Page 1
INTEGRATED CIRCUITS
74F30244
Octal 30Ω line driver with enable,
non-inverting (open collector)
Product specification
Supersedes data of 1999 Jan 08
IC15 Data Handbook
2000 Jun 30
Page 2
Philips Semiconductors Product specification
Octal 30Ω line driver with enable, non-inverting
(open collector)
FEA TURES
•Ideal for driving transmission lines or backplanes. 160mA I
for applications with impedance as low as 30Ω
OL
ideal
•Guaranteed threshold voltages on the incident wave while driving
line as low as 30Ω
•High impedance NPN base inputs for reduced loading (20µA in
High and Low states)
•Ideal for applications which require high output drive and minimal
bus loading
•Octal interface
•Non-inverting
•Open-Collector outputs sink 160mA
•Multiple side pins are used for V
inductance (improves speed and noise immunity)
and GND to reduce lead
CC
•Available in 24-pin standard slim DIP (300mil) plastic or SOL
DESCRIPTION
The 74F30244 is a high current open collector octal buffer
composed of eight inverters. The 74F30244 has non-inverting paths.
The device has eight inverters with two Output Enables (OE
each controlling four outputs. The driver is designed to deal with the
low-impedance transmission line effects found on printed circuit
boards when fast edge rates are used. The 160mA I
ample power to achieve TTL switching voltages on the incident
wave.
TYPE
74F30244 10.5ns 69mA
TYPICAL
PROPAGATION
DELA Y
74F30244
0, OE1),
provides
OL
TYPICAL
SUPPLY CURRENT
(TOTAL)
ORDERING INFORMATION
COMMERCIAL RANGE
DESCRIPTION
24-pin Plastic Slim DIP (300mil) N74F30244N SOT222-1
24–pin Plastic SOL
NOTE:
1. Because of the high current sinking capability of these parts, the SOL package should only be used under the following conditions:
a. 50% duty cycle,
AND
b. 3/5 of remaining 50% driving ≤ 100mA (leaving the remaining 2/5 of the drive ≤ 160mA)
OR
c. use ≤ 450 linear feet per minute forced air or other thermal mounting techniques.
1
VCC = 5V ±10%,
T
= 0°C to +70°C
amb
N74F30244D SOT137-1
PACKAGE
DRAWING NUMBER
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS DESCRIPTION
D0–D7 Data inputs 1.0/0.033 20µA/20µA
OE0–OE1 Output Enable inputs (Active Low) 1.0/0.033 20µA/20µA
Q0–Q7 Data outputs (OC) OC/266.7 OC/160mA
NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state. OC = Open Collector.
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
2000 Jun 30 853–1 157 24025
2
Page 3
Philips Semiconductors Product specification
Octal 30Ω line driver with enable, non-inverting
(open collector)
PIN CONFIGURATION
1
2
Q1
3
Q2
4
Q3
5
GND
6
GND
7
GND
8
GND
9
Q4
10
Q5
11
Q6
12 13
LOGIC SYMBOL
24 23 22 21 16 15 14 13
D0 D1 D2 D3 D4 D5 D6 D7
D0
24Q0
D1
23
D2
22
D3
21
OE
20
19
V
18
V
17
OE
16
D4
15
D5
14
D6
D7Q7
SF01388
0
CC
CC
1
LOGIC DIAGRAM
VCC = PIN 18, 19
GND = PIN 5, 6, 7, 8
OE
OE
74F30244
24
D0
23
D1
22
D2
21
D3
20
0
16
D4
15
D5
14
D6
13
D7
17
1
1
2
3
4
9
10
11
12
SF01394
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
20 OE0
17 OE1
VCC = PIN 18, 19
GND = PIN 5, 6, 7, 8
IEC/IEEE SYMBOL
20
17
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
12349101112
SF01390
EN1
EN2
1
124
223
322
421
916
1015
1114
1213
2000 Jun 30
SF01392
3
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Philips Semiconductors Product specification
SYMBOL
PARAMETER
UNIT
Octal 30Ω line driver with enable, non-inverting
(open collector)
FUNCTION TABLE
INPUTS OUTPUTS
OEn Dn Qn
L L L
L H H
H X OFF
H = High voltage level
L = Low voltage level
X = Don’t care
OFF = Pulled up through resistor (Open Collector)
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
V
CC
V
IN
I
IN
V
OUT
I
OUT
T
amb
T
stg
Supply voltage –0.5 to +7.0 V
Input voltage –0.5 to +7.0 V
Input current –30 to +5 mA
Voltage applied to output in High output state –0.5 to V
Current applied to output in Low output state 320 mA
Operating free-air temperature range 0 to +70 °C
Storage temperature range –65 to +150 °C
PARAMETER RATING UNIT
74F30244
CC
V
RECOMMENDED OPERATING CONDITIONS
V
V
V
I
V
I
T
CC
IH
IL
IK
OH
OL
amb
Supply voltage 4.5 5.0 5.5 V
High-level input voltage 2.0 V
Low-level input voltage 0.8 V
Input clamp current –18 mA
High-level output voltage 4.5 V
Low-level output current 160 mA
Operating free-air temperature range 0 +70 °C
LIMITS
MIN NOM MAX
2000 Jun 30
4
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Philips Semiconductors Product specification
SYMBOL
PARAMETER
TEST CONDITIONS
1
UNIT
VOLLow-level output current
V
MAX
I
y
74F30244
V
MAX
Octal 30Ω line driver with enable, non-inverting
(open collector)
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
MIN TYP
I
OH
High-level output current
VCC = MIN,
p
V
IK
I
I
I
IH
I
IL
CC
Input clamp voltage VCC = MIN, II = I
Input current at maximum
input voltage
High-level input current VCC = MAX, VI = 2.7V 20 µA
Low-level input current VCC = MAX, VI = 0.5V –20 µA
I
Supply current
(total)
CCH
I
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
3. I
is the current necessary to guarantee the High-to-Low transition in a 30Ω transmission line on the incident wave.
OL1
= 5V, T
CC
amb
= 25°C.
VCC = MIN, VIL = MAX,
VIH = MIN, VOH = MAX
=
= MIN
IH
,
IL
V
VCC = 0.0V, VI = 7.0V 100 µA
IOL = 100mA ±10% V
IOL = 160mA3±5% V
IK
=
CC
CC
CC
0.42 0.55 V
–0.73 –1.2 V
19 27 mA
70 100 mA
74F30244
2
MAX
250 µA
0.80 V
AC ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
t
PLH
t
PHL
t
PLH
t
PHL
Propagation delay
Dn to Qn
Propagation delay
OE
n to Qn
AC WAVEFORMS
For all waveforms, VM = 1.5V.
Dn, OEn
Qn
Waveform 1. Propagation Delay for Data to Output
V
M
t
PLH
V
V
M
t
PHL
M
TEST
CONDITION
Waveform 1
Waveform 1, 2
V
M
SF01384
LIMITS
T
= +25°C
amb
VCC = +5.0V
C
= 50pF, RL = 500Ω
L
T
= 0°C to +70°C
amb
VCC = +5.0V ± 10%
C
= 50pF, RL = 500Ω
L
MIN TYP MAX MIN MAX
4.0
3.0
4.0
3.5
Dn, OEn
Q
10.5
5.5
9.5
6.0
n
14.5
9.0
14.0
9.0
4.0
3.0
4.0
3.5
V
M
t
PHL
V
M
15.0
9.5
14.5
10.5
V
M
t
PLH
Waveform 2. Propagation Delay for Data to Output
V
M
SF01385
UNIT
ns
ns
2000 Jun 30
5
Page 6
Philips Semiconductors Product specification
Octal 30Ω line driver with enable, non-inverting
(open collector)
TYPICAL PROPAGATION DELAYS VERSUS LOAD FOR OPEN COLLECTOR OUTPUTS
9
t
PLH
t
PHL
PROPAGATION DELAY (ns)
8
7
6
5
4
3
2
1
74F30244
0
LOAD RESISTOR (Ω)
NOTE:
When using Open-Collector parts, the value of the pull-up resistor greatly affects the value of the t
specified pull-up resistor value from 500Ω to 100Ω will improve the t
if the value of the pull-up resistor is changed, the user must make certain that the total I
I
s of the receivers does not exceed the IOL maximum specification.
IL
up to 50% with only a slight increase in the t
PLH
TEST CIRCUIT AND WAVEFORMS
V
CC
PULSE
GENERATOR
V
IN
R
T
D.U.T.
V
OUT
Test Circuit for Open Collector Outputs
DEFINITIONS:
= Load resistor;
R
L
see AC electrical characteristics for value.
C
= Load capacitance includes jig and probe capacitance;
L
see AC electrical characteristics for value.
R
= Termination resistance should be equal to Z
T
pulse generators.
7.0V
of
NEGATIVE
PULSE
POSITIVE
PULSE
R
L
C
R
L
L
OUT
family
90%
10%
V
M
10%
90%
V
M
INPUT PULSE REQUIREMENTS
amplitude
74F
3.0V 1.5V
6005004003002001000
. For example, changing the
PLH
current through the resistor and the total
OL
t
w
10%
)
t
THL (tf
t
TLH (tr
)
t
w
t
TLH (tr
t
THL (tf
)
)
90%
PHL
90%
V
M
V
M
10%
Input Pulse Definition
V
M
rep. rate
1MHz 500ns
t
w
t
TLH
2.5ns 2.5ns
. However,
SF01386
AMP (V)
0V
AMP (V)
0V
t
THL
2000 Jun 30
SF00027
6
Page 7
Philips Semiconductors Product specification
Octal 30Ω line driver with enable, non-inverting
74F30244
(open collector)
DIP24: plastic dual in-line package; 24 leads (300 mil) SOT222-1
2000 Jun 30
7
Page 8
Philips Semiconductors Product specification
Octal 30Ω line driver with enable, non-inverting
74F30244
(open collector)
SO24: plastic small outline package; 24 leads; body width 7.5 mm SOT137-1
2000 Jun 30
8
Page 9
Philips Semiconductors Product specification
Octal 30Ω line driver with enable, non-inverting
(open collector)
NOTES
74F30244
2000 Jun 30
9
Page 10
Philips Semiconductors Product specification
Octal 30Ω line driver with enable, non-inverting
(open collector)
Data sheet status
Data sheet
status
Objective
specification
Preliminary
specification
Product
specification
Product
status
Development
Qualification
Production
Definition
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 changes 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.
[1]
74F30244
[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.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Copyright Philips Electronics North America Corporation 2000
All rights reserved. Printed in U.S.A.
Date of release: 06-00
Document order number: 9397-750 07281
2000 Jun 30
10
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