msp430f5438.pdf
| FEATURES | |
| Low Supply Voltage Range: 2.2 V to 3.6 V " | 16-Bit Timer TA0 Timer_A With Five " |
| Ultralow Power Consumption " | Capture/Compare Registers |
| � Active Mode (AM): All System Clocks Active | 16-Bit Timer TA1 Timer_A With Three Capture/Compare Registers " |
| 312 μA/MHz at 8 MHz, 3.0 V, Flash Program | 16-Bit Timer TB0 Timer_B With Seven " |
| Execution (Typical) | Capture/Compare Shadow Registers |
| 140 μA/MHz at 8 MHz, 3.0 V, RAM Program Execution (Typical) | Up to Four Universal Serial Communication Interfaces " |
| � Standby Mode (LPM3): | USCI_A0, USCI_A1, USCI_A2, and USCI_A3 |
| Real-Time Clock With Crystal , Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wake-Up: 2.6 μA at 3.0 V (Typical) Low-Power Oscillator (VLO), General-Purpose Counter, Watchdog, and | Each Supporting � Enhanced UART supporting Auto-Baudrate Detection � IrDA Encoder and Decoder � Synchronous SPI |
| Supply Supervisor Operational, Full RAM | � USCI_B0, USCI_B1, USCI_B2, and USCI_B3 |
| Retention, Fast Wake-Up: | Each Supporting |
| 1.8 μA at 3.0 V (Typical) | � I2CTM |
| � Off Mode (LPM4): Full RAM Retention, Supply Supervisor Operational, Fast Wake-Up: 1.69 μA at 3.0 V (Typical) Wake-Up From Standby Mode in Less Than 5 μs " | � Synchronous SPI 12-Bit Analog-to-Digital (A/D) Converter � Internal Reference � Sample-and-Hold � Autoscan Feature " |
DESCRIPTION
The Texas Instruments MSP430 family of ultralow-power microcontrollers consists of several devices featuring
different sets of peripherals targeted for various applications. The architecture, combined with five low-power
modes, is optimized to achieve extended battery life in portable measurement applications. The device features a
powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency.
The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 5 μs.
The MSP430F543x and MSP430F541x series are microcontroller configurations with three 16-bit timers, a high
performance 12-bit analog-to-digital (A/D) converter, up to four universal serial communication interfaces (USCI),
hardware multiplier, DMA, real-time clock module with alarm capabilities, and up to 87 I/O pins.
Typical applications for this device include analog and digital sensor systems, digital motor control, remote
controls, thermostats, digital timers, hand-held meters, etc.
Family members available are summarized in Table 1.
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