The MSP430F5438AIPZR from Texas Instruments is an ultra-low-power 16-bit MSP430 microcontroller based on a RISC architecture. It operates at up to 25MHz and provides extended memory addressing, making it suitable for portable instrumentation, industrial measurement, data acquisition and low-power embedded-control systems.
The MCU integrates 256KB of Flash memory and 16KB of SRAM. A hardware multiplier supporting 32-bit operations and a 3-channel DMA controller help offload computation and data-transfer tasks from the CPU.
Analog functionality includes a 12-bit SAR ADC with internal reference, sample-and-hold and automatic scanning. The MSP430F5438A provides 14 external ADC channels plus two internal channels, making it well suited for multichannel sensor and measurement applications.
Communication peripherals include up to four USCI_A and four USCI_B modules. USCI_A supports enhanced UART with automatic baud-rate detection, IrDA and synchronous SPI, while USCI_B supports I²C and synchronous SPI. TI’s parametric data lists four UARTs, four I²C interfaces, up to eight SPI functions and 87 GPIOs for the device.
Three integrated 16-bit timers include Timer_A0, Timer_A1 and Timer_B0. Additional system features include RTC functionality, supply supervision, brownout protection and multiple low-power operating modes. The digitally controlled oscillator enables a typical 3.5µs wake-up from standby to active mode.
The MSP430F5438A operates from 1.8V to 3.6V and is optimized for very low power consumption. TI specifies typical active consumption of approximately 230µA/MHz at 8MHz and 3.0V when executing from Flash, while shutdown mode LPM4.5 can consume as little as 0.1µA at 3.0V.
The exact MSP430F5438AIPZR ordering option is supplied in a 100-pin LQFP (PZ) package measuring 16 × 16mm and is rated for -40°C to +85°C operation. The “R” option is supplied in 1,000-piece large tape-and-reel packaging. It is RoHS and REACH compliant, carries an MSL Level 3 / 260°C rating, and is currently listed by TI as ACTIVE.
Key Specifications:
- Brand: Texas Instruments / TI
- Part Number: MSP430F5438AIPZR
- Family: MSP430F5xx
- Product Type: Ultra-Low-Power Microcontroller
- CPU: MSP430
- Architecture: 16-Bit RISC
- Maximum Frequency: 25MHz
- Flash Memory: 256KB
- SRAM: 16KB
- ADC: 12-Bit SAR
- External ADC Channels: 14
- Internal ADC Channels: 2
- UART: 4
- I²C: 4
- SPI Functions: Up to 8
- GPIO: 87
- DMA Channels: 3
- Hardware Multiplier: 32-Bit Operation Support
- 16-Bit Timers: 3
- RTC: Yes
- IrDA: Yes
- USB: No
- Supply Voltage: 1.8V to 3.6V
- Standby Wake-Up Time: 3.5µs Typ
- LPM4.5 Current: 0.1µA Typ @ 3.0V
- Operating Temperature: -40°C to +85°C
- Package: LQFP-100 / PZ
- Package Size: 16 × 16mm
- Mounting Type: SMD / SMT
- Packaging: Large Tape & Reel
- Reel Quantity: 1000 pcs
- Lead Finish: NiPdAu
- MSL: Level 3 / 260°C
- RoHS Compliant: Yes
- REACH Compliant: Yes
- Product Status: ACTIVE.
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