SN54CBT16244, SN74CBT16244
16-BIT FET BUS SWITCHES
 
 
SCDS031I – MAY 1996 – REVISED OCTOBER 2000
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Members of Texas Instruments’ Widebus
Family
Standard ’16244-Type Pinout
5-Ω Switch Connection Between Two Ports
TTL-Compatible Input Levels
description
The  ’CBT16244  devices  provide  16  bits  of
high-speed  TTL-compatible  bus  switching  in  a
standard ’16244 device pinout. The low on-state
resistance of the switch allows connections to be
made with minimal propagation delay.
These  devices  are  organized  as  four  4-bit
low-impedance  switches  with  separate
output-enable  (OE)  inputs.  When  OE is  low,  the
switch is on, and data can ow from port A to port
B, or vice versa. When OE is high, the switch is
open,  and  the  high-impedance  state  exists
between the two ports.
ORDERING INFORMATION
TAPACKAGE†ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
     TSSOP – DGG Tape and reel SN74CBT16244DGGR CBT16244
     TVSOP – DGV Tape and reel SN74CBT16244DGVR CY244
       –55°C to 125°C CFP – WD Tube SNJ54CBT16244WD SNJ54CBT16244WD
†Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
FUNCTION TABLE
(each 4-bit bus switch)
INPUT
OE
OUTPUTS
A, B
 L A port = B port
 H Disconnect
Copyright  2000, Texas Instruments Incorporated
PRODUCTION  DATA  information  is  current  as  of  publication  date.
Products conform to specications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE
1B1
1B2
GND
1B3
1B4
VCC
2B1
2B2
GND
2B3
2B4
3B1
3B2
GND
3B3
3B4
VCC
4B1
4B2
GND
4B3
4B4
4OE
2OE
1A1
1A2
GND
1A3
1A4
VCC
2A1
2A2
GND
2A3
2A4
3A1
3A2
GND
3A3
3A4
VCC
4A1
4A2
GND
4A3
4A4
3OE
       SN54CBT16244 . . . WD PACKAGE
       SN74CBT16244 . . . DGG, DGV, OR DL PACKAGE
(TOP VIEW)
On products compliant to MIL-PRF-38535, all parameters are tested
unless  otherwise  noted.  On  all  other  products,  production
processing does not necessarily include testing of all parameters.
Widebus is a trademark of Texas Instruments.