Dc characteristics, Cs8952 – Cirrus Logic CS8952 User Manual
Page 4
CS8952
CrystalLAN™ 100BASE-X and 10BASE-T Transceiver
4
DS206F1
DC CHARACTERISTICS
(Over recommended operating conditions)
Parameter
Symbol
Min
Typ
Max
Unit
External Oscillator
XTAL_I Input Low Voltage
V
IXH
-0.3
-
0.5
V
XTAL_I Input High Voltage
V
IXH
3.5
-
VDD+0.5
V
XTAL_I Input Low Current
I
IXL
-40
-
-
µA
XTAL_I Input High Current
I
IXH
-
-
40
µA
XTAL_I Input Capacitance
C
L
-
35
pF
XTAL_I Input Cycle Time
t
IXC
39.996
-
40.004
ns
XTAL_I Input Low Time
t
IXL
18
-
22
ns
XTAL_I Input High Time
t
XH
18
-
22
ns
Power Supply
Power Supply Current
100BASE-TX (Note 1)
100BASE-FX (Note 1)
I
DD
-
-
-
135
90
80
145
-
-
mA
Hardware Power-Down
(Note 1)
I
DDHPDN
-
900
-
µA
Software Power-Down
(Note 1)
I
DDSPDN
-
20
-
mA
Low Power Power-Up
(Note 1)
I
DDSLPUP
-
900
-
µA
Digital I/O
Output Low Voltage
CLK25, MII_IRQ, SPD10, SPD100
I
OL
= 4.0mA
LED[4:0]
I
OL
= 10.0mA
V
OL
-
-
-
-
0.4
0.4
V
Output Low Voltage (MII_DRV = 1)
COL, CRS, MDIO, RXD[3:0],
RX_CLK, RX_DV, RX_ER,
TX_CLK
I
OL
= 4.0mA
VDD_MII = 5V; I
OL
= 43.0mA
VDD_MII = 3.3V, I
OL
= 26.0mA
V
OL
-
-
-
-
-
-
0.4
3.05
2.1
V
Output Low Voltage (MII_DRV = 0)
COL, CRS, MDIO, RXD[3:0],
RX_CLK, RX_DV, RX_ER,
TX_CLK
I
OL
= 4.0mA
V
OL
-
-
0.4
V
Output High Voltage
CLK25, SPD10, SPD100
I
OH
= -4.0mA
V
OH
2.4
-
-
V
Output High Voltage (MII_DRV = 1)
COL, CRS, MDIO, RXD[3:0],
RX_CLK, RX_DV, RX_ER,
TX_CLK
I
OH
= -4.0mA
VDD_MII = 5V; I
OH
= -20.0mA
VDD_MII = 3.3V, I
OH
= -20.0mA
V
OH
2.4
1.1
1.1
-
-
-
-
-
-
V