Micrel, Inc.
MIC2555
Symbol
Parameter
Transceiver DC Characteristics -
D+, D-
V
DI
V
CM
V
TH_SE
V
HYS
V
OL
V
OH
R
DRV
R
PU_D
R
PD_D
C
IN_D
V
THL_INT_HI
V
THL_INT_LO
Differential Input Sensitivity
Differential Common-Mode
Range
Single-Ended Receiver
Threshold
Receiver Hysteresis
LOW-Level Output Voltage
HIGH-Level Output Voltage
Transceiver Output
Resistance
Internal Pull-Up Resistor on
D+ and D-
Internal Pull-Down Resistor or
D+ and D-
Transceiver Input
Capacitance
Interrupt Detector Threshold
HIGH
Interrupt Detector Threshold
LOW
Condition
|(D+) – (D-)|, V
IN
= 0.8V – 2.5V
Includes V
DI
Range
Min
0.2
0.8
0.8
Typ
Max
Units
V
2.5
1.5
200
0.1
0.3
3.6
24
3.09
1.575
24.8
20
2.0
V
V
mV
V
V
Ω
kΩ
kΩ
kΩ
pF
V
V
D+, D-
OE_INT/ = 0, R
L
= 1.5kΩ to 3.6V
OE_INT/ = 0, I
SOURCE
= 1mA
D+, D-
V
TRM
to D+ or D-
D+ to GND, D- to GND
D+, D- pins to GND
See Note 4
2.5
0.3
Active
Idle
2.8
5
1.425
0.900
14.3
3.3
12
2.25
1.24
19.5
3.0
0.5
3.3
0.7
Transceiver AC Characteristics -
D+, D-
V
C2C
Channel-to-Channel Isolation
between D+, D- and ID pins
(in audio mode)
DC bias (pin to GND) = 0.4V
AC signal = 600mVp-p
Freq. = 2kHz
See Note 4
0V < V
D
< 3.6V, f = 2kHz OE_INT/ = 1
Measured at D+, D- pins, with respect to
GND
See Note 4
V
BAT
= 3.6V
V
BAT
= 3.0V
Driver Characteristics - Full Speed
t
R_FS
t
F_FS
t
R
/ t
F
V
CRS
t
PLH
t
PHL
Transition Time:
Rise Time
Fall Time
Rise/Fall Time Matching
Output Signal Crossover
Voltage
Propagation delay
LOW to HIGH
HIGH to LOW
See Note 4
T
AMB
= 25°C
C
L
= 50pF to 125pF
See Note 4
(T
R
/ T
F
)
4
4
90
1.3
12.5
12.5
20
20
111.11
2.0
18
18
ns
ns
%
V
ns
ns
-60
dB
Z
OUT_3S_D
High-Z State Output
Impedance
300
kΩ
Data Rate
F
I2C
I
2
C signaling rate
100
100
400
200
kbps
kbps
June 2005
7
M9999-060805
(408) 955-1690
MICREL [ MICREL SEMICONDUCTOR ]
