68HC705JB4 datasheet(123/134 Pages) FREESCALE

123 / 134 page

February 24, 1999

GENERAL RELEASE SPECIFICATION

MC68HC05JB4

ELECTRICAL SPECIFICATIONS

MOTOROLA

REV 2

13-5

13.6

CONTROL TIMING

NOTES:

The minimum period tILIL or tIHIH should not be less than the number of cycles it takes to execute the

interrupt service routine plus 19 tCYC.

Table 13-4. Control Timing

(VDD = 4.2V to 5.5V, VSS = 0 Vdc, TA = 0°C to +70°C, unless otherwise noted)

Characteristic

Symbol

Min

Max

Units

Frequency of Operation

Crystal Oscillator Option

External Clock Source

fOSC

—

MHz

Internal Operating Frequency

Crystal Oscillator (fOSC ÷ 2)

External Clock (fOSC ÷ 2)

fOP

—

MHz

Cycle Time (1/fOP)tCYC

330

—

RESET Pulse Width Low

tRL

1.5

—

tCYC

IRQ Interrupt Pulse Width Low (Edge-Triggered)

tILIH

0.5

—

tCYC

IRQ Interrupt Pulse Period

tILIL

note 1

—

tCYC

PA0 to PA3 Interrupt Pulse Width High

(Edge-Triggered)

tIHIL

0.5

—

tCYC

PA0 to PA3 Interrupt Pulse Period

tIHIH

note 1

—

tCYC

OSC1 Pulse Width

tOH, tOL

——

Output High to Low Transition Period on

PA6, PA7, PB0-4

tSLOW

0.5 (typical)

tCYC

Freescale Semiconductor, Inc.

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