BQ29330 Datasheet, PDF (10/26 Pages) Texas Instruments – 2-,3-,AND 4-CELL LITHIUM-ION OR LITHIUM-POLYMER BATTERY PROTECTION AFE

bq29330
SLUS673A – SEPTEMBER 2005 – REVISED DECEMBER 2005
AC TIMING REQUIREMENTS (I²C compatible serial interface)
T_A = 25°C, CREG = 1 µF, VCC or BAT = 14 V (unless otherwise noted)
PARAMETER
t_r
t_f
t_w(H)
t_w(L)
t_su(STA)
t_h(STA)
t_su(DAT)
t_h(DAT)
t_su(STOP)
t_su(BUF)
t_v
t_h(CH)
f_SCL
SCLK, SDATA rise time
SCLK, SDATA fall time
SCLK pulse width high
SCLK pulse width low
Setup time for start condition
Start condition hold time after which first clock pulse is generated
Data setup time
Data hold time
Setup time for Stop condition
Time the bus must be free before new transmission can start
Clock low to data out valid
Data out hold time after clock low
Clock frequency
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MIN
MAX UNIT
1000 ns
300 ns
4
µs
4.7
µs
4.7
µs
4
µs
250
ns
0
µs
4
µs
4.7
µs
900 ns
10
ns
0
400 kHz
t_su(STA)
SCLK
t_w(H)
SDATA
Start
Condition
t_h(STA)
SDA
Input
t_h(DAT)
t_w(L)
t_f
t_r
t_r
t_f
SDA
Change
t_su(DAT)
Stop
Condition
t_h(ch)
SCLK
SDATA
SCLK
SDATA
1
2
3
MSB
Start Condition
1
2
3
MSB
7
8
9
t_v
7
ACK
t_su(STOP)
8
9
ACK
Stop Condition
t_su(BUF)
10