EMIF03-SIM02M8 VDD, GND pad connections

[AVigh.1]

Hi, 

I have two pin connection questions, related to EMIF03-SIM02M8: 
1) Are VDD pins 1 & 8 connected internal to the chip or should be connected together externally?

2) Pin 9, GND does it have to be connected to system ground, or that's optional?

Any layout recommendations please?

[TDK]

• VCC should be connected on each side like a passthrough, not tied externally.
• GND needs connected, not optional.

See the diagram in the datasheet:

> Any layout recommendations please?

Generally, ESD protection should be close to the external connector, in this case the SIM connector. Ensure the GND connection is solid.