SN74CBTD16211
24-BIT FET BUS SWITCH
WITH LEVEL SHIFTING
SCDS048H – MARCH 1998 – REVISED JULY 2002
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
Member of Texas Instruments Widebus
Family
5-Ω Switch Connection Between Two Ports
NC
1A1
1A2
1A3
1A4
1A5
1A6
GND
1A7
1A8
1A9
1A10
1A11
1A12
2A1
2A2
1OE
2OE
1B1
1B2
1B3
1B4
1B5
GND
1B6
1B7
1B8
1B9
1B10
1B11
1B12
2B1
2B2
2B3
GND
2B4
2B5
2B6
1
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
TTL-Compatible Input Levels
2
Designed to Be Used in Level-Shifting
Applications
3
4
5
description/ordering information
6
7
The SN74CBTD16211 provides 24 bits of
high-speed TTL-compatible bus switching. The
low on-state resistance of the switch allows
connections to be made with minimal propagation
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
delay. A diode to V
is integrated in the circuit to
CC
allow for level shifting from 5-V signals at the
device inputs to 3.3-V signals at the device
outputs.
The device is organized as a dual 12-bit bus
switch with separate output-enable (OE) inputs. It
can be used as two 12-bit bus switches or as one
24-bit bus switch. When OE is low, the associated
12-bit bus 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
ports.
V
CC
2A3
GND
2A4
2A5
2A6
2A7 23
2A8 24
2A9 25
2A10 26
2A11 27
2A12 28
34 2B7
33 2B8
32 2B9
31 2B10
30 2B11
29 2B12
NC – No internal connection
ORDERING INFORMATION
ORDERABLE
TOP-SIDE
MARKING
†
PACKAGE
T
A
PART NUMBER
SN74CBTD16211DL
SN74CBTD16211DLR
SN74CBTD16211DGGR
SN74CBTD16211DGVR
Tube
SSOP – DL
CBTD16211
Tape and reel
–40°C to 85°C
TSSOP – DGG Tape and reel
TVSOP – DGV Tape and reel
CBTD16211
CYD211
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
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.
Widebus is a trademark of Texas Instruments.
Copyright 2002, 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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