The TC74LCX373F is an octal D-type transparent latch with 3-state outputs, designed for high-speed, low-voltage operation. It is part of Toshiba's LCX family, known for its advanced CMOS technology, providing significant speed improvements compared to conventional CMOS logic while maintaining low power consumption. This device is housed in a SOIC (Small Outline Integrated Circuit) package, making it suitable for a wide range of applications.

Applications

• Data buffering
• Address latching
• Memory interface
• Microprocessor systems
• Peripheral control

Features

• Low-voltage operation: 2.0 V to 3.6 V
• High-speed operation: tpd = 4.5 ns (typical) at VCC = 3.3 V
• 3-state outputs for bus-oriented applications
• Output impedance control
• SOIC package for surface mount assembly
• Low power consumption

Benefits

• Improved system performance due to high-speed operation
• Reduced power consumption, extending battery life in portable devices
• Versatile interface with 3-state outputs
• Simplified system design with transparent latch operation
• Reliable operation over a wide voltage range

Additional Details

The TC74LCX373F features eight D-type latches with a common latch enable (LE) input. When LE is high, the Q outputs follow the data (D) inputs. When LE is low, data is latched. The output enable (OE) input controls the 3-state outputs. When OE is low, the outputs are enabled; when OE is high, the outputs are in the high-impedance state. This device is designed with an output impedance control circuit to minimize reflections and signal distortion in high-speed applications. The device's inputs are tolerant to 5.5 V, allowing interface with 5 V logic circuits even when operating at lower supply voltages. The operating temperature range is -40°C to +85°C, making it suitable for a wide range of environments. The propagation delay is typically 4.5 ns at 3.3V, ensuring fast and efficient data transfer. The input capacitance is low, typically around 5 pF, reducing the load on the driving circuit. The device supports a wide operating temperature, and it is RoHS compliant.