SN74LVTH162244-EP中文资料具有总线保持、TTL 兼容型 CMOS 输入和三态电路的增强型产品 16 通道、2.7V 至 3.6V 缓冲器数据手册TI规格书

描述 Description

The SN74LVTH162244 is a 16-bit buffer and line driver designed for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment. This device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. This device provides true outputs and symmetrical active-low output-enable (OE)\\ inputs. The outputs, which are designed to source or sink up to 12 mA, include equivalent 22- series resistors to reduce overshoot and undershoot. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.When VCC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, 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 hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.

特性 Features

• Controlled Baseline
• Enhanced Diminishing Manufacturing Sources (DMS) Support
• Qualification Pedigree
• Output Ports Have Equivalent 22- Series Resistors, So No External Resistors Are Required
• Supports Unregulated Battery Operation Down To 2.7 V
• Ioff and Power-Up 3-State Support Hot Insertion
• Distributed VCC and GND Pins Minimize High-Speed Switching Noise
• Latch-Up Performance Exceeds 500 mA Per JESD 17
• 2000-V Human-Body Model (A114-A)
• 200-V Machine Model (A115-A)

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. Widebus is a trademark of Texas Instruments.