Datasheet

4
SN54LS240 , SN54LS241 , SN54LS244 , SN54S240 , SN54S241 , SN54S244
SN74LS240 , SN74LS241 , SN74LS244 , SN74S240 , SN74S241 , SN74S244
SDLS144D –APRIL 1985–REVISED OCTOBER 2016 www.ti.com
Product Folder Links: SN54LS240 SN54LS241 SN54LS244 SN54S240 SN54S241 SN54S244 SN74LS240
SN74LS241 SN74LS244 SN74S240 SN74S241 SN74S244
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(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Voltage values are with respect to network ground terminal.
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
MIN MAX UNIT
Supply voltage, V
CC
(2)
7 V
Input voltage, V
I
SNx4LS24x 7
V
SNx4S24x 5.5
Off-state output voltage 5.5 V
Storage temperature, T
stg
–65 150 °C
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.2 ESD Ratings
VALUE UNIT
ALL PACKAGES
V
(ESD)
Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001
(1)
500 V
N PACKAGE
V
(ESD)
Electrostatic discharge Charged device model (CDM), per JEDEC specification JESD22-C101
(2)
500 V
(1) Voltage values are with respect to network ground terminal.
(2) An SN54S241J operating at free-air temperature above 116°C requires a heat sink that provides a thermal resistance from case to free
air, R
θCA
, of not more that 40°C/W.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
V
CC
Supply voltage
(1)
SN54xS24x 4.5 5 5.5
V
SN74xS24x 4.75 5 5.25
V
IH
High-level input voltage 2 V
V
IL
Low-level input voltage
SN54LS24x 0.7
V
SN54S24x, SN74xS24x 0.8
I
OH
High-level output current
SN54xS24x –12
mA
SN74xS24x –15
I
OL
Low-level output current
SN54LS24x 12
mA
SN54S24x 48
SN74LS24x 24
SN74S24x 64
External resistance between any input and V
CC
or ground (SNx4S24x only) 40 kΩ
T
A
Operating free-air temperature
(2)
SN54xS24x –55 125
°C
SN74xS24x 0 70