SPSB081 datasheet(71/137 Pages) STMICROELECTRONICS

71 / 137 page

Symbol

Parameter

Condition

Min Typ

Max Unit Item

Recessive bit

symmetry at RXDC

Test signal to be applied on the TXD input of the

implementation is a square wave signal with a

positive duty cycle of 1/6 and a period of six times

the nominal recessive bit width

Rectangular pulse signal TTXDC = 6000 ns, high

pulse 1000 ns, low pulse 5000 ns

TBit(RXD)_150 ohm

≤ 1 Mb/s

RL = 150 Ω

Other conditions as TBit(RXD) ≤ 1 Mb/s

Value may be obtained by characterization only.

800

1050

E.052

TBit(RXD) ≤ 2

Mb/s

Conditions as TBit(RXD) ≤ 1 Mb/s

Rectangular pulse signal TTXDC = 3000 ns, high

pulse 500 ns, low pulse 2500 ns

400 500

550

E.053

TBit(RXD)_150 ohm

≤ 2Mb/s

RL=150 Ω

other conditions as TBit(RXD) ≤ 1 Mb/s

Value may be obtained by characterization only

300

550

E.054

TBit(RXD) ≤ 5

Mb/s

Conditions as TBit(RXD) ≤ 1 Mb/s

Rectangular pulse signal TTXDC = 1200 ns, high

pulse 200 ns, low pulse 1000 ns

120 200

220

E.055

TBit(BUS) ≤ 1

Mb/s

Recessive bit

symmetry at CAN-

Bus

5.5 V < VSREG < 18V

RL = 60 Ω ±1%

VDIFF: 0.5 V(falling) - 0.9 V (rising)

L = 100 pF

CRXD = 15 pF

TXD rise and fall time = 10 ns (10% - 90%, 90% -

10%)

Test signal to be applied on the TXD input of the

implementation is a square wave signal with a

positive duty cycle of 1/6 and a period of six times

the nominal recessive bit width

Rectangular pulse signal TTXDC = 6000 ns, high

pulse 1000 ns, low pulse 5000 ns

935 1000 1030

E.056

TBit(BUS) ≤ 2

Mb/s

Conditions as TBit(BUS) ≤ 1 Mb/s

Rectangular pulse signal TTXDC = 3000 ns, high

pulse 500 ns, low pulse 2500 ns

435 500

530

E.057

TBit(BUS) ≤ 5

Mb/s

Conditions as TBit(BUS) ≤ 1 Mb/s

Rectangular pulse signal TTXDC = 1200 ns, high

pulse 200 ns, low pulse 1000 ns

155 200

210

E.058

∆tREC ≤ 2 Mb/s

Receiver timing

symmetry (TBit(RXD) -

TBit(BUS))

5.5 V < VSREG < 18 V

RL = 60 Ω ±1%

CL = 100 pF

CRXD = 15 pF

Rectangular pulse signal TTXDC = 3000 ns, high

pulse 500 ns, low pulse 2500 ns

-65

E.059

∆tREC ≤ 5 Mb/s

5.5 V < VSREG < 18 V

RL = 60 Ω ±1%

CL = 100 pF

-45

E.060

SPSB081

CAN FD transceiver

DS14048 - Rev 3

page 71/137

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