TCA9406 [TI]

2-BIT BIDIRECTIONAL 1MHz, I2C BUS AND SMBUS VOLTAGE-LEVEL TRANSLATOR; 2位双向​​1MHz时, I2C总线和SMBus电压电平转换
TCA9406
型号: TCA9406
厂家: TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述:

2-BIT BIDIRECTIONAL 1MHz, I2C BUS AND SMBUS VOLTAGE-LEVEL TRANSLATOR
2位双向​​1MHz时, I2C总线和SMBus电压电平转换

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TCA9406  
www.ti.com  
SCPS221 JULY 2010  
2-BIT BIDIRECTIONAL 1MHz, I2C BUS AND SMBUS VOLTAGE-LEVEL TRANSLATOR WITH  
8kV HBM ESD  
Check for Samples: TCA9406  
1
FEATURES  
TYPICAL LEVEL-SHIFTER  
APPLICATIONS  
2
2-Bit Bidirectional Translator for SDA and SCL  
I2C/SMBus  
UART  
Lines in Mixed-Mode I2C Applications  
Lock-Up Free for Bus Isolation when OE  
Control Pin referring to VCCA with 5-V Input  
Tolerant  
GPIO  
DCT OR DCU PACKAGE  
(TOP VIEW)  
Level Translation Range  
1.8 V to 2.5 V/3.3 V/5 V  
2.5 V to 2.5 V/3.3 V/5 V  
3.3 V to 3.3 V/5 V  
SCL_B  
1
2
3
4
8
7
6
5
SDA_B  
GND  
VCCA  
VCCB  
OE  
Internal10-kΩ Pullup Resistor on Each Port  
and Option to Add External Pullup Resistor if  
Required  
SDA_A  
SCL_A  
Provides Bidirectional Voltage Translation  
With No Direction Pin  
YZP PACKAGE  
(BOTTOM VIEW)  
Ioff Support Partial Power Down (VCC= 0 V)  
With 2 mA  
D1  
C1  
B1  
A1  
D2  
C2  
B2  
A2  
4 5  
3 6  
2 7  
1 8  
SDA_A  
VCCA  
SCL_A  
OE  
High-Impedance Output SCL1, SDA1, SCL2,  
and SDA2 Pins When OE = Low or VCC= 0 V  
VCCB  
GND  
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
SDA_B  
SCL_B  
ESD Protection Exceeds JESD 22  
A Port  
2500-V Human-Body Model (A114-B)  
250-V Machine Model (A115-A)  
1500-V Charged-Device Model (C101)  
B Port  
8-kV Human-Body Model (A114-B)  
250-V Machine Model (A115-A)  
1500-V Charged-Device Model (C101)  
DESCRIPTION/ORDERING INFORMATION  
The TCA9406 is a dual bidirectional I2C-Bus and SMBus Voltage-Level translator with enable (OE) Input. It is  
operational from 1.65 V to 3.6 V on A-Port and 2.3 V to 5.5 V on B-port. Enable (OE) input is referenced to  
VCCA with a maximum input voltage tolerance of 4.6 V.  
The TCA9406 can operate up to 24Mbps in push pull mode and 2Mbps with open drain mod. Its compatible  
with a standard I2C bus 100 kHz, 400 kHz and 1 MHz at both sides of A-Port and B-Port.  
1
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.  
NanoStar is a trademark of Texas Instruments.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2010, Texas Instruments Incorporated  
TCA9406  
SCPS221 JULY 2010  
www.ti.com  
With the standard I2C bus system, it needs pull-up resistors to provide logic HIGH levels on the translator  
bus. The TCA9406 is an open-drain bus level configuration of the I2C-bus. The value of pullup resistors  
depends on the system, but each side of the translator must have pull-up resistors and TCA9406 already has  
10 kΩ pullup resistors on each side and it allows to add additional external pull-up resistors. It can work with  
standard-mode, fast-mode and fast mode plus I2C-bus devices in additional to SMBus.  
The TCA9406 is not a bus buffer like the PCA9515A and PCA9517. It provides both level translation and  
physically isolates the capacitance to either side of the bus when both sides are connected. The Ioff feature  
can be utilized to isolate the bus into high impedance when using the power supply to off the either VCCA or  
VCCB  
.
The Enable (OE) should be tied to GND through a pulldown resistor to ensure the high-impedance state  
during power up or power down. The minimum value of the resistor is determined by the current-sourcing  
capability of the driver.  
ORDERING INFORMATION(1)  
TA  
PACKAGE(2)  
ORDERABLE PART NUMBER  
TOP-SIDE MARKING(3)  
NanoStar™ – WCSP (DSBGA)  
0.23-mm Large Bump – YZP  
Reel of 3000  
TCA9406YZPR  
Reel of 3000  
Tube of 250  
Reel of 3000  
TCA9406DCTR  
TCA9406DCTT  
TCA9406DCUR  
–40°C to 85°C  
SSOP – DCT  
VSSOP – DCU  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
(3) DCT: The actual top-side marking has three additional characters that designate the year, month, and wafer fab/assembly site.  
DCU: The actual top-side marking has one additional character that designates the wafer fab/assembly site.  
YZP: The actual top-side marking has three preceding characters to denote year, month, and sequence code, and one following  
character to designate the wafer fab/assembly site. Pin 1 identifier indicates solder-bump composition (1 = SnPb, • = Pb-free).  
PIN DESCRIPTION  
NO.  
NAME  
TYPE  
FUNCTION  
DCT,  
DCU  
YZP  
1
2
A1  
B1  
SDA_B  
GND  
I/O  
Input/output B. Referenced to VCCB. Allow I2C_SDA configured to 2.5V/3.3V/5V  
Ground  
GND  
A-port supply voltage. 1.65 V VCCA 3.6 V and VCCA VCCB. Configuration for  
SDA_A, SCL_A, and OE  
3
C1  
VCCA  
PWR  
4
5
D1  
D2  
SDA_A  
SCL_A  
I/O  
I/O  
Input/output A. Referenced to VCCA. Allows I2C_SDA configured to 1.8V, 2.5V, 3.3V  
Input/output A. Referenced to VCCA. Allows I2C_SCL configured to 1.8V, 2.5V, 3.3V  
Output enable (active High). Pull OE low to place all outputs in 3-state mode.  
Referenced to VCCA. Pull OE to LOW to place all outputs in 3-state mode with 3.6V  
input tolerance.  
6
C2  
OE  
Input  
7
8
B2  
A2  
VCCB  
PWR  
I/O  
B-port supply voltage. 2.3 V VCCB 5.5 V for SDA_B, SCL_B  
SCL_B  
Input/output B. Referenced to VCCB. Allow I2C_SCL configured to 2.5V/3.3V/5V  
2
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Copyright © 2010, Texas Instruments Incorporated  
Product Folder Link(s): TCA9406  
TCA9406  
www.ti.com  
SCPS221 JULY 2010  
TYPICAL OPERATING CIRCUIT  
Optional Resistors  
1.8V  
3.3V  
0.1!F  
VCCA  
VCCB  
SDA_A  
SCL_A  
SDA_B  
SCL_B  
Master  
I2C  
Bus  
I2C  
Bus  
Devices  
OE  
Design Notes:  
OE can be directly tie to 1.8V (VccA), if the chip wants all the ways ENABLE Mode.  
Copyright © 2010, Texas Instruments Incorporated  
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3
Product Folder Link(s): TCA9406  
TCA9406  
SCPS221 JULY 2010  
www.ti.com  
ABSOLUTE MAXIMUM RATINGS(1)  
over recommended operating free-air temperature range (unless otherwise noted)  
MIN  
–0.5  
–0.5  
–0.5  
–0.5  
–0.5  
–0.5  
MAX  
4.6  
6.5  
4.6  
6.5  
4.6  
6.5  
UNIT  
V
VCCA  
VCCB  
Supply voltage range  
Supply voltage range  
V
A port  
B port  
A port  
B port  
A port  
B port  
VI < 0  
VO < 0  
VI  
Input voltage range(2)  
V
V
V
Voltage range applied to any output  
VO  
VO  
in the high-impedance or power-off state(2)  
–0.5 VCCA + 0.5  
Voltage range applied to any output in the high or low state(2) (3)  
–0.5 VCCB + 0.5  
IIK  
IOK  
IO  
Input clamp current  
–50  
–50  
±50  
mA  
mA  
mA  
mA  
Output clamp current  
Continuous output current  
Continuous current through VCCA, VCCB, or GND  
±100  
220  
227  
102  
DCT package  
DCU package  
YZP package  
qJA  
Package thermal impedance(4)  
°C/W  
°C  
Tstg  
Storage temperature range  
–65  
150  
(1) 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.  
(2) The input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.  
(3) The value of VCCA and VCCB are provided in the recommended operating conditions table.  
(4) The package thermal impedance is calculated in accordance with JESD 51-7.  
RECOMMENDED OPERATING CONDITIONS(1) (2)  
VCCA  
VCCB  
MIN  
MAX  
UNIT  
V
VCCA  
VCCB  
Supply voltage(3)  
Supply voltage  
1.65  
3.6  
2.3  
VCCI – 0.2  
VCCI – 0.4  
VCCI – 0.4  
VCCA × 0.65  
0
5.5  
V
1.65 V to 1.95 V  
2.3 V to 3.6 V  
VCCI  
A-port I/Os  
2.3 V to 5.5 V  
2.3 V to 5.5 V  
VCCI  
High-level  
VIH  
V
V
input voltage  
B-port I/Os  
VCCI  
1.65 V to 3.6 V  
OE input  
5.5  
A-port I/Os  
0.15  
Low-level  
input voltage  
(4)  
VIL  
B-port I/Os  
1.65 V to 3.6 V  
2.3 V to 5.5 V  
2.3 V to 5.5 V  
0
0.15  
OE input  
0
VCCA × 0.35  
A-port I/Os, push-pull driving  
B-port I/Os, push-pull driving  
Control input  
10  
10  
10  
85  
Input transition  
rise or fall rate  
Δt/Δv  
1.65 V to 3.6 V  
ns/V  
°C  
TA  
Operating free-air temperature  
–40  
(1) VCCI is the supply voltage associated with the input port.  
(2) VCCO is the supply voltage associated with the output port.  
(3) VCCA must be less than or equal to VCCB, and VCCA must not exceed 3.6 V.  
(4) The maximum VIL value is provided to ensure that a valid VOL is maintained. The VOL value is VIL plus the voltage drop across the  
pass-gate transistor.  
4
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Copyright © 2010, Texas Instruments Incorporated  
Product Folder Link(s): TCA9406  
TCA9406  
www.ti.com  
SCPS221 JULY 2010  
ELECTRICAL CHARACTERISTICS(1) (2) (3)  
over recommended operating free-air temperature range (unless otherwise noted)  
TA = 25°C  
–40°C to 85°C  
MIN MAX  
TEST  
CONDITIONS  
PARAMETER  
VOHA  
VOLA  
VOHB  
VOLB  
II  
VCCA  
VCCB  
UNIT  
MIN TYP MAX  
IOH = –20 mA,  
VIB VCCB – 0.4 V  
1.65 V to 3.6 V  
1.65 V to 3.6 V  
1.65 V to 3.6 V  
1.65 V to 3.6 V  
2.3 V to 5.5 V  
2.3 V to 5.5 V  
2.3 V to 5.5 V  
2.3 V to 5.5 V  
VCCA × 0.67  
V
V
V
V
IOL = 1 mA,  
VIB 0.15 V  
0.4  
IOH = –20 mA,  
VIA VCCA – 0.2 V  
VCCB × 0.67  
IOL = 1 mA,  
VIA 0.15 V  
0.4  
OE  
1.65 V to 3.6 V  
0 V  
2.3 V to 5.5 V  
0 to 5.5 V  
0 V  
±1  
±1  
±1  
±1  
±2  
±2  
±2  
±2  
2.4  
2.2  
–1  
12  
–1  
1
mA  
mA  
mA  
mA  
A port  
B port  
A or B port  
Ioff  
0 to 3.6 V  
1.65 V to 3.6 V  
1.65 V to VCCB  
3.6 V  
IOZ  
2.3 V to 5.5 V  
2.3 V to 5.5 V  
0 V  
VI = VO = open,  
IO = 0  
ICCA  
mA  
mA  
0 V  
5.5 V  
1.65 V to VCCB  
3.6 V  
2.3 V to 5.5 V  
0 V  
VI = VO = open,  
IO = 0  
ICCB  
0 V  
5.5 V  
VI = VCCI or GND,  
IO = 0  
ICCA + ICCB  
1.65 V to VCCB  
2.3 V to 5.5 V  
14.4  
3.5  
mA  
CI  
OE  
3.3 V  
3.3 V  
3.3 V  
3.3 V  
2.5  
10  
5
pF  
A or B port  
A port  
B port  
Cio  
6
pF  
6
7.5  
(1) VCCI is the VCC associated with the input port.  
(2) VCCO is the VCC associated with the output port.  
(3) VCCA must be less than or equal to VCCB, and VCCA must not exceed 3.6 V.  
Copyright © 2010, Texas Instruments Incorporated  
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TCA9406  
SCPS221 JULY 2010  
www.ti.com  
TIMING REQUIREMENTS  
over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (unless otherwise noted)  
VCCB = 2.5 V  
± 0.2 V  
VCC = 3.3 V  
± 0.3 V  
VCC = 5 V  
± 0.5 V  
UNIT  
MIN  
MAX  
MIN  
MAX  
MIN  
MAX  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
21  
2
22  
2
24  
2
Data rate  
Mbps  
ns  
47  
45  
41  
Pulse  
duration  
tw  
Data inputs  
500  
500  
500  
TIMING REQUIREMENTS  
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (unless otherwise noted)  
VCCB = 2.5 V  
± 0.2 V  
VCC = 3.3 V  
± 0.3 V  
VCC = 5 V  
± 0.5 V  
UNIT  
MIN  
MAX  
MIN  
MAX  
MIN  
MAX  
24  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
20  
2
22  
2
Data rate  
Mbps  
ns  
2
50  
45  
41  
Pulse  
duration  
tw  
Data inputs  
500  
500  
500  
TIMING REQUIREMENTS  
over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (unless otherwise noted)  
VCC = 3.3 V  
± 0.3 V  
VCC = 5 V  
± 0.5 V  
UNIT  
MIN  
MAX  
23  
MIN  
MAX  
24  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Data rate  
Mbps  
ns  
2
2
43  
41  
tw  
Pulse duration  
Data inputs  
500  
500  
6
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Copyright © 2010, Texas Instruments Incorporated  
Product Folder Link(s): TCA9406  
TCA9406  
www.ti.com  
SCPS221 JULY 2010  
SWITCHING CHARACTERISTICS  
over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (unless otherwise noted)  
VCCB = 2.5 V  
± 0.2 V  
VCCB = 3.3 V  
± 0.3 V  
VCCB = 5 V  
± 0.5 V  
FROM  
(INPUT)  
TO  
(OUTPUT)  
PARAMETER  
TEST CONDITIONS  
UNIT  
MIN  
2.3  
45  
MAX  
5.3  
MIN  
2.4  
36  
MAX  
5.4  
9.6  
7.1  
208  
4.5  
4.4  
4.5  
140  
200  
40  
MIN  
2.6  
27  
MAX  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
6.8  
10  
tPHL  
tPLH  
tPHL  
tPLH  
8.8  
A
B
B
A
ns  
6.8  
7.5  
198  
4.7  
4
260  
4.4  
1.9  
45  
5.3  
1.1  
36  
1.2  
27  
ns  
5.3  
0.5  
102  
200  
35  
175  
200  
50  
ten  
OE  
OE  
A or B  
A or B  
ns  
ns  
tdis  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
3.2  
38  
4
9.5  
2.3  
30  
9.3  
132  
9.1  
106  
6
2
22  
2.7  
10  
1.7  
4.2  
2.8  
7
7.6  
95  
trA  
trB  
tfA  
A-port rise time  
ns  
ns  
165  
10.8  
145  
5.9  
2.7  
23  
7.6  
58  
B-port rise time  
A-port fall time  
34  
2
1.9  
4.3  
2.8  
7.5  
13.3  
6.1  
16.2  
16.2  
0.7  
4.4  
2.9  
6.9  
6.9  
6.4  
16.2  
16.2  
0.7  
ns  
13.8  
13.8  
0.7  
tfB  
B-port fall time  
tSK(O)  
Channel-to-channel skew  
ns  
Push-pull driving  
21  
2
22  
2
24  
2
Max data rate  
Mbps  
Open-drain driving  
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Product Folder Link(s): TCA9406  
TCA9406  
SCPS221 JULY 2010  
www.ti.com  
SWITCHING CHARACTERISTICS  
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (unless otherwise noted)  
VCCB = 2.5 V  
± 0.2 V  
VCCB = 3.3 V  
± 0.3 V  
VCCB = 5 V  
± 0.5 V  
FROM  
(INPUT)  
TO  
(OUTPUT)  
PARAMETER  
TEST CONDITIONS  
UNIT  
MIN  
1.7  
43  
MAX  
3.2  
6.3  
3.5  
250  
3
MIN  
MAX  
3.7  
6
MIN  
2.1  
27  
MAX  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
3.8  
tPHL  
tPLH  
tPHL  
tPLH  
2
5.8  
ns  
A
B
B
A
4.1  
206  
3.6  
4.2  
1.6  
140  
200  
40  
4.4  
36  
2.6  
37  
190  
4.3  
1.8  
44  
4.7  
2.5  
170  
200  
50  
1.2  
27  
4
ns  
1
103  
ten  
OE  
OE  
A or B  
A or B  
200  
35  
ns  
ns  
tdis  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
2.8  
34  
7.4  
149  
8.3  
151  
5.7  
6.9  
7.8  
8.8  
0.7  
2.6  
28  
6.6  
121  
7.2  
112  
5.5  
6.2  
6.7  
9.4  
0.7  
1.8  
24  
5.6  
89  
trA  
trB  
tfA  
A-port rise time  
ns  
ns  
ns  
3.2  
35  
2.9  
24  
2.4  
12  
6.1  
64  
B-port rise time  
A-port fall time  
1.9  
4.4  
2.2  
5.1  
1.9  
4.3  
2.4  
5.4  
1.8  
4.2  
2.6  
5.4  
5.3  
5.8  
6.6  
10.4  
0.7  
tfB  
B-port fall time  
ns  
ns  
tSK(O)  
Channel-to-channel skew  
Push-pull driving  
20  
2
22  
2
24  
2
Max data rate  
Mbps  
Open-drain driving  
8
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Copyright © 2010, Texas Instruments Incorporated  
Product Folder Link(s): TCA9406  
TCA9406  
www.ti.com  
SCPS221 JULY 2010  
SWITCHING CHARACTERISTICS  
over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (unless otherwise noted)  
VCCB = 3.3 V  
VCCB = 5 V  
± 0.5 V  
FROM  
(INPUT)  
TO  
(OUTPUT)  
± 0.3 V  
PARAMETER  
TEST CONDITIONS  
UNIT  
MIN  
1.3  
36  
1
MAX  
MIN  
1.4  
28  
1
MAX  
Push-pull driving  
2.4  
4.2  
4.2  
204  
2.5  
124  
2.5  
139  
200  
40  
3.1  
4.6  
4.4  
165  
3.3  
97  
tPHL  
tPLH  
tPHL  
tPLH  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
A
B
B
A
ns  
ns  
2.6  
105  
200  
35  
3
3
ten  
OE  
OE  
A or B  
A or B  
ns  
ns  
tdis  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
Push-pull driving  
Open-drain driving  
2.3  
25  
2.5  
26  
2
5.6  
116  
6.4  
116  
5.4  
6.1  
7.4  
7.6  
0.7  
1.9  
19  
4.8  
85  
trA  
trB  
tfA  
A-port rise time  
ns  
ns  
ns  
2.1  
14  
7.4  
72  
B-port rise time  
A-port fall time  
1.9  
4.2  
2.4  
4.8  
5
4.3  
2.3  
5
5.7  
7.6  
8.3  
0.7  
tfB  
B-port fall time  
ns  
ns  
tSK(O)  
Channel-to-channel skew  
Push-pull driving  
23  
2
24  
2
Max data rate  
Mbps  
Open-drain driving  
Copyright © 2010, Texas Instruments Incorporated  
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9
Product Folder Link(s): TCA9406  
TCA9406  
SCPS221 JULY 2010  
www.ti.com  
PRINCIPLES OF OPERATION  
Application Notes  
The TCA9406 A-Port I/O has open-drain outputs with an internal 10-kΩ pullup resistor to VCCA, and B-Port I/O  
has an internal 10-kΩ pullup resistor to VCCB. If a smaller value of pullup resistor is required, an external resistor  
must be added from the I/O to VCCA or VCCB (in parallel with the internal 10-kΩ resistors). Adding lower value  
pullup resistors changes VOL levels. When the OE pin is set low, the internal pullups of the TCA9406 are  
disabled for power saving caused by pullup resistors.  
Figure 1. Typical Design Example  
The TCA6406 has a VCC isolation feature known as Ioff partial power down and backdrive protection. If a cable is  
connected, and the connected external system is still powered own, the system can be put into standby mode by  
shutting down the power rail. In this state, the TCA6406 has a leakage current of approximately 2 µA caused by  
current flow from powered-on system.  
Power Up, Power Down  
One advantage of the TCA9406 translator is that either power supply can be ramped up first. Another advantage  
is that either power supply can be set to 0 V, and the outputs are in high-impedance state.  
The recommended power up sequence is:  
1. Apply power to the first VCC and apply the second VCC  
2. Drive the OE input high to enable the device  
The recommended power down sequence is:  
1. Drive OE input low to disable the device  
2. Switch Off the power from either VCC and remove power from other VCC  
.
Enable/Disable  
The TCA9406 han an OE input that is used to disable the device by setting OE low, which place all I/Os in the  
high-impedance state. The control OE is referenced to the VCCA supply. A pulldown resistor tying OE to ground  
should be used to ensure that bus contention, excessive currents, or oscillations do not occur during power up  
and power down. The value of resistor is based upon the current sinking capability of the device.  
10  
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Copyright © 2010, Texas Instruments Incorporated  
Product Folder Link(s): TCA9406  
TCA9406  
www.ti.com  
SCPS221 JULY 2010  
Integrated Pullup Resistors on the I/Os (A-Ports/B-Ports)  
Each A-port I/O has an internal 10-kΩ pullup resistor to VCCA, and each B-port I/O has an internal 10-kΩ pullup  
resistor to VCCB. If a smaller value of pullup resistor is required, an external resistor must be added from the I/O  
to VCCA or VCCB (in parallel with the internal 10-kΩ resistors). Adding lower value pull-up resistors may effect VOL  
levels, however. The internal pullups of the PCA9406 are disabled when the OE pin is low.  
Copyright © 2010, Texas Instruments Incorporated  
Submit Documentation Feedback  
11  
Product Folder Link(s): TCA9406  
TCA9406  
SCPS221 JULY 2010  
www.ti.com  
PARAMETER MEASUREMENT INFORMATION  
V
CCI  
V
CCO  
V
CCI  
V
CCO  
DUT  
DUT  
IN  
IN  
OUT  
OUT  
1 MW  
1 MW  
15 pF  
15 pF  
DATA RATE, PULSE DURATION, PROPAGATION DELAY,  
OUTPUT RISE AND FALL TIME MEASUREMENT USING  
AN OPEN-DRAIN DRIVER  
DATA RATE, PULSE DURATION, PROPAGATION DELAY,  
OUTPUT RISE AND FALL TIME MEASUREMENT USING  
A PUSH-PULL DRIVER  
2 × V  
CCO  
S1  
50 kW  
Open  
From Output  
Under Test  
15 pF  
50 kW  
TEST  
/t  
S1  
2 × V  
t
PZL PLZ  
CCO  
LOAD CIRCUIT FOR ENABLE/DISABLE  
TIME MEASUREMENT  
t
/t  
Open  
PHZ PZH  
t
w
V
CCI  
V
CCA  
V
/2  
V
/2  
Output  
Control  
(low-level  
enabling)  
Input  
CCI  
CCI  
V /2  
CCA  
V /2  
CCA  
0 V  
VOLTAGE WAVEFORMS  
PULSE DURATION  
0 V  
t
PLZ  
t
PZL  
V
V
CCO  
Output  
Waveform 1  
V
CCI  
V
V
/2  
CCO  
Input  
V
/2  
/2  
V
/2  
CCI  
CCI  
0.1 y V  
CCO  
S1 at 2 × V  
CCO  
OL  
0 V  
(see Note B)  
t
PHZ  
t
t
t
PLH  
PHL  
PZH  
Output  
Waveform 2  
S1 at GND  
V
OH  
0.9 y V  
V
OH  
CCO  
0.9 y V  
CCO  
/2  
Output  
V
CCO  
V
CCO  
/2  
CCO  
(see Note B)  
0.1 y V  
CCO  
0 V  
V
OL  
t
f
t
r
VOLTAGE WAVEFORMS  
PROPAGATION DELAY TIMES  
VOLTAGE WAVEFORMS  
ENABLE AND DISABLE TIMES  
A.  
C
L
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: PRRv10 MHz, Z = 50 , dv/dt 1 V/ns.  
O
D. The outputs are measured one at a time, with one transition per measurement.  
E.  
F.  
G.  
H.  
I.  
t
t
t
V
V
and t  
and t  
and t  
are the same as t  
.
dis  
.
PLZ  
PZL  
PLH  
PHZ  
are the same as t  
PZH  
en  
are the same as t .  
pd  
PHL  
is the V associated with the input port.  
CC  
CCI  
is the V associated with the output port.  
CCO  
CC  
J. All parameters and waveforms are not applicable to all devices.  
Figure 2. Load Circuit and Voltage Waveforms  
12  
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Copyright © 2010, Texas Instruments Incorporated  
Product Folder Link(s): TCA9406  
PACKAGE OPTION ADDENDUM  
www.ti.com  
24-Dec-2010  
PACKAGING INFORMATION  
Status (1)  
Eco Plan (2)  
MSL Peak Temp (3)  
Samples  
Orderable Device  
Package Type Package  
Drawing  
Pins  
Package Qty  
Lead/  
Ball Finish  
(Requires Login)  
TCA9406DCTR  
TCA9406DCUR  
TCA9406YZPR  
ACTIVE  
ACTIVE  
SM8  
US8  
DCT  
DCU  
YZP  
8
8
8
3000  
3000  
3000  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
Purchase Samples  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
Purchase Samples  
PREVIEW  
DSBGA  
TBD  
Call TI  
Call TI  
Samples Not Available  
(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  
3-Feb-2011  
TAPE AND REEL INFORMATION  
*All dimensions are nominal  
Device  
Package Package Pins  
Type Drawing  
SPQ  
Reel  
Reel  
A0  
B0  
K0  
P1  
W
Pin1  
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant  
(mm) W1 (mm)  
TCA9406DCTR  
TCA9406DCUR  
SM8  
US8  
DCT  
DCU  
8
8
3000  
3000  
180.0  
180.0  
13.0  
8.4  
3.35  
2.25  
4.5  
1.55  
1.05  
4.0  
4.0  
12.0  
8.0  
Q3  
Q3  
3.35  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
3-Feb-2011  
*All dimensions are nominal  
Device  
Package Type Package Drawing Pins  
SPQ  
Length (mm) Width (mm) Height (mm)  
TCA9406DCTR  
TCA9406DCUR  
SM8  
US8  
DCT  
DCU  
8
8
3000  
3000  
182.0  
202.0  
182.0  
201.0  
20.0  
28.0  
Pack Materials-Page 2  
MECHANICAL DATA  
MPDS049B – MAY 1999 – REVISED OCTOBER 2002  
DCT (R-PDSO-G8)  
PLASTIC SMALL-OUTLINE PACKAGE  
0,30  
0,15  
M
0,13  
0,65  
8
5
0,15 NOM  
2,90  
2,70  
4,25  
3,75  
Gage Plane  
PIN 1  
INDEX AREA  
0,25  
1
4
0° – 8°  
0,60  
0,20  
3,15  
2,75  
1,30 MAX  
Seating Plane  
0,10  
0,10  
0,00  
4188781/C 09/02  
NOTES: A. All linear dimensions are in millimeters.  
B. This drawing is subject to change without notice.  
C. Body dimensions do not include mold flash or protrusion  
D. Falls within JEDEC MO-187 variation DA.  
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