5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
Datasheet
CAPACITANCE (TA = 25°C; fC = 1MHz; VDD = 0V)
Output and I/O pins capacitive load specified as follows:
PARAMETER
Input Capacitance
SYMBOL
CIN
MIN
TYP
MAX
5.0
UNIT
pF
COMMENT
Output Capacitance 1
COUT1
45
pF
Maximum Capacitive
Load which can be
supported by each
output.
(All outputs except XTAL2,
nPULSE1 in Push/Pull
Mode)
Output Capacitance 2
(nPULSE1, in BackPlane
Mode Only - Open
Drain)
COUT2
400
pF
AC Measurements are taken at the following points:
Inputs:
Outputs:
t
t
2.0V
0.8V
2.0V
0.8V
2.4V
1.4V
0.4V
50%
t
2.4V
1.4V
0.4V
50%
t
Inputs are driven at 2.4V for logic "1" and 0.4 V for logic "0" except XTAL1 pin.
Outputs are measured at 2.0V min. for logic "1" and 0.8V max. for logic "0".
Revision 12-05-06
Page 52
SMSC COM20020I Rev D
DATASHEET
SMSC [ SMSC CORPORATION ]
