MC68HC908JL3E Datasheet, PDF(220/226 Page) Motorola, Inc – Microcontrollers

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MC68HC908JL3E Datasheet, PDF (220/226 Pages) Motorola, Inc – Microcontrollers

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MC68HLC908JL3E/JK3E/JK1E

A.6.3 Control Timing

Table A-3. Control Timing

Characteristic(1)

Symbol

Min

Max

Unit

Internal operating frequency(2)

fOP

â

2

MHz

RST input pulse width low(3)

tIRL

1.5

â

Âµs

NOTES:

1. VDD = 2.2 Vdc, VSS = 0 Vdc, TA = TL to TH; timing shown with respect to 20% VDD and 70% VDD, unless otherwise noted.

2. Some modules may require a minimum frequency greater than dc for proper operation; see appropriate table for this infor-

mation.

3. Minimum pulse width reset is guaranteed to be recognized. It is possible for a smaller pulse width to cause a reset.

A.6.4 Oscillator Characteristics

Table A-4. Oscillator Component Specifications

Characteristic

Symbol Min

Crystal frequency, XTALCLK

fOSCXCLK

â

External clock

reference frequency(1)

fOSCXCLK

dc

Crystal load capacitance(2)

CL

â

Crystal fixed capacitance(2)

C1

â

Crystal tuning capacitance(2)

C2

â

Feedback bias resistor

RB

â

Series resistor(2), (3)

RS

â

NOTES:

1. No more than 10% duty cycle deviation from 50%

2. Consult crystal vendor data sheet

3. Not Required for high frequency crystals

Typ

â

â

â

2 Ã CL

2 Ã CL

10 Mâ¦

â

Max

8

8

â

â

â

â

â

Unit

MHz

MHz

Technical Data

220

MC68H(R)C908JL3E/JK3E/JK1E â Rev. 2.0

MC68HLC908JL3E/JK3E/JK1E

MOTOROLA

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