REI Datasheet
SN5433, SN54LS33, SN7433, SN74LS33
Quadruple 2-Input Positive-NOR Buffers With Open-Collector Outputs
These devices contain four independent 2-input NOR buffer gates with open-collector outputs. Open-
collector outputs require resistive pull-up to perform logically but can deliver higher VOH levels and
are commonly used in wired-AND applications.
The SN5433 and SN54LS33 are characterized for operation over the full military temperature range
of -55°C to 125°C. The SN7433 and SN74LS33 are characterized for operation from 0°C to 70°C.
Quality Overview
Rochester Electronics
Manufactured Components
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ISO-9001
AS9120ꢀcertification
QualifiedꢀManufacturersꢀListꢀ(QML)ꢀMIL-PRF-38535
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀClassꢀQꢀMilitary
Rochester branded components are
manufactured using either die/wafers
purchased from the original suppliers
or Rochester wafers recreated from the
originalꢀIP.ꢀAllꢀrecreationsꢀareꢀdoneꢀwithꢀ
theꢀapprovalꢀofꢀtheꢀOCM.ꢀ
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Class V Space Level
QualifiedꢀSuppliersꢀListꢀofꢀDistributorsꢀ(QSLD)
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Rochester is a critical supplier to DLA and
meets all industry and DLA standards.
Partsꢀ areꢀ testedꢀ usingꢀ originalꢀ factoryꢀ
test programs or Rochester developed
test solutions to guarantee product
meetsꢀorꢀexceedsꢀtheꢀOCMꢀdataꢀsheet.
RochesterElectronics, LLCiscommittedtosupplying
products that satisfy customer expectations for
quality and are equal to those originally supplied by
industry manufacturers.
The original manufacturer’s datasheet accompanying this document reflects the performance
and specifications of the Rochester manufactured version of this device. Rochester Electronics
guarantees the performance of its semiconductor products to the original OEM specifications.
‘Typical’ values are for reference purposes only. Certain minimum or maximum ratings may be
based on product characterization, design, simulation, or sample testing.
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