MSP430F2491TPM.B中文资料德州仪器数据手册PDF规格书

1FEATURES

23• Low Supply-Voltage Range, 1.8 V to 3.6 V

• Ultra-Low Power Consumption

– Active Mode: 270 μA at 1 MHz, 2.2 V

– Standby Mode (VLO): 0.3 μA

– Off Mode (RAM Retention): 0.1 μA

• Ultra-Fast Wake-Up From Standby Mode in

Less Than 1 μs

• 16-Bit RISC Architecture, 62.5-ns Instruction

Cycle Time

• Basic Clock Module Configurations:

– Internal Frequencies up to 16 MHz

– Internal Very Low-Power LF Oscillator

– 32-kHz Crystal

– Internal Frequencies up to 16 MHz With

Four Calibrated Frequencies to ±1%

– Resonator

– External Digital Clock Source

– External Resistor

• 12-Bit Analog-to-Digital (A/D) Converter With

Internal Reference, Sample-and-Hold, and

Autoscan Feature

• 16-Bit Timer_A With Three Capture/Compare

Registers

• 16-Bit Timer_B With Seven Capture/Compare

With Shadow Registers

• Four Universal Serial Communication

Interfaces (USCI)

– USCI_A0 and USCI_A1

– Enhanced UART Supporting Auto-Baudrate

Detection

– IrDA Encoder and Decoder

– Synchronous SPI

– USCI_B0 and USCI_B1

– I2C™

– Synchronous SPI

• On-Chip Comparator

• Supply Voltage Supervisor/Monitor With

Programmable Level Detection

• Brownout Detector

• Bootstrap Loader

• Serial Onboard Programming, No External

Programming Voltage Needed, Programmable

Code Protection by Security Fuse

• Family Members Include:

– MSP430F233

– 8KB+256B Flash Memory,

– 1KB RAM

– MSP430F235

– 16KB+256B Flash Memory

– 2KB RAM

– MSP430F247, MSP430F2471 (1)

– 32KB+256B Flash Memory

– 4KB RAM

– MSP430F248, MSP430F2481

– 48KB+256B Flash Memory

– 4KB RAM

– MSP430F249, MSP430F2491

– 60KB+256B Flash Memory

– 2KB RAM

– MSP430F2410

– 56KB+256B Flash Memory

– 4KB RAM

• Available in 64-Pin QFP and 64-Pin QFN

Packages (See Available Options)

• For Complete Module Descriptions, See

MSP430x2xx Family User’s Guide (SLAU144)

(1) The MSP430F24x1 devices are identical to the MSP430F24x

devices, with the exception that the ADC12 module is not

implemented on the MSP430F24x1.

DESCRIPTION

The Texas Instruments MSP430™ family of ultra-low 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 calibrated digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less

than 1 μs.

The MSP430F23x, MSP430F24x(1), and MSP430F2410 series are microcontroller configurations with two builtin

16-bit timers, a fast 12-bit A/D converter (not MSP430F24x1), a comparator, four (two in MSP430F23x)

universal serial communication interface (USCI) modules, and up to 48 I/O pins. The MSP430F24x1 devices are

identical to the MSP430F24x devices, with the exception that the ADC12 module is not implemented. The

MSP430F23x devices are identical to the MSP430F24x devices, with the exception that a reduced Timer_B, one

USCI module, and less RAM are integrated.

Typical applications include sensor systems, industrial control applications, and hand-held meters.