August 27, 1998
GENERAL RELEASE SPECIFICATION
18.8 CONTROL TIMING
Characteristic
Symbol
Min
Max
Unit
Frequency of Oscillation (OSC)
Crystal Oscillator Option
External Clock Source
f
f
f
f
0.1
DC
1.5
0.5
4.2
4.2
5.8
4
MHz
MHz
MHz
kHz
OSC
OSC
OSC
OSC
2
Internal VCO (SCLK = 0)
2
Internal VCO (SCLK = 1)
Internal Operating Frequency, Crystal or External Clock (f
Crystal Oscillator Option
/2)
OSC
f
f
0.05
DC
2.1
2.1
MHz
MHz
OP
OP
External Clock Source
Cycle Time
Crystal Oscillator or External Clock source
t
476
—
ns
CYC
Timer
Resolution
Input Capture (TCAP) pulse width
t
4.0
284
—
—
t
t
RESL
, t
CYC
ns
t
t
TH TL
Interrupt Pulse Width Low (Edge-Triggered)
Interrupt Pulse Period
t
284
see note 3
110
—
—
—
ns
ILIH
t
ILIL
CYC
OSC1 Pulse Width (external clock input)
,t
ns
OH OL
Voltage Comparator Switching Time
(10 mV overdrive, either input)
t
—
10
µs
PROP
Voltage Comparator Power Up Delay
(Bias Circuit already powered up)
t
—
—
100
10
µs
µs
DELAY
External Capacitor Switching Time (I
to I
)
t
PROP
DIS
RAMP
External Capacitor Current Source Power Up Delay
(Bias Circuit already powered up)
t
t
—
—
100
100
µs
µs
DELAY
Bias Circuit Power Up Delay
DELAY
NOTES:
1.
V
=5V ± 10%, V = 0 V, T ≤ T ≤ T , unless otherwise noted.
DD SS L A H
2. Due to process variations, operating voltages, and temperature requirements, the quoted VCO fre-
quencies are typical limits, and should be treated as reference only. It is the user’s responsibility to
ensure that the resulting internal operating frequency meets user’s requirement by setting the appropri-
ate value in the VCO Adjust Register.
3. The minimum period t
should not be less than the number of cycle times it takes to execute the inter-
ILIL
rupt service routine plus 21 t
.
CYC
MC68HC05SB7
REV 2.1
ELECTRICAL SPECIFICATIONS
MOTOROLA
18-5
FREESCALE [ Freescale ]
