Overview
The Texas Instruments MSP430F2234IDAR is an ultra-low-power mixed signal microcontroller from the MSP430 family. This device is designed to optimize power consumption and extend battery life in portable measurement applications. It features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The MSP430F2234IDAR includes a range of peripherals such as two 16-bit timers, a universal serial communication interface, a 10-bit A/D converter, and two general-purpose operational amplifiers. The device is available in a 38-pin Thin Shrink Small-Outline Package (TSSOP) (DA) and supports various low-power modes to minimize energy consumption.
Key Specifications
| Specification | Value |
|---|---|
| Package | 38-Pin TSSOP (DA) |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Flash Memory | 8 KB + 256 B |
| RAM | 512 B |
| Maximum Clock Frequency | 16 MHz |
| Instruction Cycle Time | 62.5 ns |
| Power Consumption (Active Mode) | 270 µA at 1 MHz, 2.2 V |
| Power Consumption (Standby Mode) | 0.7 µA |
| Power Consumption (Off Mode with RAM Retention) | 0.1 µA |
| Analog-to-Digital Converter | 10-bit, 200 ksps |
| Operational Amplifiers | Two configurable |
| Timers | Two 16-bit timers (Timer_A and Timer_B) |
| Serial Communication Interfaces | UART, SPI, I2C |
Key Features
- Ultra-low power consumption with five low-power modes.
- Ultra-fast wake-up from standby mode in less than 1 µs.
- 16-bit RISC architecture with 62.5-ns instruction cycle time.
- Basic clock module configurations with internal frequencies up to 16 MHz.
- Internal very-low-power low-frequency oscillator and support for 32-kHz crystal and high-frequency crystal up to 16 MHz.
- 10-bit 200-ksps analog-to-digital (A/D) converter with internal reference, sample-and-hold, autoscan, and data transfer controller.
- Two configurable operational amplifiers.
- Universal serial communication interface including enhanced UART, SPI, and I2C.
- Brownout detector and serial onboard programming without external programming voltage.
- Programmable code protection by security fuse and bootstrap loader.
- On-chip emulation module.
Applications
The MSP430F2234IDAR is typically used in applications that require low power consumption and efficient processing of analog signals. These include:
- Sensor systems that capture analog signals, convert them to digital values, and process the data for display or transmission to a host system.
- Stand-alone radio-frequency (RF) sensor front ends.
- Portable measurement applications where extended battery life is crucial.
Q & A
- What is the operating temperature range of the MSP430F2234IDAR?
The operating temperature range is -40°C to 85°C. - What is the supply voltage range for the MSP430F2234IDAR?
The supply voltage range is 1.8 V to 3.6 V. - How much flash memory and RAM does the MSP430F2234IDAR have?
The device has 8 KB + 256 B of flash memory and 512 B of RAM. - What is the maximum clock frequency of the MSP430F2234IDAR?
The maximum clock frequency is 16 MHz. - What are the power consumption levels in different modes?
Active Mode: 270 µA at 1 MHz, 2.2 V; Standby Mode: 0.7 µA; Off Mode (RAM Retention): 0.1 µA. - Does the MSP430F2234IDAR have operational amplifiers?
Yes, it has two configurable operational amplifiers. - What serial communication interfaces are supported by the MSP430F2234IDAR?
The device supports UART, SPI, and I2C. - How quickly can the MSP430F2234IDAR wake up from standby mode?
The device can wake up from standby mode in less than 1 µs. - Is onboard programming possible without an external programming voltage?
Yes, serial onboard programming is possible without an external programming voltage. - What kind of package options are available for the MSP430F2234IDAR?
The device is available in a 38-pin TSSOP (DA) package, among others.
