Datasheet

PCAL6416A All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 6 — 9 October 2014 29 of 61
NXP Semiconductors
PCAL6416A
Low-voltage translating 16-bit I
2
C-bus/SMBus I/O expander
more clocks ensures the slave state machine returns to a known, idle state since the
protocol calls for eight data bits and one ACK bit. It does not matter when the slave state
machine finishes its transmission, extra clocks will be recognized as STOP conditions.
The PCAL6416A SCL pin is an input only. If SCL is stuck LOW, then only the bus master
or a slave performing a clock stretch operation can cause this condition.
With careful design of the bus master error recovery firmware, many I
2
C-bus protocol
problems can be avoided.
10. Limiting values
[1] The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
Table 31. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
DD(I2C-bus)
I
2
C-bus supply voltage 0.5 +6.5 V
V
DD(P)
supply voltage port P 0.5 +6.5 V
V
I
input voltage
[1]
0.5 +6.5 V
V
O
output voltage
[1]
0.5 +6.5 V
I
IK
input clamping current ADDR, RESET, SCL; V
I
<0V - 20 mA
I
OK
output clamping current INT; V
O
<0V - 20 mA
I
IOK
input/output clamping current P port; V
O
<0V or V
O
>V
DD(P)
- 20 mA
SDA; V
O
<0V or V
O
>V
DD(I2C-bus)
- 20 mA
I
OL
LOW-level output current continuous; P port; V
O
= 0 V to V
DD(P)
-50mA
continuous; SDA, INT
;
V
O
= 0 V to V
DD(I2C-bus)
-25mA
I
OH
HIGH-level output current continuous; P port; V
O
= 0 V to V
DD(P)
-25mA
I
DD
supply current continuous through V
SS
- 200 mA
I
DD(P)
supply current port P continuous through V
DD(P)
- 160 mA
I
DD(I2C-bus)
I
2
C-bus supply current continuous through V
DD(I2C-bus)
-10mA
T
stg
storage temperature 65 +150 C
T
j(max)
maximum junction temperature - 125 C