74HC04

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74hc04dip.png

The 74HC04 is a Hex inverter logic chip.

This logic chip is used in some MVS for the Battery-backed RAM, in the AES for the color burst oscillator and main system clock and also, in the AES and some MVS for the Memory card interface.

Found in DILP-14 packages.

Pinout

74hc04sch.png

Signals

Memory card interface