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Part: PCA9535D
Category:
Interface and Interconnect
-> I2C
Description: PCA9535; 16-bit I2C And Smbus, Low Power I/o Port With Interrupt;; Package: SOT137-1 (SO24)
Company: Philips Semiconductors
Datasheet: Download PCA9535D datasheet File size : 110 kB
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Datasheet text preview:
INTEGRATED CIRCUITS
PCA9535 16-bit I2C and SMBus, low power I/O port with interrupt
Product data 2003 Jun 27
Philips Semiconductors
Philips Semiconductors
Product data
16-bit I2C and SMBus, low power I/O port with interrupt
PCA9535
I2C/SMBus applications and was developed to enhance the Philips family of I2C I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, 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 PCA9535 consist of two 8-bit Configuration (Input or Output selection); Input, Output and Polarity inversion (Active HIGH or Active LOW operation) registers. 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 read 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 PCF8575, software changes are required due to the enhancements and are discussed in Application Note AN469. The PCA9535 is identical to the PCA9555 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 PCA9535 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. The fixed I2C address of the PCA9535 is the same as the PCA9554 allowing up to eight of these devices in any combination to share the same I2C/SMBus.
FEATURES
· Operating power supply voltage range of 2.3 V-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 · 16 I/O pins which default to 16 inputs · 0 to 400 kHz clock frequency · ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V · Latch-up testing is done to JESDEC Standard JESD78 which · Offered in three different packages: SO24, TSSOP24, and
HVQFN24 exceeds 100 mA MM per JESD22-A115, and 1000 V CDM per JESD22-C101
DESCRIPTION
The PCA9535 is a 24-pin CMOS device that provide 16 bits of General Purpose parallel Input/Output (GPIO) expansion for
ORDERING INFORMATION
PACKAGES 24-Pin Plastic SO 24-Pin Plastic TSSOP TEMPERATURE RANGE -40 to +85 °C -40 to +85 °C ORDER CODE PCA9535D PCA9535PW TOPSIDE MARK PCA9535D PCA9535PW DRAWING NUMBER SOT137-1 SOT355-1 SOT616-1
24-Pin Plastic HVQFN -40 to +85 °C PCA9535BS 9535 Standard packing quantities and other packing data are available at www.philipslogic.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.
2003 Jun 27
2
Philips Semiconductors
Product data
16-bit I2C and SMBus, low power I/O port with interrupt
PCA9535
PIN CONFIGURATION -- SO, TSSOP
INT A1 A2 I/O0.0 I/O0.1 I/O0.2 I/O0.3 I/O0.4 I/O0.5 1 2 3 4 5 6 7 8 9 24 VDD 23 SDA 22 SCL 21 A0 20 I/O1.7 19 I/O1.6 18 I/O1.5 17 I/O1.4 16 I/O1.3
PIN CONFIGURATION --HVQFN
21 VDD 20 SDA 19 SCL 18 A0 17 I/O1.7 16 I/O1.6 15 I/O1.5 14 I/O1.4 13 I/O1.3 I/O1.2 12 I/O1.0 10 I/O1.1 11 7 8 I/O0.7 9 VSS 22 INT 24 A2 I/O0.0 I/O0.1 I/O0.2 I/O0.3 I/O0.4 I/O0.5 1 2 3 4 5 6 I/O0.6 23 A1
I/O0.6 10 I/O0.7 11 VSS 12
15 I/O1.2 14 I/O1.1 13 I/O1.0
TOP VIEW
SU01438 su01683
Figure 1. Pin configuration -- SO, TSSOP
Figure 2. Pin configuration -- HVQFN
PIN DESCRIPTION
SO, TSSOP PIN NUMBER 1 2 3 4-1 1 12 13-20 21 22 23 24 HVQFN PIN NUMBER 22 23 24 1-8 9 10-17 18 19 20 21 SYMBOL INT A1 A2 I/O0.0-I/O0.7 VSS I/O1.0-I/O1.7 A0 SCL SDA VDD FUNCTION Interrupt output (open drain) Address input 1 Address input 2 I/O0.0 to I/O0.7 Supply ground I/O1.0 to I/O1.7 Address input 0 Serial clock line Serial data line Supply voltage
2003 Jun 27
3
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