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PCA9560D

Dual 5-bit multiplexed 1-bit latched I2C EEPROM DIP switch

Philips Electronics 

Philips Semiconductors

Dual 5-bit multiplexed 1-bit latched

I2C EEPROM DIP switch

Product data

PCA9560

FEATURES

• 5-bit 3-to-1 multiplexer, 1-bit latch DIP switch

• 5-bit external hardware pins

• Two 6-bit internal non-volatile registers, fully pin-to-pin compatible

with PCA9559

• Selection between the two non-volatile registers

• Selection between non-volatile registers and external hardware

pins

• I2C/SMBus interface logic

• Internal pull-up resistors on input pin and control signals

• Active high write protect on input controls the ability to write to the

non-volatile registers

• 2 address pins, allowing up to 4 devices on the I2C-bus

• 5 open drain multiplexed outputs

• Open drain non-multiplexed output

• Internal 6-bit non-volatile registers programmable and readable via

I2C-bus

• External hardware 5-bit value readable via I2C-bus

• Multiplexer selection can be overridden by I2C-bus

• Operating power supply voltage 3.0 V to 3.6 V

• 5 V and 2.5 V tolerant inputs

• 0 to 400 kHz clock frequency

• 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 JESDEC Standard JESD78 which

exceeds 100 mA.

• Package offering: SO 20, TSSOP 20

DESCRIPTION

The PCA9560 is a 20-pin CMOS device consisting of two 6-bit

non-volatile EEPROM registers, 5 hardware pin inputs and a 5-bit

multiplexed output with one latched EEPROM bit. It is used for DIP

switch-free or jumper-less system configuration and supports Mobile

and Desktop VID Configuration, where 3 preset values (2 sets of

internal non-volatile registers and 1 set of external hardware pins)

set processor voltage for operation in either performance, deep

sleep or deeper sleep modes. The PCA9560 is also useful in server

and telecom/networking applications when used to replace DIP

switches or jumpers, since the settings can be easily changed via

I2C/SMBus without having to power down the equipment to open the

cabinet. The non-volatile memory retains the most current setting

selected before the power is turned off.

The PCA9560 typically resides between the CPU and Voltage

Regulator Module (VRM) when used for CPU VID (Voltage

IDentification code) configuration. It is used to bypass the

CPU-defined VID values and provide a different set of VID values to

the VRM, if an increase in the CPU voltage is desired. An increase

in CPU voltage combined with an increase in CPU frequency leads

to a performance boost of up to 7.5%. Lower CPU voltage reduces

power consumption. The main advantage of the PCA9560 over the

older PCA9559 device in this application is that it contains two

internal non-volatile EEPROM registers instead of just one, allowing

three independent settings (performance operation, deep sleep

mode and deeper sleep mode) instead of only two (performance

operation and deep sleep mode). The PCA9560 is footprint

compatible and a drop-in replacement for the PCA9559, without any

software modifications required.

The PCA9560 has 2 address pins allow up to 4 devices to be placed

on the same I2C bus or SMBus.

PIN CONFIGURATION

SCL 1

SDA 2

A1 3

A0 4

MUX_IN A 5

MUX_IN B 6

MUX_IN C 7

MUX_IN D 8

MUX_IN E 9

GND 10

20 VDD

19 WP

18 MUX_SELECT_1

17 NON-MUXED_OUT

16 MUX_OUT A

15 MUX_OUT B

14 MUX_OUT C

13 MUX_OUT D

12 MUX_OUT E

11 MUX_SELECT_0

SW00829

Figure 1. Pin configuration

PIN DESCRIPTION

PIN

SYMBOL

1

SCL

2

SDA

3

A1

4

A0

5-9

MUX_IN A-E

10

GND

11

MUX_

SELECT_0

12-16 MUX_OUT E-A

17

NON-MUXED_

OUTPUT

18

MUX_

SELECT_1

19

WP

20

VDD

FUNCTION

Serial I2C-bus clock

Serial bi-directional I2C-bus data

Programmable LSBs of I2C

address

External inputs to multiplexer

Ground

Selects MUX_IN inputs or register

contents for MUX_OUT outputs

Open drain multiplexed outputs

Open drain output from

non-volatile memory

Selects between the two

non-volatile registers

Active high non-volatile register

write-protect input

Power supply: +3.0 to +3.6 V

ORDERING INFORMATION

PACKAGES

TEMPERATURE RANGE

ORDER CODE

TOPSIDE MARK

DRAWING NUMBER

20-Pin Plastic SO

-40 to +85 °C

PCA9560D

PCA9560D

SOT163-1

20-Pin Plastic TSSOP

-40 to +85 °C

PCA9560PW

PCA9560

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

SOT360-1

2003 Jun 27

2

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