COM20020I_0609 Datasheet, PDF (45/69 Pages) SMSC Corporation – 5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM

5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
Chapter 7 Operational Description
7.1 Maximum Guaranteed Ratings*
Operating Temperature Range ........................................................................................................................-40^oC to +85^oC
Storage Temperature Range .........................................................................................................................-55^oC to +150^oC
Lead Temperature (soldering, 10 seconds).................................................................................................................+325 ^oC
Positive Voltage on any pin except XTAL1 and XTAL2, with respect to ground ..........................................................+5.5V
Positive Voltage on XTAL1 and XTAL2 pin, with respect to ground ......................................................................V_DD+0.3V
Negative Voltage on any pin, with respect to ground ......................................................................................................-0.3V
Maximum V_DD ...................................................................................................................................................................+5V
*Stresses above those listed may cause permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other condition above those indicated in the operational sections of this
specification is not implied.
Note: When powering this device from laboratory or system power supplies, it is important that the Absolute Maximum
Ratings not be exceeded or device failure can result. Some power supplies exhibit voltage spikes or "glitches" on their
outputs when the AC power is switched on or off. In addition, voltage transients on the AC power line may appear on the
DC output. If this possibility exists it is suggested that a clamp circuit be used.
7.2 Dc Electrical Characteristics
V_DD=3.3V±5%
T_A=-40^oC to +85^oC
PARAMETER
SYMBOL
MIN TYP MAX UNIT
COMMENT
Low Input Voltage 1
V_IL1
-0.3
(All inputs except XTAL1)
0.8
V TTL Level
High Input Voltage 1
V_IH1
2.0
(All inputs except XTAL1)
Low Input Voltage 2
(XTAL1)
V_IL2
-0.3
5.5
0.2xV_DD
V
V External Clock Input
High Input Voltage 2
(XTAL1)
Low Output Voltage 1
(nTXEN)
V_IH2
V_OL1
0.8xV_DD
V_DD+0.3
0.4
V
V I_SINK=4mA
High Output Voltage 1
(nTXEN)
V_OH1
2.4
Low Output Voltage 2
V_OL2
(AD0-AD2, D3-D7, nINTR,
nPULSE1 in Push/Pull
Mode, nPULSE2)
V I_SOURCE=-2mA
0.4
V I_SINK=8mA
High Output Voltage 2
(AD0-AD2, D3-D7, nINTR,
nPULSE1 in Push/Pull
Mode, nPULSE2)
Low Output Voltage 3
(nPULSE1 in Open-Drain
Mode)
Dynamic V_DD Supply
Current
V_OH2
V_OL3
I_DD
2.4
V I_SOURCE=-4mA
0.4
V I_SINK=8mA
Open Drain Driver
40
mA 5 Mbps
All Outputs Open
SMSC COM20020I 3.3V Rev.E
Page 45
DATASHEET
Revision 09-11-06