CD74HC574M Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
High Speed CMOS Logic Octal Positive-Edge-Triggered D-Type Flip-Flops with 3-State Outputs, featuring 20 MHz max frequency, 50 pF load capacitance, and enable-low control. From $0.198, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC574M Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1980(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal D-type flip-flops with positive-edge triggering for reliable data latching
- 3-state outputs enable direct bus driving and multiplexed data lines
- High-speed CMOS HC family with 20 MHz max operating frequency
- Enable-low control pin for easy output tri-stating and bus sharing
- Wide supply voltage range compatible with TTL and CMOS logic levels
Applications
The CD74HC574M is widely used in microprocessor and microcontroller bus interfaces for data buffering and pipeline registers. Its 3-state outputs make it ideal for bidirectional data bus expansion, memory address latching, and I/O port isolation in embedded systems. It also finds application in industrial control boards, FPGA peripheral circuits, and communication equipment where reliable edge-triggered data storage and bus-drive capability are required.
Specifications
| YTEOL | 0 |
| Additional Feature | BROADSIDE VERSION OF 374 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HC |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.0078A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 50ns |
| Propagation Delay (tpd) | 250ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC574M:
Frequently Asked Questions
What is the maximum operating frequency of the CD74HC574M?
The CD74HC574M supports a maximum operating frequency of 20 MHz (20,000,000 Hz) at nominal supply voltage with a 50 pF load capacitance, making it suitable for high-speed data bus applications in embedded and digital systems.
What does the 3-state output of CD74HC574M mean and when is it used?
The 3-state (tri-state) outputs allow the CD74HC574M to disconnect its outputs from the bus by entering a high-impedance state when the enable pin (active low) is deasserted. This is essential in bus-sharing designs where multiple devices drive a common data line, preventing bus contention and enabling multiplexed communication.
What package does the CD74HC574M come in and what are its key dimensions?
The CD74HC574M is housed in a 20-pin Small Outline Package (SOIC, JESD-30 code R-PDSO-G20), which offers a compact footprint ideal for PCB space-constrained designs. It complies with JESD-609 e4 moisture sensitivity standards, ensuring reliability in surface-mount assembly processes.
Is the CD74HC574M compatible with TTL logic levels?
Yes, the CD74HC574M belongs to the HC (High-speed CMOS) family, which is designed to interface with both TTL and CMOS logic levels. Its input thresholds and output drive strengths are compatible with standard TTL devices, making it easy to integrate into mixed-logic systems.
What are typical applications for the CD74HC574M?
Typical applications include microprocessor data bus buffering, address latching, I/O port expansion, pipeline registers in digital signal processing, FPGA peripheral interfacing, and industrial control systems where octal edge-triggered flip-flops with 3-state bus drive are needed.
Related Guides
SN74LVC14APWR Hex Schmitt-Trigger Inverter: Application Note and Design Guide
Complete design guide for the SN74LVC14APWR hex Schmitt-trigger inverter: thresholds, decoupling, oscillator design, package selection, and common pitfalls.
May 21, 2026
TPS62841DGRR Buck Converter Selection Guide: Ultra-Low 60 nA IQ for Battery-Powered IoT
How to choose the right TPS62841 variant for IoT, wearables, and wireless sensors: quiescent current, voltage range, package, and application examples.
May 21, 2026
TPS54160DGQR Selection Guide: How to Choose a 60V Step-Down Buck Converter
Complete selection guide for the TPS54160DGQR 60V/1.5A step-down converter. Compare specs, alternatives, and sourcing options for industrial and automotive designs.
May 20, 2026
LMV932MM Dual Low-Voltage CMOS Op-Amp: Application Design Guide
Complete application design guide for the LMV932MM dual rail-to-rail CMOS op-amp: supply decoupling, RRIO design rules, stability, and recommended circuits for 1.8V–5.5V battery-powered systems.
May 20, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2970 | $0.30 |
| 18+ | $0.2475 | $4.46 |
| 41+ | $0.1980 | $8.12 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”