mc68hc05j1a Freescale Semiconductor, Inc, mc68hc05j1a Datasheet - Page 106

• Manufacturer Part Number: mc68hc05j1a
• Description: M68hc05 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Electrical Specifications
10.10 3.3-Volt Control Timing
Technical Data
Oscillator frequency
Internal operating frequency (f
Cycle time (1
RESET pulse width low (edge-triggered)
Timer resolution
IRQ interrupt pulse width low (edge-triggered)
IRQ interrupt pulse period
PA3–PA0 interrupt pulse width high (edge-triggered)
PA3–PA0 interrupt pulse period
OSC1 pulse width
1. V
2. Use only AT-cut crystals.
3. The 2-bit timer prescaler is the limiting factor in determining timer resolution.
4. The minimum period, t
Crystal/ceramic resonator mask option
RC oscillator mask option
External clock mask option
Crystal oscillator
Ceramic resonator
RC oscillator
External clock
routine plus 19
DD
= 3.3 Vdc
f
op
(3)
t
cyc
10%; V
)
.
Characteristic
ILIL
SS
or t
= 0 Vdc; T
IHIH
OSC
Freescale Semiconductor, Inc.
, should not be less than the number of cycles required to execute the interrupt service
For More Information On This Product,
(1)
A
2)
= T
L
(2)
Go to: www.freescale.com
to T
Electrical Specifications
H
Symbol
t
OH
t
f
RESL
t
t
t
t
OSC
t
t
IHIH
f
ILIH
IHIL
ILIL
cyc
RL
op
, t
OL
1000
Min
250
250
400
1.5
4.0
(4)
—
dc
—
—
—
dc
—
(4)
MC68HC05J1A — Rev. 3.0
Max
2.0
2.0
2.0
1.0
1.0
1.0
1.0
—
—
—
—
—
—
—
—
MHz
MHz
Unit
t
t
t
t
ns
ns
ns
ns
cyc
cyc
cyc
cyc