CDBE ti CDB, CMOS Dual 4-Stage Static Shift Register Data sheet acquired from Harris Semiconductor SCHSD – Revised October CDBE from Texas Instruments High-Performance Analog. Find the PDF Datasheet, Specifications and Distributor Information. CDBE datasheet, CDBE pdf, CDBE data sheet, datasheet, data sheet, pdf, Texas Instruments, CMOS Dual 4-Stage Static Shift Register.
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Wiring a shift register.
Wiring a shift register Thu Jun 13, The cd4015bs is so I can use just a few pins by daisy chaining them together to drive the displays rather than the or-so that I would need otherwise. The displays are common anode, so in order to control them I need to sink a current through the chips.
I am very inexperienced with all this stuff, and the data sheet looks complicated and daunting and I don’t really know what information I actually need from it. I am planning to use the 5V pin on the Pi to drive it But for now whilst I’m experimenting I’m using a 6V battery pack.
Also I need some assistance with the wiring; firstly, how do I connect the two 4-bit shift registers in each chip to make an 8-bit one? And in all of these I need to connect all of the clock lines together don’t I?
What value limiting resistor do I need between the Pi and data input and the Pi and the clock input? The resistors I’ve drawn to the left with no value next to it I’m also not sure what to connect the reset pins to so please confirm this.
This is the circuit diagram I’ve cr4015be up with, if I’ve made any mistakes please correct them. You do not have the required permissions to view the files attached to this post.
CD4015BE DATASHEET PDF
It’s inputs are 5V logic. Look at the table “Static electrical characteristics” and you will find that “Input high voltage” is 3.
The output sinks 2. Take a look at this chip as an alternative: For easier prototyping you might want a through-hole DIP package. Here’s one from TI: Last edited by PiGraham on Thu Jun 13, Did I daisy chain them correctly?
CDBE Datasheet pdf – CMOS Dual 4-Stage Static Shift Register – Texas Instruments
And what do I connect the resets to? Steve S No, I can’t think of anything funny that won’t offend someone if they want it to Wiring a shift register Thu Jun 13, 2: I may or may not know what I’m talking about Wiring a shift register Thu Jul 11, 7: Like I said I’m fairly new to this hardware malarky so am happy to have the errors in my logic pointed out.
I’m also intrigued by http: Wiring a shift register Thu Jul 11, Thanks for the reply, and it’s good to know I’m reading the datasheets right. Hopefully be able to keep the magic smoke inside my Pi. Wiring a shift register Tue Jul 30, Board index All times are UTC.