SN74HCT574DWRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74HCT574DWRE4 is an octal D-type flip-flop with 3-state outputs from Texas Instruments, designed for high-speed bus interface and data storage applications. It features positive-edge triggering, active-low output enable, operates at up to 27 MHz, and is available in a 20-pin SOIC package.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HCT574DWRE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal D-type flip-flop with positive-edge-triggered clocking for synchronous data storage
- 3-state outputs with active-low output enable for direct bus interface connection
- HCT logic family compatible with 5 V TTL input levels and CMOS output drive
- Operating frequency up to 27 MHz supporting high-speed digital interface applications
- 6 mA output low current drive for reliable bus loading in large systems
Applications
The SN74HCT574DWRE4 is commonly used as a data buffer and register in microprocessor bus interfaces, memory address latching, and peripheral data storage applications. It is well-suited for use in industrial control systems, data acquisition hardware, and communication equipment where synchronous 8-bit data capture is required.
Specifications
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HCT |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max Frequency@Nom-Sup | 27000000Hz |
| Max I(ol) | 0.006A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| 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 | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 45ns |
| Propagation Delay (tpd) | 45ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| 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 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum operating frequency of the SN74HCT574DWRE4?
The SN74HCT574DWRE4 supports a maximum clock frequency of 27 MHz, enabling it to handle high-speed synchronous data transfer and storage requirements in modern digital systems.
How is the SN74HCT574DWRE4 output enabled or disabled?
The SN74HCT574DWRE4 features an active-low output enable (OE) pin; when OE is held low the outputs are active, and when OE is high the outputs enter a high-impedance 3-state condition for bus sharing.
Is the SN74HCT574DWRE4 compatible with TTL logic levels?
Yes, the SN74HCT574DWRE4 belongs to the HCT family, which accepts TTL-compatible input voltage thresholds (VIL max 0.8 V, VIH min 2 V) while providing CMOS-level output voltage swings.
What package is the SN74HCT574DWRE4 available in?
The SN74HCT574DWRE4 is available in a 20-pin SOIC (Small Outline Integrated Circuit) package, suitable for automated PCB assembly and compatible with standard surface-mount soldering processes.
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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.
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