Transistor inverter instead of 7404

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01/17/04 23:25
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#62809 - Transistor inverter instead of 7404

Hi everyone,

My project involves using a 8051 derivative running at 8MHz (or more) powered at 3.3Volts.

In my design i need to use an inverter as part of the address decoder (actually the inverter IS the address decoder, connected on A15).

For the prototype board i am using only one inverter gate from a 74HC04 (at 3.3V again). Due to cost and board footprint i would prefer using an alternative solution.

Does anyone have experience in connecting a transistor as an inverter for such system specifications (voltage, frequency) ? Can you recommend the transistor type and if experience helps the external resistor values to use (although this i calculate it my self) ?

Thanks,

Panos

List of 16 messages in thread

Topic Author Date
Transistor inverter instead of 7404              01/01/70 00:00
   RE: Transistor inverter instead of 7404              01/01/70 00:00
      RE: Transistor inverter instead of 7404              01/01/70 00:00
         RE: Transistor inverter instead of 7404              01/01/70 00:00
            RE: Transistor inverter instead of 7404              01/01/70 00:00
               RE: Transistor inverter instead of 7404              01/01/70 00:00
                  RE: Transistor inverter instead of 7404              01/01/70 00:00
                  RE: Transistor inverter instead of 7404              01/01/70 00:00
                     RE: Transistor inverter instead of 7404              01/01/70 00:00
                        RE: Transistor inverter instead of 7404              01/01/70 00:00
                           RE: With 10K Resistor              01/01/70 00:00
   RE: Transistor inverter instead of 7404              01/01/70 00:00
      RE: Transistor inverter instead of 7404              01/01/70 00:00
         RE: Transistor inverter instead of 7404              01/01/70 00:00
      RE: Transistor inverter instead of 7404              01/01/70 00:00
      RE: Transistor inverter instead of 7404              01/01/70 00:00

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Topic	Author	Date
*Transistor inverter instead of 7404*		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: With 10K Resistor		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00
RE: Transistor inverter instead of 7404		01/01/70 00:00