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TCA9800 Datasheet(PDF) 9 Page - Texas Instruments

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Part # TCA9800
Description  Level-Translating I2C Bus Buffer/Repeater
Download  36 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TCA9800 Datasheet(HTML) 9 Page - Texas Instruments

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VCCB
SDAA
SCLA
UVLOB
(Max)
tstartup
1) VCCA is powered, SDAB/SCLB are connected to GND
0.9 VCCA
SDAB
SCLB
EN
0.7 VCCB
0.5 VCCA
0.5 VCCA
1) VCCA is powered, SDAA/SCLA are connected to GND
0.3 VCCB
B Side
0.7 VCCB
0.3 VCCB
tf:B
tPLH:AB
tPHL:BA
tf:A
tPLH:BA
tr:A
tr:B
0.7 VCCA
0.3 VCCA
A Side
0.3 VCCA
0.7 VCCA
0.3 VCCB
0.7 VCCB
External
pull-down
(B-side)
VOL
(1)
VOL
(2)
VOL
(3)
1) The VOL of only the external device, pulling down on the bus
2) The VOL of both the external device and the TCA980x translator
3) The VOL of only the TCA980x, after the external device releases
On
Off
Off
A Side
0.7 VCCA
0.3 VCCA
tf:B
tPLH:AB
tPHL:AB
tf:A
tr:A
tr:B
0.7 VCCB
0.3 VCCB
B Side
0.3 VCCA
0.7 VCCA
0.3 VCCB
0.7 VCCB
External
pull-down
(A-side)
On
Off
Off
9
TCA9800
www.ti.com
SCPS264 – MARCH 2017
Product Folder Links: TCA9800
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
8 Parameter Measurement Information
Figure 9. Propagation Delay and Transition Times
for A-Side to B-Side
Figure 10. Propagation Delay for B-Side to A-Side
Figure 11. Startup Time (tstartup)
Figure 12. Enable and Disable Time (ten, and tdis)


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