
9
Maxim Integrated
Quad Serial UART with 128-Word FIFOs
MAX14830
DC ELECTRICAL CHARACTERISTICS (continued)
(VA = +2.35V to +3.6V, VL = +1.71V to +3.6V, VEXT = +1.71V to +3.6V, TA = -40NC to +85NC, unless otherwise noted. Typical values
are at VA = +2.5V, VL = +1.8V, VEXT = +2.8V, TA = +25NC.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V18 Input Power-Supply Current
in Shutdown Mode
I18SHDN
Shutdown mode, VLDOEN = 0V, VRST = 0V,
all inputs and outputs are idle
200
F
A
V18 Input Power-Supply Current
I18
Baud rate = 1Mbps, 20MHz external clock,
PLL disabled, all UARTs in loopback mode,
VLDOEN = 0V (Note 4)
5
mA
SCLK/SCL, MISO/SDA
MISO/SDA Output Low Voltage
in I2C Mode
VOL,I2C
ILOAD = -3mA, VL > 2V
0.4
V
ILOAD = -3mA, VL < 2V
0.2 x VL
MISO/SDA Output Low Voltage
in SPI Mode
VOL,SPI
ILOAD = -2mA
0.4
V
MISO/SDA Output High Voltage
in SPI Mode
VOH,SPI
ILOAD = 2mA
VL -
0.4
V
Input Low Voltage
VIL
SPI and I2C mode
0.3 x VL
V
Input High Voltage
VIH
SPI and I2C mode
0.7 x VL
V
Input Hysteresis
VHYST
SPI and I2C mode
0.05 x VL
V
Input Leakage Current
IIL
VIN = 0 to VL, SPI and I2C mode
-1
+1
F
A
Input Capacitance
CIN
SPI and I2C mode
5
pF
SPI/I2C, CS/A0, MOSI/A1 INPUTS
Input Low Voltage
VIL
SPI and I2C mode
0.3 x VL
V
Input High Voltage
VIH
SPI and I2C mode
0.7 x VL
V
Input Hysteresis
VHYST
SPI and I2C mode
50
mV
Input Leakage Current
IIL
VIN = 0 to VL, SPI and I2C mode
-1
+1
F
A
Input Capacitance
CIN
SPI and I2C mode
5
pF
IRQ OUTPUT (OPEN DRAIN)
Output Low Voltage
VOL
ILOAD = -2mA
0.4
V
Output Leakage Current
ILK
VIRQ = 0 to VL, IRQ is not asserted
-1
+1
F
A
LDOEN AND RST INPUTS
Input Low Voltage
VIL
0.3 x VL
V
Input High Voltage
VIH
0.7 x VL
V
Input Hysteresis
VHYST
50
mV
Input Leakage Current
IIN
VIN = 0 to VL
-1
+1
F
A
UART INTERFACE
RTS0, RTS1, RTS2, RTS3, TX0, TX1, TX2, TX3 OUTPUTS
Output Low Voltage
VOL
ILOAD = -2mA
0.4
V
Output High Voltage
VOH
ILOAD = 2mA
VEXT - 0.4
V
Input Leakage Current
IIN
Output is three-stated, VRTS_ = 0 to VEXT
-1
+1
F
A
Input Capacitance
CIN
High-Z mode
5
pF