
MAX3421E
USB Peripheral/Host Controller
with SPI Interface
12
Maxim Integrated
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +3V to +3.6V, VL = +1.4V to +3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +3.3V, VL =
+2.5V, TA = +25掳C.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Differential-Receiver Common-
Mode Voltage
0.8
2.5
V
Single-Ended Receiver Input Low
Voltage
VIL
0.8
V
Single-Ended Receiver Input
High Voltage
VIH
2.0
V
Single-Ended Receiver
Hysteresis Voltage
0.2
V
D+, D- Output Low Voltage
VOL
RL = 1.5k惟 from D+ to 3.6V
0.3
V
D+, D- Output High Voltage
VOH
RL = 15k惟 from D+ and D- to GND
2.8
3.6
V
Driver Output Impedance
Excluding External Resistor
(Note 4)
2
7
11
惟
D+ Pullup Resistor
REXT = 33惟
1.425
1.5
1.575
k
惟
D+, D- Pulldown Resistor
REXT = 33惟
14.25
15
15.75
k
惟
D+, D- Input Impedance
300
k
惟
ESD PROTECTION (D+, D-, VBCOMP)
Human Body Model
1F ceramic capacitors from VBCOMP and
VCC to GND
卤15
kV
IEC 61000-4-2 Air-Gap Discharge
1F ceramic capacitors from VBCOMP and
VCC to GND
卤12
kV
IEC 61000-4-2 Contact Discharge
1F ceramic capacitors from VBCOMP and
VCC to GND
卤8
kV
THERMAL SHUTDOWN
Thermal-Shutdown Low-to-High
+160
掳C
Thermal-Shutdown High-to-Low
+140
掳C
CRYSTAL OSCILLATOR SPECIFICATIONS (XI, XO)
XI Input High Voltage
2/3 x VCC
VCC
V
XI Input Low Voltage
0.4
V
XI Input Current
10
A
XI, XO Input Capacitance
3pF
VBCOMP COMPARATOR SPECIFICATIONS
VBCOMP Comparator Threshold
VTH
1.0
2.0
3.0
V
VBCOMP Comparator Hysteresis
VHYS
375
mV
VBCOMP Comparator Input
Impedance
RIN
100
k
惟