SN74F251B Series

1-of-8 Data Selectors/Multiplexers With 3-State Outputs

Catalog

1-of-8 Data Selectors/Multiplexers With 3-State Outputs

Part	Mounting Type	Voltage Supply Source	Circuit [custom]	Circuit [custom]	Package / Case	Package / Case	Package / Case	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Independent Circuits	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Type	Package / Case [x]	Package / Case [y]
Texas Instruments SN74F251BN	Through Hole	Single Supply	8:1	1	0.3 in	16-DIP	7.62 mm	3 mA	24 mA	70 °C	0 °C	1	4.5 V	5.5 V	16-PDIP	Multiplexer
Texas Instruments SN74F251BD	Surface Mount	Single Supply	8:1	1		16-SOIC		3 mA	24 mA	70 °C	0 °C	1	4.5 V	5.5 V	16-SOIC	Multiplexer	0.154 in	3.9 mm

Catalog

1-of-8 Data Selectors/Multiplexers With 3-State Outputs

Key Features

• 3-State Versions of SN54F151B and SN74F151B3-State Outputs Interface Directly With System BusPerforms Parallel-to-Serial ConversionComplementary Outputs Provide True and Inverted DataPackage Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs3-State Versions of SN54F151B and SN74F151B3-State Outputs Interface Directly With System BusPerforms Parallel-to-Serial ConversionComplementary Outputs Provide True and Inverted DataPackage Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs

Description

These data selectors/multiplexers contain full binary decoding to select one of eight data sources and feature strobe-controlled complementary outputs. The 3-state outputs can interface with and drive data lines of bus-organized systems. When the strobe (G\) input is high, both outputs are in a high-impedance state in which both the upper and lower transistors of each totem-pole output are off, and the output neither drives nor loads the bus significantly. The SN54F251B is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74F251B is characterized for operation from 0°C to 70°C. D0, D1,...D7 = the level of the respective D input. These data selectors/multiplexers contain full binary decoding to select one of eight data sources and feature strobe-controlled complementary outputs. The 3-state outputs can interface with and drive data lines of bus-organized systems. When the strobe (G\) input is high, both outputs are in a high-impedance state in which both the upper and lower transistors of each totem-pole output are off, and the output neither drives nor loads the bus significantly. The SN54F251B is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74F251B is characterized for operation from 0°C to 70°C. D0, D1,...D7 = the level of the respective D input.