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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20SOIC
- Series：74HCT
- Mfr：Texas Instruments
- 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：60 MHz
- Max Propagation Delay @ V, Max CL：33ns @ 4.5V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：6mA, 6mA
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Iq)：8 µA
- Operating Temperature：-55°C ~ 125°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 CD74HCT574M is an octal edge-triggered D-type flip-flop manufactured by Texas Instruments. It features non-inverting outputs with three-state control, designed for bus-oriented applications. The device operates within a supply voltage range of 2V to 6V and supports through-hole mounting in a 20-pin PDIP package. Key electrical parameters include a maximum clock frequency of 28MHz, propagation delay of 22ns at 5V, and output drive currents of ±7.8mA. It functions within a temperature range of -40°C to +85°C.
Feature Summary
- Octal edge-triggered D-type flip-flop architecture
- Three-state non-inverting outputs for bus driving
- CMOS input compatibility with TTL voltage levels
Applications
- Buffer registers
- I/O ports
- Bidirectional bus drivers
- Working registers
Procurement Notes
Verify the specific suffix (e.g., N, M, PW) against the required package type, as the base model number may correspond to different physical footprints such as PDIP or SOIC. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability varies by region and manufacturing batch. Ensure the selected variant matches the intended PCB layout and thermal requirements.
Selection Notes
Select this component when designing systems requiring parallel data storage with high-speed bus interfacing capabilities. The HC series offers low power consumption compared to older logic families while maintaining fast switching speeds. Consider the operating voltage range and output drive strength requirements to ensure compatibility with downstream loads and system power constraints.
Part Context
This part belongs to the SN74HC574 family of octal D-type flip-flops. It is functionally similar to other variants like the SN74HC574N but distinguished by its specific package configuration. The HCT designation indicates High-Speed CMOS technology with TTL-compatible inputs, making it suitable for mixed-voltage digital logic environments.
Replacement Considerations
- SN74HC574N
- CD74HC574M96
FAQ
What is the input voltage compatibility of the CD74HCT574M?
The device features CMOS inputs that are compatible with TTL voltage levels.
Does the CD74HCT574M have inverting or non-inverting outputs?
The CD74HCT574M has non-inverting outputs.
