P
R
E
L
I
M
I
N
A
R
Y
I
N
F
O
R
M
A
T
I
O
N
XpressFlow-2020 Series –
Ethernet Switch Chipset
SC220
XpressFlow Engine
3
DC SPECIFICATION
3.1 ABSOLUTE MAXIMUM RATINGS
Storage Temperature
Operating Temperature
-65 C to +150 C
0 C to +70 C
Supply Voltage VDD with Respect to VSS
Voltage on 5V Tolerant Input Pins
Voltage on Other Pins
+3.0 V to +3.6 V
-0.5 V to (VDD + 2.5 V)
-0.5 V to (VDD + 0.3 V)
Stresses above those listed may cause permanent device failure. Functionality at or above these
limits is not implied. Exposure to Absolute Maximum Ratings for extended periods may affect device
reliability.
3.2 DC CHARACTERISTICS
VDD = 3.0 V to 3.6 V;
TAMBIENT = 0 C to +70 C
Preliminary
Typ
Symbol
fosc
Parameter Description
Frequency of Operation ( -40)
Min
Max
Unit
20
20
20
40.0000
50.0000
66.6666
500
MHz
MHz
MHz
mA
Frequency of Operation ( -50)
Frequency of Operation (-66)
IDD
Supply Power – @ 33.3333 MHz (VDD =3.3
V)
300
Supply Power – @ 40 MHz (VDD =3.3 V)
Supply Power – @ 50 MHz (VDD =3.3 V)
300
300
500
500
mA
mA
V
VOH-CMOS Output High Voltage (CMOS) IOH = -1.0 mA
VOL-CMOS Output Low Voltage (CMOS) IOL = 1.0 mA
VDD - 0.5
2.4
0.45
V
VOH-TTL
VOL-TTL
Output High Voltage (TTL) IOH = -1.0 mA
Output Low Voltage (TTL) IOL = 1.0 mA
V
0.45
VDD + 0.3
VDD x 30%
VDD + 0.3
+0.8
V
VIH-CMOS Input High Voltage (CMOS)
VDD x 70%
-0.5
V
VIL-CMOS
VIH-TTL
VIL-TTL
VIH-5VT
VIL-5VT
ILI
Input Low Voltage (CMOS)
Input High Voltage (TTL)
V
2.0
V
Input Low Voltage (TTL)
-0.3
V
Input High Voltage (TTL 5V tolerant)
Input Low Voltage (TTL 5V tolerant)
2.0
VDD + 2.5
+0.8
V
-0.3
V
Input Leakage Current (0.1 V V
V
)
DD
10
A
IN
(all pins except those with internal pull-
up/pull-down resistors)
ILO
IIH
Output Leakage Current (0.1 V V
VDD)
15
60
A
A
OUT
Input Leakage Current VIH = VDD - 0.1 V
(pins with internal pull-down resistors)
Input Leakage Current VIL = 0.1 V
(pins with internal pull-up resistors)
Input Capacitance
IIL
-60
A
CIN
COUT
CI/O
8
8
pF
pF
pF
Output Capacitance
I/O Capacitance
10
© 1998 Vertex Networks, Inc.
23
Rev. 4.5 – February
1999
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
