MC68HC05L16 Datasheet, PDF(122/146 Page) Freescale Semiconductor, Inc

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MC68HC05L16 Datasheet, PDF (122/146 Pages) Freescale Semiconductor, Inc – Microcontrollers

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Electrical Specifications

12.9 Control Timing

Characteristic(1)

Frequency of oscillation (OSC)

Crystal

External clock

Internal operating frequency(2), crystal or external

clock (fOSC/2)

VDD = 4.5 V to 5.5 V

VDD = 2.2 V to 5.5 V

Cycle time (fast OSC selected)

VDD = 4.5 V to 5.5 V

VDD = 2.2 V to 5.5 V

RESET pulse width when bus clock active

Timer

Resolution

Input capture (TCAP) pulse width

Interrupt pulse width low (edge-triggered)

Interrupt pulse period(3)

OSC1 pulse width (external clock input)

Symbol

Min

fosc

fop

Max

4.2

2.1

1.0

tcyc

480

1.0

tRL

1.5

tRESL

4.0

tTH, tTL

284

tILIH

284

tILIL

see note

tOH, tOL

110

Unit

MHz

Âµs

tcyc

1. +2.2 â¤ VDD â¤ +5.5 Vdc, VSS = 0 Vdc, TL â¤ TA â¤ TH, unless otherwise noted.

2. The system clock divider configuration (SYS1âSYS0 bits) should be selected such that the internal operating frequency

(fOP) does not exceed value specified in fOP for a given fOSC.

3. The minimum period, tILIL, should not be less than the number of cycle times it takes to execute the interrupt service routine

plus 21 tcyc.

MC68HC05L16 â¢ MC68HC705L16 Data Sheet, Rev. 4.1

122

Freescale Semiconductor

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