MC68HC05P4A Datasheet, PDF (64/72 Pages) Advanced Analogic Technologies – Microcontrollers

Electrical Specifications
12.10 3.3-Volt Control Timing
Characteristic
Symbol
Min
Max
Unit
Frequency of operation
Crystal Option
External Clock Option
f_osc
—
2.0
MHz
dc
2.0
Internal operating frequency
Crystal (f_osc ÷ 2)
External clock (f_osc ÷ 2)
f_op
—
1.0
MHz
dc
1.0
Cycle time
t_cyc
1000
—
ns
Crystal oscillator startup time
t_OXOV
—
100
ms
Stop recovery startup time (crystal oscillator)
t_ILCH
—
100
ms
RESET pulse width, excluding powerup
t_RL
1.5
—
t_cyc
Interrupt pulse width low (edge-triggered)
t_ILIH
250
—
ns
Interrupt pulse period
t_ILIL
*
—
t_cyc
OSC1 pulse width
t_OH, t_OL
200
—
ns
Notes:
1. V_DD = 3.3 Vdc ± 10%, V_SS = 0 Vdc, T_A = –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 t_cyc
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