MC68HC908GP32_08 Datasheet, PDF (239/266 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

5.0-V Control Timing
19.7 5.0-V Control Timing
Characteristic⁽¹⁾
Frequency of operation
Crystal option
External clock option⁽²⁾
Symbol
Min
f_OSC
32
dc
Max
Unit
100
kHz
32.8
MHz
Internal operating frequency
Internal clock period (1/f_OP)
RST input pulse width low
IRQ interrupt pulse width low
(edge-triggered)
f_OP (f_BUS)
—
t_CYC
122
t_IRL
100
t_ILIH
100
8.2
MHz
—
ns
—
ns
—
ns
IRQ interrupt pulse period
Notes:
t_ILIL
(3)
—
t_CYC
1. V_SS = 0 Vdc; timing shown with respect to 20% V_DD and 70% V_DD unless otherwise noted.
2. No more than 10% duty cycle deviation from 50%
3. The minimum period, t_ILIL or t_TLTL, should not be less than the number of cycles it takes to execute the interrupt service
routine plus t_CYC.
MC68HC908GP32 Data Sheet, Rev. 10
Freescale Semiconductor
239