SCDS121B − JUNE 2003 − REVISED OCTOBER 2003
D Member of the Texas Instruments
D
D
D
D
D
D
D
D
D
D
D
D
D
DGG OR DL PACKAGE
(TOP VIEW)
Widebus Family
Undershoot Protection for Off-Isolation on
A and B Ports Up To −2 V
Bidirectional Data Flow, With Near-Zero
Propagation Delay
Low ON-State Resistance (ron)
Characteristics (ron = 3 Ω Typical)
Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
(Cio(OFF) = 5.5 pF Typical)
Data and Control Inputs Provide
Undershoot Clamp Diodes
Low Power Consumption
(ICC = 3 µA Max)
VCC Operating Range From 4 V to 5.5 V
Data I/Os Support 0 to 5-V Signaling Levels
(0.8-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, 5-V)
Control Inputs Can Be Driven by TTL or
5-V/3.3-V CMOS Outputs
Ioff Supports Partial-Power-Down Mode
Operation
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Performance Tested Per JESD 22
− 2000-V Human-Body Model
(A114-B, Class II)
− 1000-V Charged-Device Model (C101)
Supports Both Digital and Analog
Applications: PCI Interface, Bus Isolation,
Low-Distortion Signal Gating
S0
1A
1B3
2A
2B3
3A
3B3
GND
4A
4B3
5A
5B3
6A
6B3
7A
7B3
VCC
8A
GND
8B3
9A
9B3
10A
10B3
11A
11B3
12A
12B3
1
56
2
55
3
54
4
53
5
52
6
51
7
50
8
49
9
48
10
47
11
46
12
45
13
44
14
43
15
42
16
41
17
40
18
39
19
38
20
37
21
36
22
35
23
34
24
33
25
32
26
31
27
30
28
29
S1
S2
1B1
1B2
2B1
2B2
3B1
GND
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
GND
8B2
9B1
9B2
10B1
10B2
11B1
11B2
12B1
12B2
description/ordering information
ORDERING INFORMATION
ORDERABLE
PART NUMBER
PACKAGE†
TA
SSOP − DL
−40°C to 85°C
TSSOP − DGG
TOP-SIDE
MARKING
Tube
SN74CBT16214CDL
Tape and reel
SN74CBT16214CDLR
Tube
SN74CBT16214CDGG
Tape and reel
SN74CBT16214CDGGR
CBT16214C
CBT16214C
† 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 2003, Texas Instruments Incorporated
!"#$%&'#! ( )*$$+!' &( #" ,*-.)&'#! /&'+0
$#/*)'( )#!"#$% '# (,+)")&'#!( ,+$ '1+ '+$%( #" +2&( !('$*%+!'(
('&!/&$/ 3&$$&!'40 $#/*)'#! ,$#)+((!5 /#+( !#' !+)+((&$.4 !).*/+
'+('!5 #" &.. ,&$&%+'+$(0
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SCDS121B − JUNE 2003 − REVISED OCTOBER 2003
description/ordering information (continued)
The SN74CBT16214C is a high-speed TTL-compatible FET multiplexer/demultiplexer with low ON-state
resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and
B ports of the SN74CBT16214C provides protection for undershoot up to −2 V by sensing an undershoot event
and ensuring that the switch remains in the proper OFF state.
The SN74CBT16214C is a 12-bit 1-of-3 multiplexer/demultiplexer. The select (S0, S1, S2) inputs control the
data path of each multiplexer/demultiplexer. When the multiplexer/demultiplexer is enabled, the A port is
connected to the B port, allowing bidirectional data flow between ports. When the multiplexer/demultiplexer is
disabled, a high-impedance state exists between the A and B ports.
This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that
damaging current will not backflow through the device when it is powered down. The device has isolation during
power off.
To ensure the high-impedance state during power up or power down, each select input should be tied to GND
through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability
of the driver.
FUNCTION TABLE
INPUTS
2
S2
S1
S0
INPUT/OUTPUT
A
FUNCTION
L
L
L
Z
Disconnect
L
L
H
B1
A port = B1 port
L
H
L
B2
A port = B2 port
L
H
H
Z
Disconnect
H
L
L
Z
Disconnect
H
L
H
B3
A port = B3 port
H
H
L
B1
A port = B1 port
H
H
H
B2
A port = B2 port
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SCDS121B − JUNE 2003 − REVISED OCTOBER 2003
logic diagram (positive logic)
2
54
1A
1B1
SW
53
1B2
SW
3
1B3
SW
27
30
12A
12B1
SW
29
SW
12B2
28
SW
12B3
1
S0
S1
56
55
S2
simplified schematic, each FET switch (SW)
A
B
Undershoot
Protection Circuit
EN†
† EN is the internal enable signal applied to the switch.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SCDS121B − JUNE 2003 − REVISED OCTOBER 2003
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Control input voltage range, VIN (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Switch I/O voltage range, VI/O (see Notes 1, 2, and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Control input clamp current, IIK (VIN < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA
I/O port clamp current, II/OK (VI/O < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA
ON-state switch current, II/O (see Note 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±128 mA
Continuous current through VCC or GND terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA
Package thermal impedance, θJA (see Note 5): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W
DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltages are with respect to ground unless otherwise specified.
2. The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
3. VI and VO are used to denote specific conditions for VI/O.
4. II and IO are used to denote specific conditions for II/O.
5. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 6)
MIN
MAX
VCC
VIH
Supply voltage
4
5.5
UNIT
V
High-level control input voltage
2
5.5
V
VIL
VI/O
Low-level control input voltage
0
0.8
V
Data input/output voltage
0
5.5
V
TA
Operating free-air temperature
−40
85
°C
NOTE 6: All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SCDS121B − JUNE 2003 − REVISED OCTOBER 2003
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VIK
Control inputs
VCC = 4.5 V,
VIKU
Data inputs
VCC = 5 V,
IIN
Control inputs
VCC = 5.5 V,
IOZ‡
VCC = 5.5 V,
Ioff
VCC = 0,
ICC
VCC = 5.5 V,
∆ICC§
Cin
Control inputs
Control inputs
IIN = −18 mA
0 mA > II ≥ −50 mA,
VIN = VCC or GND,
VIN = VCC or GND
VO = 0 to 5.5 V,
VI = 0,
VCC = 5.5 V,
VIN = 3 V or 0
MIN
Switch OFF
Switch OFF,
VIN = VCC or GND
VO = 0 to 5.5 V,
II/O = 0,
VIN = VCC or GND,
VI = 0
One input at 3.4 V,
Other inputs at VCC or GND
B port
Cio(ON)
MAX
UNIT
−1.8
V
−2
V
±1
µA
±10
µA
10
µA
3
µA
2.5
mA
Switch ON or OFF
A port
Cio(OFF)
TYP†
3.5
pF
10
pF
5.5
pF
18
pF
VI/O = 3 V or 0,
Switch OFF,
VIN = VCC or GND
VI/O = 3 V or 0,
Switch ON,
VIN = VCC or GND
VCC = 4 V,
TYP at VCC = 4 V
VI = 2.4 V,
IO = −15 mA
8
12
IO = 64 mA
IO = 30 mA
3
6
VI = 0
3
6
ron¶
VCC = 4.5 V
Ω
VI = 2.4 V,
IO = −15 mA
5
10
VIN and IIN refer to control inputs. VI, VO, II, and IO refer to data pins.
† All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C.
‡ For I/O ports, the parameter IOZ includes the input leakage current.
§ This is the increase in supply current for each input that is at the specified voltage level, rather than VCC or GND.
¶ Measured by the voltage drop between the A and B terminals at the indicated current through the switch. ON-state resistance is determined by
the lower of the voltages of the two (A or B) terminals.
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 3)
VCC = 4 V
VCC = 5 V
± 0.5 V
MIN
MIN
FROM
(INPUT)
TO
(OUTPUT)
A or B
B or A
0.24
tpd(s)
S
A
6.7
ten
S
B
tdis
S
B
PARAMETER
tpd#
MAX
UNIT
MAX
0.15
ns
1.5
6.3
ns
7.2
1.5
6.6
ns
7.5
1.5
7.3
ns
# The propagation delay is the calculated RC time constant of the typical ON-state resistance of the switch and the specified load capacitance,
when driven by an ideal voltage source (zero output impedance).
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
SCDS121B − JUNE 2003 − REVISED OCTOBER 2003
undershoot characteristics (see Figures 1 and 2)
PARAMETER
TEST CONDITIONS
VOUTU
VCC = 5.5 V,
Switch OFF,
† All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C.
VCC
Input
Generator
Ax
VS
DUT
2
VOH−0.3
VIN = VCC or GND
Input
(Open
Socket)
Bx
100 kΩ
90 %
2 ns
MAX
UNIT
V
POST OFFICE BOX 655303
5.5 V
2 ns
10 %
−2 V
20 ns
10 pF
Figure 1. Device Test Setup
90 %
10 %
Output
(VOUTU)
6
TYP†
11 V
100 kΩ
50 Ω
MIN
VOH
VOH − 0.3
Figure 2. Transient Input Voltage (VI) and Output
Voltage (VOUTU) Waveforms
(Switch OFF)
• DALLAS, TEXAS 75265
SCDS121B − JUNE 2003 − REVISED OCTOBER 2003
PARAMETER MEASUREMENT INFORMATION
VCC
Input Generator
VIN
50 Ω
50 Ω
VG1
TEST CIRCUIT
DUT
7V
Input Generator
VI
S1
RL
VO
GND
50 Ω
50 Ω
VG2
CL
(see Note A)
RL
TEST
VCC
S1
RL
VI
CL
tpd(s)
5 V ± 0.5 V
4V
Open
Open
500 Ω
500 Ω
VCC or GND
VCC or GND
50 pF
50 pF
tPLZ/tPZL
5 V ± 0.5 V
4V
7V
7V
500 Ω
500 Ω
GND
GND
50 pF
50 pF
0.3 V
0.3 V
tPHZ/tPZH
5 V ± 0.5 V
4V
Open
Open
500 Ω
500 Ω
VCC
VCC
50 pF
50 pF
0.3 V
0.3 V
Output
Control
(VIN)
V∆
3V
1.5 V
3V
1.5 V
1.5 V
0V
tPLH
VOH
Output
1.5 V
Output
Waveform 1
S1 at 7 V
(see Note B)
tPLZ
3.5 V
1.5 V
tPZH
tPHL
1.5 V
VOL
1.5 V
0V
tPZL
Output
Control
(VIN)
Open
Output
Waveform 2
S1 at Open
(see Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES (tpd(s))
VOL + V∆
VOL
tPHZ
1.5 V
VOH − V∆
VOH
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd(s). The tpd propagation delay is the calculated RC time constant of the typical ON-state
resistance of the switch and the specified load capacitance, when driven by an ideal voltage source (zero output impedance).
H. All parameters and waveforms are not applicable to all devices.
Figure 3. Test Circuit and Voltage Waveforms
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
PACKAGE OPTION ADDENDUM
www.ti.com
27-Sep-2007
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
74CBT16214CDGGRE4
ACTIVE
TSSOP
DGG
56
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74CBT16214CDGGRG4
ACTIVE
TSSOP
DGG
56
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74CBT16214CDGGR
ACTIVE
TSSOP
DGG
56
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74CBT16214CDL
ACTIVE
SSOP
DL
56
20
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74CBT16214CDLG4
ACTIVE
SSOP
DL
56
20
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74CBT16214CDLR
ACTIVE
SSOP
DL
56
1000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74CBT16214CDLRG4
ACTIVE
SSOP
DL
56
1000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
Lead/Ball Finish
MSL Peak Temp (3)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
11-Mar-2008
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
Diameter Width
(mm) W1 (mm)
A0 (mm)
B0 (mm)
K0 (mm)
P1
(mm)
W
Pin1
(mm) Quadrant
SN74CBT16214CDGGR
TSSOP
DGG
56
2000
330.0
24.4
8.6
15.6
1.8
12.0
24.0
Q1
SN74CBT16214CDLR
SSOP
DL
56
1000
330.0
32.4
11.35
18.67
3.1
16.0
32.0
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
11-Mar-2008
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
SN74CBT16214CDGGR
TSSOP
DGG
56
2000
346.0
346.0
41.0
SN74CBT16214CDLR
SSOP
DL
56
1000
346.0
346.0
49.0
Pack Materials-Page 2
MECHANICAL DATA
MSSO001C – JANUARY 1995 – REVISED DECEMBER 2001
DL (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
48 PINS SHOWN
0.025 (0,635)
0.0135 (0,343)
0.008 (0,203)
48
0.005 (0,13) M
25
0.010 (0,25)
0.005 (0,13)
0.299 (7,59)
0.291 (7,39)
0.420 (10,67)
0.395 (10,03)
Gage Plane
0.010 (0,25)
1
0°–ā8°
24
0.040 (1,02)
A
0.020 (0,51)
Seating Plane
0.110 (2,79) MAX
0.004 (0,10)
0.008 (0,20) MIN
PINS **
28
48
56
A MAX
0.380
(9,65)
0.630
(16,00)
0.730
(18,54)
A MIN
0.370
(9,40)
0.620
(15,75)
0.720
(18,29)
DIM
4040048 / E 12/01
NOTES: A.
B.
C.
D.
All linear dimensions are in inches (millimeters).
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion not to exceed 0.006 (0,15).
Falls within JEDEC MO-118
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
MECHANICAL DATA
MTSS003D – JANUARY 1995 – REVISED JANUARY 1998
DGG (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
48 PINS SHOWN
0,27
0,17
0,50
48
0,08 M
25
6,20
6,00
8,30
7,90
0,15 NOM
Gage Plane
1
0,25
24
0°– 8°
A
0,75
0,50
Seating Plane
0,15
0,05
1,20 MAX
PINS **
0,10
48
56
64
A MAX
12,60
14,10
17,10
A MIN
12,40
13,90
16,90
DIM
4040078 / F 12/97
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold protrusion not to exceed 0,15.
Falls within JEDEC MO-153
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
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Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
Products
Amplifiers
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Clocks and Timers
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amplifier.ti.com
dataconverter.ti.com
dsp.ti.com
www.ti.com/clocks
interface.ti.com
logic.ti.com
power.ti.com
microcontroller.ti.com
www.ti-rfid.com
www.ti.com/lprf
Applications
Audio
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Broadband
Digital Control
Medical
Military
Optical Networking
Security
Telephony
Video & Imaging
Wireless
www.ti.com/audio
www.ti.com/automotive
www.ti.com/broadband
www.ti.com/digitalcontrol
www.ti.com/medical
www.ti.com/military
www.ti.com/opticalnetwork
www.ti.com/security
www.ti.com/telephony
www.ti.com/video
www.ti.com/wireless
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