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PCA9508 Datasheet Hot Swappable Level Translating I2c-bus Repeater

Manufacturer: NXP Semiconductors

Overview: PCA9508 Hot swappable level translating I2C-bus repeater Rev. 01 — 28 April 2008 Product data sheet 1.

General Description

The PCA9508 is a CMOS integrated circuit that supports hot-swap with zero offset and provides level shifting between low voltage (down to 0.9 V) and higher voltage (2.7 V to 5.5 V) for I2C-bus or SMBus applications.

While retaining all the operating modes and

Key Features

  • of the I2C-bus system during the level shifts, it also permits extension of the I2C-bus by providing bidirectional buffering for both the data (SDA) and the clock (SCL) lines, thus enabling two buses of 400 pF. Using the PCA9508 enables the system designer to isolate two halves of a bus for both voltage and capacitance, and perform hot-swap and voltage level translation. Furthermore, the dual supply pins can be powered up in any sequence; when any of the supply pins are unpowered, the 5 V tolera.

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
PCA9509 Level translating I2C-bus/SMBus 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

PCA9508 Distributor