参数资料
型号: SN54F283J
厂商: TEXAS INSTRUMENTS INC
元件分类: 算术逻辑单元
英文描述: F/FAST SERIES, 4-BIT ADDER/SUBTRACTOR, TRUE OUTPUT, CDIP16
封装: 0.300 INCH, CERAMIC, DIP-16
文件页数: 1/16页
文件大小: 680K
代理商: SN54F283J
SN54F283, SN74F283
4BIT BINARY FULL ADDERS
WITH FAST CARRY
SDFS069A D2932, MARCH 1987 REVISED OCTOBER 1993
Copyright
1993, Texas Instruments Incorporated
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
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
description
The
′F283 is a full adder that performs the addition
of two 4-bit binary words. The sum (
Σ) 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.
logic symbol
Σ
0
6
B1
0
5
A1
3
A2
14
A3
3
12
A4
2
B2
15
B3
3
11
B4
CI
7
C0
C4
9
CO
Σ1
4
0
1
13
10
3
Σ2
Σ3
Σ4
P
Q
Σ
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.
SN54F283 ...J PACKAGE
SN74F283 ...D OR N PACKAGE
(TOP VIEW)
32
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
A3
Σ3
NC
A4
B4
A2
Σ1
NC
A1
B1
SN54F283 . . . FK PACKAGE
(TOP VIEW)
B2
Σ
NC
C4
4
B3
C0
GND
NC
NC No internal connection
V
CC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Σ2
B2
A2
Σ1
A1
B1
C0
GND
VCC
B3
A3
Σ3
A4
B4
Σ4
C4
2
Σ
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.
相关PDF资料
PDF描述
SN74F283NE4 F/FAST SERIES, 4-BIT ADDER/SUBTRACTOR, TRUE OUTPUT, PDIP16
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SN54GTL1655HV GTL/TVC SERIES, DUAL 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQFP68
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