BQ27505-J4 Datasheet, PDF (7/38 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge

www.ti.com
bq27505-J4
SLVSA40 – DECEMBER 2009
3.10 400 kHz I²C-COMPATIBLE INTERFACE COMMUNICATION TIMING
CHARACTERISTICS
T_A = –40°C to 85°C, 2.4 V < V_CC < 2.6 V; typical values at T_A = 25°C and V_CC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX
t_r
t_f
t_w(H)
t_w(L)
t_su(STA)
t_d(STA)
t_su(DAT)
t_h(DAT)
t_su(STOP)
t_(BUF)
f_SCL
SCL/SDA rise time
SCL/SDA fall time
SCL pulse duration (high)
SCL pulse duration (low)
Setup for repeated start
Start to first falling edge of SCL
Data setup time
Data hold time
Setup time for stop
Bus free time between stop and start
Clock frequency
300
300
600
1.3
600
600
100
0
600
1.3
400
UNIT
ns
ns
ns
μs
ns
ns
ns
ns
ns
μs
kHz
3.11 100 kHz I²C-COMPATIBLE INTERFACE COMMUNICATION TIMING
CHARACTERISTICS
T_A = –40°C to 85°C, 2.4 V < V_CC < 2.6 V; typical values at T_A = 25°C and V_CC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX
t_r
t_f
t_w(H)
t_w(L)
t_su(STA)
t_d(STA)
t_su(DAT)
t_h(DAT)
t_su(STOP)
t_(BUF)
f_SCL
SCL/SDA rise time
SCL/SDA fall time
SCL pulse duration (high)
SCL pulse duration (low)
Setup for repeated start
Start to first falling edge of SCL
Data setup time
Data hold time
Setup time for stop
Bus free time between stop and start
Clock frequency
1
300
4
4.7
4.7
4
250
0
4
4.7
100
UNIT
µs
ns
µs
μs
µs
µs
ns
ns
µs
μs
kHz
Figure 3-1. I²C-Compatible Interface Timing Diagrams
Copyright © 2009, Texas Instruments Incorporated
Submit Documentation Feedback
ELECTRICAL SPECIFICATIONS
7