Texas Instruments SN74ABT540NSR

Buffer/Line Driver 8-CH Inverting 3-ST BiCMOS 20-Pin SOP T/R

24mA 8 8 1 8 4.5V 5.5V 64mA Buffer,Inverting 32mA SO-20 , 12.6mm*5.3mm*1.95mm

Buffer Logic IC; Logic Family:ABT; Supply Voltage Min:5.5V; Supply Voltage Max:4.5V; Package/Case:20-SOP; No. of Pins:20; Operating Temperature Range:-40°C to +85°C; Input Type:TTL; Leaded Process Compatible:Yes ;RoHS Compliant: Yes

The 'ABT540 octal buffers and line drivers are ideal for driving bus lines or buffer memory address registers. The devices feature inputs and outputs on opposite sides of the package that facilitate printed circuit board layout. The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable ( or ) input is high, all corresponding outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, 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 SN54ABT540 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT540 is characterized for operation from -40°C to 85°C.