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特性

• Controlled Baseline
  • One Assembly/Test Site, One Fabrication Site
• Enhanced Diminishing Manufacturing Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree⁽¹⁾
• Member of the Texas Instruments Widebus™ Family
• Max t_pd of 5.8 ns at 3.3 V
• ±24-mA Output Drive at 3.3 V
• Control Inputs V_IH/V_IL Levels Are Referenced to V_CCA Voltage
• Latch-Up Performance Exceeds 250 mA Per JESD 17

Widebus is a trademark of Texas Instruments.

⁽¹⁾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.

DESCRIPTION/ORDERING INFORMATION

This 16-bit (dual-octal) noninverting bus transceiver contains two separate supply rails. B port has V_CCB, which is set to operate at 3.3 V and 5 V. A port has V_CCA, which is set to operate at 2.5 V and 3.3 V. This allows for translation from a 2.5-V to a 3.3-V environment, and vice versa, or from a 3.3-V to a 5-V environment, and vice versa.

The SN74ALVC164245 is designed for asynchronous communication between data buses. The control circuitry (1DIR, 2DIR, 1OE, and 2OE) is powered by V_CCA.

To ensure the high-impedance state during power up or power down, the output-enable (OE) input should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.