What is a 7485 IC?
Circuit Connections – For comparison of 4-bit numbers, SN7485 IC is used in this project. The IC is a 4-bit magnitude comparator which can be used for comparison of straight binary numbers and BCD coded numbers. The 16-pin IC has the following pin configuration – Fig. 3: Table listing pin configuration of 7485 IC.
What is the function of IC 7485?
74LS85 or SN54/7485 is a 4-bit magnitude comparator of two binary format inputs. In electronics devices besides addition and subtraction comparison of binary numbers is also important to perform the operations. To solve this issue, we use TTL based comparators.
How many bits is IC 7485?
IC 7485 is a four bit comparator IC.
What is IC number of magnitude comparator?
IC 74LS85 is a four-bit magnitude comparator that compares Binary Numbers. It checks whether a 4-bit binary number A3 A2 A1 A0 is greater than, less than or equal to another 4-bit number B3 B2 B1 B0. These devices are fully expandable to any number of bits without external gates.
What is comparator IC?
A comparator is an electronic circuit, which compares the two inputs that are applied to it and produces an output. The output value of the comparator indicates which of the inputs is greater or lesser. Please note that comparator falls under non-linear applications of ICs.
What is the use of the IC 7485?
7485 has multiple uses in servers, networking devices, digital systems, and smart electronic devices. IC simply used to compare the binary data which allows the other devices to perform other functions. The IC comes internally in some embedded systems to perform logical operations.
Where does the cascading input come from in the truth table?
The cascading inputs come from the outputs of another 7485. If you wish to create a 16 bit magnitude comparator, the other 7485 connects to the least significant byte (LSB). As for the last line of the truth table, the outputs indicate that the ‘A’ inputs are simultaneously greater and less than the ‘B’ inputs, which is contradictory.
What’s the internal voltage range of a 7485?
7485 gives output in TTL form, which makes it compatible with other TTL devices and microcontrollers. It comes in two packages, SOIC and PDIP. It comes with internal protection from clamp voltages. The voltage range for IC is 4.75 to 5.25.
How to use 74ls85 instead of 4 bit?
In the example we will use 74ls85 instead of comparing 4-bit, we will compare the 8-bit and the same method could follow to compare the data more than 8-bit. First, connect the IC with logic inputs then attach the output of the first IC with the input of the second IC.