dsPIC30F6010
DS70119B-page 178
Advance Information
2004 Microchip Technology Inc.
TABLE 24-12: EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V
(unless otherwise stated)
Operating temperature
-40°C
≤
T
A
≤
+85°C for Industrial
-40
°
C
≤
T
A
≤
+125°C for Extended
Param
No.
Symbol
Characteristic
Min
Typ
(1)
Max
Units
Conditions
OS10
F
OSC
External CLKIN Frequency
(2)
(External clocks allowed only
in EC mode)
DC
4
4
4
—
—
—
—
40
10
10
7.5
MHz
MHz
MHz
MHz
EC
EC with 4x PLL
EC with 8x PLL
EC with 16x PLL
Oscillator Frequency
(2)
DC
0.4
4
4
4
4
10
31
—
—
—
—
—
—
—
—
—
—
8
512
4
4
10
10
10
7.5
25
33
—
—
MHz
MHz
MHz
MHz
MHz
MHz
MHz
kHz
MHz
kHz
RC
XTL
XT
XT with 4x PLL
XT with 8x PLL
XT with 16x PLL
HS
LP
FRC internal
LPRC internal
OS20
T
OSC
T
OSC
= 1/F
OSC
—
—
—
—
See parameter OS10 for
F
OSC
value
OS25
T
CY
Instruction Cycle Time
(2)(3)
33
—
DC
ns
OS30
TosL,
TosH
External Clock
(2)
in (OSC1)
High or Low Time
TBD
TBD
TBD
TBD
—
—
—
—
—
ns
ns
µ
s
ns
XTL osc
XT osc
LP osc
HS osc
OS31
TosR,
TosF
External Clock
(2)
in (OSC1)
Rise or Fall Time
—
—
—
—
—
TBD
TBD
TBD
TBD
ns
ns
ns
ns
XTL osc
XT osc
LP osc
HS osc
OS40
TckR
CLKOUT Rise Time
(2)(4)
—
6
10
ns
OS41
TckF
CLKOUT Fall Time
(2)(4)
—
6
10
ns
Note 1:
Data in “Typ” column is at 5V, 25°C unless otherwise stated. Parameters are for design guidance only and
are not tested.
2:
These parameters are characterized but not tested in manufacturing.
3:
Instruction cycle period (T
CY
) equals four times the input oscillator time-base period. All specified values
are based on characterization data for that particular oscillator type under standard operating conditions
with the device executing code. Exceeding these specified limits may result in an unstable oscillator
operation and/or higher than expected current consumption. All devices are tested to operate at “min.”
values with an external clock applied to the OSC1/CLKI pin. When an external clock input is used, the
“Max.” cycle time limit is “DC” (no clock) for all devices.
4:
Measurements are taken in EC or ERC modes. The CLKOUT signal is measured on the OSC2 pin.
CLKOUT is low for the Q1-Q2 period (1/2 T
CY
) and high for the Q3-Q4 period (1/2 T
CY
).
Summary of Contents for dsPIC30F6010
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