Mostrar mensagens com a etiqueta electronic engineering. Mostrar todas as mensagens
Mostrar mensagens com a etiqueta electronic engineering. Mostrar todas as mensagens

sábado, 21 de outubro de 2023

How to repair the computer keyboard HP KU-1516 – Replace the controller board or the cable

How to repair the computer keyboard HP KU-1516 – Replace the controller board or the cable

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Prototype for distributing power from USB to fans to cool down electronic devices

Prototype for distributing power from USB to fans to cool down electronic devices (full project)

computer technician, computer engineering, gadgets, technology, computers, interaction design, prototype, prototyping, design thinking, information systems, computer science, maker, electronics design, electronic engineering, electrical engineering, router problems, internet speed, cooling, computer fans, ventilation, usb adapter, fast Internet, internet router, usb vcc, download speed, usb power, makers gonna make, inventor, arduino, raspberry pi project

sexta-feira, 21 de agosto de 2020

Digital Logic Gate Hex Inverter IC 74HC04 | Integrated circuit microchip


Manufacturer: STMicroelectronics 
Model: M74HC04-Z06205
Description: The M74HC04 is a high-speed CMOS hex inverter manufactured using silicon gate C2MOS technology. The internal circuit is composed of 3 stages including a buffer output which enables high noise immunity and stable output. All inputs are equipped with protection circuits to guard against static discharge and transient excess voltage.

Datasheet
https://www.st.com/resource/en/datasheet/m74hc04.pdf





Uma publicação compartilhada por Jorge Ribeiro (@jomirife) em


Features
- High speed: tPD = 8 ns (typ.) at VCC = 6 V
- Low power dissipation: ICC = 1 μA (max.) at TA = 25 °C
- High noise immunity: VNIH = VNIL = 28% VCC (min.)
- Symmetrical output impedance: |IOH| = IOL = 4 mA (min) at VCC = 4.5 V
- Balanced propagation delays: tPLH @ tPHL
- Wide operating voltage range: VCC (OPR) = 2 V to 6 V
- Pin and function compatible with 74 series 04
- ESD performance: CDM: 1 kV, HBM: 2 kV, MM: 200 V

Electrical characteristics
Stressing the device above the ratings listed in the “Absolute maximum ratings” table may cause permanent damage to the device. These are stress ratings only, and operation of the device at these or any other conditions above those indicated in the operating sections of this specification are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability