Packet Level Protocol
Forward Direction Packet Data Types
Reverse Direction Packet Data Types
Error Reporting Format
PN7120 implements an extreme <em>low</em> <em>power</em> discovery <em>mode</em> al<em>low</em>ing decreasing up to
100 times the current consumption of the NFC Controller. This consumption reduction
does not impact the user experience
The Display Serial Interface Specification defines protocols between a host processor and peripheral
devices that adhere to MIPI Alliance specifications for mobile device interfaces. The DSI specification
builds on existing specifications by adopting pixel formats and command set defined in MIPI Alliance
specifications for DBI-2, DPI-2, and DCS.
介绍DSI全称Display Serial Interface，主要用于显示模块的一个接口，它基于MIPI协议而产生，基于MIPI协议的还有CSI(camera serial interface), DBI(display bus interface), DPI(display pixel interface)。相对于一般的RGB接口，DSI有成本低，高速率的优势。在MSM8960平台上，RGB接口
AD621 Low Drift, Low Power Instrumentation AmplifierThe AD621 is an easy to use, <em>low</em> cost, <em>low</em> <em>power</em>, high accu-
When operating from high source impedances, as in ECG and
racy instrumentation amplifier which is ideally suited for a wide
blood pressure monitors, the AD621 features the ideal combina-
range of applications. Its unique combination of high perfor-
tion of <em>low</em> noise and <em>low</em> input bias currents. Voltage noise is
mance, small size and <em>low</em> <em>power</em>, outperforms discrete in amp
specified as 9 nV/?
Hz at 1 kHz and 0.28 ?V p-p from 0.1 Hz to
Abstract-An ultra <em>low</em> <em>power</em> non-volatile memory is designed
in a standard CMOS process for passive RFID tags. The memory
can operate in a new <em>low</em> <em>power</em> operating scheme under a wide
supply voltage and clock frequency range. In the charge pump
circuit the threshold voltage effect of the switch transistor is
almost eliminated and the pumping efficiency of the circuit is
improved. An ultra <em>low</em> <em>power</em> 192-bit memory with a register
array is implemented in a 0.18μM standard CMOS process. The
measured results indicate that, for the supply voltage of 1.2 volts
and the clock frequency of 780KHz, the current consumption of
the memory is 1.8μA (3.6μA) at the read (write) rate of
The LM386 is a <em>power</em> amplifier designed for use in <em>low</em> voltage
consumer applications. The gain is internally set to 20 to
keep external part count <em>low</em>, but the addition of an external
resistor and capacitor between pins 1 and 8 will increase the
gain to any value up to 200.
The inputs are ground referenced while the output is automatically
biased to one half the supply voltage. The quiescent
<em>power</em> drain is only 24 milliwatts when operating from a
6 volt supply, making the LM386 ideal for battery operation.
The SP705-708/813L/813M series is a family of microprocessor (mP) supervisory circuits that
integrate myriad components involved in discrete solutions which monitor <em>power</em>-supply and
battery in mP and digital systems. The SP705-708/813L/813M series will significantly improve
system reliability and operational efficiency when compared to solutions obtained with discrete
components. The features of the SP705-708/813L/813M series include a watchdog timer,
a mP reset, a Power Fail Comparator, and a manual-reset input. The SP705-708/813L/813M
series is ideal for applications in automotive systems, computers, controllers, and intelligent
instruments. The SP705-708/813L/813M series is an ideal solution for systems in which critical
monitoring of the <em>power</em> supply to the mP and related digital components is demanded.
Hacking and Penetration Testing with Low Power Devices shows you how to perform penetration tests using small, <em>low</em>-<em>power</em>ed devices that are easily hidden and may be battery-<em>power</em>ed. It shows how to use an army of devices, costing less than you might spend on a laptop, from distances of a mile or more.
Application Specific Embedded Processors.
Embedded Memories. Dynamic Voltage and Frequency Scaling.
These topics comprise the most relevant techniques to minimize energy/<em>power</em> consumption from a system-level design
point of view.
随着越来越多的电子应用对低功耗或电池供电的需求，节能变得尤为重要。目前，有些应用必须功耗非常低，甚至在极端情况下，应用要依靠单电池供电维持运行长达15-20年。为了实现这样的应用，Microchip推出了nanoWatt XLP技术。采用nanoWatt XLP技术的超低功耗单片机能提供业内最低的休眠电流，而超低功耗应用可以90%-99%的时间都处于休眠模式。
■ 休眠/掉电电流低至20 nA
■ 欠压复位电流低至45 nA
■ 看门狗定时器电流低至400 nA
■ 实时时钟/日历电流低至500 nA
Entering Wait <em>mode</em>
Wait <em>mode</em> is entered by executing the WFI or WFE assembly instruction. This stops the
CPU, but other peripherals and the interrupt controller can continue...