SN74CBT6800A_16 Datasheet, PDF (1/14 Pages) Texas Instruments – 10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS

SN74CBT6800A
10-BIT FET BUS SWITCH
WITH PRECHARGED OUTPUTS
SCDS005N – MARCH 1993 – REVISED MARCH 2001
D 5-Ω Switch Connection Between Two Ports
D TTL-Compatible Input Levels
D Outputs Are Precharged by Bias Voltage to
Minimize Signal Distortion During Live
Insertion
description
The SN74CBT6800A provides ten bits of
high-speed TTL-compatible bus switching. The
low on-state resistance of the switch allows
bidirectional connections to be made while adding
near-zero propagation delay. The device also
precharges the B port to a user-selectable
bias voltage (BIASV) to minimize live-insertion
noise.
DB, DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
ON 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
A9 10
A10 11
GND 12
24 V_CC
23 B1
22 B2
21 B3
20 B4
19 B5
18 B6
17 B7
16 B8
15 B9
14 B10
13 BIASV
The SN74CBT6800A is organized as one 10-bit switch with a single enable (ON) input. When ON is low, the
switch is on, and port A is connected to port B. When ON is high, the switch between port A and port B is open.
When ON is high or V_CC is 0 V, B port is precharged to BIASV through the equivalent of a 10-kΩ resistor.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC – DW
Tube
Tape and reel
SN74CBT6800ADW
SN74CBT6800ADWR
CBT6800A
SSOP – DB
Tape and reel
–40°C to 85°C
SSOP (QSOP) – DBQ Tape and reel
SN74CBT6800ADBR
SN74CBT6800ADBQR
CT6800A
CBT6800A
TSSOP – PW
Tape and reel SN74CBT6800APWR CT6800A
TVSOP – DGV
Tape and reel SN74CBT6800ADGVR CT6800A
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines}
are available at www.ti.com/sc/package.
FUNCTION TABLE
INPUT
ON
FUNCTION
L
A port = B port
H
A port = Z
B port = BIASV
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright  2001, Texas Instruments Incorporated
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