ATtiny1616/3216
ATtiny1616/3216 Silicon Errata and Data Sheet Clarification
The ATtiny1616/3216 devices you have received conform functionally to the current device data sheet
(DS40001997), except for the anomalies described in this document. The erratas described in this document will
likely be addressed in future revisions of the ATtiny1616/3216 devices.
Note: 
This document summarizes all silicon errata issues from all revisions of silicon, previous as well as current.
Refer to the Device/Revision ID section in the current device data sheet (DS40001997) for more detailed
information on Device Identification and Revision IDs for your specific device, or contact your local Microchip
sales office for assistance.
© 2019 Microchip Technology Inc.
Errata
DS40002120B-page 1
1. Silicon Issue Summary
Legend
- Erratum is not applicable.
X Erratum is applicable.
* This silicon revision was never released to production.
Peripheral Short Description Valid for Silicon Revision
ATtiny1616 ATtiny3216
Rev. A Rev. A Rev. B Rev. C
AC
2.2.1 AC Interrupt Flag Not Set Unless Interrupt is Enabled X * * -
2.2.2 False Triggers May Occur Under Certain Conditions X * * -
2.2.3 False Triggering When Sweeping Negative Input of the
AC When the Low-Power Mode is Disabled
X * * -
ADC
2.3.1 SAMPDLY and ASDV Does Not Work Together With
SAMPLEN
X * * -
2.3.2 Pending Event Stuck When Disabling the ADC X * * -
2.3.3 ADC Functionality Cannot be Ensured with CLKADC
Above 1.5 MHz and a Setting of 25% Duty Cycle
X * * X
2.3.4 ADC Performance Degrades with CLKADC Above 1.5
MHz and VDD < 2.7V
X * * X
2.3.5 ADC Interrupt Flags Cleared When Reading RESH X * * -
2.3.6 Changing ADC Control Bits During Free-Running Mode
not Working
X * * -
2.3.7 One Extra Measurement Performed After Disabling ADC
Free-Running Mode
X * * X
2.3.8 ADC Wake-Up with WCOMP X * * -
CCL
2.4.1 Connecting LUTs in Linked Mode Require OUTEN Set to
‘1’
X * * -
2.4.2 D-latch is Not Functional X * * -
RTC
2.5.1 Any Write to the RTC.CTRLA Register Resets the RTC
and PIT Prescaler
X * * -
2.5.2 Disabling the RTC Stops the PIT X * * -
TCB
2.6.1 Minimum Event Duration Must Exceed the Selected
Clock Period
X * * X
2.6.2 The TCB Interrupt Flag is Cleared When Reading
CCMPH
X * * -
2.6.3 TCB Input Capture Frequency and Pulse-Width
Measurement Mode Not Working with Prescaled Clock
X * * -
2.6.4 The TCA Restart Command Does Not Force a Restart of
TCB
X * * X
ATtiny1616/3216
Silicon Issue Summary
© 2019 Microchip Technology Inc.
Errata
DS40002120B-page 2