Datasheet

bq2060A
www.ti.com SLUS500D –OCTOBER 2001– REVISED OCTOBER 2011
SMBus AC SPECIFICATIONS
V
CC
= 2.7 V to 3.7 V, T
OPR
= –20°C to 70°C, unless otherwise noted
SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
f
SMB
SMBus operating frequency Slave mode, SMBC 50% duty cycle 10 100 kHz
Master mode, no clock low slave
f
MAS
SMBus master clock frequency 51.2 kHz
extend
t
BUF
Bus free time between start and stop 4.7 µs
t
HD:STA
Hold time after (repeated) start 4 µs
t
SU:STA
Repeated start setup time 4.7 µs
t
SU:STO
Stop setup time 4 µs
Receive mode 0 ns
t
HD:DAT
Data hold time
Transmit mode 300 ns
t
SU:DAT
Data setup time 250 ns
t
TIMEOUT
Error signal/detect See
(1)
25 35 ms
t
LOW
Clock low period 4.7 µs
t
HIGH
Clock high period See
(2)
4 50 µs
t
LOW:SEXT
Cumulative clock low slave extend time See
(3)
25 ms
t
LOW:MEXT
Cumulative clock low master extend time See
(4)
10 ms
(1) The bq2060A times out when any clock low exceeds TTIMEOUT.
(2) THIGH Max. is minimum bus idle time. SMBC = 1 for t > 50 ms causes reset of any transaction involving bq2060A that is in progress.
(3) TLOW:SEXT is the cumulative time a slave device is allowed to extend the clock cycles in one message from initial start to the stop.
The bq2060A typically extends the clock only 20 ms as a slave in the read byte or write byte protocol.
(4) TLOW:MEXT is the cumulative time a master device is allowed to extend the clock cycles in one message from initial start to the stop.
The bq2060A typically extends the clock only 20 ms as a master in the read byte or write byte protocol.
HDQ16 AC SPECIFICATIONS
V
CC
= 2.7 V to 3.7 V, T
OPR
= –20°C to 70°C, unless otherwise noted
SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
CYCH
Cycle time, host to bq2060A (write) 190 µs
t
CYCB
Cycle time, bq2060A to host (read) 190 205 250 µs
t
STRH
Start hold time, host to bq2060A(write) 5 — — ns
tSTRB Start hold time, bq2060A to host (read) 32 — — µs
DSU Data setup time — — 50 µs
t
DSUB
Data setup time — — 50 µs
t
DH
Data hold time 100 — — µs
t
DV
Data valid time 80 — — µs
t
SSU
Stop setup time — — 145 µs
t
SSUB
Stop setup time — — 145 µs
t
RSPS
Response time, bq2060A to host 190 — 320 µs
t
]
Break time 190 — — µs
t
BR
Break recovery time 40 — — µs
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