AT90PWM2 datasheet(301/361 Pages) ATMEL

No. de pieza	AT90PWM2

Descripción Electrónicos	8-bit Microcontroller with 8K Bytes In-System Programmable Flash

PDF	361 Pages

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Fabricante Electrónico	ATMEL [ATMEL Corporation]

Página de inicio	http://www.atmel.com

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301

4317J–AVR–08/10

AT90PWM2/3/2B/3B

5. Minimum VCC for Power-down is 2.5V.

6. The Analog Comparator Propogation Delay equals 1 comparator clock plus 30 nS. See “Analog Comparator” on page 226.

for comparator clock definition.

26.3

External Clock Drive Characteristics

26.3.1

Calibrated Internal RC Oscillator Accuracy

26.3.2

External Clock Drive Waveforms

Figure 26-1. External Clock Drive Waveforms

26.3.3

External Clock Drive

Table 26-1.

Calibration Accuracy of Internal RC Oscillator

Frequency

Temperature

Calibration Accuracy

Factory

Calibration

8.0 MHz

°C±10%

User

Calibration

7.3 - 8.1 MHz

2.7V - 5.5V

-40

°C - 85°C±1%

VIL1

VIH1

Table 26-2.

External Clock Drive

Symbol

Parameter

VCC=1.8-5.5V

VCC=2.7-5.5V

VCC=4.5-5.5V

Units

Min.

Max.

Min.

Max.

Min.

Max.

1/tCLCL

Oscillator

Frequency

MHz

tCLCL

Clock Period

250

100

tCHCX

High Time

100

tCLCX

Low Time

100

tCLCH

Rise Time

2.0

1.6

0.5

μs

tCHCL

Fall Time

2.0

1.6

0.5

μs

Δt

CLCL

Change in period

from one clock

cycle to the next

AT90PWM2 Datasheet(PDF) 301 Page - ATMEL Corporation

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