pca9555bs NXP Semiconductors, pca9555bs Datasheet - Page 19

• Manufacturer Part Number: pca9555bs
• Description: 16-bit I2c And Smbus I/o Port With Interrupt
• Manufacturer: NXP Semiconductors

NXP Semiconductors
[2]
[3]
PCA9555_7
Product data sheet
Fig 20. V
Fig 22. I
Each I/O must be externally limited to a maximum of 25 mA and each octal (IO0_0 to IO0_7 and IO1_0 to IO1_7) must be limited to a
maximum current of 100 mA for a device total of 200 mA.
The total current sourced by all I/Os must be limited to 160 mA.
V
(1) I
(2) I
(1) T
(2) T
(3) T
(V)
OH
6.0
5.0
4.0
3.0
2.0
V
2.7
OH
OH
DD
amb
amb
amb
DD
OH
= 8 mA
= 10 mA
versus number of I/Os held LOW
= 5.5 V; V
maximum
= 40 C
= +25 C
= +85 C
(1)
(2)
I/O
= 5.5 V; A2, A1, A0 set to logic 0.
3.6
(mA)
I
DD
1.6
1.2
0.8
0.4
0
V
002aac706
DD
all 1s
(V)
5.5
Rev. 07 — 5 June 2007
one 0
Fig 21. V
three 0s
16-bit I
V
(1) I
(2) I
(V)
OH
4.5
3.5
2.5
1.5
number of I/Os
2.3
OH
OH
OH
002aac705
= 8 mA
= 10 mA
all 0s
2
minimum
C-bus and SMBus I/O port with interrupt
(1)
(2)
(3)
3.0
PCA9555
© NXP B.V. 2007. All rights reserved.
(1)
(2)
V
002aac707
DD
(V)
4.75
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