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74F242
Quad transceiver, inverting (3-State)
74F243
Quad transceiver (3-State)
Product specification
IC15 Data Handbook
1990 Aug 31
INTEGRATED CIRCUITS
Philips Semiconductors Product specification
74F242/74F243Transceivers
74F242 Quad Transceiver, Inverting (3-State)
74F243 Quad Transceiver (3-State)
2
1990 Aug 30 853–0356 00285
PIN CONFIGURATION
14
13
12
11
10
9
87
6
5
4
3
2
1
GND
VCC
B1
B2
B3
B0
OEB
NC
OEA
NC
A3
A0
A1
A2
SF00765
TYPE TYPICAL
PROPAGATION
DELAY
TYPICAL
SUPPLY CURRENT
(TOTAL)
74F242 4.3ns 31.2mA
74F243 4.0ns 66mA
ORDERING INFORMATION
DESCRIPTION COMMERCIAL RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°CPKG DWG #
14-pin plastic DIP N74F242N, N74F243N SOT27-1
14-pin plastic SO N74F242D, N74F243D SOT108-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS DESCRIPTION 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW
An, Bn Data inputs (74F242) 3.5/1.67 70µA/1.0mA
An, Bn Data inputs (74F243) 3.5/2.67 70µA/1.6mA
OEAOutput enable input (active Low) 1.0/1.67 20µA/1.0mA
OEBOutput enable input 1.0/1.67 20µA/1.0mA
An, Bn Data outputs 750/106.7 15mA/64mA
NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state.
LOGIC SYMBOLS
B0 B1 B2 B3
11 10 98
VCC = Pin 14
GND = Pin 7
1
13
A1 A2
56
SF00767
A3A0
34
OEA
OEB
74F242
B0 B1 B2 B3
11 10 98
VCC = Pin 14
GND = Pin 7
1
13
A1 A2
56
SF00768
A3A0
34
OEA
OEB
74F243
Philips Semiconductors Product specification
74F242/74F243Transceivers
1990 Aug 30 3
LOGIC SYMBOLS (IEEE/IEC)
SF00769
3
4
1EN1
13 EN2
5
6
11
10
9
8
74F242
1
2
SF00771
VCC = Pin 14
GND = Pin 7
74F242
11
OEA
10
A0
9
A1
8
A2
A3
B0
B1
B2
B3
1
3
4
5
6
13
OEB
SF00770
3
4
1EN1
13 EN2
5
6
11
10
9
8
74F243
1
2
11
OEA
10
A0
9
A1
8
A2
A3
B0
B1
B2
B3
1
3
4
5
6
13
OEB
74F243
SF00772
VCC = Pin 14
GND = Pin 7
LOGIC DIAGRAMS
FUNCTION TABLE, 74F242
INPUTS OUTPUTS
OEAOEBAn Bn
L L INPUT B=A
H L Z Z
L H a a
H H A=B INPUT
H = High voltage level
L = Low voltage level
Z = High impedance “off” state
a = This condition is not allowed due to excessive currents
FUNCTION TABLE, 74F243
INPUTS OUTPUTS
OEAOEBAn Bn
L L INPUT B=A
H L Z Z
L H a a
H H A=B INPUT
Philips Semiconductors Product specification
74F242/74F243Transceivers
1990 Aug 30 4
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
VCC Supply voltage –0.5 to +7.0 V
VIN Input voltage –0.5 to +7.0 V
IIN Input current –30 to +5 mA
VOUT Voltage applied to output in High output state –0.5 to VCC V
IOUT Current applied to output in Low output state 128 mA
Tamb Operating free-air temperature range 0 to +70 °C
Tstg Storage temperature –65 to +150 °C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
SYMBOL
PARAMETER
MIN NOM MAX
UNIT
VCC Supply voltage 4.5 5.0 5.5 V
VIH High-level input voltage 2.0 V
VIL Low-level input voltage 0.8 V
IIK Input clamp current –18 mA
IOH High-level output current –15 mA
IOL Low-level output current 64 mA
Tamb Operating free-air temperature range 0 70 °C
Philips Semiconductors Product specification
74F242/74F243Transceivers
1990 Aug 30 5
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONS1
LIMITS
UNIT
SYMBOL
PARAMETER
TEST
CONDITIONS1
MIN TYP2MAX
UNIT
VCC = MIN,
VIL = MAX
IO= 3mA
±10%VCC 2.4
V
V
High level out
p
ut voltage
V
IL =
MAX
,
VIH = MIN
I
OH = –
3mA
±5%VCC 2.7 3.3
V
V
OH
High
-
le
v
el
o
u
tp
u
t
v
oltage
VCC = MIN,
VIL = MAX
I = 15mA
±10%VCC 2.0 3.2
V
V
IL =
MAX
,
VIH = MIN
I
OL = –
15mA
±5%VCC 2.0 3.1
V
V
Low level out
p
ut voltage
VCC = MIN,
VIL = MAX
I =MAX
±10%VCC 0.55
V
V
OL
Lo
w-
le
v
el
o
u
tp
u
t
v
oltage
V
IL =
MAX
,
VIH = MIN
I
OH=
MAX
±5%VCC 0.42 0.55
V
VIK Input clamp voltage VCC = MIN, II = IIK –0.73 –1.2 V
II
Input current at A0–A3, B0–B3 VCC = MAX, VI = 5.5V 1 mA
I
Imaximum input voltage OEA, OEBVCC = MAX, VI = 7.0V 100 µA
IIH High-level input current OEA, OEBVCC = MAX, VI = 2.7V 20 µA
IIL Low-level input current only VCC = MAX, VI = 0.5V –1 mA
IIH+IOZH Off-state output current
High-level voltage applied VCC = MAX, VO = 2.7V 70 µA
I +I
Off-state output current
74F242
V = MAX V =05V
–1.0
mA
I
IL+
I
OZL
-
applied 74F243
V
CC =
MAX
,
V
O =
0
.
5V
–1.6
mA
IOS Short-circuit output current3VCC = MAX –100 –225 mA
ICCH 22 35 mA
74F242 ICCL VCC = MAX 40 55 mA
ICC
pp
ICCZ 32 45 mA
I
CC
u
y
u
ICCH 64 80 mA
74F243 ICCL VCC = MAX 64 90 mA
ICCZ 71 90 mA
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 VCC = 5V, Tamb = 25°C.
3. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold
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, IOS tests should be performed last.
Philips Semiconductors Product specification
74F242/74F243Transceivers
1990 Aug 30 6
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL PARAMETER TEST
CONDITION
VCC = +5V
Tamb = +25°C
CL = 50pF, RL = 500Ω
VCC = +5V ± 10%
Tamb = 0°C to +70°C
CL = 50pF, RL = 500ΩUNIT
MIN TYP MAX MIN MAX
tPLH
tPHL Propagation delay
An, Bn to Bn, An Waveform
NO TAG 2.5
2.0 3.5
3.0 6.0
4.5 2.5
2.0 7.0
4.5 ns
tPZH
tPZL Output Enable time
to High or Low level 74F242 W aveform 3
W aveform 4 3.0
3.5 4.0
6.5 7.0
9.0 3.0
3.5 8.0
10.5 ns
tPHZ
tPLZ Output Disable time
from High or Low level W aveform 3
W aveform 4 3.5
3.5 5.5
6.0 8.5
9.5 3.5
3.5 9.0
11.0 ns
tPLH
tPHL Propagation delay
An, Bn to Bn, An W aveform 2 2.5
2.5 4.0
4.0 5.2
5.2 2.0
2.0 6.2
6.5 ns
tPZH
tPZL Output Enable time
to High or Low level 74F243 W aveform 3
W aveform 4 2.0
2.0 4.5
5.0 5.7
7.5 2.0
2.0 6.7
8.5 ns
tPHZ
tPLZ Output Disable time
from High or Low level W aveform 3
W aveform 4 2.0
2.0 4.0
4.5 6.0
6.0 2.0
2.0 7.0
7.0 ns
AC WAVEFORMS
For all waveforms, VM = 1.5V.
An, Bn
Bn, An
tPHL
VMVM
VM
VM
tPLH
SF00773
W aveform 1. For Inverting Outputs
VM
VM
VM
VM
Bn, An
An, Bn
tPLH tPHL
SF00202
W aveform 2. For Non-Inverting Outputs
VM
VM
VM
tPLZ
tPZH
VOH –0.3V
OEA
OEB
An, Bn
SF00775
0V
W aveform 3. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
VM
VM
VM
tPLZ
tPZL
VOL +0.3V
OEA
OEB
An, Bn
SF00776
W aveform 4. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
Philips Semiconductors Product specification
74F242/74F243Transceivers
1990 Aug 30 7
TEST CIRCUIT AND WAVEFORMS
tw90%
VM
10%
90%
VM10%
90%
VM10%
90%
VM
10%
NEGATIVE
PULSE
POSITIVE
PULSE
tw
AMP (V)
0V
0V
tTHL (tf )
INPUT PULSE REQUIREMENTS
rep. rate twtTLH tTHL
1MHz 500ns 2.5ns 2.5ns
Input Pulse Definition
VCC
family
74F
D.U.T.
PULSE
GENERATOR
RL
CL
RT
VIN VOUT
Test Circuit for 3-State Outputs
DEFINITIONS:
RL= Load resistor;
see AC electrical characteristics for value.
CL= Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
RT= Termination resistance should be equal to ZOUT of
pulse generators.
tTHL (tf )
tTLH (tr )
tTLH (tr )AMP (V)
amplitude
3.0V 1.5V
VM
RL
7.0V
SF00777
TEST SWITCH
tPLZ closed
tPZL closed
All other open
SWITCH POSITION
Philips Semiconductors Product specification
74F242, 74F243Transceivers
1990 Aug 30 8
DIP14: plastic dual in-line package; 14 leads (300 mil) SOT27-1
Philips Semiconductors Product specification
74F242, 74F243Transceivers
1990 Aug 30 9
SO14: plastic small outline package; 14 leads; body width 3.9 mm SOT108-1
Philips Semiconductors Product specification
74F242, 74F243Transceivers
yyyy mmm dd 10
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 af fect 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.
Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, 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 A venue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
print code Date of release: 10-98
Document order number: 9397-750-05102
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Data sheet
status
Objective
specification
Preliminary
specification
Product
specification
Product
status
Development
Qualification
Production
Definition [1]
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
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.
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.
Data sheet status
[1] Please consult the most recently issued datasheet before initiating or completing a design.