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33290

ISO K Line Serial Link Interface

Freescale Semiconductor 

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

Table 3. Static Electrical Characteristics (Continued)

Characteristics noted under conditions of 4.75 V ≤ VDD ≤ 5.25 V, 8.0 V ≤ VBB ≤ 18 V, -40°C ≤ TC ≤ 125°C, unless otherwise

noted.

Characteristic

Symbol

Min

Typ

Max

Unit

ISO I/O

Input Low Voltage Threshold

RISO = 0 Ω, TX = 0.8 VDD (15)

VIL(ISO)

–

–

Input High Voltage Threshold

RISO = 0 Ω, TX = 0.8 VDD (16)

VIH(ISO)

0.7 x VBB

–

Input Hysteresis (17)

VHys(ISO)

0.05 x VBB

–

Internal Pull-Up Current

RISO = ∞ Ω, TX = 0.8 VDD, VISO = 9.0 V, VBB = 18 V

IPU(ISO)

-5.0

–

Short Circuit Current Limit (18)

RISO = 0 Ω, TX = 0.4 VDD, VISO = VBB

ISC(ISO)

50

–

Output Low Voltage

RISO = 510 Ω, TX = 0.2 VDD

VOL(ISO)

–

–

Output High Voltage

RISO = ∞ Ω, TX = 0.8 VDD

VOH(ISO)

0.95 x VBB

–

Notes

15. ISO ramped from 0.8 VBB to 0.4 VBB, Monitor RX, Value of ISO voltage at which RX transitions to 0.3 VDD.

16. ISO ramped from 0.4 VBB to 0.8 VBB, Monitor RX, Value of ISO voltage at which RX transitions to 0.7 VDD.

17. Input Hysteresis, VHys(ISO) = VIH(ISO) - VIL(ISO).

18. ISO has internal current limiting.

V

0.4 x VBB

V

–

0.1 x VBB

V

µA

-140

mA

1000

V

0.1 x VBB

V

–

33290

6

Analog Integrated Circuit Device Data

Freescale Semiconductor

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