mc68hc705j2 Freescale Semiconductor, Inc, mc68hc705j2 Datasheet - Page 76

• Manufacturer Part Number: mc68hc705j2
• Description: 8-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

10.7 Control Timing (V
MC68HC705J2
(V
Oscillator Frequency
Internal Operating Frequency
Cycle Time
RESET Pulse Width
Timer Resolution (NOTE 1)
Interrupt Pulse Width Low (Edge-Triggered)
Interrupt Pulse Period
OSC1 Pulse Width
NOTES:
DD
1. The 2-bit timer prescaler is the limiting factor in determining timer resolution.
2. The minimum period t
Crystal Option
External Clock Option
Crystal (f osc
External Clock (f osc
= 3.3 Vdc 10%, V
the interrupt service routine plus 19 t cyc .
Characteristic
Table 10-6. Control Timing (V
2)
SS
2)
DD
= 0 Vdc; T
ELECTRICAL SPECIFICATIONS
ILIL
should not be less than the number of cycle times it takes to execute
= 3.3 Vdc)
A
= T
L
to T
H
)
Symbol
t
OH
t
f osc
t cyc
RESL
t
t
f op
t
ILIH
ILIL
RL
, t
OL
D D
(NOTE 2)
1000
Min
250
400
1.5
4.0
= 3.3 Vdc)
—
dc
—
dc
M a x
2.0
2.0
1.0
1.0
—
—
—
—
—
—
Unit
MHz
MHz
t cyc
t cyc
t cyc
ns
ns
ns
MOTOROLA
10-9