N74F283D [NXP]
4-bit binary full adder with fast carry; 4位二进制全加器与快速进
| 型号： | N74F283D |
| 厂家： | 
NXP |
| 描述： | 4-bit binary full adder with fast carry |
| 文件： | 总10页 (文件大小：118K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74F283
4-bit binary full adder with fast carry
Product specification
IC15 Data Handbook
1989 Mar 03
Philips
Semiconductors
Philips Semiconductors
Product specification
4-bit binary full adder with fast carry
74F283
FEATURES
PIN CONFIGURATION
• High speed 4-bit addition
1
2
3
4
5
Σ1
16
15
14
13
12
11
10
V
CC
• Cascadable in 4-bit increments
• Fast Internal carry look-ahead
B1
B2
A1
A2
Σ0
Σ2
DESCRIPTION
The 74F283 adds two 4-bit binary words (An plus Bn) plus the
incoming carry. The binary sum appears on the sum outputs
A0
B0
A3
B3
Σ3
C
6
7
8
(Σ0–Σ3) and the outgoing carry (C
) according to the equation:
OUT
C
0
1
2
3
IN
C
+2 (A0+B0)+2 (A1+B1)+2 (A2+B2)+2 (A3+B3)
IN
=Σ0+2Σ1+4Σ2+8Σ3+16C
GND
9
OUT
OUT
where (+)=plus
SF00852
Due to the symmetry of the binary add function, the 74F283 can be
used with either all active-High operands (positive logic) or with all
active-Low operands (negative logic). See Function Table. In case of
all active-Low operands (negative logic) the results Σ1–Σ4 and C
should be interpreted also as active-Low. With active-High inputs,
TYPICAL
PROPAGATION
DELAY
TYPICAL
SUPPLY CURRENT
(TOTAL)
OUT
TYPE
C
cannot be left open; it must be held Low when no “carry in” is
IN
intended. Interchanging inputs of equal weight does not affect the
74F283
6.5ns
40mA
operation, thus A0, B0, C can arbitrarily be assigned to pins 5, 6,
IN
7, etc.
ORDERING INFORMATION
Due to pin limitations, the intermediate carries of the 74F283 are not
brought out for use as inputs or outputs. However, other means can
be used to effectively insert a carry into, or bring a carry out from, an
intermediate stage.
COMMERCIAL RANGE
= 5V ±10%,
V
DESCRIPTION
PKG DWG #
CC
T
amb
= 0°C to +70°C
16-pin plastic DIP
16-pin plastic SO
N74F283N
SOT38-4
N74F283D
SOT109-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
74F(U.L.)
LOAD VALUE
PINS
DESCRIPTION
HIGH/LOW
1.0/2.0
1.0/2.0
1.0/1.0
50/33
HIGH/LOW
20µA/1.2mA
20µA/1.2mA
20µA/0.6mA
1.0mA/20mA
1.0mA/20mA
A0 - A3
B0 - B3
A operand inputs
B operand inputs
Carry input
C
IN
C
Carry output
OUT
Σ0–Σ3
Sum outputs
50/33
NOTE:
One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state.
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
Σ
5
0
5
6
3
2
14 15 12 11
3
P
14
3
0
12
A0 B0 A1 B1 A2 B2 A3 B3
0
3
4
1
Σ
C
C
OUT
7
9
IN
6
13
10
2
Σ0
Σ1
Σ2
Σ3
Q
15
11
3
4
1
13
10
7
CI
CO
9
V
=Pin 16
CC
GND=Pin 8
SF00853
SF00854
2
1989 Mar 03
853-0364 95944
Philips Semiconductors
Product specification
4-bit binary full adder with fast carry
74F283
LOGIC DIAGRAM
9
C
OUT
11
B3
12
A3
10
Σ3
15
B2
13
14
A2
Σ2
2
B1
1
4
Σ1
Σ0
3
A1
6
B0
5
A0
7
C
V
=Pin 16
IN
CC
GND=Pin 8
SF00855
FUNCTION TABLE
PINS
C
A0
A1
H
1
A2
L
A3
H
1
B0
H
1
B1
L
B2
L
B3
H
1
Σ0
H
1
Σ1
H
1
Σ2
L
Σ3
L
C
Example:
1001
1010
IN
OUT
H
Logic levels
Active High
Active Low
L
L
0
1
10011
0
1
0
0
0
0
0
1
(10+9=19)
(carry+5+6=12)
0
1
0
0
1
1
0
0
0
1
1
0
H = High voltage level
= Low voltage level
L
3
1989 Mar 03
Philips Semiconductors
Product specification
4-bit binary full adder with fast carry
74F283
Figure A shows how to make a 3-bit adder. Tying the operand inputs
of the fourth adder (A3, B3) Low makes Σ3 dependent only on, and
equal to, the carry from the third adder. Using somewhat the same
principle, Figure B shows a way of dividing the 74F283 into a 2-bit
and a 1-bit adder. The third stage adder (A2, B2, Σ2) is used as
means of getting a carry (C10) signal into the fourth stage adder (via
A2 and B2) and bringing out the carry from the second stage on Σ2.
Note that as long as A2 and B2 are the same, whether High or Low,
they do not influence Σ2. Similarly, when A2 and B2 are the same,
the carry into the third stage does not influence the carry out of the
third stage. Figure C shows a method of implementing a 5-input
encoder where the inputs are equally weighted. The outputs Σ0, Σ1
and Σ2 present a binary number of inputs I0–I4 that are true.
Figure D shows one method of implementing a 5-input majority gate.
When three or more of the inputs I0–I4 are true, the output M4 is
true.
APPLICATIONS
C10
A0 B0 A1 B1
A10 B10
L
A0 B0 A1 B1 A2 B2 A3 B3
A0 B0 A1 B1 A2 B2 A3 B3
C
C
C
C
C
OUT
C
IN
OUT
IN
IN
11
Σ0
Σ1
Σ2
Σ3
Σ0
Σ0
Σ1
Σ1
Σ2
Σ3
C3
C2 Σ10
A. 3-bit Adder
B. 2-bit and 1-bit Adder
I2
I2
I0 I1
L
I3 I4
I0 I1
I3
I4
A0 B0 A1 B1 A2 B2 A3 B3
A0 B0 A1 B1 A2 B2 A3 B3
C
C
C
C
OUT
IN
OUT
IN
Σ0
Σ1
Σ2
Σ3
Σ0
Σ1
Σ2
Σ3
0
1
2
2
2
2
M4
C. 5-input Encoder
D. 5-input Majority Gate
SF00856
4
1989 Mar 03
Philips Semiconductors
Product specification
4-bit binary full adder with fast carry
74F283
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the
operating free-air temperature range.)
SYMBOL
PARAMETER
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
UNIT
V
V
V
Supply voltage
Input voltage
Input current
CC
V
IN
I
IN
mA
V
V
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air temperature range
Storage temperature
–0.5 to V
40
OUT
OUT
CC
I
mA
°C
°C
T
amb
0 to +70
T
stg
–65 to +150
RECOMMENDED OPERATING CONDITIONS
LIMITS
Nom
SYMBOL
PARAMETER
UNIT
Min
4.5
2.0
Max
V
CC
V
IH
V
IL
Supply voltage
5.0
5.5
V
V
High-level input voltage
Low-level input voltage
Input clamp current
0.8
–18
–1
V
I
I
I
mA
mA
mA
°C
IK
High-level output current
Low-level output current
Operating free-air temperature range
OH
OL
20
T
amb
0
70
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
NO TAG
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
TYP
MIN
MAX
NO TAG
V
V
V
V
V
V
V
= MIN, V = MAX ±10%V
2.5
2.7
CC
IL
CC
V
High-level output voltage
V
V
OH
= MIN, I = MAX
±5%V
3.4
0.30
0.30
–0.73
IH
OH
CC
= MIN, V = MAX ±10%V
0.50
0.50
–1.2
100
20
CC
IL
CC
CC
V
V
Low-level output voltage
OL
= MIN, I = MAX
±5%V
IH
OL
Input clamp voltage
= MIN, I = I
IK
V
IK
CC
CC
CC
I
I
I
Input current at maximum input voltage
High-level input current
= MAX, V = 7.0V
µA
I
I
= MAX, V = 2.7V
µA
IH
IL
I
C
only
–0.6
–1.2
–150
55
mA
mA
mA
mA
IN
I
Low-level input current
V
CC
= MAX, V = 0.5V
I
An, Bn
NO TAG
I
I
Short-circuit output current
V
V
= MAX
= MAX
–60
OS
CC
4
Supply current (total)
40
CC
CC
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at V = 5V, T = 25°C.
CC
amb
3. Not more than one output should be shorted at a time. For testing I , the use of high-speed test apparatus and/or sample-and-hold
OS
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, I tests should be performed last.
OS
4. I should be measured with all outputs open and the following conditions:
CC
Condition1: all inputs grounded
Condition 2: all B inputs Low, other inputs at 4.5V
Condition 3: all inputs at 4.5V
5
1989 Mar 03
Philips Semiconductors
Product specification
4-bit binary full adder with fast carry
74F283
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
V
= +25°C
T
V
= 0°C to +70°C
= +5.V ± 10%
amb
amb
CC
= +5.V
TEST
CONDITIONS
CC
SYMBOL
PARAMETER
UNIT
C = 50pF,
R = 500Ω
L
C = 50pF,
L
R = 500Ω
L
L
MIN
TYP
MAX
MIN
MAX
t
t
Propagation delay
3.5
4.0
7.0
7.0
9.5
9.5
3.0
3.5
10.5
10.5
ns
ns
PLH
PHL
Waveform 1, 2
Waveform 1, 2
Waveform 2
C
to Σi
IN
t
t
Propagation delay
Ai or Bi to Σi
3.5
3.5
7.0
7.0
9.5
9.5
2.5
3.5
10.5
10.5
ns
ns
PLH
PHL
t
t
Propagation delay
3.5
3.0
5.7
5.4
7.5
7.0
3.5
2.5
8.5
8.0
ns
ns
PLH
PHL
C
to C
IN
OUT
t
t
Propagation delay
Ai or Bi to C
3.5
2.5
5.7
5.3
7.5
7.0
3.0
2.5
8.5
8.0
ns
ns
PLH
PHL
Waveform 1, 2
OUT
AC WAVEFORMS
For all waveforms, V =1.5V.
M
Ai, Bi, C
IN
V
V
M
V
M
V
M
M
Ai, Bi, C
IN
t
t
t
t
PHL
PLH
PLH
PHL
Σi, C
OUT
V
M
V
M
V
V
M
M
Σi, C
OUT
SF00858
SF00857
Waveform 1. Propagation Delay
Waveform 2. Propagation Delay
Operands and Carry Inputs to Outputs
Operands and Carry Inputs to Outputs
TEST CIRCUIT AND WAVEFORM
t
AMP (V)
0V
V
w
CC
90%
90%
NEGATIVE
PULSE
V
V
M
M
10%
10%
V
V
OUT
IN
PULSE
GENERATOR
D.U.T.
t
t )
t
t )
THL ( f
TLH ( r
R
C
R
L
t
t )
T
L
t
t )
TLH ( r
THL ( f
AMP (V)
0V
90%
M
90%
POSITIVE
PULSE
V
V
M
10%
10%
Test Circuit for Totem-Pole Outputs
DEFINITIONS:
t
w
Input Pulse Definition
INPUT PULSE REQUIREMENTS
R
L
C
L
R
T
=
=
=
Load resistor;
see AC ELECTRICAL CHARACTERISTICS for value.
Load capacitance includes jig and probe capacitance;
see AC ELECTRICAL CHARACTERISTICS for value.
family
V
rep. rate
t
w
t
t
THL
amplitude
M
TLH
Termination resistance should be equal to Z
pulse generators.
of
OUT
2.5ns 2.5ns
74F
3.0V
1.5V
1MHz
500ns
SF00006
6
1989 Mar 03
Philips Semiconductors
Product specification
4-bit binary full adder with fast carry
74F283
DIP16: plastic dual in-line package; 16 leads (300 mil)
SOT38-4
7
1989 Mar 03
Philips Semiconductors
Product specification
4-bit binary full adder with fast carry
74F283
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
8
1989 Mar 03
Philips Semiconductors
Product specification
4-bit binary full adder with fast carry
74F283
NOTES
9
1989 Mar 03
Philips Semiconductors
Product specification
4-bit binary full adder with fast carry
74F283
Data sheet status
[1]
Data sheet
status
Product
status
Definition
Objective
specification
Development
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
Preliminary
specification
Qualification
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.
Product
specification
Production
This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Righttomakechanges—PhilipsSemiconductorsreservestherighttomakechanges, withoutnotice, intheproducts, includingcircuits,standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Copyright Philips Electronics North America Corporation 1999
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code
Date of release: 04-99
9397-750-05591
Document order number:
Philips
Semiconductors
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