w89c940 Winbond Electronics Corp America, w89c940 Datasheet - Page 59

• Manufacturer Part Number: w89c940
• Description: Elanc-pci Twisted-pair Ether-lan Controller With Pci Interface
• Manufacturer: Winbond Electronics Corp America

Note 1: These parameters are specified by design and are not tested.
The above specifications are valid only if the mandatory isolations are correctly employed and all differential
signals are taken to the AUI of the pulse transformer.
Note 1: Load capacitance employed depends on output type.
Note 2: Specifications which measure delays from an active state to a High-Z state are not guaranteed by production test, but are characterized
using 240 pF and are correlated to determine true driver turn-off time by eliminating inherent R-C delay
Note 3: SW1=Open for push pull outputs during timing test.
For 3SL, MOS, TPI, AUI: CL=50 pF.
For 3SH, OCH: CL=240 pF.
SW1=VCC for VOL test.
SW1=GND for VOH test.
SW1=VCC for High-Z to active low and active low to High-Z measurements.
SW1=GND for High-Z to active high and active high to High-Z measurements.
Supply voltage (V
Temperature
Input Test Pattern Levels (TTL/CMOS)
Input Rise and Fall Times (TTL/CMOS)
Input and Output Pattern Reference Level
(TTL/CMOS)
Input Waveform Level (Diff)
Input and Output Waveform
Reference Levels
Tristate Reference Levels
Input
0.1uF
DD
/V
SS
)
Vcc
DEVICE
UNDER
TEST
59
SW1 (Note 3)
50% Point of the Differential
-350 to -1315 mV
Float (V) + 0.5V
GND to 4.0V
RL = 2.2K
CL (Note 1,2)
25°C/70°C
5V±5%
1.5V
Output
5nS
times in measurements.
W89C940