MAX3238E_15 datasheet(9/22 Pages) TI1

Part #	MAX3238E

Description	LINE DRIVER/RECEIVER WITH ESD (HBM) PROTECTION

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Manufacturer	TI1 [Texas Instruments]

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PARAMETER MEASUREMENT INFORMATION

50

Ω

TEST CIRCUIT

VOLTAGE WAVEFORMS

−3 V

3 V

0 V

3 V

Output

Input

VOL

VOH

tTLH

Generator

(see Note B)

RL

3 V

FORCEOFF

RS-232

Output

tTHL

CL

(see Note A)

SR(tr) +

6 V

t

THL or tTLH

50

Ω

TEST CIRCUIT

VOLTAGE WAVEFORMS

0 V

3 V

Output

Input

VOL

VOH

tPLH

Generator

(see Note B)

RL

3 V

FORCEOFF

RS-232

Output

tPHL

CL

(see Note A)

50%

1.5 V

TEST CIRCUIT

VOLTAGE WAVEFORMS

50

Ω

−3 V

3 V

Output

Input

VOL

VOH

tPHL

Generator

(see Note B)

tPLH

Output

CL

(see Note A)

3 V or 0 V

FORCEON

3 V

FORCEOFF

1.5 V

50%

MAX3238E

3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

WITH

±15-kV ESD (HBM) PROTECTION

SLLS710A – FEBRUARY 2006 – REVISED APRIL 2006

A.

CL includes probe and jig capacitance.

B.

The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns,

tf ≤ 10 ns.

Figure 1. Driver Slew Rate

A.

CL includes probe and jig capacitance.

B.

The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns,

tf ≤ 10 ns.

Figure 2. Driver Pulse Skew

A.

CL includes probe and jig capacitance.

B.

The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.

Figure 3. Receiver Propagation Delay Times

9

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