The LM8335 General Purpose Output Expander is a dedicated device to provide flexible and general purpose, host programmable output expansion functions. This device communicates with a host processor through a MIPI® RFFE Interface (Mobile Industry Processor Interface RF Front-End).
●Eight general purpose outputs (GPO) can be configured by the host controller as drive high/low/high-z. Weak pull-ups (PU) or weak pull-downs (PD) can be enabled.
●Upon power-on, the LM8335 default configuration is for all GPO to be set based on the state of the CFG pin.
●After startup, any changes to the default configuration must be sent from the host via the MIPI RFFE host interface..
●The LM8335 is available in a 16-bump lead-free DSBGA package of size 1.965 mm x 1.965 mm x 0.6 mm (0.5 mm pitch).
● MIPI RFFE Interface Version 1.10 Compliant
● Supports Output Expansion
● Host Interface Address Select Pin:
● ADR=GND, USID[3:0]=0001
● ADR=VDD, USID[3:0]=1001
● Pin-Configurable Initial State: VIO
● CFG=GND, GPO High-z, with Weak Internal Pull-Down Resistor Enabled; GPO_OUT_DATA is Unmasked
● CFG=VDD, GPO High-z, with Weak Internal Pull-Down Resistor Enabled; GPO_OUT_DATA is Masked
● Three Sources for Chip Reset:
● VIO Input Pin
● POR
● Software-Commanded Reset
●## Key Specifications
● 1.8 ± 0.15V MIPI RFFE Operation (VIO)
● 1.8 ± 0.15V Core Supply (VDD)
● 1.65 to 3.6V GPO Supply (VDDIO)
● Low Standby and Active Current
● On-Chip Power-On Reset (POR)
● −30 to +85°C Ambient Temperature Range
● 16-Bump DSBGA Package
● 1.965 mm x 1.965 mm x 0.6 mm, 0.5 mm Pitch (Nominal)
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