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  2. I²C - Wikipedia

    en.wikipedia.org/wiki/I²C

    An example schematic with one controller (a microcontroller), three target nodes (an ADC, a DAC, and a microcontroller), and pull-up resistors R p. I 2 C uses only two signals: serial data line (SDA) and serial clock line (SCL). Both are bidirectional and pulled up with resistors. [3]

  3. IC power-supply pin - Wikipedia

    en.wikipedia.org/wiki/IC_power-supply_pin

    Examples of such systems include modern cell phones, with GND and voltages such as 1.2 V, 1.8 V, 2.4 V, 3.3 V, and PCs, with GND and voltages such as −5 V, 3.3 V, 5 V, 12 V. Power-sensitive designs often have multiple power rails at a given voltage, using them to conserve energy by switching off supplies to components that are not in active use.

  4. Power Management Bus - Wikipedia

    en.wikipedia.org/wiki/Power_Management_Bus

    Some devices may expose such attributes in multiple "pages", as for example one page managing each power supply rail (maybe 3.3V, 5V, 12V, −12V, and a programmable supply supporting 1.0–1.8V). The device may set warning and fault limits, where crossing a limit will alert the host and possibly trigger fault recovery.

  5. Asynchronous serial communication - Wikipedia

    en.wikipedia.org/wiki/Asynchronous_serial...

    Before signaling will work, the sender and receiver must agree on the signaling parameters: Full or half-duplex operationThe number of bits per character -- currently almost always 8-bit characters, but historically some transmitters have used a five-bit character code, six-bit character code, or a 7-bit ASCII.

  6. UEXT - Wikipedia

    en.wikipedia.org/wiki/UEXT

    If the 3.3 V/5 V jumper is set to 5 V, this jumper also changes the voltage available at pin #1 of UEXT as well as the voltage levels of all data signals available there (UART, SPI, I2C). As the UEXT standard only defines 3.3 V, many UEXT modules may not be 5 V tolerant, and thus get damaged if the board has such jumper set to 5V.

  7. Integrated circuit layout - Wikipedia

    en.wikipedia.org/wiki/Integrated_circuit_layout

    Layout view of a simple CMOS operational amplifier. In integrated circuit design, integrated circuit (IC) layout, also known IC mask layout or mask design, is the representation of an integrated circuit in terms of planar geometric shapes which correspond to the patterns of metal, oxide, or semiconductor layers that make up the components of the integrated circuit.

  8. Circuit diagram - Wikipedia

    en.wikipedia.org/wiki/Circuit_diagram

    A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations.

  9. Smart card - Wikipedia

    en.wikipedia.org/wiki/Smart_card

    VCC: Power supply. RST: Reset signal, used to reset the card's communications. CLK: Provides the card with a clock signal, from which data communications timing is derived. GND: Ground (reference voltage). VPP: ISO/IEC 7816-3:1997 designated this as a programming voltage: an input for a higher voltage to program persistent memory (e.g., EEPROM ...