BQ2052_15 Datasheet, PDF (15/20 Pages) Texas Instruments – Gas Gauge IC

Not Recommended For New Designs
Preliminary bq2052
Serial Communication Timing Specification (TA = TOPR)
Symbol
tCYCH
tCYCB
tSTRH
tSTRB
tDSU
tDSUB
tDH
tDV
tSSU
tSSUB
tRSPS
tB
tBR
Parameter
Cycle time, host to bq2052 (write)
Cycle time, bq2052 to host (read)
Start hold, host to bq2052 (write)
Start hold, bq2052 to host (read)
Data setup
Data setup
Data hold
Data valid
Stop setup
Stop setup
Response time, bq2052 to host
Break
Break recovery
Minimum Typical Maximum Unit
190
-
-
µs
190
205
250
µs
5
-
-
ns
32
-
-
µs
-
-
50
µs
-
-
50
µs
90
-
-
µs
-
-
80
µs
-
-
145
µs
-
-
145
µs
190
-
320
µs
190
-
-
µs
40
-
-
µs
Notes
See note
Note:
The open-drain HDQ pin should be pulled to at least V_CC by the host system for proper HDQ operation.
HDQ may be left floating if the serial interface is not used.
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