BQ27425-G2_14 Datasheet, PDF (6/35 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated Sense Resistor

bq27425-G2
SLUSB23A – OCTOBER 2012 – REVISED FEBRUARY 2013
EEPROM MEMORY CHARACTERISTICS
T_A = –40°C to 85°C; typical values at T_A = 25°C and V_REGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
Array Size
Data retention⁽¹⁾
Programming write cycles⁽¹⁾
10
100K
(1) Specified by design. Not production tested
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TYP
MAX UNIT
256
Bytes
Years
Cycles
I²C-COMPATIBLE INTERFACE COMMUNICATION TIMING CHARACTERISTICS
T_A = –40°C to 85°C; typical values at T_A = 25°C and V_REGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
t_r
SCL/SDA rise time
t_f
SCL/SDA fall time
t_w(H)
SCL pulse duration (high)
600
t_w(L)
SCL pulse duration (low)
1.3
t_su(STA)
Setup for repeated start
600
t_d(STA)
Start to first falling edge of SCL
600
t_su(DAT)
Data setup time
100
t_h(DAT)
Data hold time
0
t_su(STOP)
Setup time for stop
600
t_(BUF)
Bus free time between stop and
66
start
f_SCL
Clock frequency⁽¹⁾
TYP
MAX UNIT
300 ns
300 ns
ns
μs
ns
ns
ns
ns
ns
μs
400 kHz
(1) If the clock frequency (f_SCL) is > 100 kHz, use 1-byte write commands for proper operation. All other transactions types are supported at
400 kHz. (Refer to I²C INTERFACE and I²C Command Waiting Time)
t_SU(STA)
t_w(H)
t_w(L)
t_f
t_r
t_(BUF)
SCL
SDA
t_d(STA)
t_f
t_r
t_h(DAT)
t_su(DAT)
t_su(STOP)
REPEATED
START
STOP
START
Figure 1. I²C-Compatible Interface Timing Diagrams
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