ADP5587ACBZ-R7 datasheet(4/24 Pages) AD

4 / 24 page

ADP5587

Data Sheet

Rev. E | Page 4 of 24

AC CHARACTERISTICS

Table 4. General AC Characteristics1

Parameter

Symbol

Min

Typ

Max

Unit

Delay from Reset Deassertion to I2C Access

RSTD

μs

Keypad Unlock Timer

TKUT

sec

Keypad Interrupt Mask Timer

TKIMT

sec

Debounce

275

μs

1 Guaranteed by design.

Table 5. I2C AC Electrical Characteristics1

Parameter

Symbol

Min

Typ

Max

Unit

SCL Clock Frequency

fSCL

400

kHz

SCL High Time

tHIGH

0.6

μs

SCL Low Time

tLOW

1.3

μs

Data Setup Time

tSU, DAT

100

Data Hold Time

tHD, DAT

0.9

μs

Setup Time for Repeated Start

tSU, STA

0.6

μs

Hold Time for Start/Repeated Start

tHD, STA

0.6

μs

Bus Free Time for Stop and Start

tBUF

1.3

μs

Setup Time for Stop Condition

tSU, STO

0.6

μs

Rise Time for SCL and SDA2

20 + 0.1 CB

300

Fall Time for SCL and SDA2

20 + 0.1 CB

300

Pulse Width of Suppressed Spike

tSP

μs

1 Guaranteed by design.

2 tR and tF are measured between 0.3 × VCC and 0.7 × VCC.

SDA

SCL

S = START CONDITION

Sr = REPEATED START CONDITION

P = STOP CONDITION

tLOW

tHD, DAT

tHIGH

tSU, DAT

tSU, STA

tHD, STA

tSP

tSU, STO

tBUF

Figure 2. I2C Interface Timing Diagram

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