MC68HC05P4A View Datasheet(PDF) - Advanced Analogic Technologies
Part Name
Description
MFG CO.
'MC68HC05P4A' PDF : 72 Pages View PDF
Electrical Specifications
12.10 3.3-Volt Control Timing
Characteristic
Symbol
Min
Max
Unit
Frequency of operation
Crystal Option
External Clock Option
fosc
—
2.0
MHz
dc
2.0
Internal operating frequency
Crystal (fosc ÷ 2)
External clock (fosc ÷ 2)
fop
—
1.0
MHz
dc
1.0
Cycle time
tcyc
1000
—
ns
Crystal oscillator startup time
tOXOV
—
100
ms
Stop recovery startup time (crystal oscillator)
tILCH
—
100
ms
RESET pulse width, excluding powerup
tRL
1.5
—
tcyc
Interrupt pulse width low (edge-triggered)
tILIH
250
—
ns
Interrupt pulse period
tILIL
*
—
tcyc
OSC1 pulse width
tOH, tOL
200
—
ns
Notes:
1. VDD = 3.3 Vdc ± 10%, VSS = 0 Vdc, TA = –40°C to +85°C, unless otherwise noted
*The minimum period tILIL should not be less than the number of cycles it takes to execute the interrupt service routine plus 19 tcyc.
OSC 1
t RL
RESET
t ILIH
IRQ 2
IRQ 3
4064 tcyc
INTERNAL
CLOCK
INTERNAL
ADDRESS
BUS
1FFE
1FFE
1FFE
1FFE
1FFE
1FFF4
Notes:
1. Represents the internal clocking of the OSC1 pin.
2. IRQ pin edge-sensitive mask option
3. IRQ pin level- and edge-sensitive mask option
4. RESET vector address shown for timing example
RESET OR INTERRUPT
VECTOR FETCH
Figure 12-2. STOP Recovery Timing
MC68HC05P4A Data Sheet, Rev. 7.1
64
Freescale Semiconductor
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