ISO7641FC datasheet(13/31 Pages) TI

13 / 31 page

ISO7631FM, ISO7631FC

ISO7640FC, ISO7641FC

www.ti.com

SLLSEC3A – SEPTEMBER 2012 – REVISED SEPTEMBER 2012

ELECTRICAL CHARACTERISTICS

VCC1 and VCC2 at 2.7 V

(1) (over recommended operating conditions unless otherwise noted)

ISO7631F

M-Grade

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IOH = –4 mA; see Figure 1

VCC

(2) – 0.5

2.4

VOH

High-level output voltage

IOH = –20 μA; see Figure 1

VCC

(2) – 0.1

2.7

IOL = 4 mA; see Figure 1

0.2

0.4

VOL

Low-level output voltage

IOL = 20 μA; see Figure 1

0.1

VI(HYS)

Input threshold voltage hysteresis

350

IIH

High-level input current

VIH = VCC at INx or ENx

μA

IIL

Low-level input current

VIL = 0 V at INx or ENx

-10

CMTI

Common-mode transient immunity

VI = VCC or 0 V; see Figure 4

kV/

μs

(1)

Only M-Grade devices are recommended for operation down to 2.7 V supplies. For 2.7 V-operation, max data rate is 100 Mbps.

(2)

VCCx is the supply voltage, VCC1 or VCC2, for the output channel that is being measured.

SWITCHING CHARACTERISTICS

VCC1 and VCC2 at 2.7 V (over recommended operating conditions unless otherwise noted)

ISO7631F

M-Grade

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tPLH, tPHL

Propagation delay time

See Figure 1

PWD(1)

Pulse width distortion |tPHL – tPLH|

2.5

Same-direction Channels

tsk(o)

(2)

Channel-to-channel output skew time

Opposite-direction Channels

tsk(pp)

(3)

Part-to-part skew time

Output signal rise time

2.3

See Figure 1

Output signal fall time

1.8

Disable Propagation Delay, high-to-high

tPHZ

impedance output

Disable Propagation Delay, low-to-high

tPLZ

impedance output

See Figure 2

Enable Propagation Delay, high impedance-to-

tPZH

high output

Enable Propagation Delay, high impedance-to-

tPZL

low output

Fail-safe output delay time from input data or

tfs

See Figure 3

8.5

μs

power loss

(1)

Also known as Pulse Skew.

(2)

tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same

direction while driving identical loads.

(3)

tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same

direction while operating at identical supply voltages, temperature, input signals and loads.

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