SN74ALVCH244NSRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74ALVCH244NSRG4 is an octal buffer and line driver from Texas Instruments in the ALVCH/VCX logic family with active-low output enable and unidirectional operation. It provides 24mA output sink current with 50pF load capacitance in a 20-pin SOIC package for high-speed bus driving. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74ALVCH244NSRG4 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 SN74ALVCH244NSRG4?
- ALVCH/VCX family supporting mixed-voltage interfaces with inputs tolerating up to 3.6V while operating from 1.65V to 3.6V supply for modern low-voltage systems
- Octal unidirectional buffer with active-low enable allowing 8-bit data bus driving with tri-state output control
- 24mA output sink current enabling direct drive of bus loads and multiple downstream CMOS or TTL-compatible inputs
- High-speed operation with propagation delays below 4ns at 3.3V making it suitable for fast processor address and data bus applications
What is SN74ALVCH244NSRG4 used for?
The SN74ALVCH244NSRG4 is used as a unidirectional address and data bus buffer in microprocessor, FPGA, and DSP systems where the output current drive capability needs to be extended to drive multiple bus loads or long PCB traces. It is well suited for memory interface buffering, I/O port expansion, and level translation in mixed-voltage systems combining 3.3V logic with 1.8V or 2.5V subsystems. The device also serves in industrial and communication equipment where reliable bus driving with tri-state control and low propagation delay are required.
What are the specifications of SN74ALVCH244NSRG4?
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | ALVC/VCX/A |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.024A |
| 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 Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.01mA |
| Prop. Delay@Nom-Sup | 3.1ns |
| Propagation Delay (tpd) | 3.1ns |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100; TS 16949 |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| 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 |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74ALVCH244NSRG4 datasheet?
SN74ALVCH244NSRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74ALVCH244NSRG4?
Compatible alternatives and drop-in replacements for SN74ALVCH244NSRG4:
Bus Driver, ALVC/VCX/A Series, 8-Func, 4-Bit, True Output, CMOS, PDSO20
Bus Driver, ALVC/VCX/A Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20
Bus Driver, ALVC/VCX/A Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
What is the output enable polarity of the SN74ALVCH244NSRG4?
The SN74ALVCH244NSRG4 uses active-low output enable control, meaning the outputs are enabled when the OE pin is driven low and placed in a high-impedance tri-state condition when OE is high, allowing multiple devices to share a common bus without contention.
What logic family does the SN74ALVCH244NSRG4 belong to?
The SN74ALVCH244NSRG4 belongs to the ALVCH/VCX/A logic family, which supports low-voltage operation from 1.65V to 3.6V while accepting inputs up to 3.6V, enabling voltage translation between 1.8V, 2.5V, and 3.3V logic domains in mixed-supply systems.
How many bits does the SN74ALVCH244NSRG4 buffer?
The SN74ALVCH244NSRG4 provides 8-bit (octal) unidirectional buffering, driving all 8 outputs simultaneously in a single direction, which maps directly to one byte-wide data or address bus in microprocessor and FPGA systems.
What package does the SN74ALVCH244NSRG4 use?
The SN74ALVCH244NSRG4 is available in a 20-pin SOIC (Small Outline IC) package, providing an industry-standard surface-mount footprint that is compatible with automated PCB assembly and widely available PCB component libraries for digital logic design.
What is the maximum output sink current of the SN74ALVCH244NSRG4?
The SN74ALVCH244NSRG4 provides a maximum output sink current of 24mA per output, sufficient to drive standard CMOS and TTL bus loads including multiple device inputs and PCB trace capacitances in high-speed digital systems operating at 3.3V.
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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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