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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20SOP
- Series：74LVTH
- Mfr：Fairchild Semiconductor
- Package：Tube
- Function：Master Reset
- Type：D-Type
- Output Type：Non-Inverted
- Number of Elements：1
- Number of Bits per Element：8
- Clock Frequency：150 MHz
- Max Propagation Delay @ V, Max CL：4.9ns @ 3.3V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：32mA, 64mA
- Voltage - Supply：2.7V ~ 3.6V
- Current - Quiescent (Iq)：190 µA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-SOP
- Package / Case：20-SOIC (0.209", 5.30mm Width)
- Input Capacitance：3 pF
- Grade：-
- Qualification：-
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Overview
The Fairchild Semiconductor 74LVTH273SJ is a low-voltage octal D-type flip-flop designed for 3.3-V VCC operation. It features TTL-compatible interfaces, allowing integration into 5V environments. The device includes a clear input and provides true outputs. Manufactured in a 20-pin SOP package, it utilizes BICMOS technology. This component is classified as obsolete and no longer in production by the manufacturer.
Feature Summary
- Octal D-type flip-flop architecture with single clear input
- TTL interface capability for 5V environment compatibility
- Low-voltage design optimized for 3.3-V VCC operation
- True output configuration with 3-state bus organization
Applications
- Bus organized system applications
- Low-voltage memory register implementations
- Interface circuits between 3.3V logic and 5V systems
- Data storage in portable electronic devices
Procurement Notes
This component is officially marked as obsolete and not in production by Fairchild Semiconductor. Sourcing is limited to third-party distributors or surplus markets. Verify authenticity carefully due to potential counterfeit risks. Check RoHS compliance status if required for specific regulatory standards. Lead times vary significantly among secondary suppliers. No direct replacement from the original manufacturer is available.
Selection Notes
Select this part only if legacy compatibility with 3.3V systems interfacing with 5V logic is required. Consider the obsolete status when planning long-term product lifecycles. Evaluate alternative modern equivalents from current manufacturers if new designs are feasible. Ensure the 20-pin SOP package fits the existing PCB footprint constraints. Verify voltage levels match the target application requirements strictly.
Part Context
The 74LVTH273SJ belongs to the LVT (Low Voltage TTL) series of logic components. It is an octal flip-flop variant within the broader 74-series family. The 'SJ' suffix typically denotes the 20-pin Small Outline Package. Fairchild Semiconductor, now part of onsemi, originally produced this line. The LVTH designation indicates TTL-compatible inputs with low-voltage operation.
Replacement Considerations
No official direct substitute is listed. Potential cross-references include SN74LVTH273 from Texas Instruments. Verify pinout and electrical specifications before substitution. Other manufacturers may offer similar octal D-type flip-flops with updated availability.
