ATmega128-16AU datasheet(41/386 Pages) ATMEL

부품명	ATmega128-16AU

상세설명	8-bit Microcontroller with 128K Bytes In-System Programmable Flash

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제조업체	ATMEL [ATMEL Corporation]

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41 / 386 page

41

2467S–AVR–07/09

ATmega128

External RC

Oscillator

For timing insensitive applications, the External RC configuration shown in Figure 20 can be

used. The frequency is roughly estimated by the equation f = 1/(3RC). C should be at least 22

pF. By programming the CKOPT fuse, the user can enable an internal 36 pF capacitor between

XTAL1 and GND, thereby removing the need for an external capacitor. For more information on

Oscillator operation and details on how to choose R and C, refer to the External RC Oscillator

application note.

Figure 20. External RC Configuration

The Oscillator can operate in four different modes, each optimized for a specific frequency

range. The operating mode is selected by the fuses CKSEL3..0 as shown in Table 11.

When this Oscillator is selected, start-up times are determined by the SUT fuses as shown in

Table 12.

Note:

1. This option should not be used when operating close to the maximum frequency of the device.

Table 11. External RC Oscillator Operating Modes

CKSEL3..0

Frequency Range (MHz)

0101

0.1 - 0.9

0110

0.9 - 3.0

0111

3.0 - 8.0

1000

8.0 - 12.0

Table 12. Start-Up Times for the External RC Oscillator Clock Selection

SUT1..0

Start-up Time from

Power-down and

Power-save

Additional Delay

from Reset

(VCC = 5.0V)

Recommended Usage

00

18 CK

–

BOD enabled

01

18 CK

4.1 ms

Fast rising power

10

18 CK

65 ms

Slowly rising power

11

6 CK(1)

4.1 ms

Fast rising power or BOD enabled

XTAL2

XTAL1

GND

C

R

VCC

NC

유사한 부품 번호 - ATmega128-16AU

제조업체	부품명	데이터시트	상세설명
ATMEL Corporation	ATMEGA128-16AU	317Kb / 31P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467OS-AVR-10/06
	ATMEGA128-16AU	6Mb / 386P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467R-AVR-06/08
	ATmega128-16AU	613Kb / 26P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467S-AVR-07/09
	ATMEGA128-16AU	481Kb / 24P	Microcontroller with 128KBytes In-System Programmable Flash Rev. 2467XS-AVR-06/11
	ATMEGA128-16AUR	481Kb / 24P	Microcontroller with 128KBytes In-System Programmable Flash Rev. 2467XS-AVR-06/11

More results

유사한 설명 - ATmega128-16AU

제조업체	부품명	데이터시트	상세설명
ATMEL Corporation	ATMEGA1284P	6Mb / 380P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash 8059D-AVR-11/09
	ATMEGA128A	555Kb / 21P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 8151DS-AVR-07/09
	ATMEGA128	349Kb / 16P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467CS-AVR-02/02
	ATMEGA1284P	374Kb / 20P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash 8059DS-AVR-11/09
	ATMEGA128	6Mb / 386P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467R-AVR-06/08
	ATMEGA128	360Kb / 16P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467XS-AVR-06/11
	ATMEGA103	2Mb / 141P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash
	ATMEGA128	317Kb / 31P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467OS-AVR-10/06
	ATMEGA128A	561Kb / 22P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash
	ATMEGA1284P	416Kb / 20P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash 8059BS-AVR-05/08

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ATmega128-16AU 데이터시트(PDF) 41 Page - ATMEL Corporation

ATmega128-16AU 데이터시트(HTML) 41 Page - ATMEL Corporation

유사한 부품 번호 - ATmega128-16AU

유사한 설명 - ATmega128-16AU

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