SPSB081 datasheet(66/135 Pages) STMICROELECTRONICS

66 / 135 page

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Item

RTXDCPU

TXDC pull up resistor

Active mode

110

kΩ

E.011

td,TXDC(dom-rec)

TXDC - CANH,L

delay time dominant -

recessive

RL = 50 Ω.. 65 Ω; 70 %

VTXD – 30% VDIFF;

5.5V ≤ VSREG ≤ 18 V;

TXDC rise time = 10 ns

(10% - 90%)

120

E.012

td,TXDC(rec-diff)

TXDC - CANH,L

delay time recessive -

dominant

RL = 50 Ω.. 65 Ω; 30 %

VTXD – 70% VDIFF;

5.5V ≤ VSREG ≤ 18 V;

TXDC fall time = 10 ns

(90% - 10%)

120

E.013

tdom(TXDC)

TXDC dominant time-

out

Tested by scan

0.8

E.014

Table 42. CAN receive data output: Pin RxDC

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Item

VRXDCLOW

Output voltage

dominant level

Active mode, IRXDC

= 2 mA

0.2

0.5

E.015

VRXDCHIGH

Output voltage

recessive level

Active mode, IRXDC

= -2 mA

V1-0.5

V1-0.2

E.016

tr,RXDC

RxDC rise time

CL = 15 pF;

30% - 70% VRXDC

E.017

tf,RXDC

RxDC fall time

CL = 15 pF;

70% - 30% VRXDC(1)

E.018

td, RXDC(dom-rec)

CANH,L – RxDC

delay time dominant -

recessive

CL = 15 pF;

30% VDIFF – 70%

VRXDC(1)

120

E.019

td, RXDC(rec - dom)

CANH,L – RxDC

delay time recessive

- dominant

CL = 15 pF;

70% VDIFF – 30%

VRXDC(1)

120

E.020

1. Guaranteed by design.

Table 43. CAN transmitter dominant output characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Item

VCANHdom

Single ended CANH

voltage level in dominant

state

VTXDC =

VTXDCLOW;

RL = 50 Ω..65 Ω

2.75

3.5

4.5

E.021

VCANLdom

Single ended CANL

voltage level in dominant

state

VTXDC =

VTXDCLOW;

RL = 50 Ω..65 Ω

0.5

1.5

2.25

E.022

VDIFF,dom

Differential output voltage

in dominant state:

VCANHdom-

VCANLdom

VTXDC =

VTXDCLOW;

RL = 50 Ω..65 Ω

1.5

2.0

E.023

SPSB081

CAN FD transceiver

DS14048 - Rev 1

page 66/135

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