About I2C, this is also the previously tangled part. Note.
(For details, refer to: source; Phodal'sBlog)
The I2C (Inter-Integrated Circuit) bus is a two-line serial bus developed by PHILIPS to connect the microcontroller and its peripheral devices. It is a bus standard widely used in the field of microelectronics communication control. > The I2C bus supports any IC production process (nmos cmos, bipolar ). Two-wire-the serial data (SDA) and serial clo
2 V, output high level minimum class I 2.5 V, Class II, Class III 2.7 V, typical value 3.4 V, input low level maximum 0.8 V, the maximum output level is 0.5 V. LS-TTL input high level minimum 2 V, output high level minimum class I 2.5 V, Class II, Class III 2.7 V, typical value 3.4 V, input low level maximum class I 0.7 V, class II and Class III 0.8 V. The maximum output is class I 0.4 V, Class II and Class III 0.5 V, and the typical value is 0.25 V. The power supply of the TTL circuit can only
integrated circuits, which are now called VLSIverylarge-scaleintegration.
An integrated circuit, as its name implies, is a circuit that combines components to achieve the required functions. So what is integrated? Think about the high school circuit, it is nothing more than resistance, capacitance, inductance, transistor, switch said small bulb is also true... Is not suitable ). Yes, the integration is basically equivalent to the replacement of these things. Someone asks, what about diode magic
, which are connected to a forward voltage through a current source or a pull-up resistor. (See) when the bus is idle, both lines are high. the output level of the device connected to the bus must be OD (open drain) or oC (open collector) Door to implement the line and function. in standard mode, I2C bus can transmit data at a speed of kb/s, while in fast mode, it can reach a speed of kb/s. In quick plus mode, the speed is 1 Mb/s, the speed is 3.4 Mb/s in the tell mode. the capacity of the bus l
) source channel is not disconnected
(2) leakage end channel to clip off
Features:
(1) controllability: input voltageVGS control output current
(2) Constant Current: Output CurrentIDBasically no output voltageVImpact of DS
Purpose: amplifier and constant current source
Basic switch circuit of MOS
Circuit disconnected
Circuit Conduction
Four basic types of MOS
Working principle of CMOS Inverter
When the NMOS tube and the PMOS tube appear in
" column for calling. (14) Select "p-channel enhanced MOs (MOS _3tep)", and there are 157 kinds of MOS in the "components" column. (15). Select "N-channel depletion junction FET (jfet_n)", and there are 263 types of JFET tubes available for calling in the "components" column. (16). Select "p-channel depletion junction FET (jfet_p)", 26 types of JFET tubes are available in the "components" column. (17) Select "n MOS power tube (power_mos_n)", and the "component" column contains 116 types of n MOS
+ +#defineLson (L, Mid, RT #defineRson (mid + 1, R, RT #defineDebug (x) cerr #definePB Push_back#definePQ Priority_queuetypedefLong Longll;typedef unsignedLong LongUll;typedef pairPll;typedef pairint,int>Pii;typedef pairint,pii>P3;//priority_queue//This is a big root heap Q//priority_queue//This is a little Gan q#defineFi first#defineSe Second//#define Endl ' \ n '#defineOKC Ios::sync_with_stdio (false); Cin.tie (0)#defineFT (A,B,C) for (int a=b; A //used to press the line#defineREP (I, J, K) f
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