SN54ALS38B, SN74ALS38B
QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS
WITH OPEN-COLLECTOR OUTPUTS
SDAS196B – APRIL 1982 – REVISED DECEMBER 1994
•
SN54ALS38B . . . J PACKAGE
SN74ALS38B . . . D OR N PACKAGE
(TOP VIEW)
Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
1A
1B
1Y
2A
2B
2Y
GND
description
These devices contain four independent 2-input
positive-NAND buffers with open-collector
outputs. They perform the Boolean functions
Y = A • B or Y = A + B in positive logic. The
open-collector outputs require pullup resistors to
perform correctly. These outputs may be
connected to other open-collector outputs to
implement active-low wired-OR or active-high
wired-AND functions. Open-collector devices
often are used to generate higher VOH levels.
OUTPUT
Y
H
H
L
L
X
H
X
L
H
1B
2A
2B
3A
3B
4A
4B
1
12
4
11
5
10
6
9
7
8
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
4A
NC
4Y
NC
3B
NC – No internal connection
logic symbol†
1A
3
VCC
4B
4A
4Y
3B
3A
3Y
2Y
GND
NC
3Y
3A
B
13
1B
1A
NC
VCC
4B
1Y
NC
2A
NC
2B
FUNCTION TABLE
(each gate)
A
14
2
SN54ALS38B . . . FK PACKAGE
(TOP VIEW)
The SN54ALS38B is characterized for operation
over the full military temperature range of – 55°C
to 125°C. The SN74ALS38B is characterized for
operation from 0°C to 70°C.
INPUTS
1
logic diagram (positive logic)
&
3
2
4
1Y
1B
6
5
2Y
8
3Y
3A
3B
12
13
2A
2B
9
10
1A
11
4Y
4A
4B
1
3
2
4
6
5
1Y
2Y
9
10
8
3Y
12
13
11
4Y
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
Copyright 1994, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SN54ALS38B, SN74ALS38B
QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS
WITH OPEN-COLLECTOR OUTPUTS
SDAS196B – APRIL 1982 – REVISED DECEMBER 1994
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Operating free-air temperature range, TA: SN54ALS38B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
SN74ALS38B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN54ALS38B
SN74ALS38B
MIN
NOM
MAX
MIN
NOM
MAX
4.5
5
5.5
4.5
5
5.5
UNIT
VCC
VIH
Supply voltage
VIL
VOH
Low-level input voltage
0.7
0.8
High-level output voltage
5.5
5.5
V
IOL
TA
Low-level output current
12
24
mA
70
°C
High-level input voltage
2
Operating free-air temperature
2
– 55
125
V
V
0
V
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
SN54ALS38B
TYP‡
MAX
TEST CONDITIONS
VIK
VCC = 4.5 V,
VOL
5V
VCC = 4
4.5
II
IIH
VCC = 5.5 V,
VCC = 5.5 V,
IIL
IOH
VCC = 5.5 V,
VCC = 4.5 V,
ICCH
ICCL
VCC = 5.5 V,
VCC = 5.5 V,
MIN
II = –18 mA
IOL = 12 mA
SN74ALS38B
TYP‡
MAX
MIN
–1.5
0.25
IOL = 24 mA
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VOH = 5.5 V
VI = 0
–1.5
0.4
0.25
0.4
0.35
0.5
V
V
0.1
0.1
20
20
µA
– 0.1
– 0.1
mA
0.1
VI = 4.5 V
UNIT
mA
0.1
mA
0.86
1.6
0.86
1.6
mA
4.8
7.8
4.8
7.8
mA
‡ All typical values are at VCC = 5 V, TA = 25°C.
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 Ω,
TA = MIN to MAX§
SN54ALS38B
tPLH
tPHL
A or B
Y
SN74ALS38B
MIN
MAX
MIN
MAX
7
59
10
33
2
20
1
12
§ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
UNIT
ns
SN54ALS38B, SN74ALS38B
QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS
WITH OPEN-COLLECTOR OUTPUTS
SDAS196B – APRIL 1982 – REVISED DECEMBER 1994
PARAMETER MEASUREMENT INFORMATION
SERIES 54ALS/74ALS AND 54AS/74AS DEVICES
7V
RL = R1 = R2
VCC
S1
RL
R1
Test
Point
From Output
Under Test
CL
(see Note A)
From Output
Under Test
RL
Test
Point
From Output
Under Test
CL
(see Note A)
CL
(see Note A)
LOAD CIRCUIT FOR
BI-STATE
TOTEM-POLE OUTPUTS
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
3.5 V
Timing
Input
Test
Point
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
3.5 V
High-Level
Pulse
1.3 V
R2
1.3 V
1.3 V
0.3 V
0.3 V
tsu
Data
Input
tw
th
3.5 V
1.3 V
3.5 V
Low-Level
Pulse
1.3 V
0.3 V
1.3 V
0.3 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATIONS
3.5 V
Output
Control
(low-level
enabling)
1.3 V
1.3 V
0.3 V
tPZL
Waveform 1
S1 Closed
(see Note B)
tPLZ
[3.5 V
1.3 V
tPHZ
tPZH
Waveform 2
S1 Open
(see Note B)
1.3 V
VOL
0.3 V
VOH
1.3 V
0.3 V
[0 V
3.5 V
1.3 V
Input
1.3 V
0.3 V
tPHL
tPLH
VOH
In-Phase
Output
1.3 V
1.3 V
VOL
tPLH
tPHL
VOH
Out-of-Phase
Output
(see Note C)
1.3 V
1.3 V
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. When measuring propagation delay items of 3-state outputs, switch S1 is open.
D. All input pulses have the following characteristics: PRR ≤ 1 MHz, tr = tf = 2 ns, duty cycle = 50%.
E. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuits and Voltage Waveforms
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
5962-86871012A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
596286871012A
SNJ54
ALS38BFK
5962-8687101CA
ACTIVE
CDIP
J
14
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8687101CA
SNJ54ALS38BJ
Samples
5962-8687101DA
ACTIVE
CFP
W
14
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8687101DA
SNJ54ALS38BW
Samples
SN74ALS38BD
ACTIVE
SOIC
D
14
50
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
ALS38B
Samples
SN74ALS38BDR
ACTIVE
SOIC
D
14
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
ALS38B
Samples
SN74ALS38BN
ACTIVE
PDIP
N
14
25
RoHS & Green
NIPDAU
N / A for Pkg Type
0 to 70
SN74ALS38BN
Samples
SN74ALS38BNSR
ACTIVE
SO
NS
14
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
ALS38B
Samples
SNJ54ALS38BFK
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
596286871012A
SNJ54
ALS38BFK
SNJ54ALS38BJ
ACTIVE
CDIP
J
14
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8687101CA
SNJ54ALS38BJ
Samples
SNJ54ALS38BW
ACTIVE
CFP
W
14
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8687101DA
SNJ54ALS38BW
Samples
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Addendum-Page 1
Samples
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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