MAX3232MDBREP datasheet(5/14 Pages) TI1

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RECEIVER SECTION

ELECTRICAL CHARACTERISTICS

SWITCHING CHARACTERISTICS

PARMETER MEASUREMENT INFORMATION

Ω

TEST CIRCUIT

VOLTAGE WAVEFORMS

0 V

3 V

Output

Input

VOL

VOH

tTLH

Generator

(see Note B)

RS-232

Output

tTHL

(see Note A)

SR(tr) +

6 V

THL

or t

TLH

1.5 V

3 V

−3 V

3 V

−3 V

TEST CIRCUIT

VOLTAGE WAVEFORMS

0 V

3 V

Output

Input

VOL

VOH

tPLH

tPHL

50%

1.5 V

Ω

Generator

(see Note B)

RS-232

Output

(see Note A)

MAX3232-EP

www.ti.com......................................................................................................................................................... SGLS337A – APRIL 2006 – REVISED MARCH 2009

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted (see

(1)and Figure 4)

PARAMETER

TEST CONDITIONS

MIN

TYP(2)

MAX

UNIT

VOH

High-level output voltage

IOH = -1 mA

VCC–0.6

VCC–0.1

VOL

Low-level output voltage

IOL = 1.6 mA

0.4

VCC = 3.3 V

1.5

2.4

VIT+

Positive-going input threshold voltage

VCC = 5 V

1.8

2.4

VCC = 3.3 V

0.6

1.2

VIT–

Negative-going input threshold voltage

VCC = 5 V

0.8

1.5

Vhys

Input hysteresis (VIT+ – VIT–)

0.3

Input resistance

VI = ±3 V to ±25 V

Ω

(1)

Test conditions are C1–C4 = 0.1

µF at V

CC = 3.3 V ±0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF at VCC = 5 V ±0.5 V.

(2)

All typical values are at VCC = 3.3 V or VCC = 5 V and TA = 25°C.

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted (see

(1)and Figure 3)

PARAMETER

TEST CONDITIONS

MIN

TYP(2)

MAX

UNIT

tPLH

Propagation delay time, low- to high-level output

300

CL = 150 pF

tPHL

Propagation delay time, high- to low-level output

300

tsk(p)

Pulse skew(3)

300

(1)

Test conditions are C1–C4 = 0.1

µF at V

CC = 3.3 V ±0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF at VCC = 5 V ±0.5 V.

(2)

All typical values are at VCC = 3.3 V or VCC = 5 V and TA = 25°C.

(3)

Pulse skew is defined as |tPLH – tPHL| of each channel of the same device.

Figure 1. Driver Slew Rate

CL includes probe and jig capacitance.

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

Figure 2. Driver Pulse Skew

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