N74F298N,602 [NXP]
74F298 - Quad 2-input multiplexer with storage DIP 16-Pin;
| 型号： | N74F298N,602 |
| 厂家： | 
NXP |
| 描述： | 74F298 - Quad 2-input multiplexer with storage DIP 16-Pin |
| 文件： | 总8页 (文件大小：87K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74F298
Quad 2-input multiplexer with storage
Product specification
IC15 Data Handbook
1989 Aug 14
Philips
Semiconductors
Philips Semiconductors
Product specification
Quad 2-input multiplexer with storage
74F298
FEATURES
PIN CONFIGURATION
• Fully synchronous operation
• Select from two data sources
• Buffered, negative edge triggered clock
I1b
I1a
I0a
I0b
I1c
1
2
3
4
5
16
V
CC
15 Qa
14 Qb
13 Qc
12 Qd
11 CP
• Provides the equivalent of function capabilities of two separate
MSI functions (74F157 and 74F175)
DESCRIPTION
I1d
I0d
6
7
8
The 74F298 is a high speed Quad 2-Input Multiplexer with storage.
It selects 4 bits of data from two sources (ports) under the control of
a common Select input (S). The selected data is transferred to the
4-bit output register synchronous with the High-to-Low transition of
the clock (CP). The 4-bit register is fully edge triggered. The data
inputs (I0 and I1) and Select input (S) must be stable only one setup
time prior to the High-to-Low transition of the clock for predictable
operation.
10
9
S
GND
I0c
SF00859
TYPICAL
SUPPLY CURRENT
(TOTAL)
TYPE
TYPICAL f
MAX
74F298
115MHz
30mA
ORDERING INFORMATION
ORDER CODE
COMMERCIAL RANGE
DESCRIPTION
PKG DWG #
V
CC
= 5V ±10%,
T
amb
= 0°C to +70°C
16-pin plastic DIP
16-pin plastic SO
N74F298N
SOT38-4
N74F298D
SOT109-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
I0a, I0b, I0c, I0d
I1a, I1b, I1c, I1d
S
DESCRIPTION
Data inputs
74F (U.L.) HIGH/LOW
1.0/1.0
LOAD VALUE HIGH/LOW
20µA/0.6mA
Data inputs
1.0/1.0
20µA/0.6mA
Select input
1.0/1.0
20µA/0.6mA
CP
Clock input (active falling edge)
Data outputs
1.0/1.0
20µA/0.6mA
Qa, Qb, Qc, Qd
50/33
1.0mA/20mA
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)
11
10
C1
M2
3
2
4
1
9
5
7
6
3
2
2, 1D
2, 1D
15
14
13
I0a I1a I0b I1b I0c I1c I0d I1d
10
11
S
4
1
CP
9
5
Qa Qb Qc Qd
7
6
12
15 14 13 12
SF00860
V
= Pin 16
CC
GND = Pin 8
SF00861
2
1989 Aug 14
853–0061 97377
Philips Semiconductors
Product specification
Quad 2-input multiplexer with storage
74F298
LOGIC DIAGRAM
I1a
2
I0a
I1b
I0b
4
I1c
I0c
9
I1d
I0d
3
1
5
6
7
10
S
11
CP
R
R
R
R
CP
S
CP
S
CP
S
CP
S
Qa
Qb
Qc
Qd
15
Qa
14
Qb
13
Qc
12
Qd
V
= Pin 16
CC
GND = Pin 8
SF00862
FUNCTION TABLE
INPUTS
OUTPUT
OPERATING MODE
Load source “0”
CP
↓
S
l
I0n
l
I1n
X
X
l
Qn
L
↓
l
h
H
L
↓
h
h
X
X
Load source “1”
↓
h
H
H
h
=
=
High voltage level
High voltage level one setup time prior to the High-to-Low
clock transition
L
l
=
=
Low voltage level
Low voltage level one setup time prior to the High-to-Low
clock transition
X
↓
=
=
Don’t care
High-to-Low clock transition
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
UNIT
V
V
Supply voltage
Input voltage
Input current
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
CC
IN
V
V
I
mA
V
IN
V
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air temperature range
Storage temperature range
–0.5 to V
40
OUT
OUT
CC
I
mA
°C
°C
T
amb
0 to +70
T
stg
–65 to +150
3
1989 Aug 14
Philips Semiconductors
Product specification
Quad 2-input multiplexer with storage
74F298
RECOMMENDED OPERATING CONDITIONS
LIMITS
NOM
5.0
SYMBOL
PARAMETER
UNIT
MIN
4.5
MAX
V
Supply voltage
5.5
V
V
CC
IH
IL
V
V
High-level input voltage
Low-level input voltage
Input clamp current
2.0
0.8
–18
–1
V
I
I
I
mA
mA
mA
°C
IK
High-level output current
Low-level output current
OH
OL
20
T
amb
Operating free-air temperature range
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
2.5
2.7
V
V
V
±10%V
±5%V
CC
V
V
= MIN, V = MAX,
IL
CC
IH
V
High-level output voltage
Low-level output voltage
OH
= MIN, I = –MAX
OH
3.4
0.30
0.30
–0.73
CC
0.50
±10%V
CC
CC
V
V
= MIN, V = MAX,
IL
CC
IH
V
V
OL
= MIN, I =– MAX
OL
0.50
–1.2
100
20
V
±5%V
Input clamp voltage
V
CC
V
CC
V
CC
V
CC
V
CC
= MIN, I = I
IK
V
IK
I
I
I
I
I
Input current at maximum input voltage
High-level input current
= MAX, V = 7.0V
µA
µA
mA
mA
mA
mA
I
I
= MAX, V = 2.7V
IH
IL
I
Low-level input current
= MAX, V = 0.5V
–0.6
–150
40
I
NO TAG
Short-circuit output current
= MAX
–60
OS
I
30
32
CCH
I
Supply current (total)
V
CC
= MAX
CC
I
40
CCL
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
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
V
= +25°C
= +5.0V
T
V
= 0°C to +70°C
= +5.0V ± 10%
amb
CC
amb
CC
TEST
SYMBOL
PARAMETER
UNIT
CONDITION
C = 50pF
L
C = 50pF
L
R = 500Ω
L
R = 500Ω
L
MIN
TYP
MAX
MIN
MAX
Waveform
NO TAG
f
Maximum clock frequency
110
115
105
ns
ns
MAX
t
t
Propagation delay
CP tp Qn
Waveform
NO TAG
4.0
4.5
5.5
6.5
7.5
8.5
4.0
4.5
9.0
9.5
PLH
PHL
4
1989 Aug 14
Philips Semiconductors
Product specification
Quad 2-input multiplexer with storage
74F298
AC SETUP REQUIREMENTS
LIMITS
T
V
= +25°C
= +5.0V
T
V
= 0°C to +70°C
= +5.0V ± 10%
amb
CC
amb
CC
TEST
SYMBOL
PARAMETER
UNIT
CONDITION
C = 50pF
L
C = 50pF
L
R = 500Ω
L
R = 500Ω
L
MIN
TYP
MAX
MIN
MAX
t (H)
t (L)
s
Setup time, High or Low
I0n, I1n to CP
Waveform
NO TAG
2.0
2.0
2.0
2.0
s
ns
ns
ns
ns
ns
t (H)
Hold time, High or Low
I0n, I1n to CP
Waveform
NO TAG
1.0
1.0
1.0
1.0
h
t (L)
h
t (H)
Setup time, High or Low
S to CP
Waveform
NO TAG
6.0
5.0
7.0
6.0
s
t (L)
s
t (H)
Hold time, High or Low
S to CP
Waveform
NO TAG
0
0
0
0
h
t (L)
h
t (H)
CP Pulse width,
High or Low
Waveform
NO TAG
5.0
5.0
5.0
7.0
w
t (L)
w
AC WAVEFORMS
For all waveforms, V = 1.5V.
M
The shaded areas indicate when the input is permitted to change for predictable output performance.
1/f
MAX
Ion, I1n, S
V
V
V
V
M
M
M
M
V
V
M
M
t
CP
t (H)
s
t (H)
h
t (L)
s
t (L)
h
t
(L)
t (H)
W
W
t
PHL
PLH
CP
V
V
M
M
V
V
M
M
Q
n
SF00864
SF00863
Waveform 1. Clock Input to Output, Clock Pulse Width, and
Maximum Clock Frequency
Waveform 2. Data Setup and Hold Times
TEST CIRCUIT AND WAVEFORMS
t
AMP (V)
V
w
CC
90%
90%
NEGATIVE
PULSE
V
V
M
M
10%
10%
V
V
OUT
IN
0V
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
74F
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
3.0V
1.5V
1MHz
500ns
SF00006
5
1989 Aug 14
Philips Semiconductors
Product specification
74F298
Quad 2-input multiplexer with storage
DIP16: plastic dual in-line package; 16 leads (300 mil)
SOT38-4
6
1989 Aug 14
Philips Semiconductors
Product specification
74F298
Quad 2-input multiplexer with storage
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
7
1989 Aug 14
Philips Semiconductors
Product specification
74F298
Quad 2-input multiplexer with storage
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 1998
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code
Date of release: 10-98
9397-750-05116
Document order number:
Philips
Semiconductors
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