74LS153 DIP Dual 1-of-4 Line Data Selectors/Multiplexers

The 74LS153 is a high speed TTL integrated circuit containing two independent 1-of-4 data selectors and multiplexers. Each of the two sections features its own four data inputs and an individual active low strobe input. While each multiplexer section operates independently, they share a common set of two binary select inputs which determine which data input is routed to the respective outputs.

This dual configuration is highly efficient for applications requiring the simultaneous selection of two bits of data from two different sources. When the strobe input for a section is high, the output for that section is forced to a low logic level regardless of the data or select inputs. The 74LS153 is commonly used in parallel-to-serial conversion, data routing, and as a function generator to implement complex logic for digital control systems.

KEY FEATURES

• Dual independent 4-line to 1-line multiplexers
• Common binary select inputs for synchronized switching
• Separate active low strobe inputs for each multiplexer
• Low power Schottky technology for high speed switching
• Simplifies data routing in multi-bus systems
• Standard 16 pin dual in line package

SPECIFICATIONS

• Supply Voltage 4.75V to 5.25V
• Operating Temperature 0 to 70 Celsius
• Logic Type TTL Low Power Schottky
• Typical Propagation Delay 14ns
• High Level Output Current -0.4mA
• Low Level Output Current 8mA
• Input Voltage High 2.0V Minimum

INTERFACES

• 1C0 to 1C3 Multiplexer 1 data inputs 0 through 3
• 2C0 to 2C3 Multiplexer 2 data inputs 0 through 3
• A Select input bit 0 least significant
• B Select input bit 1 most significant
• 1G Multiplexer 1 strobe input active low
• 2G Multiplexer 2 strobe input active low
• 1Y Multiplexer 1 data output
• 2Y Multiplexer 2 data output
• VCC Positive supply voltage
• GND Ground reference