mc68hc908gp32 Freescale Semiconductor, Inc, mc68hc908gp32 Datasheet - Page 240

• Manufacturer Part Number: mc68hc908gp32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Electrical Specifications
19.8 3.0-V Control Timing
240
Frequency of operation
Internal operating frequency
Internal clock period (1/f
RST input pulse width low
IRQ interrupt pulse width low
IRQ interrupt pulse period
Notes:
1. V
2. No more than 10% duty cycle deviation from 50%
3. The minimum period, t
Crystal option
External clock option
(edge-triggered)
routine plus t
SS
= 0 Vdc; timing shown with respect to 20% V
CYC
.
RST
IRQ
(2)
OP
ILIL
Characteristic
)
or t
TLTL
, should not be less than the number of cycles it takes to execute the interrupt service
Figure 19-1. RST and IRQ Timing
(1)
MC68HC908GP32 Data Sheet, Rev. 10
t
t
ILIH
RL
DD
and 70% V
t
ILIL
DD
unless otherwise noted.
f
Symbol
OP
f
t
t
t
t
OSC
CYC
ILIH
IRL
ILIL
(f
BUS
)
Min
244
200
200
32
dc
—
(3)
Freescale Semiconductor
Max
16.4
100
4.1
—
—
—
—
Unit
MHz
MHz
t
kHz
CYC
ns
ns
ns