Philips 74HCT283
The 74HC/HCT283 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. The 74HC/HCT283 add two 4-bit binary words (An plus Bn) plus the incoming carry.| Part No. | 74HCT283 |
|---|---|
| Datasheet | 74HCT283 Download |
| Manufacturer |  Philips |
| Description | 4-bit binary full adder |
| Buy | Stock & Price |
FEATURES
● High-speed 4-bit binary addition● Cascadable in 4-bit increments
● Fast internal look-ahead carry
● Output capability: standard
● ICC category: MSI
GENERAL DESCRIPTION
7A. The binary sum appears on the sum outputs (∑1 to ∑4) and the out-going carry (COUT) according to the equation: 74HC/HCT283 CIN + (A1 + B1) + 2(A2 + B2) + +4(A3 + B3) + 8(A4 + B4) = = ∑1 + 2∑2 + 4∑3 + 8∑4 + 16COUT Where (+) = plus. Due to the symmetry of the binary add function, the “283” can be used with either all active HIGH operands (positive logic) or all active LOW operands (negative logic); see function table. In case of all active LOW operands the results ∑1 to ∑4 and COUT should be interpreted also as active LOW. With active HIGH inputs, CIN must be held LOW when no “carry in” is intended. Interchanging inputs of equal weight does not affect the operation, thus CIN, A1, B1 can be assigned arbitrarily to pins 5, 6, 7, etc. See the “583” for the BCD version. QUICK REFERENCE DATA GND = 0 V; Tamb = 25...
