PCA9516 datasheet(2/10 Pages) PHILIPS

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Philips Semiconductors

Product data

PCA9516

5-channel I2C hub

2002 May 13

853–2234 28185

DESCRIPTION

The PCA9516 is a BiCMOS integrated circuit intended for

application in I2C and SMBus systems.

While retaining all the operating modes and features of the I2C

system, it permits extension of the I2C bus by buffering both the data

(SDA) and the clock (SCL) lines, thus enabling five buses of 400 pF.

The I2C bus capacitance limit of 400 pF restricts the number of

devices and bus length. Using the PCA9516 enables the system

designer to divide the bus into five segments off of a hub where any

segment to segment transition sees only one repeater delay.

It can also be used to run different buses at 5 V and 3.3 V or

400 kHz and 100 kHz buses where the 100 kHz bus is isolated

when 400 kHz operation of the other bus is required.

FEATURES

• 5 channel, bi-directional buffer

• I2C-bus and SMBus compatible

• Active high individual repeater enable input

• Open-drain input/outputs

• Lock-up free operation

• Supports arbitration and clock stretching across the repeater

• Accommodates standard mode and fast mode I2C devices and

multiple masters

• Powered-off high impedance I2C pins

• Operating supply voltage range of 3.0 V to 3.6 V

• 5 V tolerant I2C and enable pins

• 0 to 400 kHz clock frequency1

• ESD protection exceeds 2000 V HBM per JESD22-A114,

200 V MM per JESD22-A115, and 1000 V CDM per

JESD22-C101.

• Latch-up testing is done to JEDEC Standard JESD78 which

exceeds 100 mA.

• Package offerings: SO and TSSOP

PIN CONFIGURATION

SCL0

SDA1

SCL1

EN4

SDA4

SCL4

VCC

SDA0

SU01395

EN1

GND

SDA2

SDA3

SCL3

EN2

EN3

SCL2

Figure 1. Pin configuration

PIN DESCRIPTION

SYMBOL

FUNCTION

SCL0

Serial clock bus 0

SDA0

Serial data bus 0

SCL1

Serial clock bus 1

SDA1

Serial data bus 1

EN1

Active High Bus 1 enable Input

SCL2

Serial clock bus 2

SDA2

Serial data bus 2

GND

Supply ground

EN2

Active High Bus 2 enable Input

SCL3

Serial clock bus 3

SDA3

Serial data bus 3

EN3

Active High Bus 3 enable Input

SCL4

Serial clock bus 4

SDA4

Serial data bus 4

EN4

Active High Bus 4 enable Input

VCC

Supply power

ORDERING INFORMATION

DESCRIPTION

TEMPERATURE RANGE

ORDER CODE

DRAWING NUMBER

16-pin plastic SO (narrow)

–40 to +85

°C

PCA9516D

SOT109-1

16-pin plastic TSSOP

–40 to +85

°C

PCA9516PW

SOT403-1

Standard packing quantities and other packaging data is available at www.philipslogic.com/packaging.

The maximum system operating frequency may be less than 400 KHz because of the delays added by the repeater.

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