MxL82203
Overview
| Information | 16-Bit I²C/SMBus GPIO Expander with Reset |
|---|---|
| CPU Interface | I2C/SMBus |
| No. of GPIOs | 16 |
| Interrupt Output Pin | ✔ |
| Reset Input Pin | ✔ |
| Integrated Level Shifters | |
| Internal Pull-Up Resistors Enabled at Power-up | |
| 5V Tolerant Inputs | ✔ |
| Supply Voltage Range VCC (V) | 1.62V to 5.5V |
| Max UART/GPIO Input Voltage (V) | 5.5 |
| Max UART/GPIO Output Voltage (V) | VCC |
| Temperature Range (°C) | -40 to 85 |
| Package | QFN-24, TSSOP-24 |
The MxL82203 is a 16-bit GPIO expander with an I2C/SMBus interface. After power-up, the MxL82203 has internal 100K ohm pull-up resistors on each I/O pin that can be individually enabled.
In addition, the GPIOs on the MxL82203 can individually be controlled and configured. As outputs, the GPIOs can be outputs that are high, low or in three-state mode. The three-state mode feature is useful for applications where the power is removed from the remote devices, but they may still be connected to the GPIO expander.
As inputs, the internal pull-up resistors can be enabled or disabled and the input polarity can be inverted. The interrupt behavior is configurable. It can be set to trigger on a rising edge, falling edge, or both edges. The interrupt condition is cleared either when the input returns to its original state or when the current input state is read.
The MxL82203 is an enhanced version of the PCA9539 and TCA9539. The MxL82203 is pin and software compatible with the PCA9539 and TCA9539 (note: that software registers are compatible to thePCA9539, but the I2C slave address is different). The MxL82203 is available in 24-pin QFN and 24-pin TSSOP packages.
1.62V to 5.5V operating voltage
16 General Purpose I/Os (GPIOs)
Maximum stand-by current of 1uA at +1.8V
I²C/SMBus bus interface
I²C clock frequency up to 1MHz
Noise filter on SDA and SCL inputs
Up to 16 I²C Slave Addresses
Individually programmable inputs
Internal pull-up resistors
Polarity inversion
Individual interrupt enable
Rising edge and/or falling edge interrupt
Input filter
Individually programmable outputs
Output Level Control
Output Three-State Control
Open-drain active low interrupt output
Active-low reset input
Pin and software compatible with PCA9539 and TCA9539
3kV HBM ESD protection per JESD22-A114F
200mA latch-up performance per JESD78B
- Personal Digital Assistants (PDA)
- Cellular Phones/Data Devices
- Battery-Operated Devices
- Global Positioning System (GPS)
- Bluetooth
Documentation & Design Tools
| Type | Title | Version | Date | File Size |
|---|---|---|---|---|
| Product Brochures | Serial Transceivers & Bridges Brochure | R03 | May 2025 | 3.6 MB |
Parts & Purchasing
| Part Number | Min Temp | Max Temp | Status |
|---|---|---|---|
| MxL82203I-AGA-R | -40 | 85 | PRE |
| MxL82203I-AQB-R | -40 | 85 | PRE |
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
