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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20TSSOP
- Series：74LCX
- Mfr：Toshiba Semiconductor and Storage
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：8.5ns @ 3.3V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：24mA, 24mA
- Voltage - Supply：1.65V ~ 3.6V
- Current - Quiescent (Iq)：10 µA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-TSSOP
- Package / Case：20-TSSOP (0.173", 4.40mm Width)
- Input Capacitance：7 pF
- Grade：-
- Qualification：-
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Overview
The TC74LCX574FT is an octal D-type flip-flop with 3-state outputs manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 1.65V to 3.6V, utilizing low-voltage CMOS technology for high-speed performance. The device features a maximum propagation delay of 8.5ns at 3.3V with a 50pF load and supports clock frequencies up to 150 MHz. It provides output drive currents of 24mA for both high and low states, with a static current of 10 µA. Packaged in a 20-TSSOP format, it functions across a temperature range of -40°C to 85°C.
Feature Summary
- Octal D-type flip-flop architecture with non-inverting 3-state outputs
- Low-voltage operation compatible with 1.65V to 3.6V power supplies
- High-speed data transfer capabilities with minimal propagation delay
- Robust output drive strength suitable for bus-oriented applications
Applications
- Parallel-to-serial data conversion circuits
- I/O buffering and latching mechanisms
- Memory address register storage
- General-purpose digital logic data storage
Procurement Notes
Verify component authenticity through authorized distributors as the part status is discontinued. Confirm package integrity and pin alignment against the 20-TSSOP specification. Ensure replacement components match the electrical characteristics and thermal ratings required for the specific application environment before integration.
Selection Notes
Select this component for designs requiring octal data storage with tri-state control in low-voltage environments. Consider the 1.65V minimum supply requirement when designing power rails. Evaluate the 24mA output current capability against load requirements to ensure signal integrity without exceeding device limits.
Part Context
This device belongs to the 74LCX series of low-voltage CMOS logic integrated circuits. It serves as a standard octal flip-flop solution within Toshiba's portfolio, offering compatibility with various digital systems while maintaining low power consumption. The series is designed to replace higher voltage legacy components in modern portable electronics.
Replacement Considerations
- 74LCX574FT (Toshiba)
- 74LVC574APW,118 (Nexperia)
FAQ
Is the 74LCX574FT currently in production?
No, the TC74LCX574FTELM variant is listed as obsolete and no longer manufactured.
What is the maximum operating frequency of this device?
The device supports clock frequencies up to 150 MHz under specified conditions.
