TI Unveils World's Lowest Power MCU

7/26/2002 - Providing customers power savings up to 10 times more than competitor devices, Texas Instruments (TI) (NYSE: TXN) introduces the world´s lowest power MCU with power consumption as low as 0.7 micro-amps (uA) in standby mode and 1.3 micro-amps active. The new MSP430C1101 is available for $0.49 in high-volume and is 100 percent compatible with all existing MSP430 family members. With the introduction of the new device, the family portfolio spans from the low-end $0.49 device to higher-end devices with up to 60kB of program memory, high-performance data converters and an array of digital peripherals offering true system on chip (SoC) solutions for a wide range of low-power applications.

The new MSP430C1101 includes 1kB of ROM, 128 bytes of RAM, a watchdog timer, 3-channel multi-function 16-bit pulse-width modulation (PWM) Timer_A and an analog comparator that supports high-precision analog-to-digital conversion for cost sensitive applications. Eliminating the need for software intensive polling commonly used with other low-cost MCUs, the MSP430C1101 like other high-end MSP430 derivatives, also offers vectored interrupt capability on every I/O pin and with every peripheral supporting sophisticated event-driven operation.

"The new MSP430C1101 provides our customers a significant cost-performance advantage," said Mark Buccini, product line marketing manager. "Despite the MSP430C1101's highly competitive $0.49 price and ultra-low-power, it really packs a punch in terms of performance. By using the 16-bit performance, we see our customers not having to make compromises and embedding features never thought possible from a low-cost MCU in applications ranging from electronic tags to running shoes."

Ultra-Low-Power Performance
A flexible clock system with five low-power modes enables the MSP430 family´s low-power performance. Engineers can tune system clocking to exactly meet the requirements for their application. For example, the new MSP430C1101 delivers the industry´s lowest current consumption of 1.3 micro-amps active at 4 kHz, especially useful when considering that the device is performing true 16-bit instructions.

For high-performance applications, an integrated digitally controlled oscillator (DCO) or external high-speed crystal can be used to clock the system at 160 micro-amps per million instructions per second (MIPS). For very cost sensitive applications the device can operate from the DCO with no external components. In addition, fast instruction execution coupled with the MSP430's start-up from standby in less than 6 microseconds results in total power consumption up to 10 times lower than competitive devices, dramatically extending battery life in applications such as utility metering, portable instrumentation and intelligent sensing. The operating voltage of the new MSP430x11x1 product-line is 1.8-3.6V with up to 8 MIPS of performance available on demand.

All MSP430 devices are based on an orthogonal 16-bit true-RISC CPU core with the flexibility of 16 fully addressable single-cycle 16-bit CPU registers, only 27 instructions and 7 consistent addressing modes that all use double data fetch technology (DDFT). DDFT accesses memory twice with each clock pulse eliminating the need for complex clock multiplying and instruction pipelining schemes. In addition to reducing power consumption and CPU size the MSP430 architecture is especially effective when used with modern programming techniques such as calculated branching and high-level languages such as C.

Increasing Product Portfolio
The increasing portfolio of TI´s popular line of MSP430 ultra-low-power microcontrollers affords customers a wide range of product choices. The 100 percent code compatibility across all MSP430 devices allows customers to develop a clear migration path for a variety of low-end and high-end power sensitive designs.

Development Support
For development, a $49 Flash Emulation Tool (FET) MSP-FET430X110 is available now. The FET supports real-time in-system development accessing the Flash devices embedded emulation capability. The tool comes complete with a JTAG interface target board and Flash devices as well as a complete integrated development environment (IDE) including a debugger, assembler/linker and 4kB IAR C-Compiler. An extensive list of downloadable code examples and application reports are available from the TI web site.

The MSP430C1101, MSP430C1111, MSP430C1121, MSP430F1101, MSP430F1111 and MSP430F1121 are available now from TI and its authorized distributors in 20-pin small outline packages (SOP) and thin shrink small outline (TSSOP) packages.

More information about TI´s MSP430 family of MCUs is available on the World Wide Web at www.ti.com/sc/msp430

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