Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Hoja De Datos

 1304

SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

Note:

1. These characteristics apply only when the 32.768KHz Oscillator is in bypass mode (i.e. when RCEN = 0, OSC32EN = 0, 

OSCSEL = 1 and OSC32BYP = 1) in the SCKCR register. See “Slow Clock Selection” in the PMC section.

XIN32 Clock Electrical Characteristics

1/(t

CPXIN32

)

XIN32 Clock Frequency

44

kHz

t

CPXIN32

XIN32 Clock Period

22

μs

t

CHXIN32

XIN32 Clock High Half-period

11

μs

t

CLXIN32

XIN32 Clock Low Half-period

11

μs

t

CLCH32

XIN32 Clock Rise time

400

ns

t

CLCL32

XIN32 Clock Fall time

400

ns

C

IN32

XIN32 Input Capacitance

6

pF

R

IN32

XIN32 Pulldown Resistor

4

M

Ω

V

IN32

XIN32 Voltage

VDDBU

VDDBU

V

V

INIL32

XIN32 Input Low Level Voltage

-0.3

0.3 x V

VDDBU

V

V

INIH32

XIN32 Input High Level Voltage

0.7 x V

VDDBU

V

VDDBU

 + 0.3

V

RC Oscillator Characteristics

1/(t

CPRCz

)

Crystal Oscillator Frequency

22

42

kHz

Duty Cycle

45

55

%

t

ST

Startup Time

75

μs