ATTINY43U(2009) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATTINY43U
(Rev.:2009)

8-bit Microcontroller with 4K Bytes In-System Programmable Flash and Boost Converter

Atmel Corporation 

8. Errata

8.1 ATtiny43U

8.1.1 Rev. C

8.1.2 Rev. B

8.1.3 Rev. A

The revision letter in this section refers to the revision of the ATtiny43U device.

• Increased Probability of Boost Converter Entering Active Low Current Mode

1. Increased Probability of Boost Converter Entering Active Low Current Mode

The boost converter may enter and stay in Active Low Current Mode at supply voltages and

load currents higher than those specified. This is due to high switching currents in bonding

wires of the SOIC package. Devices packaged in MLF are not affected.

Problem Fix / Workaround

Add a 1.5nF capacitor between pins LSW and GND of the SOIC package. Also, increase the

value of the by-pass capacitor between pins VCC and GND to at least 30µF.

Alternatively, use the device in MLF, without modifications.

Not sampled.

Not sampled.

14 ATtiny43U

8048BS–AVR–03/09

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