CS8900A
Crystal LAN™ ISA Ethernet Controller
DC CHARACTERISTICS (Continued)
Parameter
Symbol
Min
Typ
Max
Unit
Digital Inputs and Outputs
(Note 2)
Output Low Voltage
IOL = 24 mA
OD24, B24, O24ts
OD10
VOL
-
-
-
-
-
-
0.4
0.4
0.4
V
V
V
IOL = 10 mA
OL = 4 mA
I
B4w, O4
Output Low Voltage (all outputs) VDD = 3.3V and TA = >70°C
VOL
VOH
0.425
V
Output High Voltage
IOH = -12 mA
OH = -2 mA
Output Leakage Current 0 ≤ VOUT ≤ VCC
B24
2.4
2.4
-
-
-
-
V
V
I
B4w, O24ts, O4
ILL
µA
OD24, OD10, B24, O24ts
B4w
-10
-20
-
-
10
10
Input Low Voltage
Input High Voltage
Input Leakage Current
I, Iw
I, Iw
VIL
VIH
IL
-
-
-
0.8
-
V
V
2.4
0 ≤ VIN ≤ VCC
µA
I
Iw
-10
-20
-
-
10
10
10BASE-T Interface
Transmitter Differential Output Voltage (Peak)
Receiver Normal Squelch Level (Peak)
Receiver Low Squelch Level (LoRxSquelch bit set)
AUI Interface
VOD
VISQ
VSQL
2.2
300
125
-
-
-
2.8
525
290
V
mV
mV
Transmitter Differential Output Voltage (DO+/DO- Peak)
Transmitter Undershoot Voltage
VAOD
VAODU
VIDLE
VAISQ
±0.45
-
-
-
-
±1.2
100
40
V
-
-
mV
mV
mV
Transmitter Differential Idle Voltage (DO+/DO- Peak)
Receiver Squelch Level (DI+/DI- Peak)
180
300
Notes: 2. OD24: Open Drain Output with 24 mA Drive
OD10: Open Drain Output with 10 mA Drive
B24: Bi-Directional with 3-State Output and 24 mA Drive
B4w: Bi-Directional with 3-State Output, Internal Weak Pullup, and 4 mA Drive
O24ts: 3-State Output with 24 mA Drive
O4: Output with 4 mA Drive
I: Input
Iw: Input with Internal Weak Pullup
CIRRUS LOGIC PRODUCT DATA SHEET
112
DS271PP3
CIRRUS [ CIRRUS LOGIC ]
