MC68HC705C4ACB MOTOROLA [Motorola, Inc], MC68HC705C4ACB Datasheet - Page 175
MC68HC705C4ACB
Manufacturer Part Number
MC68HC705C4ACB
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC705C4ACB.pdf
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13.9 5.0-Volt Control Timing
MC68HC705C4A • MC68HSC705C4A — Rev. 3.0
MOTOROLA
Frequency of operation
Internal operating frequency
Cycle time (see
Crystal oscillator startup time (see
Stop recovery startup time (crystal oscillator)
RESET pulse width (see
Timer
Interrupt pulse width low (edge-triggered)
Interrupt pulse period
OSC1 pulse width
1. V
2. Since a 2-bit prescaler in the timer must count four internal cycles (t
3. The minimum period, t
4. The minimum period, t
Crystal option
External clock option
Crystal (f
External clock (f
(see
Resolution
Input capture pulse width (see
Input capture pulse period (see
(see
(see
the timer resolution.
vice routine plus 24 t
plus 19 t
DD
= 5.0 Vdc
Figure
Figure 4-2. External Interrupt
Figure 4-2. External Interrupt
CYC
OSC
(2)
.
13-6)
Figure
10%, V
2)
OSC
Characteristic
CYC
ILIL
TLTL
13-7)
SS
.
2)
Figure
, should not be less than the number of cycle times it takes to execute the interrupt service routine
, should not be less than the number of cycle times it takes to execute the capture interrupt ser-
= 0 Vdc; T
13-7)
Figure
Figure
Figure
(1)
A
= T
Timing)
Timing)
13-5)
L
13-5)
13-7)
to T
Electrical Specifications
H
Symbol
t
t
OH
t
TH
t
f
OXOV
t
t
t
RESL
t
TLTL
t
CYC
ILCH
OSC
f
CYC
t
ILIH
ILIL
OP
RL
, t
, t
TL
OL
), this is the limiting minimum factor in determining
Min
480
125
125
4.0
—
dc
—
dc
—
—
90
(3)
(4)
8
Electrical Specifications
5.0-Volt Control Timing
Max
100
100
4.2
4.2
2.1
2.1
—
—
—
—
—
—
—
—
Technical Data
MHz
MHz
Unit
t
t
t
t
CYC
CYC
CYC
CYC
ms
ms
ns
ns
ns
ns
175
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