pca9502 NXP Semiconductors, pca9502 Datasheet - Page 13

• Manufacturer Part Number: pca9502
• Description: 8-bit I/o Expander With I2c-bus/spi Interface
• Manufacturer: NXP Semiconductors

NXP Semiconductors
10. SPI operation
11. Limiting values
PCA9502_3
Product data sheet
Table 13.
Table 14.
In accordance with the Absolute Maximum Rating System (IEC 60134).
[1]
Bit
7
6:3
2:1
0
Symbol
V
V
I
I
P
P/out
T
T
I
O
Fig 12. SPI operation
SCLK
SCLK
amb
stg
DD
I
tot
SO
5.5 V steady state voltage tolerance on inputs and outputs is valid only when the supply voltage is present.
4.6 V steady state voltage tolerance on inputs and outputs when no supply voltage is present.
SI
SI
a. Register write
b. Register read
R/W = 0; A[3:0] = register address
R/W = 1; A[3:0] = register address
Register address byte (SPI)
Limiting values
R/W
R/W
Parameter
supply voltage
input voltage
input current
output current
total power dissipation
power dissipation per output
ambient temperature
storage temperature
Name
R/W
A[3:0]
-
-
A3
A3
A2
A2
Rev. 03 — 13 October 2006
A1
A1
A0
A0
Function
1: read from PCA9502
0: write to PCA9502
internal register select
not used, set to 0
not used
0
0
0
0
8-bit I/O expander with I
X
X
Conditions
any input
any input
any output
D7
D7
D6
D6
D5
D5
D4
D4
Min
-
-
0.3
0.3
10
10
40
65
D3
D3
D2
D2
2
C-bus/SPI interface
Max
+4.6
+5.5
+10
+10
300
50
+85
+150
PCA9502
© NXP B.V. 2006. All rights reserved.
D1
D1
[1]
D0
D0
002aab925
002aab926
Unit
V
V
mA
mA
mW
mW
C
C
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