ZHCSG49F December 2015 – May 2019 AM5726 , AM5728 , AM5729
PRODUCTION DATA.
This section describes the Unused/Reserved balls connection requirements.
NOTE
The following balls are reserved: Y5 / Y10 / K14 / B28 /A27
These balls must be left unconnected.
NOTE
All unused power supply balls must be supplied with the voltages specified in the Section 5.4, Recommended Operating Conditions, unless alternative tie-off options are included in Section 4.4, Signal Descriptions.
BALLS | CONNECTION REQUIREMENTS |
---|---|
AE14 / AE15 / AD17 / AC15 / AC16 / AC17 / AB16 / V27 / D20 / AH25 / AE27 / AD27 / Y28 / G28 / H27 / K27 / M28 | These balls must be connected to GND through an external pull resistor if unused |
V28 / F18 / E20 / E23 / D21 / C20 / C21 / AG25 / AE28 / AD28 / Y27 / G27 / H28 / K28 / M27 / F17 / C25 | These balls must be connected to the corresponding power supply through an external pull resistor if unused |
AF14 (rtc_iso) | This ball should be connected to the corresponding power supply through an external pull resistor if unused; or can be connected to F22 (porz) when RTC unused (level translation may be needed) |
AB17 (rtc_porz) | This ball should be connected to VSS when RTC is unused; or can be connected to F22 (porz) when RTC unused (level translation may be needed) |
NOTE
All other unused signal balls with a Pad Configuration Register can be left unconnected with their internal pullup or pulldown resistor enabled.
NOTE
All other unused signal balls without Pad Configuration Register can be left unconnected.