SN74AS574N Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
Octal D-Type edge-triggered flip-flop with 3-state outputs in DIP-20 package. Features AS-family high-speed logic, 50pF load capacitance, active-low output enable, and unidirectional bus driving. From $1.32, in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74AS574N Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.3200(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74AS574N?
- Octal D-Type edge-triggered flip-flop with 3-state outputs for high-impedance bus isolation
- AS-family high-speed logic with propagation delays optimized for fast bus driving applications
- Active-low output enable (OE) for easy bus control and broadside version compatible with SN74AS374N
- DIP-20 package with 50pF load capacitance rating, suitable for standard through-hole PCB designs
- Unidirectional data flow with 8-bit parallel data storage and simultaneous clocked latching
What is SN74AS574N used for?
The SN74AS574N is widely used in data bus interfacing and buffering applications within microprocessor systems, where its 3-state outputs allow multiple devices to share a common bus without contention. It is commonly deployed in memory address latching, I/O port expansion, and register file implementations in industrial controllers and embedded systems. Its AS-family speed characteristics also make it suitable for high-performance data acquisition boards and backplane bus drivers requiring reliable edge-triggered synchronization.
What are the specifications of SN74AS574N?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | BROADSIDE VERSION OF 374 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | AS |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max Frequency@Nom-Sup | 90000000Hz |
| Max I(ol) | 0.048A |
| 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 | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 142mA |
| Prop. Delay@Nom-Sup | 9ns |
| Propagation Delay (tpd) | 9ns |
| Qualification Status | Not Qualified |
| Screening Level | MIL-STD-883 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Trigger Type | POSITIVE EDGE |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the SN74AS574N datasheet?
SN74AS574N Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74AS574N?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output drive capability of the SN74AS574N?
The SN74AS574N features 3-state outputs with a 50pF rated load capacitance. In the active state it can source and sink bus-level currents typical of AS-family logic, while asserting OE low enables all eight outputs simultaneously for efficient bus driving.
How does the SN74AS574N differ from the SN74AS374N?
The SN74AS574N is the broadside (DIP-20) pinout version of the SN74AS374N. Both devices are octal D-type edge-triggered flip-flops with 3-state outputs and active-low output enable, but the SN74AS574N uses a pinout optimized for easy PCB routing in through-hole designs.
What are the typical applications for the SN74AS574N?
Typical applications include microprocessor data bus buffering, memory address latching, I/O port expansion, and register file storage in embedded and industrial systems. Its high-speed AS-family logic and 3-state outputs make it ideal for backplane bus drivers and data acquisition systems.
What package and operating conditions does the SN74AS574N support?
The SN74AS574N comes in a 20-pin Dual-In-Line (DIP) through-hole package (JEDEC R-PDIP-T20) with Pb-free (RoHS-compliant) construction. It is rated for standard commercial and industrial temperature ranges and carries JESD-609 code e4 for moisture sensitivity compliance.
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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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| 306+ | $2.9205 | $893.67 |
| 370+ | $1.4520 | $537.24 |
| 690+ | $1.3200 | $910.80 |
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