1.1 Features 1
• Low Supply Voltage Range, 1.8 V to 3.6 V
• Ultra-Low Power Consumption:
– Active Mode: 280 μA at 1 MHz, 2.2 V
– Standby Mode: 1.6 μA
– Off Mode (RAM Retention): 0.1 μA
• Five Power-Saving Modes
• Wakeup From Standby Mode in Less Than 6 μs
• 16-Bit RISC Architecture, 125-ns Instruction Cycle
Time
• 12-Bit Analog-to-Digital Converter (ADC) With
Internal Reference, Sample-and-Hold, and
Autoscan Feature
• 16-Bit Timer_B With Seven Capture/Compare-
With-Shadow Registers
• 16-Bit Timer_A With Three Capture/Compare
Registers
• On-Chip Comparator
• Serial Onboard Programming, No External
Programming Voltage Needed, Programmable
Code Protection by Security Fuse
• Serial Communication Interface (USART),
Functions as Asynchronous UART or Synchronous
SPI Interface
– Two USARTs (USART0, USART1) On
MSP430F14x and MSP430F14x1 Devices
– One USART (USART0) On MSP430F13x
Devices
• Family Members (Also See Device Comparison)
– MSP430F133
– 8KB + 256 Bytes of Flash Memory,
256 Bytes of RAM
– MSP430F135
– 16KB + 256 Bytes of Flash Memory,
512 Bytes of RAM
– MSP430F147, MSP430F1471
– 32KB + 256 Bytes of Flash Memory,
1KB of RAM
– MSP430F148, MSP430F1481
– 48KB + 256 Bytes of Flash Memory,
2KB of RAM
– MSP430F149, MSP430F1491
– 60KB + 256 Bytes of Flash Memory,
2KB of RAM

1.2 Applications
• Sensor Systems
• Industrial Controls
• Hand-Held Meters

1.3 Description
The Texas Instruments MSP430™ family of ultra-low-power microcontrollers (MCUs) consist 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 attribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from
low-power modes to active mode in less than 6 μs.
The MSP430F13x, MSP430F14x, and MSP430F14x1 MCUs support two built-in 16-bit timers, a fast 12-bit
ADC on the MSP430F13x and the MSP430F14x devices, one USART on the MSP430F13x devices or
two USARTs on the MSP430F14x and MSP430F14x1 devices, and 48 I/O pins. The hardware multiplier
enhances the performance and offers a broad code and hardware-compatible family solution.
For complete module descriptions, see the MSP430x1xx Family User’s Guide.