Digitally Controlled

Fuel-Gauge Interface

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5

SCL

START

CONDITION

SDA

MOST SIGNIFICANT ADDRESS BIT

(A6) CLOCKED INTO SLAVE

A5 CLOCKED

INTO SLAVE

A4 CLOCKED

INTO SLAVE

A3 CLOCKED

INTO SLAVE

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.

CONDITIONS

µs

1

SCL Falling Edge to SDA Valid, Master

Clocking in Data

ns

0

SCL Falling Edge to SDA Transition

ns

800

SDA Valid to SCL Rising-Edge Setup

Time, Slave Clocking in Data

µs

4

START Condition Hold Time

µs

4.7

START Condition Setup Time

µs

4.7

SCL Serial-Clock Low Period

µs

4

SCL Serial-Clock High Period

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

TIMING CHARACTERISTICS

Figure 1. SMBus Serial-Interface Timing—Address

SCL

RW BIT

CLOCKED

INTO SLAVE

SDA

ACKNOWLEDGE

BIT CLOCKED

INTO MASTER

SLAVE PULLING

SDA LOW

MOST SIGNIFICANT BIT

OF DATA CLOCKED

INTO MASTER

Figure 2. SMBus Serial-Interface Timing—Acknowledge