PCA9534D 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

PCA9534D

8-bit I2C and SMBus, low power I/O port with interrupt

Philips Electronics 

Philips Semiconductors

8-bit I2C and SMBus low power I/O port with interrupt

Product data sheet

PCA9534

FEATURES

• 8-bit I2C GPIO

• Operating power supply voltage range of 2.3 V to 5.5 V

• 5 V tolerant I/Os

• Polarity inversion register

• Active low interrupt output

• Low stand-by current

• Noise filter on SCL/SDA inputs

• No glitch on power-up

• Internal power-on reset

• 8 I/O pins which default to 8 inputs

• 0 kHz 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

• Offered in three different packages: SO16, TSSOP16, and

HVQFN16

DESCRIPTION

The PCA9534 is a16-pin CMOS device that provide 8 bits of

General Purpose parallel Input/Output (GPIO) expansion for

I2C/SMBus applications and was developed to enhance the Philips

family of I2C I/O expanders. The improvements include higher drive

capability, 5V I/O tolerance, lower supply current, individual I/O

configuration, 400 kHz clock frequency, and smaller packaging. I/O

expanders provide a simple solution when additional I/O is needed

for ACPI power switches, sensors, pushbuttons, LEDs, fans, etc.

The PCA9534 consist of an 8-bit Configuration register (Input or

Output selection); 8-bit Input register, 8-bit Output register and an

8-bit Polarity inversion register (Active HIGH or Active LOW

operation). The system master can enable the I/Os as either inputs

or outputs by writing to the I/O configuration bits. The data for each

Input or Output is kept in the corresponding Input or Output register.

The polarity of the input port register can be inverted with the

Polarity Inversion Register. All registers can be read by the system

master. Although pin-to-pin and I2C address compatible with the

PCF8574 series, software changes are required due to the

enhancements and are discussed in Application Note AN469.

The PCA9534 is identical to the PCA9554 except for the removal of

the internal I/O pull-up resistor which greatly reduces power

consumption when the I/Os are held LOW.

The PCA9534 open-drain interrupt output is activated when any

input state differs from its corresponding input port register state and

is used to indicate to the system master that an input state has

changed. The power-on reset sets the registers to their default

values and initializes the device state machine.

Three hardware pins (A0, A1, A2) vary the fixed I2C address and

allow up to eight devices to share the same I2C/SMBus.

ORDERING INFORMATION

PACKAGES

TEMPERATURE RANGE

ORDER CODE

TOPSIDE MARK

16-Pin Plastic SO (wide)

–40 °C to +85 °C

PCA9534D

PCA9534D

16-Pin Plastic TSSOP

–40 °C to +85 °C

PCA9534PW

PCA9534

16-Pin Plastic HVQFN

–40 °C to +85 °C

PCA9534BS

9534

Standard packing quantities and other packing data are available at www.standardproducts.philips.com/packaging.

I2C is a trademark of Philips Semiconductors Corporation.

SMBus as specified by the Smart Battery System Implementers Forum is a derivative of the Philips I2C patent.

DRAWING NUMBER

SOT162-1

SOT403-1

SOT629-1

2004 Sep 30

2

Share Link: