The 74HC125D,652 is a high-speed silicon gate CMOS device featuring four independent buffers with 3-state outputs. This device is pin-compatible with Low-power Schottky TTL (LSTTL) and is part of the 74HC family of integrated circuits known for their high-speed operation and low power consumption.

Applications:

• Data transmission
• Address line drivers
• Clock drivers
• Memory interface
• Logic level translation

Features:

• Quadruple buffer with 3-state outputs
• High-speed operation: tpd = 7 ns (typical) at VCC = 5V
• Low power dissipation: ICC = 4 μA (maximum) at VCC = 5V
• Wide operating voltage range: 2V to 6V
• High noise immunity: NIL = 0.3 VCC; NIH = 0.7 VCC
• Complies with JEDEC standard no. 7A
• ESD protection: HBM JESD22-A114F exceeds 2000 V, MM JESD22-A115-A exceeds 200 V
• Available in SO14 (Small Outline) package

Benefits:

• Improved system performance: Due to its high-speed operation, it reduces propagation delay in critical paths.
• Reduced power consumption: CMOS technology results in significantly lower power consumption compared to TTL devices, making it suitable for battery-powered applications.
• Enhanced noise immunity: High noise immunity reduces the likelihood of false triggering due to noise.
• Simplified system design: 3-state outputs allow multiple devices to share the same bus, simplifying system design and reducing component count.
• Reliable operation: ESD protection ensures the device can withstand electrostatic discharge events, improving reliability.

Additional Details:

The 74HC125D,652 operates over a temperature range of -40°C to +125°C. The 3-state outputs are controlled by an output enable (OE) input. When OE is low, the output is enabled, and the buffer operates normally. When OE is high, the output is in a high-impedance state, effectively disconnecting the device from the bus. The input and output voltage levels are compatible with other CMOS and TTL logic devices when operated within the specified voltage range. It's commonly used in applications where buffering and signal isolation are needed.