www.ti.com

Electrical Characteristics

PCF8574A

SCPS069D – JULY 2001 – REVISED OCTOBER 2005

over recommended operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MAX

UNIT

Input diode clamp voltage

2.5 V to 6 V

–1.2

V

6 V

1.3

2.4

V

P port

2.5 V to 6 V

30

300

µA

P-port transient pullup current

2.5 V

–1

mA

SDA

2.5 V to 6 V

3

P port

5 V

10

25

mA

INT

2.5 V to 6 V

1.6

SCL, SDA

±5

INT

2.5 V to 6 V

±5

µA

A0, A1, A2

±5

P port

2.5 V to 6 V

±400

µA

Operating mode

40

100

6 V

µA

Standby mode

2.5

10

SCL

2.5 V to 6 V

1.5

7

pF

SDA

3

7

2.5 V to 6 V

pF

P port

4

10

(1)

(2)

over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)

MIN

MAX

UNIT

100

kHz

4

µs

4.7

µs

100

ns

250

ns

0

ns

1

µs

0.3

µs

300

ns

4.7

µs

4.7

µs

4

µs

4

µs

Valid-data time

SCL low to SDA output valid

3.4

µs

400

pF

5