74AC32TTR

Overview

The STMicroelectronics 74AC32TTR is a quad 2-input OR gate fabricated in sub-micron silicon gate C2MOS technology. It operates within a supply voltage range of 2V to 6V and features high-speed performance with a typical propagation delay of 4ns at VCC = 5V. The device provides symmetrical output impedance with minimum drive capabilities of |IOH| = IOL = 24mA. It includes protection circuits against static discharge, offering 2kV ESD immunity, and ensures improved latch-up immunity for stable operation.

Feature Summary

• Advanced high-speed CMOS logic utilizing sub-micron silicon gate and double-layer metal wiring C2MOS technology
• High noise immunity with balanced propagation delays and 50Ω transmission line driving capability
• Integrated protection circuits on all inputs and outputs providing 2kV ESD immunity and transient excess voltage tolerance

Applications

• Digital signal processing systems requiring fast logical operations
• Industrial control applications needing high noise immunity
• Consumer electronics utilizing low power dissipation logic gates

Procurement Notes

Verify the component status as the datasheet indicates this specific part may be obsolete. Confirm package compatibility with TSSOP-14 mechanical dimensions before ordering. Ensure design-in validation accounts for the specified operating temperature range of -55°C to 125°C and absolute maximum ratings to prevent damage during functional testing.

Selection Notes

Select this component when high-speed logic switching is required alongside low power consumption characteristics. The 74AC32TTR is suitable for designs needing direct interface with TTL or NMOS components due to its compatible input/output characteristics. Consider the 2V to 6V operating voltage range for flexibility in various power domain architectures.

Part Context

This component belongs to the 74AC series of advanced CMOS logic devices manufactured by STMicroelectronics. It serves as a plug-in replacement for LSTTL devices while maintaining CMOS low power dissipation. The quad 2-input OR gate configuration allows for complex logical function implementation in compact integrated circuit form factors.

Replacement Considerations

The datasheet notes pin and function compatibility with the 74LS32 series. Designers should verify electrical parameter differences between AC and LS families when substituting.