The MSP430F1610IRTDR provides 48 general-purpose I/O pins across Ports P1–P6, as explicitly stated in the device description and confirmed by the pin designation diagrams for MSP430F161x. All 48 pins support interrupt capability, and most are multiplexed with peripheral functions including ADC inputs, timer capture/compare, USART signals, and DAC outputs. The 64-pin QFN (RTD) package allocates dedicated power, ground, crystal, and JTAG pins outside this I/O count.

What is the purpose of the extended RAM addressing feature in the MSP430F1610IRTDR?

The extended RAM addressing in the MSP430F1610IRTDR provides 3KB of non-mirrored RAM space (01900h–024FFh) in addition to 2KB of mirrored RAM (01100h–018FFh), enabling flat memory access for large data structures without bank switching. This design eliminates software overhead in C applications requiring >2KB of contiguous RAM - such as buffering multiple ADC channels, implementing TCP/IP stacks, or storing calibration tables. The MSP430F1610IRTDR's 5KB total RAM is explicitly allocated across these regions in the memory organization table.

Can the MSP430F1610IRTDR perform simultaneous ADC and DAC operations?

Yes, the MSP430F1610IRTDR supports concurrent ADC and DAC operation: its 12-bit ADC and dual 12-bit DACs operate independently and can be triggered synchronously via Timer_B or asynchronously via software. The ADC12CLK pin (P2.6) can serve as a DMA trigger, allowing automatic data transfer from ADC results to memory while DAC outputs are updated via separate registers - enabling real-time closed-loop control loops without CPU intervention. This capability is documented in the functional block diagram and terminal functions table.