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BQ2012 Datasheet(PDF) 18 Page - Texas Instruments

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Part # BQ2012
Description  Gas Gauge IC With Slow-Charge Control
PDF  20 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ2012 Datasheet(HTML) 18 Page - Texas Instruments

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18
bq2012
Serial Communication Timing Specification
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Notes
tCYCH
Cycle time, host to bq2012
3
-
-
ms
See note
tCYCB
Cycle time, bq2012 to host
3
-
6
ms
tSTRH
Start hold, host to bq2012
5
-
-
ns
tSTRB
Start hold, bq2012 to host
500
-
-
µs
tDSU
Data setup
-
-
750
µs
tDH
Data hold
750
-
-
µs
tDV
Data valid
1.50
-
-
ms
tSSU
Stop setup
-
-
2.25
ms
tSH
Stop hold
700
-
-
µs
tSV
Stop valid
2.95
-
-
ms
tB
Break
3
-
-
ms
tBR
Break recovery
1
-
-
ms
Note:
The open-drain DQ pin should be pulled to at least VCC by the host system for proper DQ operation.
DQ may be left floating if the serial interface is not used.
TD201002.eps
DQ
(R/W "1")
tSTRH
tSTRB
tDSU
tDH
tDV
tSV
tSSU
tSH
tCYCH, tCYCB, tB
tBR
DQ
(R/W "0")
DQ
(BREAK)
Serial Communication Timing Illustration



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