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SN54HC191TDE1 is listed in the Counter Dividers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC BINARY COUNTER 4-BIT DIE. Review the specifications below when checking this part for your BOM.
The SN54HC191TDE1 is a high-speed CMOS logic component manufactured by Texas Instruments, belonging to the HC series. It functions as a synchronous 4-bit binary up/down counter with asynchronous load capabilities. The device is supplied in a bare die format, intended for integration into custom substrates or hybrid circuits rather than standard surface-mount packages. It supports bidirectional counting operations controlled by a single direction input pin.
Verify that the design infrastructure supports direct die attachment processes, as this component lacks a traditional package. Confirm compatibility with the specific substrate material and bonding techniques required for bare die integration. Ensure that thermal management strategies account for the exposed die configuration during operation within the target system environment.
Select this component only when a bare die form factor is explicitly required for space-constrained or specialized packaging applications. Standard PCB mounting solutions require packaged equivalents such as the SN74HC191DR. Evaluate manufacturing capabilities for die bonding and wire interconnection before proceeding with procurement decisions.
This part belongs to the SN54HC191-DIE family of counters. It shares functional characteristics with other HC series devices but is distinguished by its unencapsulated die construction. The SN54 prefix indicates military-grade qualification standards, differentiating it from commercial variants like the SN74HC191 series.
Direct replacements are limited due to the bare die format. Packaged alternatives include SN74HC191DR or SN74HC191NS for standard board-level applications. Verify if the system can accommodate standard SOIC packages instead of requiring custom die integration.
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