MAX3140CEI データシートの表示（PDF） - Maxim Integrated

部品番号

コンポーネント説明

メーカー

MAX3140CEI

SPI/MICROWIRE-Compatible UART with Integrated True Fail-Safe RS-485/RS-422 Transceivers

Maxim Integrated 

SPI/MICROWIRE-Compatible UART with Integrated

True Fail-Safe RS-485/RS-422 Transceivers

ELECTRICAL CHARACTERISTICS (continued)

(VCC = +5V ±5%, DE = VCC, RE = GND, SHDN = VCC, fXTL = 1.8432MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values

are measured with VCC = +5V, UART configured for 9600 baud, TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

UART IRQ OUTPUT (Open Drain)

Output Low Voltage

Output Leakage

Output Capacitance

RS-485 DRIVER

VOL2

ILKG3

COUT2

ISINK = 4mA

V IRQ = VCC

0.4

V

±1

µA

5

pF

Differential Output Voltage

VOD1

VOD2

No load, Figure 1

R = 50Ω (RS-422), Figure 1

R = 27Ω (RS-422), Figure 1

5

2.0

V

1.5

Change in Magnitude of

Differential Output Voltage

∆VOD R = 50Ω or R = 27Ω, Figure 1 (Note 2)

0.2

V

Common-Mode Output

Voltage

VOC R = 50Ω or R = 27Ω, Figure 1

3

V

Change In Magnitude of

Common-Mode Voltage

Input High Voltage

Input Low Voltage

DI Input Hysteresis

Input Current

SRL Input High Voltage

SRL Input Middle Voltage

SRL Input Low Voltage

SRL Input Current

Full-Duplex Input Current

(A and B)

Full-Duplex Output Leakage

(Y and Z)

Short-Circuit Output Current

RS-485 RECEIVER

Differential Threshold Voltage

Input Hysteresis

Output High Voltage

Output Low Voltage

Three-State Output Current

Input Resistance

Output Short-Circuit Current

∆VOC

VIH1

VIL1

VHYS

IIN1

IIN2

VIH2

VIM2

VIL2

IIN3

IIN4

IO

IOSD

R = 50Ω or R = 27Ω, Figure 1 (Note 2)

DE, Dl, RE

H/F, TXP, RXP

DE, Dl, RE, H/F, TXP, RXP

SRL = VCC or unconnected

DE, DI, RE

H/F, TXP, RXP, internal pull-down

(Note 3)

SRL = VCC

SRL = GND (Note 3)

DE = GND

VCC = GND or 5.25V

DE = GND

VCC = GND or 5.25V

(Note 4)

VIN = 12V

VIN = -7V

VIN = 12V

VIN = -7V

-7V ≤ VOUT ≤ VCC

0 ≤ VOUT ≤ 12V

0 ≤ VOUT ≤ VCC

VTH

∆VTH

VOH

VOL

IOZR

RIN

IOSR

-7V ≤ VCM ≤ +12V

ISOURCE = 4mA, VID = -50mV

ISINK = 4mA, VID = -200mV

0.4V ≤ VO ≤ 2.4V

-7V ≤ VCM ≤ 12V

0 ≤ VRO ≤ VCC

0.2

V

2.0

V

2.4

0.8

V

100

mV

±2

µA

10

40

VCC - 0.8

0.4 · VCC

V

0.6 · VCC V

0.8

V

75

µA

-75

125

µA

-75

-100

125

µA

-250

250

mA

±25

-200 -125

-50

mV

25

mV

VCC - 1.5

V

0.4

V

±1

µA

96

kΩ

±7

±95

mA

_______________________________________________________________________________________ 3

Share Link: