SN74CBTK6800 Datasheet, PDF (1/16 Pages) Texas Instruments – 10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS AND ACTIVE-CLAMP UNDERSHOOT-PROTECTION CIRCUIT

SN74CBTK6800
10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS
AND ACTIVE-CLAMP UNDERSHOOT-PROTECTION CIRCUIT
SCDS107B – APRIL 2000 – REVISED OCTOBER 2000
D 5-Ω Switch Connection Between Two Ports
D TTL-Compatible Input Levels
D Power Off Disables Outputs, Permitting
Live Insertion
D Outputs Are Precharged by Bias Voltage to
Minimize Signal Distortion During Live
Insertion
D Active-Clamp Undershoot-Protection
Circuit on the I/Os Clamps Undershoots
Down to –2 V
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
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
description
The SN74CBTK6800 device 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.
The A and B ports have an active-clamp undershoot-protection circuit. When there is an undershoot, the
active-clamp circuit is enabled and current from V_CC is supplied to clamp the output, preventing the pass
transistor from turning on.
The SN74CBTK6800 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
SN74CBTK6800DW
SN74CBTK6800DWR
CBTK6800
–40°C to 85°C SSOP (QSOP) – DBQ Tape and reel
TSSOP – PW
Tape and reel
SN74CBTK6800DBQR CBTK6800
SN74CBTK6800PWR BK6800
TVSOP – DGV
Tape and reel
SN74CBTK6800DGVR BK6800
† _{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
A port = Z
H
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 © 2000, Texas Instruments Incorporated
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