Microchip Technology Unveils 4Kb Serial Presence Detect EEPROM for DDR4 SDRAM Modules
Apr 14 14
Microchip Technology Inc. introduced a new 4Kb I(2) C(TM) Serial Presence Detect (SPD) EEPROM device--the 34AA04. This device is specifically designed to work with the next generation of Double Data Rate 4 (DDR4) SDRAM modules used in high-speed PCs and laptops, while also supporting older DDR2/3 platforms. This new device is designed for the price-competitive consumer products market and is capable of operation across a broad voltage range (1.7V to 3.6V). This device is JEDEC JC42.4 (EE1004-v) Serial Presence Detect (SPD) compliant and is designed to be compatible with DDR4 SDRAM modules. The 34AA04 includes reversible software write protection for each of four independent 128 x 8-bit blocks and supports a new SMBus compatible bus time out. The device features a page write capability of up to 16 bytes of data and 3 address pins allow up to eight devices on the same bus. The 34AA04 is backward compatible with existing DDR2 and DDR3 SPD EEPROMs. To ensure backward compatibility, the memory array of the 34AA04 is divided into two separate 256-byte banks to overlay with the architecture of older SPD EEPROM devices. The 34AA04 serves a wide range of applications in the consumer-electronic market (e.g., PCs, laptops, graphic cards), among others.
Microchip Technology Inc. Announces MCP8063-a Highly Integrated, Cost-Effective, Automotive AEC-Q100-Qualified Motor Driver
Apr 8 14
Microchip Technology Inc. announced the MCP8063-a highly integrated, cost-effective, automotive AEC-Q100-qualified motor driver that delivers superior performance in a small, 8-pin, 4x4 mm DFN package. It is also the first to combine all of those features with 1.5A peak phase current for the 180-degree sinusoidal drive of a variety of three-phase brushless DC motor and fan applications. This integration reduces cost and PCB area, and the high sinusoidal-drive performance provides high efficiency, low acoustic noise and low mechanical vibration for energy savings and quiet operation. Additionally, the MCP8063 includes safety features such as thermal shutdown, over-current limiting and lock-up protection. The designers of a broad range of motor applications in markets such as the automotive, IT, industrial and home-appliance sectors are faced with increasing regulatory and consumer demands for continued reductions in cost, space, noise and power consumption; with better performance and safety. The integrated features of the MCP8063 motor driver solve these problems cost effectively, while providing a wide operating temperature range of -40 to +125 degrees Celsius. Additionally, it supports the sensorless driving of BLDC motors, which eliminates the cost and space of a Hall sensor. The MCP8063 motor driver works stand-alone or in conjunction with Microchip's large portfolio of PIC microcontrollers and dsPIC digital signal controllers. This offers a high degree of flexibility for everything from simple voltage control to closed-loop motor speed control using high-performance algorithms, such as sinusoidal sensorless drive. To enable development with the new MCP8063 motor driver, Microchip also announced the MCP8063 12V 3-Phase BLDC Sensorless Fan Controller Demo Kit (part # ADM00575), which is available for $49.99 each. Additionally, this tool comes with a user-friendly configuration GUI. Microchip also supports its motor control and driver portfolios with a full range of development solutions, including firmware, algorithms, application notes, development tools, evaluation boards and reference designs. Pricing and Availability: The MCP8063 motor driver is available for samples and volume production, at the attractive price point of $1.12 each in 5,000-unit quantities.
Microchip Introduces Cost-Effective 8-bit PIC(R) Microcontroller Family with Intelligent Analog and Core Independent Peripherals
Mar 31 14
Microchip Technology Inc. announced from EE Live! and the Embedded Systems Conference in San Jose the PIC16(L)F170X and PIC16(L)F171X family of 8-bit microcontrollers (MCUs), which combine a rich set of intelligent analog and core independent peripherals, along with cost-effective pricing and eXtreme Low Power (XLP) technology. Available in 14-, 20-, 28-, and 40/44-pin packages, the 11-member PIC16F170X/171X family of MCUs integrates two Op Amps to drive analog control loops, sensor amplification and basic signal conditioning, while reducing system cost and board space. These new devices also offer built-in Zero Cross Detect (ZCD) to simplify TRIAC control and minimize the EMI caused by switching transients. Additionally, these are the first PIC16 MCUs with Peripheral Pin Select, a pin-mapping feature that gives designers the flexibility to designate the pinout of many peripheral functions. The PIC16F170X/171X are general-purpose MCUs that are ideal for a broad range of applications, such as consumer (home appliances, power tools, electric razors), portable medical (blood-pressure meters, blood-glucose meters, pedometers), LED lighting, battery charging, power supplies and motor control. The PIC16F170X/171X family features Core Independent Peripherals, such as the Configurable Logic Cell (CLC), Complementary Output Generator (COG) and Numerically Controlled Oscillator (NCO). These "self-sustaining" peripherals take 8-bit PIC(R) MCU performance to a new level, as they are designed to handle tasks with no code or supervision from the CPU to maintain operation. As a result, they simplify the implementation of complex control systems and give designers the flexibility to innovate. The CLC peripheral allows designers to create custom logic and interconnections specific to their application, thereby reducing external components, saving code space and adding functionality. The COG peripheral is a powerful waveform generator that can generate complementary waveforms with fine control of key parameters, such as phase, dead-band, blanking, emergency shut-down states and error-recovery strategies. It provides a cost-effective solution, saving both board space and component cost when driving FETs in half- and full-bridge drivers for control and power-conversion applications, for example. The NCO is a programmable precision linear frequency generator, ranging from <1 Hz to 500 kHz+. It offers a step up in performance, while simplifying designs requiring precise linear frequency control, such as lighting control, tone generators, radio-tuning circuitry and fluorescent ballasts. The new MCUs feature up to 28 KB of self-read/write Flash program memory, up to 2 KB of RAM, a 10-bit ADC, a 5-/8-bit DAC, Capture-Compare PWM modules, stand-alone 10-bit PWM modules and high-speed comparators (60 ns typical response), along with EUSART, I(2) C(TM) and SPI interface peripherals. They also feature XLP technology for typical active and sleep currents of just 35 uA/MHz and 30 nA, respectively, helping to extend battery life and reduce standby current consumption.