Microchip ATTINY804 Handleiding


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ATtiny804/806/807/1604/1606/
1607
Silicon Errata and Data Sheet Clarification
The ATtiny804/806/807/1604/1606/1607 devices you have received conform functionally to the current device data
sheet (www.microchip.com/DS40002312), except for the anomalies described in this document. The errata described
in this document will likely be addressed in future revisions of the ATtiny804/806/807/1604/1606/1607 devices.
Notes:β€€
β€’ This document summarizes all the silicon errata issues from all revisions of silicon, previous as well as current
β€’ Refer to the Device/Revision ID section in the current device data sheet (www.microchip.com/DS40002312) for
more detailed information on Device Identification and Revision IDs for your specific device, or contact your local
Microchip sales office for assistance
Β© 2021 Microchip Technology Inc. Errata DS80000951A-page 1
1. Silicon Issue Summary
Legend
-Erratum is not applicable.
XErratum is applicable.
Peripheral Short Description Valid for Silicon
Revision
Rev. A
Device 2.2.1 Writing the OSCLOCK Fuse in FUSE.OSCCFG to β€˜1’ Prevents Automatic
Loading of Calibration Values X
ADC
2.3.1 One Extra Measurement Performed After Disabling ADC Free-Running
Mode X
2.3.2 Pending Event Stuck When Disabling the ADC X
2.3.3 ADC Performance Degrades with CLKADC Above 1.5 MHz and VDD <
2.7V X
2.3.4 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 β€˜1’ X
2.4.2 D-latch is Not Functional X
2.4.3 The CCL Must be Disabled to Change the Configuration of a Single LUT X
RTC 2.5.1 Disabling the RTC Stops the PIT X
2.5.2 Any Write to the RTC.CTRLA Register Resets the RTC and PIT Prescaler X
TCA X2.6.1 Restart Will Reset Counter Direction in NORMAL and FRQ Mode
TCB
2.7.1 The TCA Restart Command Does Not Force a Restart of TCB X
2.7.2 Minimum Event Duration Must Exceed the Selected Clock Period X
2.7.3 CCMP and CNT Registers Operate as 16-Bit Registers in 8-Bit PWM Mode X
USART
2.8.1 TXD Pin Override Not Released When Disabling the Transmitter X
2.8.2 Open-Drain Mode Does Not Work When TXD is Configured as Output X
2.8.3 Start-of-Frame Detection Can Unintentionally Be Triggered in Active Mode X
ATtiny804/806/807/1604/1606/1607
Silicon Issue Summary
Β© 2021 Microchip Technology Inc. Errata DS80000951A-page 2
2. Silicon Errata Issues
2.1 Errata Details
-Erratum is not applicable.
XErratum is applicable.
2.2 Device
2.2.1 Writing the OSCLOCK Fuse in FUSE.OSCCFG to β€˜ ’ Prevents Automatic Loading of Calibration1
Values
Writing the OSCLOCK fuse in FUSE.OSCCFG to β€˜ ’ prevents the automatic loading of calibration values from the1
signature row. The device will run with an uncalibrated OSC20M oscillator.
Work Around
Do not use OSCLOCK for locking the oscillator calibration value. The oscillator calibration value can be locked by
writing LOCK in CLKCTRL.OSC20MCALIBB to β€˜ ’.1
Affected Silicon Revisions
Rev. A
X
2.3 ADC - Analog-to-Digital Converter
2.3.1 One Extra Measurement Performed After Disabling ADC Free-Running Mode
The ADC may perform one additional measurement after clearing ADCn.CTRLA.FREERUN.
Work Around
Write ADCn.CTRLA.ENABLE to β€˜ ’ to stop the Free-Running mode immediately.0
Affected Silicon Revisions
Rev. A
X
2.3.2 Pending Event Stuck When Disabling the ADC
If the ADC is disabled during an event-triggered conversion, the event will not be cleared.
Work Around
Clear ADC.EVCTRL.STARTEI and wait for the conversion to complete before disabling the ADC.
Affected Silicon Revisions
Rev. A
ATtiny804/806/807/1604/1606/1607
Silicon Errata Issues
Β© 2021 Microchip Technology Inc. Errata DS80000951A-page 3


Product specificaties

Merk: Microchip
Categorie: Niet gecategoriseerd
Model: ATTINY804

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