Part Number: SN7402
The input(s) is(are) sinking substantial current (milliamperes) when a logical high (+5 VDC / Vcc in this case) is applied to the input. My understanding from decades of practice, and from the specification sheet, is that TTL inputs…
Part Number: TXS0108E Other Parts Discussed in Thread: SN7402 We are using the TXS0108E to connect 3.3V logic to 5.0V logic based on SN7402. It does not work. With more than 4 SN7402 inputs VL above 1.2 V.
If HP 1670D analyzer connected to TXS0108E outputs…
Other Parts Discussed in Thread: SN74LV02A Hello,
I am looking for an alternative circuit for the typical oscillator circuit that is using a SN7402N with crystal. Can anyone suggest a circuit or modern chip that does the same job? The circuit is from a vintage…
Hello,
I am looking for an alternative circuit for the typical oscillator circuit that is using a SN7402N with crystal. Can anyone suggest a circuit or modern chip that does the same job? The circuit is from a vintage computer: