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MC68HC05P18 Datasheet, PDF (130/144 Pages) Freescale Semiconductor, Inc – Advance Information
Freescale Semiconductor, Inc.
Electrical Specifications
13.12 Control Timing (MC68HC805P18 and Low-Speed MC68HC05P18)
Characteristic(1)
Frequency of operation
Crystal option
External clock option
Internal operating frequency
Crystal (fOSC ÷ 2)
External clock (fOSC ÷ 2)
Cycle time
Crystal oscillator startup time
Stop recovery startup time (crystal oscillator)
RESET pulse width
Interrupt pulse width low (edge-triggered)
Interrupt pulse period
OSC1 pulse width
A/D on current stabilization time
RC oscillator stabilization time (A/D)
Symbol
Min
fOSC
—
dc
fOP
—
dc
tCYC
476
tOXOV
—
tILCH
—
tRL
1.5
tILIH
125
tILIL
(2)
tOH, tOL
200
tADON
—
tRCON
—
Max
Unit
4.2
MHz
4.2
2.1
MHz
2.1
—
ns
100
ms
100
ms
—
tCYC
—
ns
—
tCYC
—
ns
100
µs
5.0
µs
1. VDD = 5.0 Vdc ± 10%, VSS = 0 Vdc, TA = –40°C to +125°C, unless otherwise noted
2. The minimum period tILIL should not be less than the number of cycles it takes to execute the interrupt service routine
plus 21 tCYC.
13.13 Control Timing (High-Speed MC68HC05P18 Only)
Characteristic(1)
Symbol
Min
Max
Unit
Frequency of operation
Crystal option
External clock option
fOSC
—
dc
4.2
MHz
8.4
Internal operating frequency
Crystal (fOSC ÷ 2)
External clock (fOSC ÷ 2)
Cycle time
Crystal oscillator startup time
Stop recovery startup time (crystal oscillator)
RESET pulse width
Interrupt pulse width low (edge-triggered)
Interrupt pulse period
OSC1 pulse width
A/D on current stabilization time
RC oscillator stabilization time (A/D)
fOP
—
dc
tCYC
238
tOXOV
—
tILCH
—
tRL
1.5
tILIH
125
tILIL
(2)
tOH, tOL
100
tADON
—
tRCON
—
2.1
MHz
4.2
—
ns
100
ms
100
ms
—
tCYC
—
ns
—
tCYC
—
ns
100
µs
5.0
µs
1. VDD = 5.0 Vdc ± 10%, VSS = 0 Vdc, TA = –40°C to +125°C, unless otherwise noted
2. The minimum period tILIL should not be less than the number of cycles it takes to execute the interrupt service routine
plus 21 tCYC.
Advance Information
130
MC68HC(8)05P18 — Rev. 2.0
Electrical Specifications
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