SN74AHC245Q

SN74AHC245Q OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SGDS018 – FEBRUARY 2002 D Q Devices Meet Automotive Performance Requirements D Customer-Specific Configuration Control Can Be Supported Along With Major-Change Approval D Operating Range 2-V to 5.5-V VCC D Latch-Up Performance Exceeds 250 mA Per JESD 17 description The SN74AHC245Q octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. DW OR PW PACKAGE (TOP VIEW) DIR A1 A2 A3 A4 A5 A6 A7 A8 GND 1 2 3 4 5 6 7 8 9 10 20 VCC 19 OE 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8 This device allows 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 be used to disable the device so that the buses are effectively isolated. To ensure the high-impedance state during power up or power down, 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. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING –40°C to 125°C SOIC – DW TSSOP – PW Tape and reel Tape and reel SN74AHC245QDWR SN74AHC245QPWR AHC245Q HA245Q † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (each t...