PCA9554PW-T データシートの表示（PDF） - NXP Semiconductors.
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PCA9554PW-T Datasheet PDF : 35 Pages
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NXP Semiconductors
PCA9554; PCA9554A
8-bit I2C-bus and SMBus I/O port with interrupt
7. Application design-in information
VDD (5 V)
VDD
MASTER
CONTROLLER
SCL
SDA
INT
VSS
10 kΩ
10 kΩ
10 kΩ
10 kΩ
2 kΩ
VDD
PCA9554
SCL
IO0
SDA
IO1
IO2
INT
IO3
IO4
IO5
IO6
IO7
A2
A1
A0
VSS
Device address configured as 0100 100X for this example.
IO0, IO1, IO2 configured as outputs.
IO3, IO4, IO5 configured as inputs.
IO6 and IO7 are not used and must be configured as outputs.
Fig 15. Typical application
SUBSYSTEM 1
(e.g., temp. sensor)
INT
RESET
SUBSYSTEM 2
(e.g., counter)
A
enable
controlled switch
(e.g., CBT device)
B
ALARM
SUBSYSTEM 3
(e.g., alarm system)
VDD
002aac496
8. Limiting values
Table 9. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
Conditions
Min
VDD
II
VI/O
IO(IOn)
IDD
ISS
Ptot
Tstg
Tamb
supply voltage
input current
voltage on an input/output pin
output current on pin IOn
supply current
ground supply current
total power dissipation
storage temperature
ambient temperature
operating
0.5
-
VSS 0.5
-
-
-
-
65
40
Max
+6.0
20
5.5
50
85
100
200
+150
+85
Unit
V
mA
V
mA
mA
mA
mW
C
C
PCA9554_9554A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 9 — 19 March 2013
© NXP B.V. 2013. All rights reserved.
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