ATMEGA8U2 データシートの表示（PDF） - Atmel Corporation

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ATMEGA8U2

8-bit Microcontroller with 8/16/32K Bytes of ISP Flash and USB Controller

Atmel Corporation 

ATmega8U2/16U2/32U2

11. Datasheet Revision History

Please note that the referring page numbers in this section are referred to this document. The

referring revision in this section are referring to the document revision.

11.1 Rev.7799E – 09/12

1. Renamed package name in Figure 1-1 on page 2 from VQFP32 to TQFP32.

2. Corrected typos.

11.2 Rev. 7799D – 11/10

1. Updated the footnote on page 2. Removed the VQFP from the footnote

2. Updated Section 20-4 ”Typical Bus powered application with 3.3V I/O” on page 187.

3. Updated Figure 20-6 on page 188. By connecting UVCC to 3V power-supply.

4. Updated Table 21-2 on page 215. 10: Bulk Type, and 01: Isochronous Type

5. Added UVCC limits in Electrical Characteristics

6.

Updated “Electrical Characteristics” on page 264. Added USB D+ Internal Pull-up (streaming

mode)

7. Updated “Register Summary” on page 7. Added DIDR1 (adress: 0x7F)

8. Removed Figure 27-26: USB Regulator Consumption with load 75 vs. Vcc

11.3 Rev. 7799C – 12/09

1. Updated “Features” on page 1.

2. Added description of “AVCC” on page 4.

3. Updated Figure 7-2 on page 18.

4. Updated Figure 20-3 on page 186 and Figure 20-4 on page 187.

5. Updated “Fuse Bits” on page 247.

6. Updated “DC Characteristics” on page 264.

7. Updated Table 26-3 on page 267, by removing Vrst.

8. Updated Table 26-4 on page 268.

9. Updated “Typical Characteristics” on page 273.

10. Added new “Errata” on page 18.

11.4 Rev. 7799B – 06/09

1. Updated “Typical Characteristics” on page 273.

20

7799ES–AVR–09/2012

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