MSP430F133 - Uncategorized TEXAS INSTRUMENTS - Free user manual and instructions
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| Product Type | Microcontroller |
| Brand | Texas Instruments |
| Model | MSP430F133 |
| CPU | 16-bit RISC MSP430 |
| Flash Memory | 8 KB |
| RAM | 256 B |
| Digital I/O Pins | 48 (max) |
| Analog Inputs | 8 channels, 12-bit ADC |
| Timers | 2 x 16-bit Timer A |
| Communication Interfaces | USART (UART, SPI, I2C) |
| Supply Voltage | 1.8 V to 3.6 V |
| Operating Temperature | -40°C to 85°C |
| Power Consumption (Active) | 330 µA at 1 MHz, 2.2 V |
| Low Power Modes | LPM0-LPM4 |
| Package | 64-pin QFP (LQFP) |
| Dimensions | 12 mm x 12 mm (typical) |
| Weight | ~0.5 g (typical) |
| Programming Interface | JTAG (SBW) |
| DMA | Not available |
| Hardware Multiplier | 16x16 (MPY) |
Frequently Asked Questions - MSP430F133 TEXAS INSTRUMENTS
What tools are required to program the MSP430F133?
You need a JTAG debugger (e.g., TI MSP-FET) and an IDE like Code Composer Studio or IAR Embedded Workbench.
How do I enter low-power mode on the MSP430F133?
Set the CPUOFF bit in the status register (SR) to enter LPM0. For deeper modes, use LPM1-LPM4 by setting SCG1, SCG0, and OSCOFF bits. Disable unused peripherals to minimize current.
What is the maximum clock frequency of the MSP430F133?
The maximum CPU frequency is 8 MHz at 3.6 V supply.
How many ADC channels can I use?
The MSP430F133 has an integrated 12-bit ADC with 8 external analog channels (A0-A7).
Can I use the USART for I2C communication?
Yes, the USART module can be configured in I2C mode. It supports both master and slave modes.
What is the typical power consumption in LPM3?
In LPM3 (with ACLK and timer running), the current is about 0.9 µA typical at 2.2 V.
How do I erase the flash memory?
Use the Flash Memory Controller registers. Perform a segment erase by writing 0xA5 to FCTL1 and setting ERASE bit, then writing to any address in the segment.
What is the watchdog timer for?
The Watchdog Timer+ (WDT+) can be used as a system reset if not serviced, or as a general-purpose interval timer.
How many pins does the MSP430F133 have?
The device comes in a 64-pin LQFP package, with up to 48 I/O pins.
Can I use internal oscillator without external crystal?
Yes, the MSP430F133 has an internal DCO (Digitally Controlled Oscillator) that can operate without external components, adjustable via software.
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USER MANUAL MSP430F133 TEXAS INSTRUMENTS
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Brand : TEXAS INSTRUMENTS
Model : MSP430F133
Category : Uncategorized