CD40110B is a dual-clocked up/down counter with a special preconditioning circuit that allows the counter to be clocked, via positive going inputs, up or down regardless of the state or timing (within 100 ns typ.) of the other clock line. The clock signal is fed into the control logic and Johnson counter after it is preconditioned. The outputs of the Johnson counter (which include anti-lock gating to avoid being locked at an illegal state) are fed into a latch. This data can be fed directly to the decoder through the latch or can be strobed to hold a particular count while the Johnson counter continues to be clocked. The decoder feeds a seven-segment bipolar output driver which can source up to 25 mA to drive LEDs and other displays such as low-voltage fluorescent and incandescent lamps. A short durating negative-going pulse appears on the BORROW output when the count changes from 0 to 9 or the CARRY output when the count changes from 9 to 0. At the other times the BORROW and CARRY outputs are a logic 1. The CARRY and BORROW outputs can be tied directly to the clock-up and clock-down lines respectively of another CD40110B for easy cascading of several counters.
P**D
Five Stars
works great
W**Z
Five Stars
ok
J**R
As advertized
Exactly as advertised.
M**L
... to make videos about logic gates and they are great!
I use these to make videos about logic gates and they are great!
G**0
Good Product
Recieved the shipment on time and in good order. All elements worked well within operational parameters. No bent pins with good electrostatic packaging.
T**A
Not New
All the ICs were used and a lot of them don't work. Had to check each gate individually to know which ICs were good. Took a lot more time to finish my project than it should've.
C**B
Electronic component
All I know is I have used just 1 piece and it works just fine.
Trustpilot
2 months ago
2 weeks ago
