MCP2557FD datasheet(14/36 Pages) MICROCHIP

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MCP2557FD/8FD

DS20005533A-page 14

 2016 Microchip Technology Inc.

FIGURE 2-2:

PHYSICAL BIT REPRESENTATION AND SIMPLIFIED BIAS IMPLEMENTATION

TABLE 2-2:

AC CHARACTERISTICS

AC Characteristics

Electrical Characteristics: Unless otherwise indicated, TAMB = -40°C to

+150°C; VDD = 4.5V to 5.5V, VIO = 1.7V to 5.5V (Note 2), RL = 60

CL = 100 pF.

Maximum VDIFF(D)(I)= 3V.

Param.

No.

Parameter

Sym.

Min.

Typ.

Max.

Units

Conditions

1Bit Time

tBIT

0.125

—

69.44

µs

Nominal Bit Rate

NBR

14.4

—

8000

kbps

Delay TXD Low to Bus

Dominant

tTXD-BUSON

—50

Note 1

Delay TXD High to Bus

Recessive

tTXD-BUSOFF

—40

Note 1

Delay Bus Dominant to

RXD

tBUSON-RXD

—70

Note 1

Delay Bus Recessive to

RXD

tBUSOFF-RXD

—

110

145

Note 1

Note 1: Characterized, not 100% tested.

2: Not in ISO/DIS-11898-2:2015, but needs to be characterized.

Time

CANH

CANL

Normal Mode

Silent Mode

Recessive

Dominant

CANL

CANH

RxD

VDD

Normal and Silent

Unpowered

Recessive

VDD/2

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