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QS74FCT191ATS0X is listed in the Counter Dividers range at ChipApex. The manufacturer field lists Quality Semiconductor. Its product description is BINARY COUNTER, FCT SERIES, SYN. Review the specifications below when checking this part for your BOM.
Counter Dividers specifications for QS74FCT191ATS0X
- Description：BINARY COUNTER, FCT SERIES, SYN
- Series：*
- Mfr：Quality Semiconductor
- Package：Bulk
- Logic Type：-
- Direction：-
- Number of Elements：-
- Number of Bits per Element：-
- Reset：-
- Timing：-
- Count Rate：-
- Trigger Type：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Voltage - Supply：-
- Grade：-
- Qualification：-
Counter Dividers datasheet and documents for QS74FCT191ATS0X
Counter Dividers Overview
The QS74FCT191ATS0X is a synchronous, presettable 4-bit up/down binary counter from the FCT logic series. It operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in a TSSOP package. The device features positive-edge triggering for clock inputs and includes asynchronous reset functionality. It is designed for industrial temperature ranges and complies with RoHS standards.
Counter Dividers Feature Summary
- Synchronous 4-bit up/down counting capability with parallel load function
- Positive-edge triggered clock operation for precise timing control
- Asynchronous reset input for immediate output clearing
Counter Dividers Applications
- Digital frequency division circuits
- Programmable timing sequences
- Address generation in memory systems
Counter Dividers Procurement Notes
Verify the manufacturer designation carefully, as Quality Semiconductor products are often distributed by third-party entities like Rochester Electronics. Confirm the specific suffix indicates the TSSOP package and ensure RoHS compliance documentation matches the current revision. Cross-reference the part number against active lifecycle status to avoid obsolete stock.
Counter Dividers Selection Notes
Select this component when a synchronous 4-bit counter with up/down direction control is required in a compact surface-mount form factor. Ensure the system voltage aligns with the 4.5 V to 5.5 V operating range. Consider the TSSOP package dimensions for PCB layout constraints compared to standard SOIC alternatives.
Counter Dividers Part Context
This part belongs to the 74FCT family, known for CMOS compatibility with TTL-level inputs. It serves as a digital logic element for sequential operations. The 'QS' prefix denotes Quality Semiconductor manufacturing, distinguishing it from Texas Instruments CY74FCT variants which share similar logical functions but may differ in electrical specifications or packaging options.
Counter Dividers Replacement Considerations
The CY74FCT191ATSOC from Texas Instruments is a documented functional substitute. Verify pinout compatibility and electrical parameter alignment before substitution.
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