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MSP430FR2155TDBTR

16-bit ultra-low-power MCU, 32KB FRAM, 4KB SRAM, 12-bit ADC, 142uA/MHz, TSSOP-38

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Manufacturer Part：

MSP430FR2155TDBTR

Package：

TSSOP-38 (0.173", 4.40mm Width)

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Description

Product Overview

The MSP430FR2155TDBTR is a 16-bit ultra-low-power microcontroller from Texas Instruments featuring 32KB FRAM, 4KB SRAM, 12-bit ADC, comparators, and UART/SPI/I2C interfaces in a 38-pin TSSOP package.

Key Specifications

Core MSP430 16-bit RISC
Max Clock Speed 24 MHz
Program Memory 32KB FRAM (non-volatile)
RAM 4KB SRAM
ADC 12-bit, 12-channel, 200 ksps
Comparators 2 enhanced comparators (eCOMP)
Communication 2x UART/IrDA/SPI, 2x SPI/I2C
Supply Voltage 1.8 V to 3.6 V
Active Current 142 µA/MHz
Standby (LPM3) 1.43 µA
Shutdown (LPM4.5) 42 nA
Operating Temperature -40°C to +105°C
Package TSSOP-38 (DBT)

Features

  • FRAM non-volatile memory with 10^15 write cycle endurance
  • Ultra-low power: 142 µA/MHz active, 42 nA shutdown
  • 12-bit ADC with internal shared reference (1.5/2.0/2.5V)
  • Two eCOMP with integrated 6-bit DAC reference
  • Four 16-bit timers with capture/compare
  • 32-bit hardware multiplier (MPY32)
  • Internal 24 MHz DCO with FLL (±1% accuracy)
  • 20KB ROM library with driver libraries and FFT

Applications

  • Smart meters and energy harvesting
  • Portable medical instruments
  • Sensor nodes and IoT endpoints
  • Industrial sensing and control
  • Building automation

The MSP430FR2155 is an ultra-low-power 16-bit microcontroller from Texas Instruments based on the MSP430 RISC architecture with FRAM non-volatile memory. FRAM combines the speed, flexibility, and endurance of SRAM with the non-volatility of Flash, offering 10^15 write cycle endurance and unified memory for program, constants, and data storage. The device features a 12-bit 200 ksps ADC, two enhanced comparators, multiple 16-bit timers, and a 32-bit hardware multiplier. Dual eUSCI_A and eUSCI_B modules provide flexible UART, SPI, and I2C connectivity. The device achieves 142 µA/MHz active current, 1.43 µA LPM3 standby, and 42 nA LPM4.5 shutdown.

The MSP430FR2155 uses a 16-bit Von Neumann architecture with a constant generator that enables 16-bit instructions in a single cycle. The FRAM memory controller manages read/write operations with ECC protection and configurable write protection. The Power Management Module (PMM) with Supply Voltage Supervisor (SVS) ensures reliable operation across the 1.8-3.6V supply range. The clock system integrates a 24 MHz DCO with FLL achieving ±1% accuracy, plus external crystal and internal low-frequency oscillators. The ADC uses a successive approximation architecture with sample-and-hold, while the eCOMP modules feature programmable hysteresis and integrated 6-bit DAC reference voltage generation. Low-power modes progressively disable clock domains and peripheral power to achieve sub-microamp standby and nanoamp shutdown currents.

Pin Group Function Description
P1.0-P1.7 GPIO/Interrupt Port 1 with interrupt capability and multiple peripheral functions
P2.0-P2.7 GPIO/Interrupt Port 2 with interrupt capability and multiple peripheral functions
P3.0-P3.7 GPIO/Interrupt Port 3 with interrupt capability
P4.0-P4.1 GPIO/Interrupt Port 4 with interrupt capability
DVCC/DVSS Power Digital supply and ground
AVCC/AVSS Power Analog supply and ground (ADC reference)
RST/NMI System Reset / non-maskable interrupt
TEST/SBWTDIO Debug JTAG test / Spy-Bi-Wire data
  • Smart Meters: FRAM endurance supports frequent data logging without wear; ultra-low standby extends battery life to 10+ years
  • Portable Medical: 142 µA/MHz active power and instant FRAM wake-up enable long battery life in glucose monitors and pulse oximeters
  • IoT Sensor Nodes: Integrated 12-bit ADC, comparators, and multiple serial interfaces in a single chip for sensor fusion
  • Industrial Control: -40°C to +105°C operation with FRAM data retention during power loss
  • Building Automation: Low-power modes and RTC enable always-on monitoring with minimal power budget
Model Manufacturer Key Difference
MSP430FR2355TDBTR TI With 4 Smart Analog Combo (SAC) op-amps
MSP430FR2153TDBTR TI 16KB FRAM, 2KB SRAM (reduced memory)
MSP430FR2155TPTR TI 48-pin LQFP package version
MSP430FR2433IRGER TI 16KB FRAM, 4KB SRAM, 24-VQFN
MSP430FR2633IRHBR TI CapTIvate touch, 32-pin VQFN
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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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