PCA9501 Datasheet, PDF (14/28 Pages) NXP Semiconductors – 8-bit I2C and SMBus I/O port with interrupt, 2-kbit EEPROM and 6 address pins

NXP Semiconductors
PCA9501
8-bit I²C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM
V_DD
V_DD
MASTER
CONTROLLER
SCL
SDA
INT
V_SS
10 kΩ
10 kΩ
10 kΩ
10 kΩ
(optional)
V_DD
PCA9501
SCL
IO0
SDA
IO1
INT
IO2
A5
IO3
A4
IO4
A3
IO5
A2
A1
IO6
A0
IO7
V_SS
SUB-SYSTEM 1
2 kΩ
(e.g., temp sensor)
INT
SUB-SYSTEM 2
(e.g., counter)
RESET
A
enable
B
controlled
switch
(e.g., CBT device)
SUB-SYSTEM 3
(e.g., alarm system)
ALARM
GPIO device address configured as 0110 000x for this example.
EEPROM device address configured as 1110 000x for this example.
IO0, IO2, IO3 configured as outputs.
IO1, IO4, IO5 configured as inputs.
IO6, IO7 are not used and must be configured as outputs.
Fig 22. Typical application
10. Limiting values
V_DD
002aac025
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
Conditions
Min
Max
Unit
V_DD
V_I
I_I
I_O
I_DD
I_SS
P_tot
P/out
supply voltage
input voltage
input current
output current
supply current
ground supply current
total power dissipation
power dissipation per output
−0.5
+4.0
V
V_SS − 0.5 5.5
V
−20
+20
mA
−25
+25
mA
−100
+100
mA
−100
+100
mA
-
400
mW
-
100
mW
T_stg
T_amb
storage temperature
ambient temperature
operating
−65
+150
°C
−40
+85
°C
PCA9501_4
Product data sheet
Rev. 04 — 10 February 2009
© NXP B.V. 2009. All rights reserved.
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