SN74CBT6800A Datasheet, PDF (1/4 Pages) Texas Instruments – 10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS

SN74CBT6800A
10-BIT FET BUS SWITCH
WITH PRECHARGED OUTPUTS
SCDS005L – MARCH 1993 – REVISED JULY 1999
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
D Package Options Include Plastic Shrink
Small-Outline (DB, DBQ), Small-Outline
(DW), and Thin Shrink Small-Outline (PW)
Packages
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, 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.
The SN74CBT6800A is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
INPUT
ON
FUNCTION
L
A port = B port
H
A port = Z
B port = BIASV
logic diagram (positive logic)
13
BIASV
2
A1
23
B1
11
A10
14
B10
1
ON
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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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