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QS74FCT193ATZ is listed in the Counter Dividers range at ChipApex. The manufacturer field lists Quality Semiconductor. Its product description is BINARY COUNTER, FCT SERIES. Review the specifications below when checking this part for your BOM.
The QS74FCT193ATZ is a synchronous presettable binary up/down counter from the FCT series, manufactured by Quality Semiconductor. It features an internal look-ahead carry mechanism designed for high-speed applications. The device operates within a temperature range of -40°C to 85°C and utilizes CMOS technology. It is housed in a PZIP24 package with 24 terminals. The component functions as a single-function, 8-bit counter with true output characteristics.
Verify the specific package variant against the datasheet, as the model designation implies a PZIP24 form factor which may differ from standard surface-mount options. Confirm that the manufacturer Quality Semiconductor Inc is the active source for this part number, as some FCT series components are now produced under different corporate entities. Ensure compatibility with existing board layouts requiring through-hole or specialized plastic zip packaging.
Select this component when a synchronous 8-bit up/down counter with internal carry lookahead is required for speed-critical designs. The FCT series offers CMOS input compatibility with TTL output drive capabilities. Consider the PZIP24 package constraints if space or mounting type is a limiting factor compared to SSOP alternatives.
This part belongs to the FCT (Fast CMOS) logic family, bridging the gap between standard CMOS and ECL speeds. Quality Semiconductor Inc produces this line, focusing on high-performance logic solutions. The QS prefix typically denotes the manufacturer's specific coding for this series.
Public confirmed substitute part numbers: None identified.
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