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DRIVER SECTION

Electrical Characteristics

(1)

Switching Characteristics

(1)

RECEIVER SECTION

Electrical Characteristics

(1)

MAX3243-EP

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

WITH

±15-kV ESD (HBM) PROTECTION

SGLS328A – MARCH 2006 – REVISED MAY 2006

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6)

PARAMETER

TEST CONDITIONS

MIN TYP(2)

MAX

UNIT

VOH

High-level output voltage

All DOUT at RL = 3 kΩ to GND

5

5.4

V

VOL

Low-level output voltage

All DOUT at RL = 3 kΩ to GND

–5

–5.4

V

Output voltage (mouse

DIN1 = DIN2 = GND, DIN3 = VCC, 3-kΩ to GND at DOUT3,

VO

±5

V

driveability)

DOUT1 = DOUT2 = 2.5 mA

IIH

High-level input current

VI = VCC

±0.01

±1

µA

IIL

Low-level input current

VI at GND

±0.01

±1

µA

Vhys

Input hysteresis

±1

V

VCC = 3.6 V,

VO = 0 V

IOS

Short-circuit output current(3)

±35

±60

mA

VCC = 5.5 V,

VO = 0 V

ro

Output resistance

VCC, V+, and V– = 0 V,

VO = ±2 V

300

10M

Ω

VO = ±12 V,

VCC = 3 to 3.6 V

±25

Ioff

Output leakage current

FORCEOFF = GND,

µA

VO = ±10 V,

VCC = 4.5 to 5.5 V

±25

(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)

Short-circuit durations should be controlled to prevent exceeding the device absolute power dissipation ratings, and not more than one

output should be shorted at a time.

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6)

PARAMETER

TEST CONDITIONS

MIN

TYP(2) MAX

UNIT

CL = 1000 pF,

Maximum data rate

RL = 3 kΩ, See Figure 1

150

250

kbit/s

One DOUT switching,

CL = 150 pF to 2500

tsk(p)

Pulse skew(3)

RL = 3 kΩ to 7 kΩ, See Figure 2

100

ns

pF,

CL = 150 pF to 1000 pF

6

30

Slew rate, transition region

VCC = 3.3 V,

SR(tr)

V/

µs

(see Figure 1)

RL = 3 kΩ to 7 kΩ

CL = 150 pF to 2500 pF

4

30

(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.

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6)

PARAMETER

TEST CONDITIONS

MIN

TYP(2)

MAX

UNIT

VOH

High-level output voltage

IOH = –1 mA

VCC – 0.6

VCC – 0.1

V

VOL

Low-level output voltage

IOH = 1.6 mA

0.4

V

VCC = 3.3 V

1.6

2.4

VIT+

Positive-going input threshold voltage

V

VCC = 5 V

1.9

2.4

VCC = 3.3 V

0.6

1.1

VIT–

Negative-going input threshold voltage

V

VCC = 5 V

0.8

1.4

Vhys

Input hysteresis (VIT+ – VIT–)

0.5

V

(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.

5

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