33290 datasheet(6/12 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33290

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)

–

0.4 x VBB

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

–

0.1 x VBB

Internal Pull-Up Current

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

IPU(ISO)

-5.0

–

-140

µA

Short Circuit Current Limit (18)

RISO = 0 Ω, TX = 0.4 VDD, VISO = VBB

ISC(ISO)

–

1000

Output Low Voltage

RISO = 510 Ω, TX = 0.2 VDD

VOL(ISO)

–

0.1 x VBB

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.

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