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7438SJ Datasheet

  • 7438SJ

  • Quad 2-Input NAND Buffers with Open-Collector Outputs

  • 5頁(yè)

  • FAIRCHILD

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DM7438 鈥?7438 Quad 2-Input NAND Buffers with Open-Collector Outputs
September 1986
Revised February 2000
DM7438 鈥?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.
N
1
(I
OH
)
=
total maximum output high current
for all outputs tied to pull-up resistor
N
2
(I
IH
)
=
total maximum input high current for
all inputs tied to pull-up resistor
N
3
(I
IL
)
=
total maximum input low current for
all inputs tied to pull-up resistor
Pull-Up Resistor Equations
Where:
Ordering Code:
Order Number
DM7438M
DM7438N
7438SJ
Package Number
M14A
N14A
M14D
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Connection Diagram
Function Table
Y
=
AB
Inputs
A
L
L
H
H
H
=
HIGH Logic Level
L
=
LOW Logic Level
Output
B
L
H
L
H
Y
H
H
H
L
漏 2000 Fairchild Semiconductor Corporation
DS006513
www.fairchildsemi.com

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