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JM38510/34201B2A Datasheet

  • JM38510/34201B2A

  • Texas Instruments [4-BIT BINARY FULL ADDERS WITH FAST CARRY...

  • TI

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SN54F283, SN74F283
4-BIT BINARY FULL ADDERS
WITH FAST CARRY
SDFS069A 鈥?D2932, MARCH 1987 鈥?REVISED OCTOBER 1993
鈥?/div>
鈥?/div>
鈥?/div>
Full-Carry Look-Ahead Across the
Four Bits
Systems Achieve Partial Look-Ahead
Performance With the Economy of Ripple
Carry
Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
SN54F283 . . . J PACKAGE
SN74F283 . . . D OR N PACKAGE
(TOP VIEW)
description
The
鈥睩283
is a full adder that performs the addition
of two 4-bit binary words. The sum (危) 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
鈥睩283
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 鈥?55擄C to
125擄C. The SN74F283 is characterized for
operation from 0擄C to 70擄C.
危2
B2
A2
危1
A1
B1
C0
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
B3
A3
危3
A4
B4
危4
C4
SN54F283 . . . FK PACKAGE
(TOP VIEW)
A2
危1
NC
A1
B1
4
5
6
7
8
3 2 1 20 19
18
17
16
15
14
9 10 11 12 13
B2
危
2
NC
VCC
B3
A3
危3
NC
A4
B4
NC 鈥?No internal connection
危
0
P
危
4
1
13
3
Q
10
危1
危2
危3
危4
CO
9
C4
Copyright
漏
1993, Texas Instruments Incorporated
logic symbol
鈥?/div>
5
3
14
12
6
2
15
11
7
3
CI
3
0
A1
A2
A3
A4
B1
B2
B3
B4
C0
0
鈥?This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
C0
GND
NC
C4
危
4
2鈥?

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