Low Voltage 16-Bit Bidirectional Transceiver - Fairchild Semiconductor
Description
74LCX16245 Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs and Outputs
February 1994 Revised April 2000
74LCX16245 Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs and Outputs
General Description
The LCX16245 contains sixteen non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus oriented applications.
The device is designed for low voltage (2.
5V or 3.
3V) VCC applications with capability of interfacing to a 5V signal environment.
The device is byte controlled.
Each byte has separate control inputs which could be shorted together for full 16-bit operation.
The T/R inputs determine the direction of data flow through the device.
The OE inputs disable both the A and B ports by placing them in a high impedance state.
The LCX16245 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation.
Features
s 5V tolerant inputs and outputs s 2.
3V–3.
6V VCC specifications provided s 4.
5 ns tPD max (VCC = 3.
3V), 20 µA ICC max s Power down high impedance inputs and outputs s Supports live insertion/withdrawal (Note 1) s ±24 mA output drive (VCC = 3.
0V) s Implements patented noise/EMI reduction circuitry s Latch-up performance exceeds 500 mA s ESD performance: Human body model > 2000V Machine model > 200V
Note 1: To ensure the high-impedance state during power up or down, OE should be tied to VCC through a pull-up resistor: the minimum value or the resistor is determined by the current-sourcing capability of the driver.
Ordering Code:
Order Number 74LCX16245MEA 74LCX16245MTD Package Number MS48A MTD48 Package Description 48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.
300” Wide 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.
1mm 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 OEn T/Rn A0–A15 B0–B15 Description Output...
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