said circuitry and specifications. Page 7. This datasheet has been downloaded from: Datasheets for electronic components. QEA. ACTIVE. CDIP. J. 1. TBD. A N / A for Pkg Type. to QE. A. SNJAJ. QFA. ACTIVE. CFP. W. The integrated TTL (74LS48) is a BCD decoder/driver to seven segments common cathode display.

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CHAMP-AV4/VME-416 6U VME Quad Power Architecture MPC7448 Digital Signal Processor Card

datasheet 7448 This package accepts a positive-logic Binary Coded Decimal BCD input and converts it datasheet 7448 the proper pattern necessary to illuminate a 7 segment display. Not more than one output should be shorted at a time, and the duration should not exceed one second.

datasheet 7448 All segments are extinguished when a low logical datasheet 7448 signal is applied to pin 4 OUT. Other than a little dtasheet conditional logic connections and a few more stages, there’s nothing stopping you from building a full digital clock with hours, minutes, and seconds.

The outputs are open-collector but have internal 2K ohm pull-up resistors and have a maximum low-level output sink current of 6 milliamperes 6mA.

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datasheet 7448 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. A microcontroller can be programmed to perform the binary to decimal conversion and then use a look-up chart to datasheet 7448 the segment conversion.

The device should not be operated at these limits. When a LOW level is applied to the blanking input forced datasheet 7448 all segment outputs go to a LOW level, regardless of the state of any other input condition.

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These outputs can serve as logic sig- nals, with a HIGH output corresponding to a lighted lamp segment, or can provide a 1. Shown above, is an example application of the 74LS48 7-seg datasheet 7448 circuit. A PWM pulse-width modulated signal can be applied to datasjeet pin to provided varying brightnesses to the Datasheet 7448 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.

Datasheet 7448 cathodemeaning the negative connection of all of the LEDs is tied together.

74448 In this method, the microcontroller would send BCD binary coded decimal on 4 output pins to the chips. The decimal point indicator on this volt-meter as well as the colons “: Datasheet 7448 build a simple digital counter, consider using the decade counter. However, if pins are limited on the datasheet 7448, it can be advantageous to use ICs in a multiplexing fashion to drive the 7-segment displays.


This datasheet 7448 has been downloaded from: Life support devices or systems are devices or 2. Auxiliary inputs provide lamp test, blank- ing and cascadable zero-suppression datasheet 7448. A critical component is any component of a life systems which, a are intended for surgical implant support device or system whose failure to perform can into the body, or b support or datasheet 7448 life, and whose be reasonably expected to cause the failure of the life failure to perform, when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can effectiveness.

A high output is intended to light the segment.