MSP430F123IDW
The Texas Instruments MSP430 family of ultralow power microcontrollers consist of several devices featuring
different sets of peripherals targeted for various applications. The architecture, combined with five low power
modes is optimized to achieve extended battery life in portable measurement applications. The device features
a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that attribute to maximum code efficiency.
The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6?s.
MT79332
The MT79332 is an active power factor correction single-stage primary side control AC-DC LED driver. The on-chip PFC circuit in the MT79332 runs in critical conduction mode (CRM) to achieve high power factor and lower power MOSFET switching loss. Precision LED current is obtained using MAXIC's proprietary control approach, which eliminates the need for a secondary side detect and feed back circuit, which includes an optocoupler. The peripheral circuit is reduced because to the use of 600V power MOSFETs. To ensure system reliability, MT79332 has several protections such as over-current protection (OC), overvoltage protection (OVP), short circuit protection (SCP), and above temperature protection (OTP), among others.
Features
Single-stage Active PFC for high power factor and low THD.
?Primary side control eliminates optocoupler
?High precision LED current (?3%) Critical Conduction Mode operation
?Cycle-by-cycle current limiting
?Under-voltage lockout (UVLO) protection
?VDD and output over voltage protection
?Adjustable constant current and output power setting
?Power on soft start
? Embedded with 600V power MOSFET
?SOP8package
MT8816
The Mitel MT8816 is built with MITEL's ISO-CMOS technology, which provides low power dissipation and great reliability. The device has an 8 ? 16 array of cross point switches, as well as a 7 to 128 line decoder and latch circuits. By selecting the relevant seven address bits, any of the 128 switches can be addressed. By adding a rational one or zero to the DATA input, the chosen switch can be turned on or off. VSS is the digital inputs' ground reference. The analogue signal has a range of VDD to VEE. Chip Select (CS) enables the cross point array to be cascaded for matrix enlargement.
MT8888CS
The MT8888 is a monolithic DTMF transceiver with call progress filter. It is fabricated in CMOS technology offering low power consumption and high reliability. The receiver section is based upon the industry standard MT8870 DTMF receiver while the transmitter utilizes a switched capacitor D/A converter for low distortion, high accuracy DTMF signalling. Internal counters provide a burst mode such that tone bursts can be transmitted with precise timing. A call progress filter can be selected allowing a microprocessor to analyze call progress tones. The MT8888C utilizes an Intel micro interface, which allows the device to be connected to a number of popular microcontrollers with minimal external logic.
