TCA9535MRGER

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TCA9535MRGER

REMOTE 16-BIT I2C AND SMBUS, LOW

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Spezifikationen

Supplier Texas Instruments
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
NumberofI/O 16
Interface I²C, SMBus
InterruptOutput Yes
Features POR
OutputType Push-Pull
Current-OutputSource/Sink 10mA, 25mA
ClockFrequency 400 kHz
Voltage-Supply 1.65V ~ 5.5V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 24-VFQFN Exposed Pad

Übersicht

Description

The TCA9535MRGER is an NXP (Philips) 16‑bit I2C I/O expander. It adds 16 general-purpose GPIOs to a microcontroller, arranged as two 8‑bit ports. Each pin can be configured as input or output (via programmable IODIR) and can have inverted input polarity (IPOL). It supports an optional interrupt output to alert the MCU on changes. The device is controlled over I2C with a 7-bit address formed from base plus three address-select pins (A0–A2), allowing up to eight devices on the same bus. It operates over a wide supply range (roughly 1.65–5.5 V) and supports standard/fast I2C speeds (100–400 kHz). Suitable for expanding GPIOs in embedded systems for tasks like LED driving, sensors, or keypad interfaces. The MRGER suffix specifies a particular RoHS-compliant package variant.

Features

TCA9535MRGER features (concise):
- 16-bit I/O expander for I2C-bus (two 8-bit ports: PORTA and PORTB)
- Per-pin direction control (input or output)
- Output latch and read/write GPIO data registers
- Input polarity inversion per pin
- Per-pin pull-up resistors (configurable)
- Interrupt capability with dedicated INT output and status/capture options
- I2C addressing: up to 8 devices on a bus via A0–A2 (base 0x20 … 0x27)
- I2C speeds: Standard and Fast-mode (up to 400 kHz)
- Supply voltage: 1.65 V to 5.5 V
- Industrial temperature range: -40°C to 85°C
- Low power consumption; RoHS-compliant package (MRGER)
(Packaging note: MRGER indicates the specific RoHS package variant for this device.)

Package

28-pin SOIC (Small-Outline) package; RoHS/Green (GER) compliant.

Pinout

Pin count: 28 pins.
Function: TCA9535MRGER is a 16-bit I2C I/O expander (two 8-bit GPIO ports). It provides registers to configure direction, read inputs, write outputs, and invert polarity. The I2C address is configured via address pins (A0–A2), and the device uses SCL and SDA for communication with Vcc and GND supplied. Optional interrupt output may be available depending on package variant.

Manufacturer

- Manufacturer: NXP Semiconductors.
- What kind of company: A Dutch multinational semiconductor company that designs and manufactures integrated circuits and electronic components for automotive, industrial, and consumer markets (originating from Philips Semiconductors).

Application

- Expand GPIOs for microcontrollers needing more I/O
- Interface with digital sensors, switches, LEDs, and relays via I2C
- Keyboard scanning and matrix input
- Control panels, PLCs and industrial automation
- Home automation, smart devices and consumer electronics
- I2C-based I/O expansion for multi-device systems on a shared bus

Equivalent

Common equivalents (I2C 16‑bit GPIO expanders):
- NXP PCA9535
- NXP PCF8575
- Microchip MCP23017
These offer similar 16‑bit I/O expansion via I2C and use similar addressing.

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