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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20SSOP
- Series：74LVT
- Mfr：NXP USA Inc.
- Package：Tube
- Function：Standard
- Type：D-Type
- Output Type：Tri-State, Non-Inverted
- Number of Elements：1
- Number of Bits per Element：8
- Clock Frequency：150 MHz
- Max Propagation Delay @ V, Max CL：5.9ns @ 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-SSOP
- Package / Case：20-SSOP (0.209", 5.30mm Width)
- Input Capacitance：4 pF
- Grade：-
- Qualification：-
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Overview
The NXP USA Inc. 74LVT574DB,112 is an octal D-type flip-flop with 3-state outputs, designed for bus-oriented applications. It features eight flip-flops with positive-edge triggering and operates within a supply voltage range of 2.0 V to 5.5 V. The device utilizes a 20-SSOP package and supports high-speed data latching with propagation delays typical for the LVT logic family. It is currently marked as obsolete by the manufacturer.
Feature Summary
- Octal D-type configuration with positive-edge clock triggering
- Three-state outputs suitable for bus-oriented systems
- Operates across standard 2.0 V to 5.5 V supply voltages
Applications
- Bus-oriented memory mapping
- Data register storage
- I/O buffering for microprocessor systems
Procurement Notes
This component is officially classified as obsolete and no longer manufactured by NXP USA Inc. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors or secondary market suppliers. Ensure that any acquired units are tested for functionality, as long-term storage may affect performance characteristics. Cross-reference with valid replacement part numbers before finalizing acquisition plans.
Selection Notes
Engineers selecting this component must account for its obsolete status in new designs. While suitable for legacy system maintenance, it lacks current manufacturing support. Consider evaluating alternative components from the same logic family that offer active production status and extended availability. Verify pin compatibility and electrical specifications against existing circuit requirements before substitution.
Part Context
The 74LV series represents low-voltage CMOS logic devices widely used in digital electronics. The 74LVT variant specifically targets applications requiring transition between different voltage domains while maintaining high-speed performance. This particular model provides octal storage capabilities essential for managing multiple data lines simultaneously in complex digital architectures.
Replacement Considerations
Public confirmed substitute part numbers include MC74LVX574DTR2G and SN74LV574ADBR. These alternatives offer similar functional characteristics and pin configurations. Evaluate these options for availability and compliance with current design standards when replacing the obsolete component.
