SN74LV244A-EP中文资料具有三态输出的增强型产品 8 通道、2V 至 5.5V 缓冲器数据手册TI规格书

描述 Description

This octal buffer/line driver is designed for 2-V to 5.5-V VCC operation. The SN74LV244A-EP is designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.The device is organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.

特性 Features

• Controlled Baseline
• Extended Temperature Performance of -55°C to 125°C
• Enhanced Product-Change Notification
• 2-V to 5.5-V VCC Operation
• Typical VOLP (Output Ground Bounce) CC = 3.3 V, TA = 25°C
• Supports Mixed-Mode Voltage Operation on All Ports
• Latch-Up Performance Exceeds 250 mA Per JESD 17
• 2000-V Human-Body Model (A114-A)
• 1000-V Charged-Device Model (C101)


Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.