74LCXZ2245 ,Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26-Ohm Series Resistors in B Outputsapplications.resistor is determined by the current-sourcing capability of the driver. Ordering Code ..
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74LCXZ2245
Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26-Ohm Series Resistors in B Outputs
74LCXZ2245 Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26Ω Series Resistors in B Outputs October 2000 Revised October 2000 74LCXZ2245 Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26Ω Series Resistors in B Outputs General Description Features The LCXZ2245 contains eight non-inverting bidirectional5V tolerant inputs and outputs buffers with 3-STATE outputs and is intended for bus ori-2.7V–3.6V V specifications provided CC ented applications. The device is designed for low voltage 7.0 ns t max (V = 3.3V), 10 μA I max PD CC CC (2.7V and 3.3V) V applications with capability of interfac- CC Power down high impedance inputs and outputs ing to a 5V signal environment. The T/R input determines the direction of data flow through the device. The OE inputSupports live insertion/withdrawal (Note 1) disables both the A and B ports by placing them in a high ±12 mA output drive on the B Port (V = 3.0V) CC impedance state. The 26Ω series resistor in the B Port out- Implements patented noise/EMI reduction circuitry put helps reduce output overshoot and undershoot. Latch-up performance exceeds 500 mA The LCXZ2245 is fabricated with an advanced CMOS technology to achieve high speed operation while maintain-Equivalent 26Ω series resistor on all B Port outputs ing CMOS low power dissipation.ESD performance: When V is between 0 and 1.5V, the LCXZ2245 is on the CC Human body model > 2000V high impedance state during power up or power down. This Machine model > 200V places the outputs in the high impedance (Z) state prevent- Note 1: To ensure the high-impedance state during power up or down, OE ing intermittent low impedance loading or glitching in bus should be tied to V through a pull-up resistor: the minimum value or the CC oriented applications. resistor is determined by the current-sourcing capability of the driver. Ordering Code: Order Number Package Number Package Description 74LCXZ2245WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74LCXZ2245SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LCXZ2245MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 74LCXZ2245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol Connection Diagram Pin Descriptions Pin Names Description OE Output Enable Input T/R Transmit/Receive Input A –A Side A Inputs or 3-STATE Outputs 0 7 B –B Side B Inputs or 3-STATE Outputs 0 7 © 2000 DS500410
