Search found 4 matches: 74hc161 chain

Searched query: 74hc161 chain

by Sheep64
Thu Nov 11, 2021 5:12 pm
Forum: General Discussions
Topic: Extra large keyboard
Replies: 4
Views: 4434

Re: Extra large keyboard

... to define a device type with the top bit set for any device which daisy-chains and a device type with the top bit clear as a leaf node . This allows ... Bus has fields of similar size and type.

The counter (typically 74HC161) may be configured to scan any quantity of rows. The negative edge of ...
by Sheep64
Thu Feb 11, 2021 2:55 pm
Forum: Hardware
Topic: Project B-Frame: Dividing Pulses By 2^24
Replies: 1
Views: 876

Project B-Frame: Dividing Pulses By 2^24

... extension of previous work. I've previously made a flip-flop circuit and chain of 4017 decimal counters as part of a motion capture system. I've also ... more 4 bit binary counters. During development, this requires about 20 74HC161 counter chips and two or more breadboards. That's the easy part. The ...
by Sheep64
Thu Feb 11, 2021 2:38 pm
Forum: Hardware
Topic: Project A-Frame: Idiot-Proof Indicator Light
Replies: 4
Views: 1169

Project A-Frame: Idiot-Proof Indicator Light

... a multi-meter.

The first task using the indicator lights is to make a chain of 74HC161 binary counters . From this, it was immediately apparent that I would be using indicators almost exclusively in pairs. Therefore, my profligate use of LEDs extends to clusters of eight. The first pair of ...
by vfxsoup
Tue Dec 17, 2019 4:11 pm
Forum: Hardware
Topic: My6502 - A 74-Series 6502
Replies: 66
Views: 10827

Re: My6502 - A 74-Series 6502

... the self-counting registers make use of a binary counter chip like the 74HC161, which can act as both the register and the counter in one, so all I need do is assert count enable and on the clock rising edge the increment will happen. It also allows me to chain PCL and PCH so that PCH is incremented ...