I'm definitely using these reference cards, and occasionally I find mistakes or inconsistencies.

Revision 3 is released, with following changes from Revision 2:

1. CD40106 alternate part is MC14584.
   Previously it was incorrectly marked MC14568.
2. CD4572U inverter input and output pins are now correctly labeled.
   Previously the outputs were swapped with inputs.
3. CD40110 borrow and carry are active-low and are marked as such.
   Previously they were shown as active-high (positive) logic.
4. A bonus analog-like-it's-the-70s sheet is added, revision 0, with references for:
   1. LM339, LM2901 quad comparators,
   2. LM324, LM2902 quad op-amps (industry standard pinout),
   3. LM393, LM2903 double comparators,
   4. LM358, LM2904, TLC262 double op-amps (industry standard pinout),
   5. recommended connections for unused op-amps and comparators above,
   6. 2N2222/ZTX455 and 2N2907/ZTX555 transistors,
   7. 78xx and 79xx TO-252 regulators,
   8. LM334 current source pinout and design equation,
   9. TL431A voltage reference pinout and design equation