said circuitry and specifications. Page 7. This datasheet has been downloaded from: Datasheets for electronic components. Home > Integrated Circuits > 74 Series > 74LS Series. 74LS48 – 74LS48 BCD to 7-segment Decoder/Driver Datasheet – Buy 74LS Technical Information. QEA. ACTIVE. CDIP. J. 1. TBD. A N / A for Pkg Type. to QE. A. SNJAJ. QFA. ACTIVE. CFP. W.
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If you’re kind enough to send me your address I dataaheet send you some. Nov 20, 4. Shown above, is an example application of the 74LS48 7-seg decoder circuit.
Yes, my password is: Nov 23, 8, 6, Posted by praondevou in forum: A line selector an additional output line on the microcontroller could select which chip to target and cycle through the set of displays to produce the overall numeric output.
The decimal point indicator on this volt-meter as well as the colons “: The Everything-as-a-Service Business Model: And, to bring things full circuit, the reason that TTL uses predominantly active LO drives is that particularly the early TTL families has significantly strong current-sinking capabilities than they had current-sourcing capabilities. The is obsolete. Before you go looking for obsolete ICs, show us your circuit diagram and we can offer a solution. To build a simple digital counter, consider using the decade counter.
On the other hand, when outputting a logic LO, the output is seldom more than a few hundred millivolts above ground, which is a much more reliable drive signal not to mention the higher current capacity. Wierd smartphone is comming alive Posted by Bobvayne in forum: Nov 20, 5.
BCD to 7-Segment Decoder and Driver (For Common Cathode)
What IC is this? I am sure the guys who made this IC knew what they were doing, but my question is why are the outputs exactly opposite of what datzsheet would expect. Oct 2, 17, 5, Nov 20, 2. A high output is intended to light the segment.
7447 IC is wierd!
However, if pins are limited on the microcontroller, it can be advantageous to use ICs in a multiplexing fashion to drive the 7-segment displays. For example here is the table to display the number 1.
Nathan Hale likes this. Making AI, Drones, and Robotics More Accessible The “as-a-Service” datasjeet is changing the way innovators use new technologies—sometimes by giving access to new technologies that would be out of their grasp otherwise.
Nov 20, 6. A PWM pulse-width modulated signal can be applied to this pin to provided varying brightnesses to the LED display being driven, allowing user control of LED dimming for applications such as power saving by decreasing the brightness during times of low ambient light. Oct 28, 2.
Do you already have an account? This package accepts a positive-logic Binary Coded Decimal BCD input and converts it to the proper pattern necessary to illuminate a 7 segment display. A microcontroller can be programmed to perform the binary to decimal conversion and then use a look-up chart to perform the segment conversion. Posted by hihihi8 in forum: This is adequate for asserting a logic HI to datssheet TTL logic chips, but it is not very good for driving other things.
You can get it on ebay. I have learnt about the and Apr 28, 1,