SN74CBT3861
10-BIT FET BUS SWITCH
SCDS061D – APRIL 1998 – REVISED OCTOBER 2000
DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
5-Ω Switch Connection Between Two Ports
TTL-Compatible Input Levels
Latch-Up Performance Exceeds 250 mA Per
JESD 17
NC
A1
A2
A3
A4
A5
A6
A7
A8
V
CC
1
2
3
4
5
6
7
8
9
24
23
22
21
20
19
18
17
16
OE
B1
B2
B3
B4
B5
B6
B7
description
The SN74CBT3861 provides ten bits of
high-speed TTL-compatible bus switching. The
low on-state resistance of the switch allows
connections to be made with minimal propagation
delay.
A9 10
15 B8
The device is organized as one 10-bit switch with
a single output-enable (OE) input. When OE is
low, the 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.
A10
GND
B9
B10
11
12
14
13
NC – No internal connection
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
Tube
SN74CBT3861DW
SOIC – DW
CBT3861
Tape and reel SN74CBT3861DWR
Tape and reel SN74CBT3861DBQR
Tape and reel SN74CBT3861PWR
Tape and reel SN74CBT3861DGVR
–40°C to 85°C
SSOP (QSOP) – DBQ
TSSOP – PW
CBT3861
CU861
TVSOP – DGV
CU861
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
FUNCTION TABLE
INPUT
FUNCTION
OE
L
A port = B port
Disconnect
H
logic diagram (positive logic)
2
22
13
A1
A10
OE
B1
11
23
B10
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.
1
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