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Switching Characteristics

(1)

AUTO-POWERDOWN SECTION

Electrical Characteristics

Switching Characteristics

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

Electrical Characteristics (continued)

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

Ioff

Output leakage current (except ROUT2B)

FORCEOFF = 0 V

±0.05

±10

µA

rI

Input resistance

VI = ±3 V or ±25 V

3

5

8

k

Ω

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

PARAMETER

TEST CONDITIONS

TYP(2)

UNIT

tPLH

Propagation delay time, low- to high-level output

CL = 150 pF, See Figure 3

150

ns

tPHL

Propagation delay time, high- to low-level output

150

ns

ten

Output enable time

CL = 150 pF, RL = 3 kΩ, See Figure 4

200

ns

tdis

Output disable time

200

ns

tsk(p)

Pulse skew(3)

See Figure 3

50

ns

(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 5)

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

Receiver input threshold for INVALID

VIT+(valid)

FORCEON = GND, FORCEOFF = VCC

2.7

V

high-level output voltage

Receiver input threshold for INVALID

VIT–(valid)

FORCEON = GND, FORCEOFF = VCC

–2.7

V

high-level output voltage

Receiver input threshold for INVALID

VT(invalid)

FORCEON = GND, FORCEOFF = VCC

–0.3

0.3

V

low-level output voltage

IOH = -1 mA, FORCEON = GND, FORCEOFF =

VCC – 0.

VOH

INVALID high-level output voltage

V

VCC

6

IOL = 1.6 mA, FORCEON = GND, FORCEOFF =

VOL

INVALID low-level output voltage

0.4

V

VCC

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5)

PARAMETER

TEST CONDITIONS

TYP(1)

UNIT

tvalid

Propagation delay time, low- to high-level output

VCC = 5 V

1

µs

tinvalid

Propagation delay time, high- to low-level output

VCC = 5 V

30

µs

ten

Supply enable time

VCC = 5 V

100

µs

(1)

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

6

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