BQ26231_15 Datasheet, PDF (4/23 Pages) Texas Instruments – EMBEDDED PORTABLE APPLICATIONS

bq26231
Not Recommended for New Designs
SLUS491 – JULY 2001
standard serial communication timing specification over recommended operating temperature
and supply voltage, refer to Figure 1 (unless otherwise noted)
t(CYCH)
t(CYCB)
t(STRH)
t(STRB)
t(DSU)
t(DSUB)
t(DH)
t(DV)
t(SSUB)
t(SSU)
t(B)
t(BR)
t(RSPS)
PARAMETER
Cycle time, host to bq26231 (write)
Cycle time, bq26231 to host (read)
Start hold, host to bq26231 (write)
Start hold, bq26231 to host (read)
Data setup (write)
Data setup (read)
Data hold
Data valid
Stop setup (bq26231 to host)
Stop setup (host to bq26231)
Break
Break recovery
Response time, bq26231 to host
TEST CONDITIONS
MIN TYP MAX UNIT
190
µs
190 205 250 µs
5
ns
32
µs
50 µs
50 µs
100
µs
80
µs
145 µs
145 µs
190
µs
40
µs
190
320 µs
t(B)
Write 1
Write 0
t(STRH)
t(DSU)
t(DH)
t(SSU)
t(CYCH)
Read 1
Read 0
t(STRB)
t(DSUB)
t(DV)
t(SSUB)
t(CYCB)
Figure 1. Standard Serial Communication Timing Diagram
t(BR)
4
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