MC68HC705J MOTOROLA [Motorola, Inc], MC68HC705J Datasheet - Page 107

• Manufacturer Part Number: MC68HC705J
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

8.5 External Interrupt Timing
8.5.1 5.0-Volt External Interrupt Timing Characteristics
8.5.2 3.3-Volt External Interrupt Timing Characteristics
MC68HC705J1A — Rev. 4.0
MOTOROLA
IRQ interrupt pulse width low (edge-triggered)
IRQ interrupt pulse width (edge- and level-triggered)
PA0–PA3 interrupt pulse width high (edge-triggered)
PA0–PA3 interrupt pulse width high (edge- and level-triggered)
IRQ interrupt pulse width low (edge-triggered)
IRQ interrupt pulse width (edge- and level-triggered)
PA0–PA3 interrupt pulse width high (edge-triggered)
PA0–PA3 interrupt pulse width high (edge- and level-triggered)
1. V
2.
3. The minimum, t
1. V
2.
3. The minimum, t
t
t
cyc
cyc
DD
DD
= 1/f
= 1/f
= 5.0 Vdc
= 3.3 Vdc
IRQ (INTERNAL)
op
op
; f
; f
IRQ PIN
op
op
IRQ
IRQ
= f
= f
ILIL
ILIL
.
.
.
10%, V
10%, V
1
n
osc
osc
, should not be less than the number of interrupt service routine cycles plus 19 t
, should not be less than the number of interrupt service routine cycles plus 19
/2.
/2.
SS
SS
Characteristic
Characteristic
= 0 Vdc, T
= 0 Vdc, T
Figure 8-4. External Interrupt Timing
t
ILIH
A
A
= –40 C to +105 C unless otherwise noted
= –40 C to +105 C, unless otherwise noted
External Interrupt Module (IRQ)
(1)
(1)
t
ILIH
t
ILIL
Symbol
Symbol
t
t
t
t
t
t
t
t
ILIH
ILIH
ILIH
ILIL
ILIH
ILIH
ILIH
ILIL
External Interrupt Module (IRQ)
Min
1.5
1.5
1.5
1.5
Min
1.5
1.5
1.5
1.5
External Interrupt Timing
t
cyc
cyc
.
Note
Note
.
Note
Note
Max
Max
—
—
—
—
Technical Data
(3)
(3)
(3)
(3)
t
t
Unit
cyc
Unit
cyc
t
t
t
t
t
t
cyc
cyc
cyc
cyc
cyc
cyc
(2)
(2)
107