Datasheet

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Switching Characteristics
PCF8574A
REMOTE 8-BIT I/O EXPANDER FOR I
2
C BUS
SCPS069D – JULY 2001 – REVISED OCTOBER 2005
over recommended operating free-air temperature range, C
L
≤ 100 pF (unless otherwise noted) (see Figure 2 )
FROM TO
PARAMETER MIN MAX UNIT
(INPUT) (OUTPUT)
t
pv
Output data valid SCL P port 4 µ s
t
su
Input data setup time P port SCL 0 µ s
t
h
Input data hold time P port SCL 4 µ s
t
iv
Interrupt valid time P port INT 4 µ s
t
ir
Interrupt reset delay time SCL INT 4 µ s
6