COM20022I-HT Standard Microsystems (SMSC), COM20022I-HT Datasheet - Page 71

• Manufacturer Part Number: COM20022I-HT
• Manufacturer: Standard Microsystems (SMSC)

Specifications of COM20022I-HT

• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Compliant

10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Chip RAM
Datasheet
SMSC COM20022I
nTXEN
nPULSE2
nPULSE1
RXIN
Note: Use Only 2.5 Mbps
t1
t2
t3
t4
t5
t6
t7
t8
nPULSE1, nPULSE2 Pulse Width
nPULSE1, nPULSE2 Period
nPULSE1, nPULSE2 Overlap
Beginning of Last Bit Time to nTXEN High
RXIN Active Pulse Width
nTXEN Low to nPULSE1 Low
RXIN Period
RXIN Inactive Pulse Width
t4
Figure 8.13 - Normal Mode Transmit or Receive Timing
(These signals are to and from the hybrid)
Parameter
t6
t1
DATASHEET
t3
Page 71
t1
t7
t2
t8
t2
min
850
250
-10
10
20
100
400
400
100
typ
0
(400 nS BIT TIME)
LAST BIT
max
t5
+10
950
350
units
Revision 09-27-07
nS
nS
nS
nS
nS
nS
nS
nS