ATTINY45 datasheet(22/30 Pages) ATMEL

Part #	ATTINY45

Description	8-bit Microcontroller with 2/4/8KBytes In-System Programmable Flash

PDF	30 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

Logo

22 / 30 page

2586L–AVR–06/10

ATtiny25/45/85

When the Memory Lock Bits LB2 and LB1 are programmed to mode 3, EEPROM read does

not work from the application code.

Problem Fix/Work around

Do not set Lock Bit Protection Mode 3 when the application code needs to read from

EEPROM.

5. 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 1 MHz and supply voltage is below

2V. If operating frequency can not be raised above 1 MHz then supply voltage should be

more than 3V. Similarly, if supply voltage can not be raised above 2V then operating fre-

quency should be more than 2 MHz.

This feature is known to be temperature dependent but it has not been characterised.

Guidelines are given for room temperature, only.

ATTINY45 Datasheet(PDF) 22 Page - ATMEL Corporation