INTEGRATED CIRCUITS
74F38
Quad 2-input NAND buffer (open
collector)
Product specification
IC15 Data Handbook
1990 Oct 04
Philips
Semiconductors
Philips Semiconductors
Product specification
Quad 2-input NAND buffer (open collector)
74F38
FEATURE
•
Industrial temperature range available (–40°C to +85°C)
TYPE
74F38
TYPICAL
PROPAGATION
DELAY
7.0ns
TYPICAL
SUPPLY CURRENT
(TOTAL)
13mA
PIN CONFIGURATION
D0a
D0b
Q0
D1a
D1b
Q1
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC
D3b
D3a
Q3
D2b
D2a
Q2
SF00001
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
14-pin plastic DIP
14-pin plastic SO
COMMERCIAL RANGE
V
CC
= 5V
±10%,
T
amb
= 0°C to +70°C
N74F38N
N74F38D
INDUSTRIAL RANGE
V
CC
= 5V
±10%,
T
amb
= –40°C to +85°C
I74F38N
I74F38D
PKG DWG #
SOT27-1
SOT108-1
INPUT AND OUTPUT LOADING AND FAN OUT TABLE
PINS
Dna, Dnb
Qn
Data inputs
Data output
DESCRIPTION
74F (U.L.) HIGH/LOW
1.0/2.0
OC/106.7
LOAD VALUE HIGH/LOW
20µA/1.2mA
OC/64mA
NOTES:
1 One (1.0) FAST unit load is defined as: 20µA in the high state and 0.6mA in the low state.
2 OC = open collector
LOGIC DIAGRAM
D0a
D0b
D1a
D1b
D2a
D2b
V
CC
= Pin 14
GND = Pin 7
D3a
D3b
1
2
4
5
9
10
12
13
11
3
Q0
FUNCTION TABLE
INPUTS
Dna
L
L
8
Q2
OUTPUT
Dnb
L
H
L
Qn
H
H
H
L
6
Q1
H
Q3
SF00002
H
H
NOTES:
H = High voltage level
L = Low voltage level
LOGIC SYMBOL
IEC/IEEE SYMBOL
1
1
2
4
5
9
10 12 13
2
&
3
4
6
D0a D0bD1a D1b D2a D2b D3a D3b
5
9
Q0 Q1 Q2 Q3
8
10
12
3
V
CC
= Pin 14
GND = Pin 7
6
8
11
11
13
SF00003
SF00043
October 4, 1990
2
853–0052 00620
Philips Semiconductors
Product specification
Quad 2-input NAND buffer (open collector)
74F38
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit 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
Input voltage
Input current
Voltage applied to output in high output state
Current applied to output in low output state
Operating free air temperature range
Commercial range
Industrial range
Storage temperature range
PARAMETER
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
–0.5 to V
CC
128
0 to +70
–40 to +85
–65 to +150
UNIT
V
V
mA
V
mA
°C
°C
°C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
MIN
V
CC
V
IH
V
IL
I
Ik
V
OH
I
OL
T
amb
Supply voltage
High-level input voltage
Low-level input voltage
Input clamp current
High-level output voltage
Low-level output current
Operating free air temperature range
Commercial range
Industrial range
0
–40
4.5
2.0
0.8
–18
4.5
64
+70
+85
LIMITS
NOM
5.0
MAX
5.5
V
V
V
mA
V
mA
°C
°C
UNIT
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONS
1
MIN
I
OH
V
OL
V
IK
I
I
I
IH
I
IL
I
CC
High-level output current
Low-level output voltage
V
CC
= MIN, V
IL
= MAX, V
IH
= MIN,
V
OH
= MAX
V
CC
= MIN, V
IL
= MAX
V
IH
= MIN, I
OL
= MAX
Input clamp voltage
Input current at maximum input
voltage
High-level input current
Low-level input current
Supply current (total)
I
CCH
I
CCL
V
CC
= MIN, I
I
= I
IK
V
CC
= MAX, V
I
= 7.0V
V
CC
= MAX, V
I
= 2.7V
V
CC
= MAX, V
I
= 0.5V
V
CC
= MAX
V
CC
= MAX
V
IN
= GND
V
IN
= 4.5V
4.0
22
±10%V
CC
±5%V
CC
0.42
-0.73
LIMITS
TYP
2
MAX
250
0.55
0.55
-1.2
100
20
-1.2
7.0
30
µA
V
V
V
µA
µA
mA
mA
mA
UNIT
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
CC
= 5V, T
amb
= 25°C.
October 4, 1990
3
Philips Semiconductors
Product specification
Quad 2-input NAND buffer (open collector)
74F38
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
V
CC
= +5.0V
T
amb
= +25°C
C
L
= 50pF, R
L
= 500Ω
MIN
t
PLH
t
PHL
Propagation delay
Dna, Dnb to Qn
Waveform 1
7.5
1.5
TYP
10.0
3.0
MAX
12.5
5.0
V
CC
= +5.0V
±
10%
T
amb
= 0°C to +70°C
C
L
= 50pF, R
L
= 500Ω
MIN
7.5
1.5
MAX
13.0
5.5
V
CC
= +5.0V
±
10%
T
amb
= –40°C to +85°C
C
L
= 50pF, R
L
= 500Ω
MIN
7.5
1.5
MAX
14.5
6.0
ns
UNIT
AC WAVEFORMS
Dna, Dnb
V
M
t
PHL
V
M
t
PLH
Qn
V
M
V
M
SF00005
Waveform 1. Propagation delay for inverting outputs
NOTE:
For all waveforms, V
M
= 1.5V.
TYPICAL PROPAGATION DELAYS VERSUS LOAD FOR OPEN COLLECTOR OUTPUTS
18
16
14
12
Propagation delay (ns)
10
t
PLH
8
6
4
t
PHL
2
0
0
100
200
300
Load resistor
(Ω)
400
500
600
SF00044
NOTE:
1 When using open collector parts, the value of the pull-up resistor greatly affects the value of the t
PLH
. For example, changing the specified
pull-up resistor value from 500Ω to 100Ω will improve the t
PLH
up to 50% with only a slight increase in the t
PHL
. However, if the value of the
pull-up resistor is changed, the user must make certain that the total I
OL
current through the resistor and the total I
IL
’s of the receivers does
not exceed the I
OL
minimum specification.
October 4, 1990
4
Philips Semiconductors
Product specification
Quad 2-input NAND buffer (open collector)
74F38
TEST CIRCUIT AND WAVEFORM
V
CC
7.0V
90%
V
IN
PULSE
GENERATOR
R
T
D.U.T.
V
OUT
R
L
NEGATIVE
PULSE
V
M
10%
t
THL (
t
f
)
C
L
R
L
t
TLH (
t
r
)
90%
POSITIVE
PULSE
10%
t
THL (
t
f
)
AMP (V)
90%
V
M
t
w
10%
0V
t
w
V
M
10%
t
TLH (
t
r
)
0V
90%
AMP (V)
Test Circuit for Open Collector Outputs
V
M
DEFINITIONS:
R
L
= Load resistor;
see AC electrical characteristics for value.
C
L
= Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
R
T
= Termination resistance should be equal to Z
OUT
of
pulse generators.
Input Pulse Definition
INPUT PULSE REQUIREMENTS
family
amplitude V
M
74F
3.0V
1.5V
rep. rate
1MHz
t
w
500ns
t
TLH
2.5ns
t
THL
2.5ns
SF00027
October 4, 1990
5
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