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Product Detailed Parameters
- Description：FAST OCTAL D FLIP FLOPS & RESET
- Series：-
- Mfr：Harris Corporation
- Package：Bulk
- Function：Master Reset
- Type：D-Type
- Output Type：Non-Inverted
- Number of Elements：1
- Number of Bits per Element：8
- Clock Frequency：70 MHz
- Max Propagation Delay @ V, Max CL：7ns @ 5V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：15mA, 48mA
- Voltage - Supply：4.75V ~ 5.25V
- Current - Quiescent (Iq)：8 µA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-SOIC
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Input Capacitance：10 pF
- Grade：-
- Qualification：-
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Overview
The CD74FCT273TM is an octal D-type flip-flop from the FCT series, manufactured by Harris. It features positive edge triggering and true outputs in a CMOS technology. The device is housed in a PDSO20 (SOIC-20) package with 20 terminals. It operates within a temperature range of -40 °C to 85 °C. The maximum output current is 0.048 A, and it has a load capacitance of 50 pF. The component is not RoHS compliant.
Feature Summary
- Octal D-type flip-flop configuration with single function unit
- Positive edge triggered operation for data latching
- True output polarity providing non-inverted signals
- CMOS technology compatible with TTL input levels
Applications
- High-speed digital data storage applications
- Parallel-to-serial data conversion circuits
- Register files in microprocessor systems
- State machine implementation in logic designs
Procurement Notes
Verify RoHS compliance status as the component is listed as non-compliant. Confirm package authenticity for PDSO20/SOIC-20 form factor. Check manufacturer documentation for lead-free alternatives if environmental regulations require compliance. Ensure supply chain sources are authorized distributors to avoid counterfeit components.
Selection Notes
Select this component for applications requiring octal data storage with high-speed performance. Consider the SOIC-20 package for surface-mount assembly constraints. Evaluate thermal requirements against the -40 °C to 85 °C operating range. Compare propagation delay characteristics with system timing requirements to ensure signal integrity.
Part Context
This part belongs to the Harris FCT series of logic integrated circuits. The FCT line combines Fast CMOS speed with TTL compatibility. The CD74FCT273 variant specifically provides octal flip-flop functionality. This series was designed for high-performance digital systems requiring reliable data retention and fast switching speeds.
Replacement Considerations
Check Texas Instruments CY74FCT273 variants for pin-compatible replacements. Verify electrical parameters match original specifications. Confirm package dimensions align with existing PCB footprints. Review manufacturer transition notices for updated part numbers.
