Micrel, Inc.
MIC2555
Symbol
R
A_BUS_IN
V
TH_VBUS
V
TH_SV
V
TH_SE
ID
V
THH_R_ID
V
THL_R_ID
R
ID_PU
I
ID_WPU
R
ID_SW_GND
Parameter
V
BUS
Input Resistance
‘V
BUS
Valid’ Comparator
Threshold Voltage
“Session Valid’ Comparator
Threshold Voltage
“Session End’ Comparator
Threshold Voltage
Upper Threshold for ID
Resistor Sensing
Lower Threshold for ID
Resistor Sensing
Pull-up Resistor switched to
ID for detecting non-USB
devices
Weak Pull-up current source
driving ID pin
Interrupt Pulse Switch
Condition
Seen from V
BUS
pin to GND
Min
40
4.4
0.8
0.2
Typ
63
4.5
1.4
0.4
Max
100
4.6
2.0
0.8
Units
kΩ
V
V
V
V
BAT
= 3.0V
V
BAT
= 3.0V
2.45
0.35
70
2.55
0.42
90
4
1.0
2.65
0.55
130
6
4.0
V
V
kΩ
µA
kΩ
V
ID
= 0V
V
ID
≤
200mV
2
Logic Levels
- SDA, SCL, ADR0, OE_INT/, SE0_VM_TX, DAT_VP_RX, RCV, INT/, RESET/ & GPIO
V
IL
V
IH
LOW-Level Input Voltage
HIGH-Level Input Voltage
Input Hysteresis
V
IL
V
IH
I
IN_LGC
V
OL
V
OH
V
OL_SDA
V
OH_SDA
V
OL_GPIO
V
OH_GPIO
I
OH_GPIO
LOW-Level Input Voltage
HIGH-Level Input Voltage
Input Leakage Current
LOW-Level Output Voltage
HIGH-Level Output Voltage
LOW-Level Output Voltage at
SDA pin
HIGH-Level Output Voltage at
SDA pin
LOW-Level Output Voltage at
GPIO pins
HIGH-Level Output Voltage at
GPIO pins
GPIO Output driver leakage
current
ADR0, OE_INT/, SE0_VM_TX,
DAT_VP_RX, RCV, INT/, RESET/ & GPIO
Applies to USB and UART modes.
1.6V
≤
V
DD_LGC
≤
4.5V
I
OL
= 100µA
I
OH
= 100µA
I
OL
= 5mA
R
SDA_PU
= 3.0K
I
OL
= 10mA
R
PU
= 3.0K
V
DD_PU
= V
OH_GPIO
= 5V
0.7x
V
DD_LGC
150
V
DD_PU
–
0.1V
1
250
V
DD_PU
30
0.9x
V
DD_LGC
0.3x
V
DD_LGC
SDA, SCL
0.7x
V
DD_LGC
100
0.15x
V
DD_LGC
0.85x
V
DD_LGC
-5
.02
+5
0.1
0.3x
V
DD_LGC
V
V
mV
V
V
µA
V
V
V
V
mV
V
µA
December 2006
6
M9999-121406
MICREL [ MICREL SEMICONDUCTOR ]
