SN74CBT16212AZQLR

Overview

The SN74CBT16212AZQLR is a 24-bit FET bus-exchange switch manufactured by Texas Instruments. It operates within a supply voltage range of 4 V to 5.5 V and supports an operating temperature range from -55°C to 125°C. The device provides high-speed TTL-compatible switching with a typical on-state resistance of 4 Ω at 4.5 V and a maximum propagation delay of 0.35 ns at 5 V. It features ESD protection exceeding 200 V machine model and latch-up performance exceeding 250 mA per JESD 17.

Feature Summary

• Provides 24 bits of high-speed bus switching or exchanging capabilities
• Features low on-state resistance for minimal signal propagation delay
• Includes data-select terminals (S0, S1, S2) for routing signals between four ports
• Offers robust ESD protection and high latch-up immunity

Applications

• High-speed digital bus exchange systems
• Data routing in multi-port communication interfaces
• Signal path selection in industrial control applications

Procurement Notes

Verify the specific ZQL package suffix indicates the lead-free ceramic dual flatpack variant suitable for extended temperature ranges. Confirm that the -55°C to 125°C rating aligns with your environmental requirements. Ensure design compatibility with the 56-pin GQL/ZQL footprint and check for any specific handling guidelines associated with ceramic packages.

Selection Notes

Select this component when a 24-bit wide bus exchange function is required alongside extreme temperature tolerance. The ZQL package offers hermetic sealing options compared to plastic variants. Consider the 56-pin layout constraints and verify that the TTL-compatible input levels match your system logic voltages.

Part Context

This part belongs to the Widebus family of bus switches and exchangers from Texas Instruments. It is the commercial grade version of the SN54CBT16212A military device. The ZQL suffix specifically denotes the ceramic package variant designed for harsh environments requiring wider thermal operation than standard plastic packages.

Replacement Considerations

SN74CBT16212AGQLR