COM20020I3V-HT Standard Microsystems (SMSC), COM20020I3V-HT Datasheet - Page 59

• Manufacturer Part Number: COM20020I3V-HT
• Manufacturer: Standard Microsystems (SMSC)

Specifications of COM20020I3V-HT

• Number Of Transceivers: 1
• Operating Supply Voltage (typ): 3.3V
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Compliant

5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
SMSC COM20020I 3.3V
nRESET
Note*: T
Note**: T
Note***: When the power is turned on, t1 is measured from stable XTAL
nRESET
Note*: T
Note**: T
Note***: When the power is turned on, t1 is measured from stable XTAL
t1
t2
t1
t2
nINTR
nINTR
oscillation after V
oscillation after V
XTL
DR
XTL
DR
nRESET Pulse Width***
nINTR High to Next nINTR Low
nRESET Pulse Width***
nINTR High to Next nINTR Low
is period of Data Rate (i.e. at 2.5 Mbps, T
is period of external XTAL oscillation frequency.
is period of Data Rate (i.e. at 2.5 Mbps, T
is period of external XTAL oscillation frequency.
Parameter
Parameter
FIGURE 23 – TTL INPUT TIMING ON XTAL1 PIN
FIGURE 24 – RESET AND INTERRUPT TIMING
DD
DD
t1
t1
was over 4.5V.
was over 4.5V.
DATASHEET
EF = 0
EF = 1
EF = 0
EF = 1
Page 59
t2
t2
DR
DR
= 400 nS)
= 400 nS)
T
T
5T
5T
4T
DR
min
4T
DR
min
XTL
XTL
**/2
XTL
**/2
XTL
*
*
*
*
typ
typ
max
max
units
units
Revision 12-06-06