SN74AHCT244PWR-P Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74AHCT244PWR-P is an octal non-inverting bus buffer and line driver IC from Texas Instruments in the AHCT logic family, operating from 2 V to 5.5 V VCC with CMOS-compatible inputs and TTL-compatible outputs in a 20-pin TSSOP package. It features three-state outputs for bus multiplexing and high-drive capability for bidirectional bus interface applications. Available from authorized distributors worldwide with competitive pricing and global shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74AHCT244PWR-P Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 2 V to 5.5 V VCC operating range enabling mixed-voltage system interfacing between 3.3 V CMOS and 5 V TTL logic levels
- Octal (8-bit) non-inverting three-state outputs for effective bus multiplexing and signal isolation in data bus architectures
- AHCT family combining CMOS input thresholds with TTL-compatible output levels for seamless level-shifting in mixed-logic designs
- High output drive strength minimizing signal degradation when driving long PCB traces or multiple TTL loads on shared bus lines
Applications
The SN74AHCT244PWR-P is widely used as a bus driver and buffer in microprocessor address and data bus isolation, memory interface circuits, and FPGA I/O expansion where signals must be buffered or level-shifted between 3.3 V CMOS and 5 V TTL domains. It is also deployed in industrial control systems, communication equipment, and embedded computing platforms requiring high-fanout drive capability from logic outputs. The three-state control allows multiple devices to share a common bus without contention.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74AHCT244PWR-P:
Bus Driver, AHCT/VHCT/VT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
What is the operating voltage range of the SN74AHCT244PWR-P?
The SN74AHCT244PWR-P operates from 2 V to 5.5 V VCC, making it compatible with 3.3 V CMOS and 5 V TTL system voltage rails. This wide range allows it to interface signals between different logic families in mixed-voltage digital designs without level-shifting discrete components.
What logic family is the SN74AHCT244PWR-P and what are its input/output characteristics?
The SN74AHCT244PWR-P belongs to the Advanced High-speed CMOS (AHCT) family. It accepts CMOS-compatible input levels while delivering TTL-compatible output voltage levels, enabling direct interfacing between 3.3 V CMOS logic and 5 V TTL systems. The combination simplifies level translation in legacy and modern mixed-logic designs.
Does the SN74AHCT244PWR-P have three-state outputs and how are they controlled?
Yes, the SN74AHCT244PWR-P features three-state (tristate) outputs controlled by dedicated output enable pins. When disabled, the outputs enter a high-impedance state, allowing the device to release the bus. This feature is essential for bus multiplexing where multiple drivers share a common data or address bus.
What package does the SN74AHCT244PWR-P come in and how many bits does it buffer?
The SN74AHCT244PWR-P is an octal (8-bit) buffer housed in a 20-pin TSSOP surface-mount package. The compact TSSOP footprint makes it suitable for high-density PCB designs, and the 8-bit width aligns with standard byte-wide data bus architectures used in microcontrollers, FPGAs, and memory interfaces.
What are typical applications for the SN74AHCT244PWR-P in digital system design?
The SN74AHCT244PWR-P is commonly used for microprocessor and microcontroller bus buffering, FPGA I/O expansion, address latch driving, and memory bus isolation. Its ability to drive high-capacitance bus loads and its three-state control make it a standard choice for bus arbitration, card-edge connectors, and backplane driver circuits in embedded and industrial systems.
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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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