SN74AHC245-Q1 Datasheet | Texas Instruments

SN74AHC245ĆQ1 OCTAL BUS TRANSCEIVER WITH 3ĆSTATE OUTPUTS SCLS527A - AUGUST 2003 - REVISED APRIL 2008 D Qualified for Automotive Applications D ESD Protection Exceeds 1000 V Per MIL-STD-883, Method 3015; Exceeds 100 V Using Machine Model (C = 200 p F, R = 0) D Operating Range 2-V to 5.5-V VCC description/ordering information The SN74AHC245 octal bus transceiver is designed for asynchronous two-way munication between data buses. The control-function implementation minimizes external timing requirements. 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 effectively are isolated. DW OR PW PACKAGE (TOP VIEW) DIR A1 A2 A3 A4 A5 A6 A7 A8 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 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{ PACKAGE‡ ORDERABLE PART NUMBER TOP-SIDE MARKING - 40°C to 125°C SOIC - DW Tape and reel TSSOP - PW Tape and reel SN74AHC245QDWRQ1 SN74AHC245QPWRQ1 AHC245Q1 AHC245Q1 † For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at http://.ti.. ‡ Package drawings, thermal data, and symbolization are available at http://.ti./packaging. FUNCTION TABLE (each transceiver) INPUTS OE DIR OPERATION L L B data to A...