74LCXR2245_08 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – 74LCXR2245 Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs

March 2008
74LCXR2245
Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs
and Outputs and 26Ω Series Resistors on Both A and B Ports
Features
■ 5V tolerant inputs and outputs
■ 2.3V–3.6V V_CC specifications provided
■ 8.0ns t_PD max. (V_CC = 3.3V), 10µA I_CC max.
■ Power down high impedance inputs and outputs
■ Supports live insertion/withdrawal⁽¹⁾
■ ±12mA output drive (V_CC = 3.0V)
■ Implements proprietary noise/EMI reduction circuitry
■ Latch-up performance exceeds 500mA
■ Equivalent 26Ω series resistor on all outputs
■ 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 V_CC through a pull-up
resistor: the minimum value or the resistor is
determined by the current-sourcing capability of the
driver.
General Description
The LCXR2245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus ori-
ented applications. The device is designed for low volt-
age (2.5V and 3.3V) V_CC applications with capability of
interfacing to a 5V signal environment. The T/R input
determines the direction of data flow through the device.
The OE input disables both the A and B ports by placing
them in a high impedance state. The 26Ω series resistor
helps reduce output overshoot and undershoot.
The LCXR2245 is fabricated with an advanced CMOS
technology to achieve high speed operation while main-
taining CMOS low power dissipation.
Ordering Information
Order Number
74LCXR2245WM
74LCXR2245SJ
74LCXR2245MSA
74LCXR2245MTC
Package
Number
M20B
M20D
MSA20
MTC20
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,
4.4mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.
All packages are lead free per JEDEC: J-STD-020B standard.
©2000 Fairchild Semiconductor Corporation
74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com