ATtiny212/214/412/414
Automotive
ATtiny212/214/412/414 Automotive Silicon Errata and Data
Sheet Clarification
The ATtiny212/214/412/414 Automotive devices you have received conform functionally to the current device data
sheet (www.microchip.com/DS40002229), except for the anomalies described in this document. The erratas
described in this document will likely be addressed in future revisions of the ATtiny212/214/412/414 Automotive
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/DS40002229) 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
DS80000893A-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
Rev. A Rev. B
Device 2.2.1 Writing the OSCLOCK Fuse in FUSE.OSCCFG to ‘1’ Prevents
Automatic Loading of Calibration Values
* X
2.2.2 The Temperature Sensor is Not Calibrated on Parts with Date Code
727, 728 and 1728 (Year 2017, Week 27/28)
* X
ADC
2.3.1 One Extra Measurement Performed After Disabling ADC Free-
Running Mode
* X
2.3.2 ADC Functionality Cannot be Ensured with CLKADC Above 1.5
MHz and a Setting of 25% Duty Cycle
* X
CCL
2.4.1 Connecting LUTs in Linked Mode Requires OUTEN Set to ‘1’ * X
2.4.2 D-latch is Not Functional * X
PORTMUX
2.5.1 Selecting Alternative Output Pin for TCA0 Waveform Output 0-2
also Changes Waveform Output 3-5
* X
RTC
2.6.1 Any Write to the RTC.CTRLA Register Resets the RTC and PIT
Prescaler
* X
2.6.2 Disabling the RTC Stops the PIT * X
TCB
2.7.1 Minimum Event Duration Must Exceed the Selected Clock Period * X
2.7.2 The TCA Restart Command Does Not Force a Restart of TCB * X
USART
2.8.1 TXD Pin Override Not Released When Disabling the Transmitter * X
2.8.2 Full Range Duty Cycle Not Supported When Validating LIN Sync
Field
* X
2.8.3 Frame Error on a Previous Message May Cause False Start Bit
Detection
* X
2.8.4 Open-Drain Mode Does Not Work When TXD is Configured as
Output
* X
ATtiny212/214/412/414 Automotive
Silicon Issue Summary
© 2020 Microchip Technology Inc.
Errata
DS80000893A-page 2