SN74AHC573DW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74AHC573DW is an octal transparent D-type latch with 3-state outputs, featuring 8-bit bus driving capability and AHC logic family. Supports 50 pF load capacitance and 8 mA output current. From $0.5821, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74AHC573DW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5821(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74AHC573DW?
- 8-bit octal transparent D-type latch with 3-state outputs for efficient bus driving
- AHC/VHC logic family with low-power CMOS technology and high-speed performance
- Active-low enable control for flexible latch operation and output enable/disable
- 20-pin SOIC (R-PDSO-G20) small outline package for space-efficient PCB designs
- Wide operating voltage range with 50 pF load capacitance support and 8 mA output drive
What is SN74AHC573DW used for?
The SN74AHC573DW is widely used in microprocessor and microcontroller address/data bus buffering, memory interface designs, and I/O port expansion circuits. Its 3-state outputs make it ideal for shared bus architectures in embedded systems, industrial controllers, and communication equipment. The device also finds application in data registers, pipeline registers, and address latching in CPLDs, FPGAs, and DSP-based systems.
What are the specifications of SN74AHC573DW?
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | AHC/VHC/H/U/V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.008A |
| 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 |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 12ns |
| Propagation Delay (tpd) | 19ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| 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 |
Where can I find the SN74AHC573DW datasheet?
SN74AHC573DW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74AHC573DW?
Compatible alternatives and drop-in replacements for SN74AHC573DW:
Bus Driver, AHC/VHC/H/U/V Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Driver, AHC/VHC/H/U/V Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Driver, AHC/VHC/H/U/V Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Driver, AHC/VHC/H/U/V Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Driver, AHC/VHC/H/U/V Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Driver, AHC/VHC/H/U/V Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Driver, AHC/VHC/H/U/V Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Driver, AHC/VHC/H/U/V Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
What is the SN74AHC573DW and what are its key electrical specifications?
The SN74AHC573DW is an 8-bit octal transparent D-type latch with 3-state outputs from Texas Instruments, part of the AHC logic family. Key specs include a maximum output low current (I(ol)) of 8 mA, 50 pF load capacitance, unidirectional data flow, and active-low enable control. It comes in a 20-pin SOIC package (R-PDSO-G20) and is RoHS compliant (JESD-609 e4).
What are the typical applications for the SN74AHC573DW?
The SN74AHC573DW is commonly used in microprocessor bus buffering, address latching for memory interfaces, I/O port expansion, and data pipeline registers. Its 3-state outputs allow multiple devices to share a common bus without contention, making it suitable for embedded systems, industrial controllers, FPGA/CPLD interface circuits, and communication equipment requiring reliable 8-bit data latching.
What package does the SN74AHC573DW come in and are there alternative package options?
The SN74AHC573DW is packaged in a 20-pin wide-body SOIC (Small Outline IC) package, designated R-PDSO-G20. Texas Instruments also offers the SN74AHC573 family in other package options such as TSSOP (SN74AHC573PW) and PDIP (SN74AHC573N), providing flexibility for different PCB layout requirements and assembly processes.
How does the enable control work on the SN74AHC573DW?
The SN74AHC573DW uses an active-low output enable (OE) and a latch enable (LE) control. When LE is high, the outputs follow the D inputs transparently. When LE goes low, the last data state is latched and held. The active-low OE pin places all 8 outputs in a high-impedance (3-state) condition when asserted low, allowing the device to be disconnected from the bus without affecting stored latch data.
Related Guides
CDSOT23-SM712 RS-485 Interface Protection Design Guide
Design robust RS-485 protection with CDSOT23-SM712 using correct clamping, placement, grounding, termination, and surge coordination.
Jul 17, 2026
CR0805-FX-10R0ELF 10 Ohm 0805 Resistor Design Guide
Design CR0805-FX-10R0ELF into 0805 circuits with practical power, pulse, thermal, layout, tolerance, and sourcing checks.
Jul 17, 2026
How to Choose Würth Elektronik 150141-Series SMD Indicator LEDs
Choose 150141RS73100 and related Würth 150141 LEDs by color, brightness, 3528 package fit, drive margin, and procurement controls.
Jul 15, 2026
Molex 53398-0371 Selection Guide: Choosing a 3-Circuit Wire-to-Board Header
Choose Molex 53398-0371 by circuit count, mating system, derating, PCB geometry, assembly needs, and exact-suffix sourcing.
Jul 15, 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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.1000 | $1.10 |
| 1000+ | $0.7793 | $779.30 |
| 10000+ | $0.6948 | $6948.00 |
| 100000+ | $0.5821 | $58210.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit