D, DCT, DGK, OR PW PACKAGE

(TOP VIEW)

1

2

3

4

V

CC

SCL1

SDA1

EN

NC

SCL0

SDA0

GND

8

7

6

5

NC

No internal connection

–

DRG PACKAGE

(TOP VIEW)

1

2

3

4

V

CC

SCL1

SDA1

EN

NC

SCL0

SDA0

GND

8

7

6

5

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PCA9515A

SCPS150D – DECEMBER 2005 – REVISED JUNE 2014

1 Features

number of devices and bus length. Using the

1

•

Two-Channel Bidirectional Buffers

PCA9515A enables the system designer to isolate

•

devices or longer trace lengths.

•

Active-High Repeater-Enable Input

•

The PCA9515A has an active-high enable (EN) input

with an internal pullup, which allows the user to select

•

when the repeater is active. This can be used to

Mixed-Mode Signal Operation

isolate a badly behaved slave on power-up reset. It

•

Lockup-Free Operation

•

Accommodates Standard Mode and Fast Mode

because disabling during a bus operation hangs the

bus, and enabling part way through a bus cycle could

•

should change state only when the global bus and

•

Latch-Up Performance Exceeds 100 mA Per

the repeater port are in an idle state, to prevent

JESD 78, Class II

system failures.

•

ESD Protection Exceeds JESD 22

The PCA9515A also can be used to run two buses:

–

2000-V Human-Body Model (A114-A)

one at 5-V interface levels and the other at 3.3-V

–

200-V Machine Model (A115-A)

interface

levels,

or

one

at

400-kHz

operating

frequency and the other at 100-kHz operating

–

1000-V Charged-Device Model (C101)

frequency. If the two buses are operating at different

frequencies, the 100-kHz bus must be isolated when

2 Description

the 400-kHz operation of the other bus is required. If

the master is running at 400 kHz, the maximum

system operating frequency may be less than

400 kHz, because of the delays that are added by the

The PCA9515A is a BiCMOS integrated circuit

repeater.

intended

for

bus

and

SMBus

systems

applications.

The

device

contains

two

identical

The PCA9515A does not support clock stretching

across the repeater.

and similar bus systems to be extended without

degradation of system performance.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

The PCA9515A buffers both the serial data (SDA)

SOIC (8)

4.90 mm × 3.91 mm

PCA9515A

retaining all the operating modes and features of the

SON (8)

3.00 mm × 3.00 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.