BQ2014H_15 Datasheet, PDF (19/28 Pages) Texas Instruments – Low-Cost NiCd/NiMH Gas Gauge IC

bq2014H
High-Speed Serial Communication Timing Specification (TA = TOPR)
Symbol
t_CYCH
t_CYCB
t_STRH
t_STRB
t_DSU
t_DSUB
tDH
t_DV
t_SSU
t_SSUB
t_RSPS
tB
t_BR
Parameter
Cycle time, host to bq2014H (write)
Cycle time, bq2014H to host (read)
Start hold, host to bq2014H (write)
Start hold, bq2014H to host (read)
Data setup
Data setup
Data hold
Data valid
Stop setup
Stop setup
Response time, bq2014H to host
Break
Break recovery
Minimum
190
190
5
32
-
-
90
-
-
-
190
190
40
Typical
-
205
-
-
-
-
-
-
-
-
-
-
-
Maximum
-
250
-
-
50
50
-
80
145
145
320
-
-
Unit
µs
µs
ns
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
Notes
See note
Note:
The open-drain HDQ pin should be pulled to at least VCC by the host system for proper HDQ operation.
HDQ may be left floating if the serial interface is not used.
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