●The "ABTH25245 are 25- octal bus transceivers designed for asynchronous communication between data buses. They improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented transceivers.
●These devices allow noninverted data transmission 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 disable the device so that both buses are effectively isolated. When OE\ is low, the device is active.
●These transceivers are capable of sinking 188 mA of IOL current, which facilitates switching 25- transmission lines on the incident wave. The distributed VCC and GND pins minimize switching noise for more-reliable system operation.
●Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
●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 SN54ABTH25245 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABTH25245 is characterized for operation from -40°C to 85°C.
● State-of-the-Art
●_EPIC-_
●II
●_B_
●TM BiCMOS Design Significantly Reduces Power Dissipation
● ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
● Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
● Typical V
●OLP
● (Output Ground Bounce) < 1 V at V
●CC
● = 5 V, T
●A
● = 25°C
● High-Impedance State During Power Up and Power Down
● Designed to Facilitate Incident-Wave Switching for Line Impedances of 25 or Greater
● Distributed V
●CC
● and GND Pin Configuration Minimizes High-Speed Switching Noise
● Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
● Package Options Include Plastic Small-Outline (DW) Package, Ceramic Chip Carriers (FK), and Standard Plastic (NT) and Ceramic (JT) DIPs
●EPIC-IIB is a trademark of Texas Instruments Incorporated.
