ATTINY25 View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATTINY25

Atmel 8-bit AVR Microcontroller with 2/4/8K Bytes In-System Programmable Flash

Atmel Corporation 

8. Errata

8.1 Errata ATtiny25

The revision letter in this section refers to the revision of the ATtiny25 device.

8.1.1 Rev D – F

No known errata.

8.1.2 Rev B – C

• EEPROM read may fail at low supply voltage / low clock frequency

1. EEPROM read may fail at low supply voltage / low clock frequency

Trying to read EEPROM at low clock frequencies and/or low supply voltage may result in invalid data.

Problem Fix/Workaround

Do not use the EEPROM when clock frequency is below 1MHz and supply voltage is below 2V. If operating fre-

quency can not be raised above 1MHz then supply voltage should be more than 2V. Similarly, if supply voltage

can not be raised above 2V then operating frequency should be more than 1MHz.

This feature is known to be temperature dependent but it has not been characterised. Guidelines are given for

room temperature, only.

8.1.3 Rev A

Not sampled.

8.2 Errata ATtiny45

The revision letter in this section refers to the revision of the ATtiny45 device.

8.2.1 Rev F – G

No known errata

8.2.2 Rev D – E

• EEPROM read may fail at low supply voltage / low clock frequency

1. EEPROM read may fail at low supply voltage / low clock frequency

Trying to read EEPROM at low clock frequencies and/or low supply voltage may result in invalid data.

Problem Fix/Workaround

Do not use the EEPROM when clock frequency is below 1MHz and supply voltage is below 2V. If operating fre-

quency can not be raised above 1MHz then supply voltage should be more than 2V. Similarly, if supply voltage

can not be raised above 2V then operating frequency should be more than 1MHz.

This feature is known to be temperature dependent but it has not been characterised. Guidelines are given for

room temperature, only.

ATtiny25/45/85 [DATASHEET] 19

2586PS–AVR–06/2013

Share Link: