S3C9442 View Datasheet(PDF) - Samsung

Part Name

Description

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S3C9442

SAM88RCRI family of 8-bit single-chip CMOS microcontrollers

Samsung 

S3C9442/C9444/F9444/C9452/C9454/F9454

ELECTRICAL DATA

(TA = – 40°C to + 85°C)

Table 13-4. Oscillator Characteristics

Oscillator

Main crystal or

ceramic

Clock Circuit

C1

XIN

Test Condition

VDD = 4.5 to 5.5 V

Min Typ Max Unit

1

–

10

MHz

C2

XOUT

External clock

(Main System)

External RC

oscillator

Internal RC

Oscillator

VDD = 2.7 to 4.5 V

VDD = 2.0 to 2.7 V

XIN

VDD = 4.5 to 5.5 V

XOUT

–

VDD = 2.7 to 4.5 V

VDD = 2.0 to 2.7 V

VDD = 4.75 to 5.25 V

Tolerance:10 %

VDD = 4.75 to 5.25 V

1

–

6

MHz

1

–

3

MHz

1

–

10

MHz

1

–

6

MHz

1

–

3

MHz

–

4

–

MHz

3.2

0.5

Table 13-5. Oscillation Stabilization Time

(TA = - 40 °C to + 85 °C, VDD = 3.0 V to 5.5 V)

Oscillator

Test Condition

Min

Typ

Max

Unit

Main crystal

fOSC > 1.0 MHz

–

–

20

ms

Main ceramic

Oscillation stabilization occurs when VDD is

–

equal to the minimum oscillator voltage range.

–

10

ms

External clock

(main system)

Oscillator

stabilization

XIN input high and low width (tXH, tXL)

tWAIT when released by a reset (1)

25

–

500

ns

–

216/fOSC

–

ms

wait time

tWAIT when released by an interrupt (2)

–

–

–

ms

NOTES:

1. fOSC is the oscillator frequency.

2. The duration of the oscillator stabilization wait time, tWAIT, when it is released by an interrupt is determined by the

settings in the basic timer control register, BTCON.

13-5

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