Interchanging inputs of equal weight does not affect the operation, thus CIN, A1, B1 can be assigned arbitrarily to pins 5, 6, 7, etc. Philips Semiconductors 74HC 4-bit binary full adder with fast carry 3. All rights reserved. Product data sheet Rev. Functional diagram Fig 2. Logic diagram 6.
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Interchanging inputs of equal weight does not affect the operation, thus CIN, A1, B1 can be assigned arbitrarily to pins 5, 6, 7, etc. Philips Semiconductors 74HC 4-bit binary full adder with fast carry 3. All rights reserved. Product data sheet Rev. Functional diagram Fig 2. Logic diagram 6. Pinning information 6. Functional description 7. Fig 6. Fig 7. Application information Figure 8 shows a 3-bit adder using the 74HC Trying the operand inputs of the fourth adder A4 and B4 LOW makes S4 dependent on, and equal to, the carry from the third adder.
Figure 9, based on the same principle, shows a method of dividing the 74HC into a 2-bit and 1-bit adder. Similarly, when A3 and B3 are the same, the carry into the third stage does not influence the carry out of the third stage. Figure 11 shows a method of implementing a 5-input majority gate. Plastic or metal protrusions of 0. Plastic interlead protrusions of 0. Removed type number 74HCT Inserted family specification.
Data sheet status Level I II Data sheet status  Objective data Preliminary data Product status   Development Qualification Definition This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice.
This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. III Product data Production    Please consult the most recently issued data sheet before initiating or completing a design.
The product status of the device s described in this data sheet may have changed since this data sheet was published. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status. Definitions Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook.
Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied.
Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only.
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