33389 datasheet(13/49 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33389

ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

Table 5. Dynamic Electrical Characteristics

Characteristics noted under conditions 7.0 V

≤ V

SUP ≤ 18 V, - 40°C ≤ T

A ≤ 125°C, GND = 0 V unless otherwise noted. Typical

values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

MICROCONTROLLER INTERFACE

AC CANL/CANH Slew Rates, Rising or Falling Edges, TX from Recessive to

Dominant State

CLOAD - 10 nF, 133 Ω Termination Resistors

tCANRD

3.5

5.0

V/µs

AC CANL/CANH Slew Rates, Rising or Falling Edges, TX from Dominant to

Recessive State

CLOAD - 10 nF, 133 Ω Termination Resistors

tCANDR

2.0

3.5

V/µs

AC Propagation Delay TX to RX Low

CLOAD - 10 nF, 133 Ω Termination Resistors

tDH

—

1.2

2.0

µs

AC Propagation Delay TX to RX High

CLOAD - 10 nF, 133 Ω Termination Resistors

tDL

—

2.0

3.0

µs

Wake-Up Filter Time

tWUFT

8.0

µs

RST Duration after V1 High

tRES

—

1.0

—

SCLK Clock Period

tPSCLK

500

—

SCLK Clock High Time

tWSCLKH

175

—

SCLK Clock Low Time

tWSCLKL

175

—

Falling Edge of CS to Rising Edge of SCLK

tLEAD

250

—

Falling Edge of SCLK to Rising Edge of CS

tLEAD

250

—

SI to Falling Edge of SCLK

tSISU

125

—

Falling Edge of SCLK to SI

tSI(HOLD)

125

—

SO Rise Time (CL = 200 pF)

tRSO

—

SO Fall Time (CL = 200 pF)

tFSO

—

SI, CS, SCLK Incoming Signal Rise Time

tRSI

—

200

SI, CS, SCLK Incoming Signal Fall Time

tFSI

—

200

—

Time from Falling Edge of CS to SO

Low Impedance

High Impedance

tSO(EN)

tSO(DIS)

—

200

Time from Rising Edge of SCLK to SO Data Valid

0.2 V1 or V2 < SO > 0.8 V1 or V2, CL = 200 pF

tVALID

—

125

—

Running Mode Oscillator Tolerance (Normal Request, Normal and Stand-by

Modes (9))

RMOT

-12

—

+12

Software Watchdog Timing 1 (9)

tSW1

4.4

5.0

5.6

Software Watchdog Timing 2 (9)

tSW2

8.8

11.2

Software Watchdog Timing 3 (9)

tSW3

17.6

22.4

Software Watchdog Timing 4 (9)

tSW4

Notes

Software watchdog timing accuracy is based on the running mode oscillator tolerance

33389 Datasheet(PDF) 13 Page - Freescale Semiconductor, Inc

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