SN74LV244ANS Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments SN74LV244ANS is an octal unidirectional bus buffer and line driver with 3-state outputs and active-low output enable control. It supports 50pF load capacitance and a 16mA sink current in a 20-pin SOP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LV244ANS 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
Key Features
- Octal 3-state outputs with active-low enable for efficient bus isolation and multiplexing in digital systems
- Low-voltage LV/LV-A family operation with 50pF load capacitance tolerance for driving long PCB traces
- Unidirectional buffering in compact 20-pin SOP package for address and data bus expansion
Applications
The SN74LV244ANS is widely used in microprocessor and microcontroller systems to buffer address, data, and control buses, preventing signal degradation over long PCB traces or when driving multiple loads. It is effective in memory expansion boards, FPGA I/O expansion, and industrial controllers where 3-state bus isolation is essential. The 20-pin SOP package and LV-family logic levels make it straightforward to integrate into 3.3V and 5V compatible board designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | LV/LV-A/LVX/H |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.016A |
| Number of Bits | 4 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.02mA |
| Prop. Delay@Nom-Sup | 18ns |
| Propagation Delay (tpd) | 18ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| 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 |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74LV244ANS:
Bus Driver, LV/LV-A/LVX/H Series, 8-Func, 4-Bit, True Output, CMOS, PDSO20
Bus Driver, LV/LV-A/LVX/H Series, 8-Func, 4-Bit, True Output, CMOS, PDSO20
Bus Driver, LV/LV-A/LVX/H Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20
Bus Driver, LV/LV-A/LVX/H Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20
Bus Driver, LV/LV-A/LVX/H Series, 8-Func, 4-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
What does the SN74LV244ANS do and how many channels does it have?
The SN74LV244ANS is an octal (8-channel) unidirectional bus buffer and line driver with 3-state outputs. It amplifies and isolates digital signals on address or data buses, supporting up to 16mA sink current per output and a 50pF load capacitance.
How is the output enable control configured on the SN74LV244ANS?
The SN74LV244ANS uses active-low output enable (OE) control, meaning the outputs are enabled when the OE pin is driven low and placed in a high-impedance 3-state condition when OE is driven high, enabling clean bus-sharing without signal contention.
What logic family does the SN74LV244ANS belong to?
The SN74LV244ANS belongs to the LV/LV-A/LVX/H logic family, which is designed for low-voltage operation and is compatible with both 3.3V and 5V supply systems, offering broad interoperability across different logic voltage domains.
What package does the SN74LV244ANS come in?
The SN74LV244ANS is housed in a 20-pin SOP (Small Outline Package), identified by JESD-30 code R-PDSO-G20. This compact surface-mount package is well suited for automated PCB assembly in high-density digital designs.
What are typical applications for the SN74LV244ANS?
Typical applications include microprocessor address bus buffering, memory board data line driving, FPGA I/O expansion, and industrial control systems where octal 3-state line driving with precise enable control is needed to manage multiple loads on a shared bus.
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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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