SN74AHCT1G32DCKR

Overview

The SN74AHCT1G32DCKR is a single-channel, two-input positive OR gate from the Texas Instruments SN74AHCT1G series. It operates within a supply voltage range of 4.5 V to 5.5 V and features low input capacitance for high-speed performance. The device utilizes CMOS technology with TTL-compatible inputs, ensuring reliable logic level translation in 5 V systems. Packaged in a compact SC-70-5 surface-mount case, it supports operation across an extended industrial temperature range from -40°C to +125°C.

Feature Summary

• TTL-compatible inputs allow direct interfacing with standard TTL logic devices without external pull-up resistors.
• High-speed operation is achieved through low propagation delay characteristics typical of the AHC family.
• Wide operating temperature range ensures stable functionality in demanding industrial and automotive environments.

Applications

• Signal routing and selection circuits in embedded systems
• Logic level translation between TTL and CMOS domains
• Data bus arbitration and control logic in microcontroller interfaces

Procurement Notes

Verify the specific suffix 'DCKR' corresponds to the SC-70-5 package and reel packaging configuration. Confirm that the design requires 5 V operation, as this AHCT variant does not support lower voltages like 3.3 V or 2.5 V. Ensure thermal management meets the specified junction temperature limits for the intended application environment.

Selection Notes

Select this component when TTL-compatible inputs are required at 5 V operation. Unlike the SN74AHC1G32, which accepts lower voltages, the AHCT series strictly requires a 5 V supply. Consider the SC-70-5 footprint constraints and verify pinout compatibility with existing PCB layouts against similar single-gate packages.

Part Context

This part belongs to the SN74AHCT1Gxx family of single-function gates designed for space-constrained applications. It shares the same logical function as the SN74AHC1G32 but differs in input threshold specifications to maintain compatibility with legacy TTL standards while offering improved speed over older 74HC counterparts.

Replacement Considerations

SN74AHC1G32DCKR offers similar physical dimensions but lacks TTL-compatible inputs. SN74LVC1G32DCKR provides wider voltage flexibility but uses LVC input thresholds. Verify electrical compatibility before substituting these alternatives.