PHILIPS N74F545N Octal bidirectional transceiver with 3-state inputs/output Datasheet

INTEGRATED CIRCUITS
74F545
Octal bidirectional transceiver (with
3-State inputs/outputs)
Product specification
IC15 Data Handbook
1990 Mar 01
Philips Semiconductors
Product specification
Octal bidirectional transceiver (with 3-State inputs/outputs)
FEATURES
74F545
PIN CONFIGURATION
• High impedance NPN base inputs for reduced loading
(70µA in High and Low states) output
• 8-bit bidirectional data flow reduces system package count
• 3-State inputs/outputs for interfacing with bus oriented systems
• 24mA and 64mA bus drive capability on A and B ports,
respectively
• Transmit/Receive and Output Enable simplify control logic
DESCRIPTION
The 74F545 is an 8-bit, 3-State, high speed transceiver. It provides
bidirectional drive for the bus-oriented microprocessor and digital
communications systems. Straight through bidirectional transceivers
are featured, with 24mA bus drive capability on the A ports and
64mA bus drive capability on the B ports. One input,
Transmit/Receive (T/R) determines the direction of logic signals
through the bidirectional transceiver. Transmit enables data from A
ports to B ports; Receive enables data from B ports to A ports. The
Output Enable input disables both A and B ports by placing them in
a 3-State condition. The 74F545 performs the same function as the
74F245, the only difference being package pin assignment.
A0
1
20 VCC
A1
2
19 B0
A2
3
18 B1
A3
4
17 B2
A4
5
16 B3
A5
6
15 B4
A6
7
14 B5
A7
8
13 B6
OE
9
12 B7
GND 10
11 T/R
SF01032
TYPE
TYPICAL
PROPAGATION DELAY
TYPICAL SUPPLY
CURRENT
(TOTAL)
74F545
4.0ns
87mA
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL
RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°C
PKG DWG #
20-Pin Plastic DIP
N74F545N
SOT146-1
20-Pin Plastic SOL
N74F545D
SOT163-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
A0–A7, B0–B7
Data inputs
3.5/0.117
70µA/70µA
OE
Output Enable input (active Low)
2.0/0.067
40µA/40µA
T/R
Transmit/Receive input
2.0/0.067
40µA/40µA
A0 - A7
Port A 3-State outputs
150/40
3.0mA/24mA
B0 - B7
Port B 3-State outputs
750/107
15mA/64mA
NOTE: One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state.
1990 Mar 01
2
853–0375 98992
Philips Semiconductors
Product specification
Octal bidirectional transceiver (with 3-State inputs/outputs)
LOGIC SYMBOL
74F545
LOGIC SYMBOL (IEEE/IEC)
1
2
3
4
5
6
7
8
9
G3
3EN1
A0
9
OE
11
T/R
A1
A2
A3
A4
A5
A6
A7
11
3EN2
1
1
B0
VCC = Pin 20
GND = Pin 10
B1
18
19
B2
17
B3
16
B4
B5
15
14
B6
13
B7
19
2
2
18
3
17
4
16
5
15
6
14
7
13
8
12
12
SF01033
SF01034
LOGIC DIAGRAM
A0
A1
1
2
A2
A3
3
4
A4
5
A5
6
A6
7
A7
8
OE 9
11
T/R
19
VCC =
GND =
B0
Pin 20
Pin 10
18
B1
17
16
B2
B3
INPUTS
H
L
X
Z
=
=
=
=
OUTPUTS
T/R
L
L
Bus B data to Bus A
L
H
Bus A data to Bus B
H
X
High voltage level
Low voltage level
Don’t care
High impedance “off” state
1990 Mar 01
14
B5
13
B6
12
B7
SF01035
FUNCTION TABLE
OE
15
B4
Z
3
Philips Semiconductors
Product specification
Octal bidirectional transceiver (with 3-State inputs/outputs)
74F545
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
VCC
Supply voltage
–0.5 to +7.0
VIN
Input voltage
–0.5 to +7.0
V
IIN
Input current
–30 to +5.0
mA
VOUT
Voltage applied to output in High output state
IOUT
O
Current applied to output in Low output state
Tamb
Operating free-air temperature range
Tstg
Storage temperature
–0.5 to +5.5
V
A0–A7
48
mA
B0–B7
128
mA
0 to +70
°C
–65 to +150
°C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
LIMITS
PARAMETER
MIN
NOM
MAX
5.0
5.5
UNIT
VCC
Supply voltage
4.5
VIH
High-level input voltage
2.0
VIL
Low-level input voltage
0.8
V
IIK
Input clamp current
–18
mA
IOH
O
High level output current
High-level
A0–A7
–3
mA
B0–B7
–15
mA
IOL
O
Low level output current
Low-level
A0–A7
24
mA
64
mA
Tamb
Operating free-air temperature range
70
°C
1990 Mar 01
B0–B7
0
4
V
V
Philips Semiconductors
Product specification
Octal bidirectional transceiver (with 3-State inputs/outputs)
74F545
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
A0–A7
B0–B7
VOH
High-level out
output
ut voltage
B0–B7
A0–A7
VOL
Low-level out
output
ut voltage
B0–B7
VIK
LIMITS
TEST CONDITIONS1
PARAMETER
Input clamp voltage
VCC = MIN,
MIN
VIL = MAX
MAX,
VIH = MIN
VCC = MIN,
MIN
VIL = MAX,
MAX
VIH = MIN
IOH = –3mA
IOH = –15mA
IOL = 24mA
IOL = MAX
MIN
±10%VCC
2.4
±5%VCC
2.7
±10%VCC
2.0
±5%VCC
2.0
TYP2
MAX
UNIT
V
3.3
V
V
V
±10%VCC
0.35
0.50
V
±5%VCC
0.35
0.50
V
0.55
V
0.42
0.55
V
–0.73
±10%VCC
±5%VCC
–1.2
V
OE, T/R
VCC = 0.0V, VI = 7.0V
VCC = MIN, II = IIK
100
µA
A0–A7,
B0–B7
VCC = 5.5V, VI = 5.5V
1.0
mA
VCC = MAX, VI = 2.7V
40
µA
VCC = MAX, VI = 0.5V
–40
µA
II
Input
In
ut current at
maximum input voltage
IIH
High-level input current
IIL
Low-level input current
IOZH+IIH
Off-state output current
High-level voltage applied
VCC = MAX, VI = 2.7V
70
µA
IOZL+IIL
Off-state output current
Low-level voltage applied
VCC = MAX, VI = 0.5V
–70
µA
IOS
Short-circuit output
current3
–60
–150
mA
–100
–225
µA
OE, T/R
only
A0–A7
VCC = MAX
B0–B7
ICCH
ICC
Supply current (total)4
ICCL
VCC = MAX
ICCZ
T/R=An=4.5V, OE=GND
84
100
mA
OE=T/R =Bn=GND
96
120
mA
T/R=Bn=GND, OE=4.5V
96
120
mA
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value under the 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 should be performed last.
4. Measure ICC with outputs open.
AC ELECTRICAL CHARACTERISTICS
SYMBOL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
1990 Mar 01
PARAMETER
Propagation delay
An to Bn, Bn to An
Output Enable time
to High or Low level
Output Disable time
from High or Low level
LIMITS
Tamb = +25°C
Tamb = 0°C to +70°C
VCC = +5.0V
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
CL = 50pF, RL = 500Ω
MIN
TYP
MAX
MIN
MAX
1.5
3.5
5.5
1.5
6.5
2.5
4.5
6.5
2.5
7.0
6.0
8.5
10.5
6.0
11.0
5.5
8.0
9.5
5.5
10.0
2.5
5.0
7.0
2.5
8.0
2.0
4.5
6.5
2.0
7.5
TEST
CONDITIONS
Waveform 1
Waveform 2
Waveform 3
Waveform 2
Waveform 3
5
UNIT
ns
ns
ns
ns
ns
ns
Philips Semiconductors
Product specification
Octal bidirectional transceiver (with 3-State inputs/outputs)
74F545
AC WAVEFORMS
For all waveforms, VM = 1.5V.
OE
An, Bn
VM
VM
VM
tPLH
VM
tPZL
tPHL
tPLZ
An, Bn
VM
Bn, An
VM
VM
VOL+0.3V
SF00204
SF00202
Waveform 1. Propagation Delay Data for Non-Inverting Output
Waveform 3. 3-State Output Enable Time to Low Level
and Output Disable Time from Low Level
OE
VM
VM
tPZH
tPHZ
VOH–0.3V
VM
An, Bn
0V
SF00203
Waveform 2. 3-State Output Enable Time to High Level
and Output Disable Time from High Level
TEST CIRCUIT AND WAVEFORM
VCC
7.0V
VIN
RL
VOUT
PULSE
GENERATOR
tw
90%
NEGATIVE
PULSE
VM
CL
AMP (V)
VM
10%
D.U.T.
RT
90%
10%
tTHL (tf )
tTLH (tr )
tTLH (tr )
tTHL (tf )
0V
RL
AMP (V)
90%
90%
Test Circuit for 3-State Outputs
POSITIVE
PULSE
VM
VM
10%
TEST
tPLZ
tPZL
All other
SWITCH
closed
closed
open
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.
10%
tw
SWITCH POSITION
0V
Input Pulse Definition
INPUT PULSE REQUIREMENTS
family
amplitude VM
74F
3.0V
1.5V
rep. rate
tw
tTLH
tTHL
1MHz
500ns
2.5ns
2.5ns
SF00777
1990 Mar 01
6
Philips Semiconductors
Product specification
Octal bidirectional transceiver (with 3-State inputs/outputs)
DIP20: plastic dual in-line package; 20 leads (300 mil)
1990 Mar 01
7
74F545
SOT146-1
Philips Semiconductors
Product specification
Octal bidirectional transceiver (with 3-State inputs/outputs)
SO20: plastic small outline package; 20 leads; body width 7.5 mm
1990 Mar 01
8
74F545
SOT163-1
Philips Semiconductors
Product specification
Octal bidirectional transceiver (with 3-State inputs/outputs)
NOTES
1990 Mar 01
9
74F545
Philips Semiconductors
Product specification
Octal bidirectional transceiver (with 3-State inputs/outputs)
74F545
Data sheet status
Data sheet
status
Product
status
Definition [1]
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.
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.
 Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code
Document order number:
yyyy mmm dd
10
Date of release: 10-98
9397-750-05136
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