PCF8575C 查看數據表（PDF） - Philips Electronics

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PCF8575C

Remote 16-bit I/O expander for I2C-bus

Philips Electronics 

Philips Semiconductors

Remote 16-bit I/O expander for I2C-bus

Product specification

PCF8575C

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX. UNIT

IL

leakage current at all pins

VI = VDD or VSS

−2

−

IIHL

current through protection diode

VI > VDD or VI < VSS;

−

−

note 2

+2

µA

±2

mA

Input SCL; input/output SDA

IOL

LOW-level output current

CI

input capacitance

VOL = 0.4 V; note 3

3

−

−

mA

VI = VSS; note 2

−

−

7

pF

I/Os; P00 to P07 and P10 to P17

IOL

LOW-level output current

VOL = 1 V; note 3

10

25

−

mA

IOHt

transient pull-up current

VOH = VSS; see Fig.5

−0.5

−1.0

−

mA

CI

input capacitance

note 2

−

−

10

pF

CO

output capacitance

note 2

−

−

10

pF

Port timing; CL ≤ 100 pF (see Figs 5 and 6)

tpv

output data valid

tsu

input data set-up time

th

input data hold time

Interrupt INT (see Fig.13)

−

−

4

µs

0

−

−

µs

4

−

−

µs

IOL

LOW-level output current

TIMING; CL ≤ 100 PF (see Figs 5 and 6)

tiv

input data valid time

tir

reset delay time

VOL = 0.4 V

1.6

−

−

mA

−

−

4

µs

−

−

4

µs

Notes

1. The Power-on reset circuit resets the I2C-bus logic with VDD < VPOR and sets all I/Os to logic 1 (with current source

to VDD).

2. The value is not tested, but verified on sampling basis.

3. A single LOW-level output current (IOL) must not exceed 20 mA for an extended time. The sum of all IOLs at any point

in time must not exceed 100 mA.

1999 Aug 05

14

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