PCA9509 Datasheet Level translating I2C-bus/SMBus repeater

Manufacturer: NXP Semiconductors

PCA9509 level translating i2c-bus/smbus repeater by NXP Semiconductors - Datasheet Preview

Datasheet Details

Part number	PCA9509
Manufacturer	NXP Semiconductors
File Size	301.61 KB
Description	Level translating I2C-bus/SMBus repeater
Download	PCA9509 Download (PDF)

General Description

The PCA9509 is a level translating I2C-bus/SMBus repeater that enables processor low voltage 2-wire serial bus to interface with standard I2C-bus or SMBus I/O.

While retaining all the operating modes and

Overview

PCA9509 Level translating I2C-bus/SMBus repeater Rev.

7 — 4 November 2014 Product data sheet 1.

Key Features

Bidirectional buffer isolates capacitance and allows 400 pF on port B of the device.
Voltage level translation from port A (1.35 V to VCC(B)  1.0 V) to port B (3.0 V to 5.5 V).
Requires no external pull-up resistors on lower voltage port A.
Active HIGH repeater enable input.
Open-drain inputs/outputs.
Lock-up free operation.
Supports arbitration and clock stretching across the repeater.
Accommodates Standard-mode and Fast-mode I2C-bus devices and multipl.

More Datasheets from NXP Semiconductors

Part Number	Description
PCA9500	8-bit I2C and SMBus I/O port
PCA9501	8-bit I2C and SMBus I/O port
PCA9504A	Glue chip 4
PCA9505	40-bit I2C-bus I/O port
PCA9508	Hot swappable level translating I2C-bus repeater
PCA9510	Hot swappable I2C and SMBus bus buffer
PCA9511	Hot swappable I2C and SMBus bus buffer
PCA9512	Level shifting hot swappable I2C and SMBus buffer
PCA9512A	Level shifting hot swappable I2C-bus and SMBus bus buffer
PCA9512B	Level shifting hot swappable I2C-bus and SMBus bus buffer