16-bit microcontroller MSP430G2553

general purposecommunicationfor touch buttons

Description
The MSP430G2553 is a 16-bit ultra-low-power mixed-signal microcontroller optimized for battery-powered measurement and sensing applications. It integrates a 16-bit RISC CPU with constant generators, a digitally controlled oscillator (DCO) for fast wake-up (<1 µs) and a set of analog and digital peripherals suitable for low-cost sensor systems and portable devices.

Typical applications

• Battery-powered sensors and portable measurement instruments
• Low-cost data-acquisition nodes and analog signal front-ends
• Human-machine interfaces with capacitive touch I/Os
• Embedded control and communication modules using UART/SPI/I2C

Key features

• Supply voltage: 1.8 V to 3.6 V
• Ultra-low power consumption: Active ~230 µA @1 MHz (2.2 V); Standby ~0.5 µA; Off (RAM retention) ~0.1 µA
• Five low-power modes with ultra-fast wake-up (<1 µs)
• 16-bit RISC CPU, 62.5 ns instruction cycle time
• Clocking: DCO up to 16 MHz (four calibrated frequencies), LF oscillator, 32 kHz crystal support, external clock
• Two 16-bit Timer_A modules with capture/compare registers
• Up to 24 I/O pins (capacitive-touch capable)
• USCI module: UART (enhanced), SPI (synchronous), I2C, IrDA encoder/decoder
• 10-bit SAR ADC, up to 200 ksps, internal reference, sample-and-hold, autoscan (MSP430G2x53 family)
• On-chip analog comparator, brownout detector, watchdog timer
• Serial onboard programming, programmable code protection, secure debug (Spy-Bi-Wire)

Technical specifications

• CPU: MSP430 16-bit RISC
• Maximum frequency: 16 MHz
• Flash memory: 16 KB
• SRAM: 512 B
• ADC: 10-bit SAR, 200 ksps, 8 channels
• UART: 1; SPI: 2; I2C: 1 (via USCI)
• GPIOs: up to 24 (capacitive-touch enabled)
• Operating temperature: -40 °C to +85 °C
• Nonvolatile memory: 16 KB; Hardware accelerators: none

Package options (examples)

• PDIP – 20 pins
• TSSOP – 20 pins, 28 pins
• VQFN (QFN) – 32 pins

Documentation & support

• Datasheet: MSP430G2x53 / MSP430G2x13 mixed-signal microcontroller datasheet
• Family user guide: MSP430F2xx / MSP430G2xx User's Guide
• Errata and application notes available from the manufacturer