SN74ABTR2245数据手册集成电路（IC）的缓冲器驱动器接收器收发器规格书PDF

描述 Description

These octal transceivers and line drivers are designed for asynchronous communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE\\) input can be used to disable the device so the buses are effectively isolated. Both the A-port and B-port outputs, which are designed to sink up to 12 mA, include equivalent 25- series resistors to reduce overshoot and undershoot. When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 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. The SN54ABTR2245 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABTR2245 is characterized for operation from -40°C to 85°C.

特性 Features

• Outputs Have Equivalent 25- Series Resistors, So No External Resistors Are Required
• State-of-the-ArtEPIC-II BTM BiCMOS Design Significantly Reduces Power Dissipation
• High-Impedance State During Power Up and Power Down
• Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
• ESD Protection Exceeds 2000 V Per MIL-STD-833, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
• Typical VOLP (Output Ground Bounce) CC = 5 V, TA = 25°C
• Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), Thin Shrink Small-Outline (PW), and Thin Very Small-Outline (DGV) Packages, Ceramic Chip Carriers (FK), and Plastic (N) and Ceramic (J) DIPs EPIC-IIB is a trademark of Texas Instruments Incorporated.