MAX339 datasheet(3/11 Pages) MAXIM

3 / 11 page

2.5V, ±15kV ESD-Protected RS-232

Transceivers for PDAs and Cell Phones

_______________________________________________________________________________________

TIMING CHARACTERISTICS

(VCC = VL = +2.35V to +3.0V, C1–C4 = 0.1µF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = VL = +2.5V,

TA = +25°C.)

tPHL - tPLH

Note 2: Guaranteed by correlation.

Note 3: Transmitter skew is measured at the transmitter zero crosspoint.

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC = VL = +2.35V to +3.0V, C1–C4 = 0.1µF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = VL = +2.5V,

TA = +25°C.)

PARAMETER

Maximum Data Rate

Receiver Propagation Delay

Receiver Output Enable Time

Receiver Output Disable Time

Time to Exit Shutdown

Transmitter Skew

Receiver Skew

Transition-Region Slew

Rate

tPHL - tPLH

tPLH

tPHL

SYMBOL

CONDITIONS

RL = 3k

Ω, CL = 1000pF,

one transmitter switching

Receiver input to receiver output,

CL = 150pF

VT_OUT > 3.7V

RL = 3k

Ω, CL = 1000pF (Note 3)

VCC = +2.5V, TA = +25°C,

RL = 3k

Ω to 7kΩ,

measured from +3V

to -3V or -3V to +3V,

one transmitter switching

CL = 150pF to

1000pF

CL = 150pF to

2500pF

430

630

100

200

0.15

250

MIN

TYP

MAX

UNITS

kbps

µs

V/µs

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output Leakage Current

VT_OUT = ±12V, transmitters disabled,

VCC = 0 or +2.5V

±25

µA

HANDSHAKING I/O (LIN, LOUT)

Input Voltage Range

0VCC

Input Threshold Low

LIN, VL = +2.5V, TA = +25°C

0.6

1.1

Input Threshold High

LIN, VL = +2.5V, TA = +25°C

1.7

Input Hysteresis

0.6

Input Resistance

TA = +25

oC20

Ω

Output Voltage Low

LOUT, ISINK = 1.6mA

0.4

Output Leakage Current

LOUT = VL, LIN = low or float

±10

µA

SWITCH (SWIN, SWOUT)

Input Voltage Range

0VCC

On-Resistance

100

Ω

Off-Leakage Current

SHDN = 0

±1µA

Turn-On Time

0.18

µs

Turn-Off Time

0.7

µs

ESD PROTECTION

Human Body Model

±15

IEC 1000-4-2 Air-Gap Discharge method

±15

R_IN, T_OUT, LIN, SWIN

ESD Protection

IEC 1000-4-2 Contact Discharge method

±8

RL = 3k

Ω, CL = 150pF,

one transmitter switching (Note 2)

460

tPHL - tPLH

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