XRA1201

16-Bit I²C/SMBus GPIO Expander

Overview

Information 16-Bit I²C/SMBus GPIO Expander
Supply Voltage Range VCC (V) 1.65V to 3.6V
5V Tolerant Inputs
Max UART/GPIO Input Voltage (V) 5.5
Max UART/GPIO Output Voltage (V) VCC
Package QFN-24, TSSOP-24
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
Temperature Range (°C) -40 to 85
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The XRA1201 is a 16-bit GPIO expander with an I2C/SMBus interface. After power-up, the XRA1201 has internal 100K ohm pull-up resistors on each I/O pin that can be individually enabled.

In addition, the GPIOs on the XRA1201 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 can be programmed for different behaviors. The interrupts can be programmed to generate an interrupt on the rising edge, falling edge or on both edges. The interrupt can be cleared if the input changes back to its original state or by reading the current state of the inputs.

The XRA1201 are enhanced versions of other 16-bit GPIO expanders with an I2C/SMBus interface. The XRA1201 is pin and software compatible with the PCA9535, TCA9535 and MAX7312.

The XRA1201 are available in 24-pin QFN and 24-pin TSSOP packages.


  • 1.65V to 3.6V operating voltage
  • 16 General Purpose I/Os (GPIOs)
  • 5V tolerant inputs
  • Maximum stand-by current of 1uA at +1.8V
  • I²C/SMBus bus interface
    • I²C clock frequency up to 400kHz
    • Noise filter on SDA and SCL inputs
    • Up to 32 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
  • Pin and software compatible with PCA9535, TCA9535, MAX7312 (XRA1201)
  • 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
Data Sheets XRA1201/1201P 16-Bit I²C/SMBus GPIO Expander 1.0.2 February 2022 1.2 MB
Schematics & Design Files Evaluation Board Schematic 1.0 October 2011 93.2 KB
Product Brochures Interface Brochure October 2019 1.3 MB
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
XRA1201IL24TR-F N Y Y Y Y QFN24 4x4 OPT2 Y
XRA1201IG24TR-F N Y Y Y Y TSSOP24 Y

Click on the links above to download the Certificate of Non-Use of Hazardous Substances.

Additional Quality Documentation may be available, please Contact Support.

Parts & Purchasing

Part Number Pkg Code Status Suggested Replacement Buy Now Order Samples PDN
XRA1201IG24-F TSSOP24 OBS XRA1201IG24TR-F
XRA1201IG24TR-F TSSOP24 Active Order
XRA1201IL24-F QFN24 4x4 OPT2 OBS XRA1201IL24TR-F
XRA1201IL24TR-F QFN24 4x4 OPT2 Active Order
XRA1201IG24-0A-EB Board Active
XRA1201IL24-0A-EB Board Active
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Part Status Legend
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.

Packaging

Pkg Code Details Quantities Dimensions PDF
TSSOP24
  • JEDEC Reference: MO-153
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 83.8ºC/W
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: 62
  • Quantity per Reel: 2500
  • Quantity per Tube: 62
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 16 x 8
  • Tape & Reel Unit Orientation: Quadrant 1
  • Dimensions: mm
  • Length: 7.8
  • Width: 4.4
  • Thickness: 1.2
  • Lead Pitch: 0.65
QFN24 4x4 OPT2
  • JEDEC Reference: MO-220
  • MSL Pb-Free: L2 @ 260
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 39.2
  • Bulk Pack Style: Tray
  • Quantity per Bulk Pack: 490
  • Quantity per Reel: 3000
  • Quantity per Tube: n/a
  • Quantity per Tray: 490
  • Reel Size (Dia. x Width x Pitch): 330 x 12 x 8
  • Tape & Reel Unit Orientation: Quadrant 1
  • Dimensions: mm
  • Length: 4.0
  • Width: 4.0
  • Thickness: 1.00
  • Lead Pitch: 0.5

Notifications

Distribution Date Description File
07/21/2017 Qualification of alternate assembly subcon, ANST.
07/12/2017 Product Discontinuation Notice
05/10/2017 Qualification of alternate assembly subcon, JCET.
02/23/2017 Qualification of alternate assembly subcon, ANST, China.
02/15/2017 Qualification of alternate assembly subcon, ANST.
01/27/2017 Qualification of alternate assembly subcon, ANST, China.
04/02/2014 Qualified UTAC Thailand for assembly using copper wire or gold wire bonding assembly, in addition to the current qualified gold wire bonding assembly sites, Unisem Batam and UTAC China. Material change and alternate assembly site.

FAQs & Support

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The -F suffix indicates ROHS / Green compliance:
https://www.exar.com/quality-assurance-and-reliability/lead-free-program

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