DatasheetsPDF.com

PCA9534A

Texas Instruments
Part Number PCA9534A
Manufacturer Texas Instruments
Description Remote 8-BIT I2C and SMBus Low-Power I/O Expander
Published May 15, 2020
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community PCA9534A SCPS141I – SEPTEMBER ...
Datasheet PDF File PCA9534A PDF File

PCA9534A
PCA9534A

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community PCA9534A SCPS141I – SEPTEMBER 2006 – REVISED JUNE 2014 PCA9534A Remote 8-BIT I2C and SMBus Low-Power I/O Expander With Interrupt Output And Configuration Registers 1 Features •1 Low Standby Current Consumption of 1 μA Max • I2C to Parallel Port Expander • Open-Drain Active-Low Interrupt Output • Operating Power-Supply Voltage Range of 2.
3 V to 5.
5 V • 5-V Tolerant I/O Ports • 400-kHz Fast I2C Bus • Three Hardware Address Pins Allow Up to Eight Devices on the I2C/SMBus • Allows Up to 16 Devices on the I2C/SMBus When Used in Conjunction with the PCA9534 See Device Comparison Table for I2C Expander offerings • Input/Output Configuration Register • Polarity Inversion Register • Internal Power-On Reset • Power-Up With All Channels Configured as Inputs • No Glitch on Power-Up • Noise Filter on SCL/SDA Inputs • Latched Outputs With High-Current Drive Maximum Capability for Directly Driving LEDs • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II • ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) 2 Description This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.
3-V to 5.
5-V VCC operation.
It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)].
The PCA9534A consists of one 8-bit configuration (input or output selection), input port, output port, and polarity inversion (active high or active low) register.
At power on, the I/Os are configured as inputs.
However, 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...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)