ATtiny416/816
ATtiny416/816 Silicon Errata and Data Sheet Clarification
The ATtiny416/816 devices you have received conform functionally to the current device data sheet
(www.microchip.com/DS40001913), except for the anomalies described in this document. The errata described in this
document will likely be addressed in future revisions of the ATtiny416/816 devices.
Notes: 
This document summarizes all the 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 (www.microchip.com/DS40001913) for
more detailed information on Device Identification and Revision IDs for your specific device, or contact your local
Microchip sales office for assistance
© 2020 Microchip Technology Inc.
Errata
DS40002116C-page 1
1. Silicon Issue Summary
Legend
- Erratum is not applicable.
X Erratum is applicable.
Peripheral Short Description Valid for Silicon Revision
ATtiny416 ATtiny816
Rev. A Rev. B Rev. C Rev. A Rev. B
Device
2.2.1 The Temperature Sensor is Not Calibrated on Parts
with Date Code 727, 728 and 1728 (Year 2017, Week
27/28)
- X - - -
2.2.2 Writing the OSCLOCK Fuse in FUSE.OSCCFG to ‘1’
Prevents Automatic Loading of Calibration Values
X X X X X
AC
2.3.1 Coupling Through AC Pins - - - X X
2.3.2 AC Interrupt Flag Not Set Unless Interrupt is Enabled X - - X X
2.3.3 False Triggers May Occur Under Certain Conditions X - - - -
2.3.4 False Triggers May Occur Under Certain Conditions - - - X X
2.3.5 False Triggering When Sweeping Negative Input of
the AC When the Low Power Mode is Disabled
- - - X X
ADC
2.4.1 One Extra Measurement Performed After Disabling
ADC Free-Running Mode
X X X X X
2.4.2 Changing ADC Control Bits During Free-Running
Mode not Working
X - - X X
2.4.3 ADC Wake-Up with WCMP X - - X X
2.4.4 SAMPDLY and ASDV Does Not Work Together With
SAMPLEN
X - - - -
2.4.5 ADC Functionality Cannot be Ensured with CLKADC
Above 1.5 MHz and a Setting of 25% Duty Cycle
X X X X X
2.4.6 ADC Performance Degrades with CLKADC Above 1.5
MHz and VDD < 2.7V
X X X X X
2.4.7 Pending Event Stuck When Disabling the ADC - - - X X
2.4.8 ADC Interrupt Flags Cleared When Reading RESH X - - X X
CCL
2.5.1 Connecting LUTs in Linked Mode Requires OUTEN
Set to ‘1’
X X X X X
2.5.2 D-latch is Not Functional X X X X X
2.5.3 The CCL Must be Disabled to Change the
Configuration of a Single LUT
X X X X X
PORTMUX
2.6.1 Selecting Alternative Output Pin for TCA0 Waveform
Output 0-2 also Changes Waveform Output 3-5
X X X - -
ATtiny416/816
Silicon Issue Summary
© 2020 Microchip Technology Inc.
Errata
DS40002116C-page 2