DM74283
DM74283 is 4-Bit Binary Full Adder (with Fast Carry) manufactured by National Semiconductor.
Description
The ’283 high speed 4-bit binary full adders with internal carry lookahead accept two 4-bit binary words (A0- A3 B0
- B3) and a Carry input (C0) They generate the binary Sum outputs (S0- S3) and the Carry output (C4) from the most significant bit They operate with either active HIGH or active LOW operands (positive or negative logic)
Connection Diagram
Dual-In-Line Package
TL F 9786
- 1
Order Number 54283DMQB 54283FMQB or DM74283N See NS Package Number J16A N16E or W16A
Pin Names A0- A3 B0- B3 C0 S0- S3 C4
Description
A Operand Inputs B Operand Inputs Carry Input Sum Outputs Carry Output
C1995 National Semiconductor Corporation
TL F 9786
RRD-B30M115 Printed in U S A
Absolute Maximum Ratings (Note)
If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Input Voltage Operating Free Air Temperature Range 54 DM74 Storage Temperature Range 7V 5 5V b 55 C to a 125 C 0 C to a 70 C b 65 C to a 150 C
Note The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed The device should not be operated at these limits The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum ratings The ‘‘Remended Operating Conditions’’ table will define the conditions for actual device operation
Remended Operating Conditions
Symbol VCC VIH VIL IOH IOL TA Parameter Min Supply Voltage High Level Input Voltage Low Level Input Voltage High Level Output Current Low Level Output Current Free Air Operating Temperature b 55
54283 Nom 5 Max 55 Min 4 75 2 08 b0 4
DM74283 Nom 5 Max 5 25
Units V V 08 b0 4
45 2
V m A m A C
16 125 0
16 70
Electrical Characteristics
Over remended operating free air temperature range (unless otherwise noted) Symbol VI VOH VOL II IIH IIL IOS Parameter Input Clamp Voltage High Level Output Voltage Low Level Output Voltage Input...