SN74CBTS6800
10-BIT FET BUS SWITCH
WITH PRECHARGED OUTPUTS AND SCHOTTKY DIODE CLAMPING
SCDS102C – JUNE 1999 – REVISED OCTOBER 2000
D
D
D
D
DB, DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
5-Ω Switch Connection Between Two Ports
TTL-Compatible Input Levels
Outputs Are Precharged by Bias Voltage to
Minimize Signal Distortion During Live
Insertion
Schottky Diodes on the I/Os to Clamp
Undershoots up to –2 V
ON
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
GND
description
The SN74CBTS6800 provides ten bits of
high-speed TTL-compatible bus switching with
Schottky diodes on the I/Os to clamp
undershoots.
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
VCC
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
BIASV
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.
The SN74CBTS6800 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 VCC is 0 V, B port is precharged to BIASV through the equivalent of a 10-kΩ resistor.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
PACKAGE†
TA
TOP-SIDE
MARKING
Tube
SN74CBTS6800DW
Tape and reel
SN74CBTS6800DWR
SSOP – DB
Tape and reel
SN74CBTS6800DBR
CS6800
SSOP (QSOP) – DBQ
Tape and reel
SN74CBTS6800DBQR
CBTS6800
TSSOP – PW
Tape and reel
SN74CBTS6800PWR
CS6800
TVSOP – DGV
Tape and reel
SN74CBTS6800DGVR
SOIC – DW
–40°C to 85°C
40°C
CBTS6800
CS6800
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
FUNCTION TABLE
ON
B1–B10
FUNCTION
L
A1–A10
Connect
H
BIASV
Precharge
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.
Copyright © 2000, Texas Instruments Incorporated
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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
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