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DM74LS244WMX

Description
Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, PDSO20, 0.300 INCH, MS-013, SOIC-20
Categorylogic    logic   
File Size65KB,6 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
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DM74LS244WMX Overview

Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, PDSO20, 0.300 INCH, MS-013, SOIC-20

DM74LS244WMX Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerFairchild
Parts packaging codeSOIC
package instruction0.300 INCH, MS-013, SOIC-20
Contacts20
Reach Compliance Codeunknown
Control typeENABLE LOW
seriesLS
JESD-30 codeR-PDSO-G20
JESD-609 codee0
length12.8 mm
Load capacitance (CL)45 pF
Logic integrated circuit typeBUS DRIVER
MaximumI(ol)0.024 A
Number of digits4
Number of functions2
Number of ports2
Number of terminals20
Maximum operating temperature70 °C
Minimum operating temperature
Output characteristics3-STATE
Output polarityTRUE
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP20,.4
Package shapeRECTANGULAR
Package formSMALL OUTLINE
method of packingTAPE AND REEL
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
Maximum supply current (ICC)54 mA
Prop。Delay @ Nom-Sup18 ns
propagation delay (tpd)18 ns
Certification statusNot Qualified
Maximum seat height2.65 mm
Maximum supply voltage (Vsup)5.25 V
Minimum supply voltage (Vsup)4.75 V
Nominal supply voltage (Vsup)5 V
surface mountYES
technologyTTL
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.5 mm
Base Number Matches1
DM74LS244 Octal 3-STATE Buffer/Line Driver/Line Receiver
August 1986
Revised March 2000
DM74LS244
Octal 3-STATE Buffer/Line Driver/Line Receiver
General Description
These buffers/line drivers are designed to improve both the
performance and PC board density of 3-STATE buffers/
drivers employed as memory-address drivers, clock driv-
ers, and bus-oriented transmitters/receivers. Featuring 400
mV of hysteresis at each low current PNP data line input,
they provide improved noise rejection and high fanout out-
puts and can be used to drive terminated lines down to
133Ω.
Features
s
3-STATE outputs drive bus lines directly
s
PNP inputs reduce DC loading on bus lines
s
Hysteresis at data inputs improves noise margins
s
Typical I
OL
(sink current)
24 mA
s
Typical I
OH
(source current)
−15
mA
s
Typical propagation delay times
Inverting
Noninverting
10.5 ns
12 ns
18 ns
s
Typical enable/disable time
Inverting
Noninverting
130 mW
135 mW
s
Typical power dissipation (enabled)
Ordering Code:
Order Number
DM74LS244WM
DM74LS244SJ
DM74LS244N
Package Number
M20B
M20D
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Inputs
G
L
L
H
L
=
LOW Logic Level
H
=
HIGH Logic Level
X
=
Either LOW or HIGH Logic Level
Z
=
High Impedance
Output
A
L
H
X
Y
L
H
Z
© 2000 Fairchild Semiconductor Corporation
DS008442
www.fairchildsemi.com

DM74LS244WMX Related Products

DM74LS244WMX DM74LS244SJX
Description Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, PDSO20, 0.300 INCH, MS-013, SOIC-20 Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, PDSO20, 5.30 MM, EIAJ TYPE2, SOP-20
Is it Rohs certified? incompatible incompatible
Maker Fairchild Fairchild
Parts packaging code SOIC SOIC
package instruction 0.300 INCH, MS-013, SOIC-20 5.30 MM, EIAJ TYPE2, SOP-20
Contacts 20 20
Reach Compliance Code unknown unknown
Control type ENABLE LOW ENABLE LOW
series LS LS
JESD-30 code R-PDSO-G20 R-PDSO-G20
JESD-609 code e0 e0
length 12.8 mm 12.6 mm
Load capacitance (CL) 45 pF 45 pF
Logic integrated circuit type BUS DRIVER BUS DRIVER
MaximumI(ol) 0.024 A 0.024 A
Number of digits 4 4
Number of functions 2 2
Number of ports 2 2
Number of terminals 20 20
Maximum operating temperature 70 °C 70 °C
Output characteristics 3-STATE 3-STATE
Output polarity TRUE TRUE
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP
Encapsulate equivalent code SOP20,.4 SOP20,.3
Package shape RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE
method of packing TAPE AND REEL TAPE AND REEL
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED
power supply 5 V 5 V
Maximum supply current (ICC) 54 mA 54 mA
Prop。Delay @ Nom-Sup 18 ns 18 ns
propagation delay (tpd) 18 ns 18 ns
Certification status Not Qualified Not Qualified
Maximum seat height 2.65 mm 2.1 mm
Maximum supply voltage (Vsup) 5.25 V 5.25 V
Minimum supply voltage (Vsup) 4.75 V 4.75 V
Nominal supply voltage (Vsup) 5 V 5 V
surface mount YES YES
technology TTL TTL
Temperature level COMMERCIAL COMMERCIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING
Terminal pitch 1.27 mm 1.27 mm
Terminal location DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED
width 7.5 mm 5.3 mm
Base Number Matches 1 1
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