SN74LVTH573DBRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74LVTH573DBRG4 is an octal D-type transparent latch with 3-state outputs, 2.7 V to 3.6 V supply, and 64 mA output drive in a 20-pin SSOP package. Supports 50 pF load capacitance with active-low output enable for unidirectional bus driving. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LVTH573DBRG4 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
What are the key features of SN74LVTH573DBRG4?
- Octal 8-bit transparent D-type latch with 3-state outputs enables efficient data bus isolation and latching in 3.3 V digital systems
- 2.7 V to 3.6 V LVT family supply range with 64 mA output sink current supports robust bus driving at 50 pF load capacitance
- 20-pin SSOP (R-PDSO-G20) small-outline package with active-low output enable simplifies layout in space-constrained data bus applications
What is SN74LVTH573DBRG4 used for?
SN74LVTH573DBRG4 is used in 3.3 V digital systems for address and data bus latching between microprocessors, memory controllers, and peripheral ICs, where transparent latch mode allows real-time pass-through before data is captured on the latch enable. Its 3-state outputs with active-low enable make it suitable for shared bus architectures where multiple devices must be isolated from the bus to prevent contention. The LVT family compatibility and SSOP-20 package suit it for embedded processor boards, FPGA interface circuits, and industrial control systems requiring octal bus driver functionality.
What are the specifications of SN74LVTH573DBRG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | LVT |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.064A |
| 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 | SSOP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 5mA |
| Prop. Delay@Nom-Sup | 3.9ns |
| Propagation Delay (tpd) | 4.9ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | BICMOS |
| 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 | HIGH LEVEL |
| 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 |
Where can I find the SN74LVTH573DBRG4 datasheet?
SN74LVTH573DBRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74LVTH573DBRG4?
Compatible alternatives and drop-in replacements for SN74LVTH573DBRG4:
Frequently Asked Questions
How does SN74LVTH573DBRG4 maintain bus isolation when multiple devices share a data bus?
SN74LVTH573DBRG4 uses active-low 3-state output enable control to disconnect all 8 outputs from the bus simultaneously, placing them in a high-impedance state with 64 mA drive capability when active. This allows multiple bus latch devices to share a common 8-bit data bus without contention, with each device enabled only during its designated bus access window, which is critical in multiplexed address-data bus architectures used in microprocessor memory interfaces.
What supply voltage does SN74LVTH573DBRG4 require and how does it fit into a 3.3 V system design?
SN74LVTH573DBRG4 operates from a 2.7 V to 3.6 V supply voltage, making it natively compatible with 3.3 V digital logic systems powered by standard LDO regulators. The LVT family logic thresholds are designed to accept TTL-level inputs from 5 V legacy devices as well as LVCMOS outputs from 3.3 V devices, enabling mixed-voltage bus interfacing in designs that combine older 5 V peripherals with newer 3.3 V FPGAs or microcontrollers.
What is the maximum load capacitance SN74LVTH573DBRG4 supports and how does it affect bus timing margins?
SN74LVTH573DBRG4 is rated for 50 pF load capacitance per output, which corresponds to moderate PCB trace lengths and a small number of device inputs on each bus line in typical board designs. Exceeding 50 pF increases propagation delay beyond the specified values, so designers connecting more than 3-4 device inputs or using traces longer than approximately 5 cm should add series termination resistors of 22 Ω to 33 Ω to maintain signal integrity and meet setup-and-hold timing requirements.
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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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