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Release 4 is out
01/25/2024 at 22:13 • 0 commentsSince each reference card has its own revision, it doesn't make sense to call a release "revision". This is the 4th release, and it contains a mix of sheet revisions.
Sheet revisions in this release are listed below, one numbered sheet per entry.
- rev 2
- rev 3
- rev 3
- rev 3
- rev 2
- rev 3
- rev 2
- rev 2
- rev 3
- rev 3
- rev 3
- rev 3
- rev 4
- (unnumbered bonus sheet) rev 0
Index pages i through viii are "fossil revision", without a revision mark.
Changes:
- All active-low input and output pins have an inversion circle. Previously only some pins had the inversion circle. Pages affected: 4, 6, 9, 10, 11, 12, 13
- Fixed CD40110 LE pin/signal logic. It is now correctly marked active-low. Page 13.
- Fixed CD4511 LE pin/signal logic. It is now correctly marked active-low. Page 10.
- Fixed CD4543 LE pin/signal logic. It is now correctly marked active-high. Page 10.
- Added legend for the meaning of LE signals on page 10.
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Revision 3 is out
01/24/2024 at 23:42 • 0 commentsI'm definitely using these reference cards, and occasionally I find mistakes or inconsistencies.
Revision 3 is released, with following changes from Revision 2:- CD40106 alternate part is MC14584.
Previously it was incorrectly marked MC14568. - CD4572U inverter input and output pins are now correctly labeled.
Previously the outputs were swapped with inputs. - CD40110 borrow and carry are active-low and are marked as such.
Previously they were shown as active-high (positive) logic. - A bonus analog-like-it's-the-70s sheet is added, revision 0, with references for:
- LM339, LM2901 quad comparators,
- LM324, LM2902 quad op-amps (industry standard pinout),
- LM393, LM2903 double comparators,
- LM358, LM2904, TLC262 double op-amps (industry standard pinout),
- recommended connections for unused op-amps and comparators above,
- 2N2222/ZTX455 and 2N2907/ZTX555 transistors,
- 78xx and 79xx TO-252 regulators,
- LM334 current source pinout and design equation,
- TL431A voltage reference pinout and design equation
- CD40106 alternate part is MC14584.