Datasheet

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    
SCDS204 − JULY 2005
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
D Member of the Texas Instruments
Widebus Family
D 5- Switch Connection Between Two Ports
D Rail-to-Rail Switching on Data I/O Ports
D I
off
Supports Partial-Power-Down Mode
Operation
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
description/ordering information
The SN74CBTLV16211C provides 24 bits of high-speed bus switching. The low on-state resistance of the switch
allows connections to be made with minimal propagation delay.
The device is organized as dual 12-bit bus switches with separate output-enable (OE
) inputs. It can be used
as two 12-bit bus switches or as one 24-bit bus switch. When OE
is low, the associated 12-bit bus switch is on,
and port A is connected to port B. When OE
is high, the switch is open, and the high-impedance state exists
between the two ports.
This device is fully specified for partial-power-down applications using I
off
. The I
off
feature ensures that
damaging current will not backflow through the device when it is powered down. The device has isolation during
power off.
To ensure the high-impedance state during power up or power down, OE
should be tied to V
CC
through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
T
A
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
−40°C to 85°C
VFBGA − GRD Tape and reel 74CBTLV16211CGRDR
CN211
−40
°
C to 85
°
C
VFBGA − ZRD (Pb-free) Tape and reel 74CBTLV16211CZRDR
CN211
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
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Copyright 2005, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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