SN74AS253A Series

Dual 1-Of-4 Data Selectors/Multiplexers With 3-State Outputs

Catalog

Dual 1-Of-4 Data Selectors/Multiplexers With 3-State Outputs

Part	Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Independent Circuits	Circuit [custom]	Circuit [custom]	Operating Temperature [Max]	Package / Case	Package / Case [x]	Package / Case [y]	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Supplier Device Package	Voltage Supply Source
Texas Instruments SN74AS253ADRG4	Multiplexer	4.5 V	5.5 V	Surface Mount	1	2	4:1	70 °C	16-SOIC	0.154 in	3.9 mm	24 mA	2.6 mA	16-SOIC	Single Supply
Texas Instruments SN74AS253AD	Multiplexer	4.5 V	5.5 V	Surface Mount	1	2	4:1	70 °C	16-SOIC	0.154 in	3.9 mm	24 mA	2.6 mA	16-SOIC	Single Supply
Texas Instruments SN74AS253ADR	Multiplexer	4.5 V	5.5 V	Surface Mount	1	2	4:1	70 °C	16-SOIC	0.154 in	3.9 mm	24 mA	2.6 mA	16-SOIC	Single Supply

Catalog

Dual 1-Of-4 Data Selectors/Multiplexers With 3-State Outputs

Key Features

• 3-State Versions of the ´ALS153 and SN74AS153Permits Multiplexing From n Lines toOne LinePerforms Parallel-to-Serial ConversionPackage Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs3-State Versions of the ´ALS153 and SN74AS153Permits Multiplexing From n Lines toOne LinePerforms Parallel-to-Serial ConversionPackage Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

Description

These data selectors/multiplexers contain inverters and drivers to supply full binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two 4-line sections. The 3-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state), the low impedance of the single enabled output drives the bus line to a high or low logic level. Each output has its own output-enable () input. The output is disabled whenis high. The SN54ALS253 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS253 and SN74AS253A are characterized for operation from 0°C to 70°C. Select inputs A and B are common to both sections. These data selectors/multiplexers contain inverters and drivers to supply full binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two 4-line sections. The 3-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state), the low impedance of the single enabled output drives the bus line to a high or low logic level. Each output has its own output-enable () input. The output is disabled whenis high. The SN54ALS253 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS253 and SN74AS253A are characterized for operation from 0°C to 70°C. Select inputs A and B are common to both sections.