PCA9306 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
Product data sheet Rev. 8 — 22 January 2014 7 of 35
NXP Semiconductors
PCA9306
Dual bidirectional I
2
C-bus and SMBus voltage-level translator
6. Functional description
Refer to Figure 1 “Logic diagram of PCA9306 (positive logic)”.
6.1 Function table
[1] EN is controlled by the V
bias(ref)(2)
logic levels and should be at least 1 V higher than V
ref(1)
for best
translator operation.
7. Limiting values
[1] The input and input/output negative voltage ratings may be exceeded if the input and input/output clamp
current ratings are observed.
8. Recommended operating conditions
[1] V
ref(1)
V
bias(ref)(2)
1 V for best results in level shifting applications.
Table 4. Function selection (example)
H = HIGH level; L = LOW level.
Input EN
[1]
Function
H SCL1 = SCL2; SDA1 = SDA2
L disconnect
Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Over operating free-air temperature range.
Symbol Parameter Conditions Min Max Unit
V
ref(1)
reference voltage (1) 0.5 +6 V
V
bias(ref)(2)
reference bias voltage (2) 0.5 +6 V
V
I
input voltage 0.5
[1]
+6 V
V
I/O
voltage on an input/output pin 0.5
[1]
+6 V
I
ch
channel current (DC) - 128 mA
I
IK
input clamping current V
I
<0V - 50 mA
T
stg
storage temperature 65 +150 C
Table 6. Operating conditions
Symbol Parameter Conditions Min Max Unit
V
I/O
voltage on an input/output pin SCL1, SDA1,
SCL2, SDA2
05V
V
ref(1)
[1]
reference voltage (1) VREF1 0 5 V
V
bias(ref)(2)
[1]
reference bias voltage (2) VREF2 0 5 V
V
I(EN)
input voltage on pin EN 0 5 V
I
sw(pass)
pass switch current - 64 mA
T
amb
ambient temperature operating in free-air 40 +85 C
