DM8203
2-port switch with MII / RMII Interface
10.3 DC Electrical Characteristics
Symbol
Parameter
Min.
Typ. Max. Unit
Conditions
Inputs
VIL
Input Low Voltage
Input High Voltage
Input Low Leakage Current
Input High Leakage Current
-
2.0
-1
-
-
-
-
-
0.8
-
-
V
V
uA
uA
Vcond1
Vcond1
VIN = 0.0V, Vcond1
VIN = 3.3V, Vcond1
VIH
IIL
IIH
1
Outputs
VOL
VOH
Receiver
VICM
Output Low Voltage
Output High Voltage
-
-
-
0.4
-
V
V
IOL = 4mA
IOH = -4mA
2.4
RX+/RX- Common Mode Input
Voltage
-
1.8
-
V
100 Ω Termination
Across
Transmitter
VTD100 100TX+/- Differential Output Voltage
VTD10 10TX+/- Differential Output Voltage
ITD100 100TX+/- Differential Output Current │19│ │20│ │21│
ITD10 10TX+/- Differential Output Current │44│ │50│ │56│
1.9
4.4
2.0
5
2.1
5.6
V
V
mA
mA
Peak to Peak
Peak to Peak
Absolute Value
Absolute Value
Note: Vcond1 = VCC3 = 3.3V, VCCI = 1.8V, AVDD3 = 3.3V, AVDDI = 1.8V.
10.4 AC characteristics
10.4.1 Power On Reset Timing
T1
PWRST#
T4
Strap pins
T2
EECS
T3
Symbol
T1
Parameter
Min.
Typ.
Max.
Unit Conditions
PWRST# Low Period
1
40
-
-
-
-
-
ms
ns
-
-
T2
Strap pin hold time with PWRST#
PWRST# high to EECS high
PWRST# high to EECS burst end
T3
5
--
-
us
T4
-
4
ms
56
Preliminary datasheet
DM8203-15-DS-P05
October 23, 2008
DAVICOM [ DAVICOM SEMICONDUCTOR, INC. ]
