MCP2515
TABLE 13-5: CLKOUT PIN AC CHARACTERISTICS
Industrial (I):
Extended (E): TAMB = -40°C to +125°C
TAMB = -40°C to +85°C
VDD = 2.7V to 5.5V
VDD = 4.5V to 5.5V
CLKOUT Pin AC/DC Characteristics
Param.
No.
Sym
Characteristic
Min
Max
Units
Conditions
t CLKOUT CLKOUT Pin High Time
15
15
—
—
—
5
ns
ns
ns
TOSC = 40 ns (Note 1)
h
t CLKOUT CLKOUT Pin Low Time
TOSC = 40 ns (Note 1)
l
t CLKOUT CLKOUT Pin Rise Time
Measured from 0.3 VDD to 0.7 VDD
r
(Note 1)
t CLKOUT CLKOUT Pin Fall Time
—
5
ns
Measured from 0.7 VDD to 0.3 VDD
f
(Note 1)
t CLKOUT CLOCKOUT Propagation Delay
—
—
—
100
ns
ns
ns
Note 1
Note 1
d
15
16
t SOF
Start-Of-Frame High Time
2 TOSC
h
t SOF
Start-Of-Frame Propagation
Delay
2 TOSC +
0.5 TQ
Measured from CAN bit sample
point. Device is a receiver.
d
CNF1.BRP<5:0> = 0 (Note 2)
Note 1: All CLKOUT mode functionality and output frequency is tested at device frequency limits, however, CLKOUT prescaler
is set to divide by one. This parameter is periodically sampled and not 100% tested.
2: Design guidance only, not tested.
FIGURE 13-1:
START-OF-FRAME PIN AC CHARACTERISTICS
16
RXCAN
sample point
15
DS21801D-page 72
Preliminary
© 2005 Microchip Technology Inc.
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