MAX14830 datasheet(10/68 Pages) MAXIM

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(VA = +2.35V to +3.6V, VL = +1.71V to +3.6V, VEXT = +1.71V to +3.6V, TA = -40°C to +85°C, unless otherwise noted. Typical values

are at VA = +2.5V, VL = +1.8V, VEXT = +2.8V, TA = +25°C.) (Notes 2, 3)

(VA = +2.35V to +3.6V, VL = +1.71V to +3.6V, VEXT = +1.71V to +3.6V, TA = -40°C to +85°C, unless otherwise noted. Typical values

are at VA = +2.8V, VL = +1.8V, VEXT = +2.5V, TA = +25°C.) (Notes 2, 3)

DC Electrical Characteristics (continued)

AC Electrical Characteristics

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RX0, RX1, RX2, RX3, CTS0, CTS1, CTS2, CTS3 INPUTS

Input Low Voltage

VIL

0.3 x VEXT

Input High Voltage

VIH

0.7 x VEXT

Input Hysteresis

VHYST

CTS0, CTS1, CTS2, CTS3 Input

Leakage Current

IIN_CTS

VCTS_ = 0 to VEXT

-1

µA

RX0, RX1, RX2, RX3 Pullup

Current

IIN_RX_

VRX_ = 0V, VEXT = 3.6V

-7.5

-5.5

-3.5

µA

Input Capacitance

CIN_UART

GPIO0–GPIO15 INPUTS/OUTPUTS

Output Low Voltage

VOL

ILOAD = -20mA, VEXT > 2.3V, push-pull

or open drain

0.45

ILOAD = -20mA, VEXT < 2.3V, push-pull

or open drain

0.55

Output High Voltage

VOH

ILOAD = 5mA, push-pull

VEXT - 0.4

Input Low Voltage

VIL

GPIO_ is configured as an input

0.4

Input High Voltage

VIH

GPIO_ is configured as an input

2/3 x VEXT

Pulldown Current

IPD

GPIO_ = VEXT = 3.6V

3.5

5.5

7.5

µA

XIN

Input Low Voltage

VIL

0.2

Input High Voltage

VIH

1.2

Input Capacitance

CXIN

XOUT

Input Capacitance

CXOUT

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

INTERNAL OSCILLATOR

External Crystal Frequency

fXOSC

MHz

External Clock Frequency

fCLK

0.5

MHz

External Clock Duty Cycle

(Note 5)

Baud-Rate Generator Clock Input

fREF

(Note 5)

MHz

MAX14830

Quad Serial UART with 128-Word FIFOs

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