SN74AHC244-EP数据手册TI中文资料规格书

描述 Description

This octal buffer/driver is designed specifically to improve the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.

The SN74AHC244 is organized as two 4-bit buffers/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.

特性 Features

• Controlled Baseline
• One Assembly/Test Site, One Fabrication Site

• Extended Temperature Performance of –55°C to 125°C
• Enhanced Diminishing Manufacturing Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree
• EPIC™ (Enhanced-Performance Implanted CMOS) Process
• Operating Range 2-V to 5.5-V VCC
• Latch-Up Performance Exceeds 250 mA Per JESD 17
• ESD Protection Exceeds 1500 V Per MIL-STD-833, Method 3015; Exceeds 150 V Using Machine Model (C = 200 pF, R = 0)
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. EPIC is a trademark of Texas Instruments.