MAX1660 Datasheet, PDF (5/20 Pages) Maxim Integrated Products – Digitally Controlled Fuel-Gauge Interface

Digitally Controlled
Fuel-Gauge Interface
TIMING CHARACTERISTICS
(T_A = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
SCL Serial-Clock High Period
SCL Serial-Clock Low Period
Start-Condition Setup Time
Start-Condition Hold Time
t_HIGH
t_LOW
t_SU:STA
t_HD:STA
SDA Valid to SCL Rising-Edge Setup
Time, Slave Clocking in Data
t_SU:DAT
SCL Falling Edge to SDA Transition
t_HD:DAT
SCL Falling Edge to SDA Valid, Master
Clocking in Data
t_DV
CONDITIONS
MIN TYP MAX UNITS
4
µs
4.7
µs
4.7
µs
4
µs
800
ns
0
ns
1
µs
Note 1: OCI and ODI are MOSFET inputs. Minimum and maximum limits are for production screening only. Actual performance is
indicated in typical value.
Note 2: Specifications to -40°C are guaranteed by design, not production tested.
START
CONDITION
MOST SIGNIFICANT ADDRESS BIT
(A6) CLOCKED INTO SLAVE
A5 CLOCKED
INTO SLAVE
A4 CLOCKED
INTO SLAVE
A3 CLOCKED
INTO SLAVE
SCL
t_LOW
t_HD:STA
SDA
t_HIGH
t_SU:STA
t_SU:DAT
Figure 1. SMBus Serial-Interface Timing—Address
t_HD:DAT
RW BIT
CLOCKED
INTO SLAVE
ACKNOWLEDGE
BIT CLOCKED
INTO MASTER
t_SU:DAT
t_HD:DAT
MOST SIGNIFICANT BIT
OF DATA CLOCKED
INTO MASTER
SCL
SDA
SLAVE PULLING
SDA LOW
t_DV
t_DV
Figure 2. SMBus Serial-Interface Timing—Acknowledge
*Patent pending
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