pca9306 datasheet
Table Of Contents
- 1 Features
- 2 Applications
- 3 Description
- Table of Contents
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 6.1 Absolute Maximum Ratings
- 6.2 ESD Ratings
- 6.3 Recommended Operating Conditions
- 6.4 Thermal Information
- 6.5 Electrical Characteristics
- 6.6 Switching Characteristics AC Performance (Translating Down) (EN = 3.3 V)
- 6.7 Switching Characteristics AC Performance (Translating Down) (EN = 2.5 V)
- 6.8 Switching Characteristics AC Performance (Translating Up) (EN = 3.3 V)
- 6.9 Switching Characteristics AC Performance (Translating Up) (EN = 2.5 V)
- 6.10 Typical Characteristics
- 7 Parameter Measurement Information
- 8 Detailed Description
- 8.1 Overview
- 8.1.1 Definition of threshold voltage
- 8.1.2 Correct Device Set Up
- 8.1.3 Disconnecting a Slave from the Main I2C Bus Using the EN Pin
- 8.1.4 Supporting Remote Board Insertion to Backplane with PCA9306
- 8.1.5 Switch Configuration
- 8.1.6 Master on Side 1 or Side 2 of Device
- 8.1.7 LDO and PCA9306 Concerns
- 8.1.8 Current Limiting Resistance on VREF2
- 8.2 Functional Block Diagram
- 8.3 Feature Description
- 8.4 Device Functional Modes
- 8.1 Overview
- 9 Application and Implementation
- 10 Power Supply Recommendations
- 11 Layout
- 12 Device and Documentation Support
- 13 Mechanical, Packaging, and Orderable Information
1 2
A
B
C
D
GND EN
V
REF1
! V
REF2
!
SCL1 SCL2
SDA1 SDA2
1GND 8 EN
2V
REF1
7 V
REF2
3SCL1 6 SCL2
4SDA1 5 SDA2
1GND 8 EN
2V
REF1
7 V
REF2
3SCL1 6 SCL2
4SDA1 5 SDA2
1GND 8 EN
2V
REF1
7 V
REF2
3SCL1 6 SCL2
4SDA1 5 SDA2
4
PCA9306
SCPS113M –OCTOBER 2004–REVISED APRIL 2019
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Product Folder Links: PCA9306
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5 Pin Configuration and Functions
DCT Package
8-Pin SSOP
Top View
DCU Package
8-Pin VSSOP
Top View
DQE Package
8-Pin X2SON
Top View
YZT Package
8-Pin DSBGA
Top View
Pin Functions
PIN
I/O DESCRIPTION
NAME
NO.
DCT,
DCU,
DQE
YZT
EN 8 A2 I Switch enable input
GND 1 A1 — Ground, 0 V
SCL1 3 C1 I/O Serial clock, low-voltage side
SCL2 6 C2 I/O Serial clock, high-voltage side
SDA1 4 D1 I/O Serial data, low-voltage side
SDA2 5 D2 I/O Serial data, high-voltage side
V
REF1
2 B1 I Low-voltage-side reference supply voltage for SCL1 and SDA1
V
REF2
7 B2 I High-voltage-side reference supply voltage for SCL2 and SDA2