33911 datasheet(14/45 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33911

ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

L1 AND L2 INPUTS

Wake-Up Filter Time

tWUF

8.0

µs

STATE MACHINE TIMING

Delay Between CS LOW-to-HIGH Transition (at the End of a SPI Stop

Command) and Stop Mode Activation(44)

tSTOP

–

5.0

µs

Normal Request Mode Timeout (see Figure 12, page 19

)

tNRTOUT

110

150

205

Delay Between SPI Command and HS/LS Turn On(45)

9V < VSUP < 27V

tS-ON

–

µs

Delay Between SPI Command and HS/LS Turn Off(45)

9V < VSUP < 27V

tS-OFF

–

µs

Delay Between Normal Request and Normal Mode After a Watchdog Trigger

Command (Normal Request Mode)(44)

tSNR2N

–

µs

Delay Between CS Wake-Up (CS LOW to HIGH) in Stop Mode and:

Normal Request Mode, VDD ON and RST HIGH

First Accepted SPI Command

tWUCS

tWUSPI

9.0

—

N/A

µs

Minimum Time Between Rising and Falling Edge on the CS

t2CS

4.0

—

µs

LIN PHYSICAL LAYER: DRIVER CHARACTERISTICS FOR NORMAL SLEW RATE - 20.0KBIT/SEC(46), (47)

Duty Cycle 1: D1 = tBUS_REC(MIN)/(2 x tBIT), tBIT = 50µs

7.0V

≤ V

SUP ≤ 18V

0.396

—

Duty Cycle 2: D2 = tBUS_REC(MAX)/(2 x tBIT), tBIT = 50µs

7.6V

≤ V

SUP ≤ 18V

—

0.581

LIN PHYSICAL LAYER: DRIVER CHARACTERISTICS FOR SLOW SLEW RATE - 10.4KBIT/SEC(46), (48)

Duty Cycle 3: D3 = tBUS_REC(MIN)/(2 x tBIT), tBIT = 96µs

7.0V

≤ V

SUP ≤ 18V

0.417

—

µs

Duty Cycle 4: D4 = tBUS_REC(MAX)/(2 x tBIT), tBIT = 96µs

7.6V

≤ V

SUP ≤ 18V

—

0.590

µs

Notes

44.

This parameter is guaranteed by process monitoring but not production tested.

45.

Delay between turn on or off command (rising edge on CS) and HS or LS ON or OFF, excluding rise or fall time due to an external load.

46.

Bus load RBUS and CBUS 1.0nF / 1.0kΩ, 6.8nF / 660Ω, 10nF / 500Ω. Measurement thresholds: 50% of TXD signal to LIN signal threshold

defined at each parameter. See Figure 6, page 17.

47.

See Figure 7, page 17.

48.

See Figure 8, page 17.

Table 4. Dynamic Electrical Characteristics (continued)

Characteristics noted under conditions 5.5V

≤ V

SUP ≤ 18V, -40°C ≤ TA ≤ 125°C for the 33911 and -40°C ≤ TA ≤ 85°C for the

34911, otherwise noted. Typical values noted reflect the approximate parameter mean at TA = 25°C under nominal conditions,

unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

33911 Datasheet(PDF) 14 Page - Freescale Semiconductor, Inc

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