The TC74LCX157FK from Toshiba Semiconductor and Storage is a low-voltage CMOS quad 2-input multiplexer, belonging to the LCX family of logic devices. This multiplexer is designed for use in systems operating at low voltages (2.0V to 3.6V) while providing high-speed performance and low power consumption. It is commonly used in applications requiring selection between multiple data sources.

Applications

• Data selection
• Address decoding
• Memory multiplexing
• Signal routing
• Function generation

Features

• Low-voltage operation: VCC = 2.0 V to 3.6 V
• High-speed operation: tpd = 4.5 ns (typ) at VCC = 3.3 V
• Low power dissipation: ICC = 10 μA (max) at Ta = 25°C
• Output drive capability: IOL/IOH = ±24 mA (min) at VCC = 3.0 V
• TTL compatible inputs: VIH = 1.7 V (min), VIL = 0.8 V (max)
• Operating temperature range: -40 to 85°C
• Package: SSOP (Shrink Small Outline Package)

Benefits

• Extended battery life in portable devices due to low power consumption.
• Improved system performance due to high-speed operation.
• Direct interface with TTL logic levels.
• Robust output drive capability for driving multiple loads.
• Reliable performance over a wide temperature range.
• Compact package size, ideal for space-constrained designs.

Additional Details

The TC74LCX157FK comes in an SSOP16 (Shrink Small Outline Package) and is pin-compatible with standard 74HC/HCT families. The device features two data inputs per multiplexer (A and B), a select input (S), and an output (Y). When the select input is low, the A input is routed to the output. When the select input is high, the B input is routed to the output. Input protection circuitry prevents damage from electrostatic discharge. This multiplexer is suitable for applications that require high-speed data selection with minimal power consumption.

Its wide operating temperature range makes it suitable for industrial and automotive applications. Due to its features, it is commonly employed in digital systems, including computers, communication equipment, and control systems.