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SN74ACT244DBR

Octal buffer/line driver, 3-state, TTL-level, SO-20

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Manufacturer Part：

SN74ACT244DBR

Package：

SSOP-20

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Description

Product Overview

The SN74ACT244DBR from TI is an octal buffer/line driver with 3-state outputs in the ACT family (TTL inputs, CMOS outputs, ±24 mA drive). Two independent 4-bit sections with separate enables provide bus buffering and driving for high-capacitance loads.

Key Specifications

Function Octal buffer/line driver with 3-state
Supply Voltage 4.5V to 5.5V
Propagation Delay 8 ns at 5V
Output Drive ±24 mA (ACT)
Input Logic TTL compatible
Package SSOP-20 (5.3×7.2mm)

Working Principle

Two 4-bit sections each have an active-low output enable (1OE, 2OE). When enabled, outputs follow inputs with 8 ns propagation delay. When disabled, outputs are high-impedance for bus sharing. ACT family combines TTL-compatible input thresholds with high-drive CMOS outputs for robust 5V bus interfacing.

Applications

  • 5V bus buffering
  • Address/data driver
  • Memory interface
  • Capacitive load driving

The SN74ACT244DBR from TI is an octal buffer/line driver with 3-state outputs in the ACT family (TTL inputs, CMOS outputs, ±24 mA drive). Two independent 4-bit sections with separate enables provide bus buffering and driving for high-capacitance loads.

Two 4-bit sections each have an active-low output enable (1OE, 2OE). When enabled, outputs follow inputs with 8 ns propagation delay. When disabled, outputs are high-impedance for bus sharing. ACT family combines TTL-compatible input thresholds with high-drive CMOS outputs for robust 5V bus interfacing.

Pin Name Description
1 1OE Section 1 output enable
2-5,16-19 I/O Inputs/outputs
10 GND Ground
20 VCC 5V supply
  • 5V bus buffering
  • Address/data driver
  • Memory interface
  • Capacitive load driving
Model Manufacturer Key Difference
74HC244 Nexperia Lower drive (±5mA)
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Shipping & Payment

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5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
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Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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