MAX14500 Datasheet, PDF (6/41 Pages) Maxim Integrated Products – Hi-Speed USB-to-SD Card Readers with Bypass

Hi-Speed USB-to-SD Card
Readers with Bypass
USB FULL-SPEED SOURCE ELECTRICAL CHARACTERISTICS
(V_CC = +2.4V to +3.6V, V_SD = +2.4V to +3.6V, V_IO = +1.5V to +3.6V, V_TM = +2.91V to +3.4V, T_A = -40°C to +85°C, unless otherwise
noted. Typical values are at V_CC = +3.3V, V_IO = +2.5V, V_SD = +2.5V, V_TM = +3.3V, T_A = +25°C.) (Note 2)
PARAMETER
DC CHARACTERISTICS
SE Receiver Input High
SE Receiver Input Low
Differential Common-Mode
Voltage
Receiver Differential Input
Sensitivity
Transmitter High
Transmitter Low
Transmitter Output Signal
Crossover Voltage
Bus Pullup Resistor on Upstream
Facing Port (Idle Bus)
Bus Pullup Resistor on Upstream
Facing Port (Upstream Port
Receiving)
Input Impedance
Termination Voltage for Upstream
Facing Port Pullup (R_PU)
AC CHARACTERISTICS
Rise Time
Fall Time
Differential Rise and Fall Time
Matching
Full-Speed Data Rate
SYMBOL
CONDITIONS
V_IH
V_IL
V_CM
V_DI
V_OH
V_OL
V_CRS
R_L = 15kΩ connected to GND
R_L = 1.5kΩ connected to 3.3V
(Note 6)
R_PUI
R_PUA
Z_INP
V_TERM
t_FR
t_FF
t_FRFM (Note 6)
t_FDRATHS
MIN TYP MAX UNITS
2.0
V
0.8
V
0.8
2.0
V
0.2
V
2.8
3.6
V
0
0.3
V
1.3
2.0
V
0.900 1.25 1.575
kΩ
1.425 2.5 3.090
kΩ
300
kΩ
V_TM
V
4
4
90
11.994
20
ns
20
ns
111.11 %
12.030 Mbps
Note 2: All parameters are tested at T_A = +25°C. Specifications over temperature are guaranteed by design.
Note 3: On-resistance is measured by applying voltage and current on the SD card interface (CCLK1, CCMD1, CDAT1_[3:0],
CCLK2, CCMD2, CDAT2_[3:0]).
Note 4: Off-capacitance measured with SD switch open (CCLK1, HCLK1, CCMD1, HCMD1, CDAT1_[3:0], HDAT1_[3:0], CCLK2,
HCLK2, CCMD2, HCMD2, CDAT2_[3:0], HDAT2_[3:0]).
Note 5: On-capacitance measured on SD card side (CCLK1, CCMD1, CDAT1_[3:0], CCLK2, CCMD2, CDAT2_[3:0]).
Note 6: Specifications guaranteed by design.
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