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DM5438J-DM7438M-DM7438N
7 V, quad 2-input NAND buffer with open-collector output
g? Natignal .
[ Semiconductor
DM5438/DM7438 Quad 2-lnput NAND Buffers
with Open-Collector Outputs
General Description
Pull-Up Resistor Equations
This device contains four independent gates each of which
performs the logic NAND function. The open-collector out-
puts require external pull-up resistors for proper logical op-
eration.
Connection Diagram
= -icih1i.r0i/.o_H.
N, (Ion) + N2 (IIH)
Vcc (Max) - VOL
kx - N3 (IIL)
Where: N, (IOH) = total maximum output high current tor all
outputs tied to pull-up resistor
N2 (lm) = total maximum input high current for all
inputs tied to pull-up resistor
N3 (IN) = total maximum input low current for all
inputs tied to pull-up resistor
Oual-ln-Llne Package
vcc u " " M M "
In n l,, ln Ill ' a
t t J a 5 s 7
At M YI A2 " " Gun
TL/F/66t3-1
Order Number DM5438J, DM5438W, DM7438M or DM7438N
See NS Package Number J14A, MMA, mm or W143
Function Table
Inputs Output
H = High Logic Level
L a Low Logic Level
Absolute Maximum Ratings (Note)
It Mllltary/Aerospace specllled devlces are required,
please contact the National Semiconductor Sales
offlee/Dlatrlhutttrs for avallablllty and speclticatlons.
Note: The "Absolute Maximum Ratings" are those values
beyond which the safety of the device cannot be guaran-
teed. The de vice should not be operated at these limits. The
parametric values defined in the "Electrical Characteristics"
table are not guaranteed at the absolute maximum ratings.
The ''Retromnmmfstf Operating Conditions" table will define
the conditions for actual device operation.
Supply Voltage 7V
Input Voltage 5.5V
Output Voltage 7V
Operating Free Air Temperature Range
DM54 -55''C to + 125°C
DM74 ty'C to + 7ty'C
Storage Temperature Range
-65°C to + 150°C
Recommended Operating Conditions
Symbol Parameter DM5438 DM7438 Units
Min Nom Max Min Nom Max
VCC Supply Voltage 4.5 5 5.5 4.75 5 5.25 V
VIH High Level Input Voltage 2 2 V
Ihr. Low Level Input Voltage 0.8 0.8 V
VOH High Level Output Voltage 5.5 5.5 V
iot. Low Level Output Current 48 48 mA
TA Free Air Operating Temperature - 55 125 0 70 "C
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol Parameter Conditions Min Typ Max Units
(Note "
V. InputClamp Voltage Vcc = Min, II = --12 mA -1.5 V
ICEX High LevelOutput Vcc = Min, vo = 5.5V
Current " = Max 250 PSA
VOL Low LevelOutput VCC = Min, lor. = Max 0 4 V
Voltage VLH = Min .
I. Input Current @Max Vcc = Max,1h = 5.5V
Input Voltage
IIH High Level InputCurrent VCC = Max.V. = 2.4V 40 pA
lit. Low Level Input Current Vcc = Max, VI = 0.4V -1.6 mA
ICCH Supply Current with VCC = Max
Outputs High 5 mA
'CCL Supply Current with Vcc = Max 34 54 mA
Outputs Low
Switching Characteristics at Vcc = 5V and TA = 25''C (See Section 1 for TestWaveforms and Output Load)
Symbol Parameter Condltlons Mln Max Units
tpLH Propagation Delay Time CL = 45 pF 22 ns
Low to High Level Output RL --- 1330
tpHL Propagation Delay Time 18 ns
High to Low Level Output
Nate 1: All lypicals are at Vcc = 5V. TA = 25'C.
This datasheet has been :
www.ic-phoenix.com
Datasheets for electronic components.
National Semiconductor was acquired by Texas Instruments.
corp/docs/irwestor_relations/Pr_09_23_201 1_national_semiconductor.html
This file is the datasheet for the following electronic components:
DM5438J - product/dm5438j?HQS=T|-nulI-nu|I-dscatalog-df-pf-nulI-wwe
DM5438W - product/dm5438w?HQS=T|-nulI-nu|I-dscatalog-df—pf—nuII-wwe
DM7438M - product/dm7438m?HQS=TI-nuII-nulI-dscatalog-df-pf-null-wwe
DM7438N - product/dm7438n?HQS=T|-nu|I-nuII-dscatalog-df—pf—nuII-wwe
