MAX3229EBV データシートの表示（PDF） - Maxim Integrated

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MAX3229EBV

+2.5V to +5.5V RS-232 Transceivers in UCSP

Maxim Integrated 

+2.5V to +5.5V RS-232 Transceivers

in UCSP

ELECTRICAL CHARACTERISTICS (continued)

(VCC = +2.5V to +5.5V, VL = +1.65V to +5.5V, C1–C4 = 0.1µF, tested at +3.3V ±10%, TA = TMIN to TMAX. Typical values are at TA =

+25°C, unless otherwise noted.) (Note 3)

PARAMETER

RECEIVER INPUTS

Input Voltage Range

Input Threshold Low

Input Threshold High

Input Hysteresis

Input Resistance

AUTOSHUTDOWN

Receiver Input Threshold to

INVALID Output High

Receiver Input Threshold to

INVALID Output Low

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

TA = +25°C

TA = +25°C

VCC = 3.3V

VCC = 5.0V

VCC = 3.3V

VCC = 5.0V

-25

+25

V

0.6

1.2

V

0.8

1.7

1.3

2.4

V

1.8

2.4

0.5

V

3

5

7

kΩ

Figure 3a

Positive threshold

Negative threshold -2.7

-0.3

2.7

V

0.3

V

Receiver Positive or Negative

Threshold to INVALID High

tINVH VCC = +5.0V, Figure 3b

1

µs

Receiver Positive or Negative

Threshold to INVALID Low

tINVL VCC = +5.0V, Figure 3b

30

µs

Receiver Edge to Transmitters

Enabled

tWU

VCC = +5.0V, Figure 3b

100

µs

TRANSMITTER OUTPUTS

VCC Mode Switch Point

(VCC Falling)

T_OUT = ±5.0V to ±3.7V

2.85

3.1

V

VCC Mode Switch Point

(VCC Rising)

VCC Mode Switch Point Hysteresis

T_OUT = ±3.7V to ±5.0V

3.3

3.7

V

400

mV

Output Voltage Swing

Output Resistance

Output Short-Circuit Current

Output Leakage Current

INVALID OUTPUT

Output Voltage Low

Output Voltage High

VCC = +3.1V to

All transmitter

+5.5V, VCC falling,

±5

±5.4

outputs loaded with TA = +25°C

V

3kΩ to ground.

VCC = +2.5V to

+3.1V, VCC rising

±3.7

VCC = V+ = V- = 0, T_OUT = ±2V

300 10M

Ω

±60

mA

T_OUT = ±12V, transmitters disabled

±25

µA

IOUT = 0.8mA

IOUT = -0.5mA

0.4

V

VCC - 0.4 VCC - 0.1

V

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