MSP430F1491IRTDR.B中文资料德州仪器数据手册PDF规格书

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.