pca9538d NXP Semiconductors, pca9538d Datasheet - Page 2

• Manufacturer Part Number: pca9538d
• Description: 8-bit I2c And Smbus Low Power I/o Port With Interrupt And Reset
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
ORDERING INFORMATION
Standard packing quantities and other packing data are available at www.standardics.philips.com/packaging.
SMBus as specified by the Smart Battery System Implementers Forum is a derivative of the Philips I
16-Pin Plastic SO (wide)
16-Pin Plastic TSSOP
16-Pin Plastic HVQFN
2006 Sep 21
8-bit I
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
Active LOW reset input
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
8-bit I
I/O port with interrupt and reset
2
PACKAGES
C GPIO with interrupt and reset
2
C-bus and SMBus low power
TEMPERATURE RANGE
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
ORDER CODE
PCA9538PW
PCA9538BS
PCA9538D
2
DESCRIPTION
The PCA9538 is a 16-pin CMOS device that provide 8 bits of
General Purpose parallel Input/Output (GPIO) expansion with
interrupt and reset for I
to enhance the Philips family of I
provides a simple solution when additional I/O is needed for ACPI
power switches, sensors, pushbuttons, LEDs, fans, etc.
The PCA9538 consists 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.
The PCA9538 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, replacement of A2 with
RESET and different address range.
The PCA9538 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. The RESET pin
causes the same reset/initialization to occur without depowering the
device.
Two hardware pins (A0 and A1) vary the fixed I
up to four devices to share the same I
TOPSIDE MARK
PCA9538D
PCA9538
9538
2
C/SMBus applications and was developed
2
C patent.
2
C I/O expanders. I/O expanders
2
C/SMBus.
DRAWING NUMBER
2
C address and allow
Product data sheet
PCA9538
SOT162-1
SOT403-1
SOT629-1