MC14532B or CD4532B?:
Input | Output
Ein D7 D6 D5 D4 D3 D2 D1 D0 GS Q2 Q1 Q0 Eout
1 0 0 0 0 0 0 0 0 0 0 0 0 1
Eout HI = yep it's zero
It is CMOS, so it should be quite fast:
https://www.onsemi.com/pdf/datasheet/mc14532b-d.pdf
EDIT: TI CD4532B shows 220ns max, much slower than the comparators ...
Search found 2 matches
- Fri Jul 07, 2023 5:08 pm
- Forum: Newbies
- Topic: Quickest method to detect 8 bit zero using discrete ICs
- Replies: 36
- Views: 23708
- Tue Sep 06, 2022 4:43 am
- Forum: Hardware
- Topic: 6522 VIA partial shifts?
- Replies: 36
- Views: 4344
Re: 6522 VIA partial shifts?
Maybe I could suggest a solution that does not seem well documented anywhere... Just use an MC6850 ACIA connected to a 74LS05 (for open collector I/O). When set to 1x clock, 8 bits, odd parity, 1 stop bit, the ACIA will do everything for you, including parity checking.
The only issue I can see is ...
The only issue I can see is ...