74ALVC2245

74ALVC2245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26: Series Resistors in B Outputs

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74ALVC2245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26: Series Resistors in B Outputs

February 2002 Revised March 2005

74ALVC2245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26: Series Resistors in B Outputs
General Description
The ALVC2245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus oriented applications. The T/R input determines the direction of data flow. The OE input disables both the A and B ports by placing them in a high impedance state. The 74ALVC2245 is designed for low voltage (1.65V to 3.6V) VCC applications with I/O compatibility up to 3.6V. The ALVC2245 is also designed with 26: series resistance in the B Port outputs. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus transceivers transmitters The 74ALVC2245 is fabricated with an advanced CMOS technology to achieve high-speed operation while maintaining low CMOS power dissipation.

Features
s 1.65V to 3.6V VCC supply operation s 3.6V tolerant inputs and outputs s 26: series resistors in B Port outputs s Power-off high impedance inputs and outputs s Supports Live Insertion and Withdrawal (Note 1) s tPD (A to B)

4.9 ns max for 3.0V to 3.6V VCC 6.1 ns max for 2.3V to 2.7V VCC 9.8 ns max for 1.65V to 1.95V VCC
s Uses patented Quiet Series noise/EMI reduction circuitry s Latchup conforms to JEDEC JED78 s ESD performance:

Human body model 2000V Machine model 200V
Note 1: To ensure the high impedance state during power up and power down, OEn should be tied to VCC through a pull up resistor. The minimum value of the resistor is determined by the current sourcing capability of the driver.

Ordering Code:
Order Number 74ALVC2245WM 74ALVC2245MTC Package Number M20B MTC20 Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 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

Pin Descriptions
Pin Names OE T/R A0 A7 B0 B7 Description Output Enable Input (Active LOW) Transmit/Receive Input Side A Inputs or 3-STATE Outputs Side B Inputs or 3-STATE Outputs

Quiet Series is a trademark of Fairchild Semiconductor Corporation.

2005 Fairchild Semiconductor Corporation

DS500717

www.fairchildsemi.com