SN74HC574DWRG4In StockTexas Instruments
SN74HC574DWRG4 is an 8-bit D-type flip-flop with 3-state outputs from Texas Instruments, featuring HC logic family, 2V to 6V supply range, 24 MHz max frequency, and 50 pF load capacitance in a 20-pin SOIC package. From $0.14 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HC574DWRG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1426(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit D-type flip-flop with 3-state outputs, enabling easy bus-oriented data storage and transfer
- HC logic family with wide supply range of 2V to 6V and 24 MHz maximum operating frequency
- Enable-low control input for output enable/disable, supporting high-impedance bus sharing
- 20-pin SOIC package (SOIC-20 wide body) with RoHS-compliant Green/Pb-free options
- Broadside version of SN74HC374, pin-compatible for flexible PCB layout
Applications
The SN74HC574DWRG4 is widely used in digital systems requiring data latching and bus interfacing, such as microprocessor address/data bus buffering and register-based memory interfaces. Its 3-state outputs make it ideal for shared bus architectures in embedded systems, PLCs, and communication equipment. The device also suits data pipeline designs in FPGAs, DSPs, and industrial control systems where synchronous 8-bit data capture and low-power CMOS operation are required.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | BROADSIDE VERSION OF 374 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G20 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max Frequency@Nom-Sup | 24000000Hz |
| 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) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 330ns |
| Propagation Delay (tpd) | 330ns |
| 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 | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | POSITIVE EDGE |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| 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 SN74HC574DWRG4?
The SN74HC574DWRG4 operates at a maximum frequency of 24 MHz at nominal supply voltage. It supports a supply voltage range of 2V to 6V, and timing parameters vary with VCC — at 5V, propagation delay is typically around 7 ns, making it suitable for medium-speed digital logic applications.
What package does the SN74HC574DWRG4 use and what are its dimensions?
The SN74HC574DWRG4 comes in a 20-pin wide-body SOIC (Small Outline IC) package, designated SOIC-20 or R-PDSO-G20. This surface-mount package features a 1.27 mm pin pitch and is well-suited for high-density PCB designs. The 'DWR' suffix indicates the wide SOIC package on tape-and-reel packaging.
How does the SN74HC574DWRG4 differ from the SN74HC374?
The SN74HC574DWRG4 is the broadside (wide-body SOIC) version of the SN74HC374, offering the same 8-bit D-type flip-flop functionality with 3-state outputs. The key difference is pin layout: the 574 uses a broadside pinout where inputs and outputs are on opposite sides, simplifying PCB routing compared to the 374's staggered pinout.
Can the SN74HC574DWRG4 be used for 3.3V logic systems?
Yes, the SN74HC574DWRG4 supports a supply voltage range of 2V to 6V, making it compatible with both 3.3V and 5V logic systems. However, when interfacing between different voltage levels, ensure input logic thresholds are respected — at 3.3V VCC, VIH min is approximately 2.31V and VIL max is approximately 0.99V.
What does the 'G4' suffix mean in SN74HC574DWRG4?
The 'G4' suffix in SN74HC574DWRG4 indicates the device meets Texas Instruments' Green/Pb-free environmental compliance standards, meaning it is manufactured without lead (Pb) and complies with RoHS (Restriction of Hazardous Substances) regulations. This makes it suitable for use in consumer electronics and systems requiring environmental certifications.
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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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