908E626(2005) 데이터 시트보기 (PDF) - Freescale Semiconductor

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908E626
(Rev.:2005)

Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication

Freescale Semiconductor 

DYNAMIC ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

All characteristics are for the analog chip only. Please refer to the 68HC908EY16 datasheet for characteristics of the

microcontroller chip. Characteristics noted under conditions 9.0 V ≤ VSUP ≤ 16 V, -40°C ≤ TJ ≤ 135°C unless 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

LIN PHYSICAL LAYER

Propagation Delay (11), (12)

TXD LOW to LIN LOW

TXD HIGH to LIN HIGH

LIN LOW to RXD LOW

LIN HIGH to RXD HIGH

TXD Symmetry

RXD Symmetry

t TXD-LIN-LOW

–

–

t TXD-LIN-HIGH

–

–

t LIN-RXD-LOW

–

4.0

t LIN-RXD-HIGH

–

4.0

t TXD-SYM

- 2.0

–

t RXD-SYM

- 2.0

–

µs

6.0

6.0

8.0

8.0

2.0

2.0

Output Falling Edge Slew Rate (11), (13)

80% to 20%

SRF

V/µs

-1.0

- 2.0

- 3.0

Output Rising Edge Slew Rate (11), (13)

20% to 80%, RBUS > 1.0 kΩ, CBUS < 10 nF

SRR

V/µs

1.0

2.0

3.0

LIN Rise / Fall Slew Rate Symmetry (11), (13)

SRS

- 2.0

–

2.0

µs

AUTONOMOUS WATCHDOG (AWD)

AWD Oscillator Period

AWD Period Low = 512 t OSC

t OSC

–

40

–

µs

t AWDPH

16

22

28

ms

AWD Period High = 256 t OSC

t AWDPL

8.0

11

14

ms

Notes

11. All LIN characteristics are for initial LIN slew rate selection (20 kbaud) (SRS0:SRS1= 00).

12. See Figure 4, page 12.

13. See Figure 5, page 12.

908E626

10

Analog Integrated Circuit Device Data

Freescale Semiconductor

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