MSP430F4491IPZR.B中文资料德州仪器数据手册PDF规格书

Low Supply-Voltage Range, 1.8 V to 3.6 V

Ultralow-Power Consumption:

− Active Mode: 280 μA at 1 MHz, 2.2 V

− Standby Mode: 1.1 μA

− Off Mode (RAM Retention): 0.1 μA

Five Power Saving Modes

Wake-Up From Standby Mode in Less

Than 6 μs

16-Bit RISC Architecture,

125-ns Instruction Cycle Time

12-Bit A/D Converter With Internal

Reference, Sample-and-Hold and

Autoscan Feature

16-Bit Timer_B With Three† or Seven‡

Capture/Compare-With-Shadow Registers

16-Bit Timer_A With Three

Capture/Compare Registers

On-Chip Comparator

Serial Communication Interface (USART),

Select Asynchronous UART or

Synchronous SPI by Software:

− Two USARTs (USART0, USART1)†

− One USART (USART0)‡

Brownout Detector

Supply Voltage Supervisor/Monitor With

Programmable Level Detection

Serial Onboard Programming,

No External Programming Voltage Needed

Programmable Code Protection by Security

Fuse

Integrated LCD Driver for up to

160 Segments

Bootstrap Loader

Family Members Include:

− MSP430F435, MSP430F4351§:

16KB+256B Flash Memory,

512B RAM

− MSP430F436, MSP430F4361§:

24KB+256B Flash Memory,

1KB RAM

− MSP430F437, MSP430F4371§:

32KB+256B Flash Memory,

1KB RAM

− MSP430F447:

32KB+256B Flash Memory,

1KB RAM

− MSP430F448, MSP430F4481§:

48KB+256B Flash Memory,

2KB RAM

− MSP430F449, MSP430F4491§:

60KB+256B Flash Memory,

2KB RAM

For Complete Module Descriptions, See

The MSP430x4xx Family User’s Guide,

Literature Number SLAU056

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 devices feature

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 6 μs.

The MSP430x43x(1) and the MSP430x44x(1) series are microcontroller configurations with two built-in 16-bit

timers, a fast 12-bit A/D converter (not implemented on the MSP430F43x1 and MSP430F44x1 devices), one

or two universal serial synchronous/asynchronous communication interfaces (USART), 48 I/O pins, and a liquid

crystal driver (LCD) with up to 160 segments.

Typical applications include sensor systems that capture analog signals, convert them to digital values, and

process and transmit the data to a host system, or process this data and display it on a LCD panel. The timers

make the configurations ideal for industrial control applications such as ripple counters, digital motor control,

EE-meters, hand-held meters, etc. The hardware multiplier enhances the performance and offers a broad code

and hardware-compatible family solution.