ADP1655 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADP1655

Dual LED Flash Driver with I2C-Compatible Interface

Analog Devices 

I2C-COMPATIBLE INTERFACE TIMING SPECIFICATIONS

Table 3.

Parameter1

fSCL

tHIGH

tLOW

tSU, DAT

tHD, DAT

tSU, STA

tHD, STA

tBUF

tSU, STO

tR

tF

tSP

CB

Min

0.6

1.3

100

0

0.6

0.6

1.3

0.6

20 + 0.1 CB2

20 + 0.1 CB

0

Max

Unit

Description

400

kHz

SCL clock frequency

μs

SCL high time

μs

SCL low time

ns

Data setup time

0.9

μs

Data hold time

μs

Setup time for repeated start

μs

Hold time for start/repeated start

μs

Bus free time between a stop and a start condition

μs

Setup time for stop condition

300

ns

Rise time of SCL and SDA

300

ns

Fall time of SCL and SDA

50

ns

Pulse width of suppressed spike

400

pF

Capacitive load for each bus line

1 Guaranteed by design.

2 CB is the total capacitance of one bus line in picofarads.

ADP1655

SDA

tLOW

tR

tSU, DAT

tF

tF

tHD, STA

SCL

S

tHD, DAT

tHIGH

tSU, STA

Sr

S = START CONDITION

Sr = REPEATED START CONDITION

P = STOP CONDITION

Figure 3. I2C-Compatible Interface Timing Diagram

tSP

tR

tBUF

tSU, STO

P

S

Rev. 0 | Page 5 of 24

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