CD74HC574MG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
CD74HC574MG4 is an octal D-type flip-flop with 3-state outputs and active-low enable by Texas Instruments in an HC/UH CMOS family. Key specs: 20 MHz max clock frequency, 50 pF load capacitance, 20-pin SOIC package. From stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC574MG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal (8-bit) D-type flip-flop with 3-state outputs enabling direct connection to shared buses without bus contention
- Active-low output enable (OE) control allowing the device to be tri-stated and share a common data bus with multiple devices
- High-speed HC CMOS logic operating up to 20 MHz clock frequency with a 50 pF load for fast data latching
- RoHS-compliant Pb-free design (JESD-609 e4) in a 20-pin SOIC package for compact surface-mount PCB integration
Applications
The CD74HC574MG4 is used in microprocessor and FPGA data bus interfaces, I/O port latching, and address/data bus buffering in embedded systems. Its 3-state output capability allows multiple devices to share a common bus, making it essential in memory interface circuits and multi-master bus architectures. The high-speed HC CMOS logic family ensures reliable operation in industrial controllers, communication equipment, and digital signal processing hardware.
Specifications
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HC/UH |
| 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) | 0.006A |
| 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 |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 250ns |
| Propagation Delay (tpd) | 250ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| 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 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC574MG4:
Frequently Asked Questions
What is the maximum clock frequency of the CD74HC574MG4?
The CD74HC574MG4 operates at a maximum clock frequency of 20 MHz (20,000,000 Hz) with a 50 pF load capacitance, making it suitable for high-speed data bus latching in digital systems.
What does the 3-state output feature of the CD74HC574MG4 do?
The 3-state outputs allow the CD74HC574MG4 to be tri-stated (high impedance) via the active-low output enable pin, enabling multiple devices to share a common data bus without signal conflicts.
What package does the CD74HC574MG4 use?
The CD74HC574MG4 is available in a 20-pin SOIC (Small Outline Integrated Circuit) package, JEDEC code R-PDSO-G20, which is a standard surface-mount package suitable for compact PCB designs.
Is the CD74HC574MG4 RoHS compliant?
Yes, the CD74HC574MG4 carries JESD-609 code e4 indicating it is Pb-free (lead-free) and fully RoHS compliant, meeting environmental requirements for modern electronic manufacturing.
What are typical applications for the CD74HC574MG4?
Typical applications include data bus buffering, I/O port expansion, address latching, and pipeline registers in microprocessor systems, FPGA interfaces, memory modules, and industrial digital control boards.
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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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