XRA1206IL16TR-F MaxLinear

XRA1206 8-BIT I2C/SMBUS GPIO EXPANDER WITH INTEGRATED LEVEL SHIFTERS SEPTEMBER 2011 REV. 1.0.0 FEATURES GENERAL DESCRIPTION 1.65V to 3.6V operating voltage 2 The XRA1206 is an 8-bit GPIO expander with an I C/ SMBus interface. After power-up, the XRA1206 has Integrated level shifters internal 100K ohm pull-up resistors on each I/O pin 8 General Purpose I/Os (GPIOs) that can be individually enabled. 5V tolerant inputs In addition, the GPIOs on the XRA1206 can individually be controlled and configured. As outputs, Maximum stand-by current of 1uA at +1.8V the GPIOs can be outputs that are high, low or in 2 I C/SMBus bus interface three-state mode. The three-state mode feature is 2 useful for applications where the power is removed I C clock frequency up to 400kHz from the remote devices, but they may still be Noise filter on SDA and SCL inputs connected to the GPIO expander. 2 Up to 4 I C Slave Addresses As inputs, the internal pull-up resistors can be Individually programmable inputs enabled or disabled and the input polarity can be inverted. The interrupt can be programmed for Internal pull-up resistors different behaviors. The interrupts can be Polarity inversion programmed to generate an interrupt on the rising Individual interrupt enable edge, falling edge or on both edges. The interrupt can be cleared if the input changes back to its original Rising edge and/or Falling edge interrupt state or by reading the current state of the inputs. Input filter The XRA1206 is an enhanced version of the Individually programmable outputs TCA6408. The XRA1206 is pin and software Output Level Control compatible with the TCA6408. Output Three-State Control The XRA1206 is available in 16-pin QFN and 16-pin Open-drain active low interrupt output TSSOP packages. Active-low reset input Pin and software compatible with TCA6408 3kV HBM ESD protection per JESD22-A114F 200mA latch-up performance per JESD78B APPLICATIONS Personal Digital Assistants (PDA) Cellular Phones/Data Devices Battery-Operated Devices Global Positioning System (GPS) Bluetooth Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com XRA1206 8-BIT I2C/SMBUS GPIO EXPANDER WITH INTEGRATED LEVEL SHIFTERS REV. 1.0.0 FIGURE 1. XRA1206 BLOCK DIAGRAM VCCP VCC (1.65V 3.6V) (1.65V 3.6V) SCL P0 SDA P1 P2 2 I C/ GPIO Integrated P3 SMBus Control GPIOs Level P4 A0 Interface Registers Shifters P5 P6 RESET P7 IRQ GND ORDERING INFORMATION NUMBER OF OPERATING TEMPERATURE PART NUMBER PACKAGE DEVICE STATUS GPIOS RANGE XRA1206IL16-F QFN-16 8 -40C to +85C Active XRA1206IL16TR-F QFN-16 8 -40C to +85C Active XRA1206IG16-F TSSOP-16 8 -40C to +85C Active XRA1206IG16TR-F TSSOP-16 8 -40C to +85C Active NOTE: TR = Tape and Reel, F = Green / RoHS FIGURE 2. PIN OUT ASSIGNMENTS VCC 1 16 VCCP A0 SDA 2 15 16 15 14 13 SCL 12 1 RESET RESET 3 14 SCL 11 IRQ P0 2 XRA1206 P0 4 13 IRQ XRA1206 16-Pin QFN 10 P7 3 16-Pin TSSOP P1 5 P1 12 P7 9 P6 P2 4 P2 6 11 P6 5 678 P3 7 10 P5 GND 9 P4 8 2 P3 A0 GND VCC P4 VCCP P5 SDA