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DM7438 Scheda tecnica(PDF) 1 Page - Fairchild Semiconductor

Il numero della parte DM7438
Spiegazioni elettronici  Quad 2-Input NAND Buffers with Open-Collector Outputs
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Produttore elettronici  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

DM7438 Scheda tecnica(HTML) 1 Page - Fairchild Semiconductor

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© 2001 Fairchild Semiconductor Corporation
DS006513
www.fairchildsemi.com
September 1986
Revised July 2001
DM7438 • 7438
Quad 2-Input NAND Buffers with Open-Collector Outputs
General Description
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
operation.
Pull-Up Resistor Equations
Where:
N1 (IOH) = total maximum output high current
for all outputs tied to pull-up resistor
N2 (IIH) = total maximum input high current for
all inputs tied to pull-up resistor
N3 (IIL) = total maximum input low current for
all inputs tied to pull-up resistor
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Y
= AB
H
= HIGH Logic Level
L
= LOW Logic Level
Order Number
Package Number
Package Description
DM7438M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
DM7438N
N14A
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
7438SJ
M14D
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Inputs
Output
AB
Y
LL
H
LH
H
HL
H
HH
L


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