AT90PWM3-16SQ データシートの表示（PDF） - Atmel Corporation

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AT90PWM3-16SQ

8-bit Atmel Microcontroller with 8K Bytes In-System Programmable Flash

Atmel Corporation 

AT90PWM2/3/2B/3B

Table 7-9. Start-up Times when the PLL is selected as system clock

CKSEL

3..0

SUT1..0

00

Start-up Time from Power-down

and Power-save

1K CK

Additional Delay from Reset

(VCC = 5.0V)

14CK

0101

01

Ext Osc

10

1K CK

16K CK

14CK + 4 ms

14CK + 4 ms

11

00

0001

01

Ext Clk

10

16K CK

6 CK (1)

6 CK (2)

6 CK (3)

14CK + 64 ms

14CK

14CK + 4 ms

14CK + 64 ms

11

Reserved

1.

This value do not provide a proper restart ; do not use PD in this clock scheme

2.

This value do not provide a proper restart ; do not use PD in this clock scheme

3.

This value do not provide a proper restart ; do not use PD in this clock scheme

Figure 7-4. PCK Clocking System AT90PWM2/3

OSCCAL

PLLE

PLLF

Lock

Detector

RC OSCILLATOR 8 MHz

DIVIDE

PLL

BY 8

64x

XTAL1

XTAL2

OSCILLATORS

DIVIDE

BY 2

DIVIDE

BY 4

PLOCK

CLK PLL

CK SOURCE

36

4317K–AVR–03/2013

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