74F283 4-Bit Binary Full Adder with Fast Carry
April 1988
Revised August 1999
74F283
4-Bit Binary Full Adder with Fast Carry
General Description
The 74F283 high-speed 4-bit binary full adder with internal
carry lookahead accepts two 4-bit binary words (A
0
鈥揂
3
,
B
0
鈥揃
3
) and a Carry input (C
0
). It generates the binary Sum
outputs (S
0
鈥揝
3
) and the Carry output (C
4
) from the most
significant bit. The 74F283 will operate with either active
HIGH or active LOW operands (positive or negative logic).
Ordering Code:
Order Number
74F283SC
74F283SJ
74F283PC
Package Number
M16A
M16D
N16E
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Unit Loading/Fan Out
Pin Names
A
0
鈥揂
3
B
0
鈥揃
3
C
0
S
0
鈥揝
3
C
4
Description
A Operand Inputs
B Operand Inputs
Carry Input
Sum Outputs
Carry Output
U.L.
Input I
IH
/I
IL
20
碌A(chǔ)/鈭?.2
mA
20
碌A(chǔ)/鈭?.2
mA
20
碌A(chǔ)/鈭?.6
mA
鈭?
mA/20 mA
鈭?
mA/20 mA
HIGH/LOW Output I
/I
OL
1.0/2.0
1.0/2.0
1.0/1.0
50/33.3
50/33.3
漏 1999 Fairchild Semiconductor Corporation
DS009513
www.fairchildsemi.com