Datasheet

© 2007 Microchip Technology Inc. DS21291F-page 63
MCP2510
TABLE 12-2: OSCILLATOR TIMING CHARACTERISTICS
TABLE 12-3: CAN INTERFACE AC CHARACTERISTICS
TABLE 12-4: CLKOUT PIN AC/DC CHARACTERISTICS
Oscillator Timing Characteristics
Industrial (I): T
AMB = -40°C to +85°C VDD = 3.0V to 5.5V
Extended (E): T
AMB = -40°C to +125°C VDD = 4.5V to 5.5V
Param.
No.
Sym Characteristic Min Max Units Conditions
F
OSC Clock In Frequency 1
1
25
16
MHz
MHz
4.5V to 5.5V
3.0V to 4.5V
T
OSC Clock In Period 40
62.5
1000
1000
ns
ns
4.5V to 5.5V
3.0V to 4.5V
T
DUTY Duty Cycle (External Clock
Input)
0.45 0.55 — TOSH / (TOSH + TOSL)
Note: This parameter is periodically sampled and not 100% tested.
CAN Interface AC Characteristics
Industrial (I): T
AMB = -40°C to +85°C VDD = 3.0V to 5.5V
Extended (E): T
AMB = -40°C to +125°C VDD = 4.5V to 5.5V
Param.
No.
Sym Characteristic Min Max Units Conditions
T
WF Wakeup Noise Filter
50 — ns
T
DCLK CLOCKOUT Propagation
Delay
—100ns
CLKOUT Pin AC/DC Characteristics
Industrial (I): T
AMB = -40°C to +85°C VDD = 3.0V to 5.5V
Extended (E): T
AMB = -40°C to +125°C VDD = 4.5V to 5.5V
Param.
No.
Sym Characteristic Min Max Units Conditions
t
h
CLKOUT
CLKOUT Pin High Time 15 — ns
T
OSC = 40 ns (Note)
t
l
CLKOUT
CLKOUT Pin Low Time 15 — ns
T
OSC = 40 ns (Note)
t
r
CLKOUT
CLKOUT Pin Rise Time — 5 ns
Measured from 0.3 V
DD to 0.7 VDD
(Note)
t
f
CLKOUT
CLKOUT Pin Fall Time — 5 ns
Measured from 0.7 V
DD to 0.3 VDD
(Note)
t
d
CLKOUT
CLOCKOUT Propagation Delay — 100 ns
Note: CLKOUT prescaler set to divide by one.