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MSP430F1232IPWR

Ultra-low-power 16-bit MCU, 8KB Flash, 256B SRAM, 10-bit ADC, USART+I2C, 1uA standby in TSSOP-28

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Pieza del fabricante：

MSP430F1232IPWR

Paquete：

TSSOP-28 (9.70 x 4.40 x 1.00 mm)

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Descripción

Productos

The MSP430F1232IPWR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller in a TSSOP-28 package. It features 8KB Flash, 256B SRAM, a 10-bit ADC with 8 channels, and multiple communication interfaces including USART (SPI/UART) and I2C. The device achieves 200uA/MHz active current and 1uA standby current.

Especificaciones

CPU Core MSP430 16-bit RISC
Maximum Frequency 8MHz
Flash Memory 8 KB
SRAM 256 Bytes
ADC 8-channel x 10-bit (Internal Reference)
Comunicación 1x USART (SPI/UART), 1x I2C
Temporizadores 1x 16-bit (3 capture/compare registers)
Comparator 1
Tensión de alimentación 1.8V ~ 3.6V
Active Current 200uA @ 1MHz, 2.2V
Standby Current 1uA
Off Mode Current 0.1uA
Paquete TSSOP-28 (9.70 x 4.40mm)
Temperatura de funcionamiento -40°C ~ +85°C

Características

  • Ultra-low-power architecture with multiple low-power modes
  • 16-bit RISC CPU optimized for low power and high code efficiency
  • 10-bit ADC with internal reference for single-supply operation
  • Hardware USART supporting both SPI and UART protocols
  • Hardware I2C interface for two-wire communication
  • Instant wakeup from standby mode (under 1us)
  • Bootstrap loader for in-system programming

Aplicaciones

  • Wireless sensor nodes and IoT endpoints
  • Portable medical devices
  • Smart metering and utility monitoring
  • Consumer electronics with battery operation
  • Industrial remote monitoring systems

The MSP430F1232IPWR is a member of the Texas Instruments MSP430 family of ultra-low-power 16-bit mixed-signal microcontrollers. It features 8KB of Flash program memory and 256 bytes of SRAM. The integrated 10-bit ADC with internal voltage reference provides analog input capability without external components. Communication peripherals include a USART supporting SPI and UART modes, and a hardware I2C interface. The MSP430 CPU features a 16-bit RISC architecture with 27 instructions and 16-bit registers, providing high code efficiency. Five low-power modes allow the device to optimize power consumption. The 1uA standby current and sub-microsecond wakeup enable aggressive duty cycling for extended battery life.

The MSP430F1232 operates around a 16-bit RISC CPU core with a Von Neumann architecture. The clock system supports multiple clock sources: a high-frequency DCO up to 8MHz for active processing, a 32kHz watch crystal for timekeeping, and a very-low-frequency VLO (~12kHz) for low-power modes. The power management module controls transitions between active, standby (LPM3), and off (LPM4) modes. In standby mode, the CPU and DCO are halted while the 32kHz crystal continues. The ADC uses a 10-bit successive approximation architecture. The timer_A module provides capture/compare functionality for PWM generation and pulse measurement.

Pin Nombre Función
1 TEST/SBWTCK Test/Bootstrap loader clock
2 VCC Supply voltage (1.8V-3.6V)
3 P1.0/TACLK GPIO/Timer clock input
4-6 P1.1-P1.3 GPIO/Timer capture/compare
7-10 P1.4-P1.7 GPIO/Timer/SMCLK
11-16 P2.0-P2.5 GPIO/UART/Crystal
17-20 P3.0-P3.3 GPIO/USART/SPI/I2C
21-22 P3.4-P3.5 GPIO/ADC
23-26 P4.0-P4.3 GPIO/Timer
27 DVSS Suelo digital
28 RST/NMI Reset / Non-maskable interrupt
  • Nodo sensor inalámbrico: 1uA standby with sub-us wakeup enables sub-10uA average current on coin cells
  • Portable Glucometer: 10-bit ADC measures sensor current; 256B SRAM buffers readings; 8KB Flash stores algorithm
  • Smart Water Meter: Low-power pulse counting with I2C display interface; 10-year coin cell operation
  • Thermostat Controller: USART communicates with RF module; ADC reads temperature sensors
Modelo Fabricante Diferencia clave
MSP430F123IPWR TI Same without ADC internal reference
MSP430G2553IPW28 TI 16KB Flash, 512B SRAM, 16MHz, value line
MSP430FR2111IPW14R TI FRAM-based, 1KB, 16MHz, TSSOP-14
SAM L10E14A-MUT Microchip 32MHz Cortex-M22, 800nA standby
EFM32ZG108F32-QFN24 Laboratorios Silicon 24MHz Cortex-M0+, 180nA sleep
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