The ´F283 is a full adder that performs the addition of two 4-bit binary words. The sum ( ) outputs are provided for each bit and the resultant carry (C4) output is obtained from the fourth bit.
The device features full internal look-ahead across all four bits generating the carry term C4 in typically 5.7 ns. This capability provides the system designer with partial look-ahead performance at the economy and reduced package count of a ripple-carry implementation.
The adder logic, including the carry, is implemented in its true form. End-around carry can be accomplished without the need for logic or level inversion.
The ´F283 can be used with either all-active-high (positive logic) or all-active-low (negative logic) operands.
The SN54F283 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74F283 is characterized for operation from 0°C to 70°C.
|Part number||Order||Technology Family||VCC (Min) (V)||VCC (Max) (V)||Bits (#)||Voltage (Nom) (V)||F @ nom voltage (Max) (MHz)||ICC @ nom voltage (Max) (mA)||tpd @ nom Voltage (Max) (ns)||IOL (Max) (mA)||IOH (Max) (mA)||Function||Type||Rating||Operating temperature range (C)||Package Group|
||F||4.5||5.5||4||5||70||55||10.5||20||-1||Arithmetic||Binary||Catalog||0 to 70||
PDIP | 16
SOIC | 16
SO | 16
|SN54F283||Samples not available||F||4.5||5.5||4||5||70||55||10.5||20||-1||Arithmetic||Binary||Military||-55 to 125||
CDIP | 16
CFP | 16
LCCC | 20