COM20020I_06 Datasheet, PDF (45/65 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
8.0 OPERATIONAL DESCRIPTION
8.1 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, with respect to ground ...............................................................................................V_DD+0.3V
Negative Voltage on any pin, with respect to ground......................................................................................................-0.3V
Maximum V_DD ....................................................................................................................................................................+7V
*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.
8.2 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
(All inputs except A2,
0.6
V
XTAL1, nRESET, nRD,
nWR, and RXIN)
High Input Voltage 1
V_IH1
2.0
V
(All inputs except A2,
XTAL1, nRESET, nRD,
nWR, and RXIN)
Low Input Voltage 2
V_IL2
(XTAL1)
1.0
V TTL Clock Input
High Input Voltage 2
V_IH2
2.4
V
(XTAL1)
Low to High Threshold
V_ILH
Input Voltage
(A2, nRESET, nRD, nWR,
and RXIN)
1.8
V Schmitt Trigger,
All Values at V_DD =
3.3V
High to Low Threshold
V_IHL
Input Voltage
1.2
V
(A2, nRESET, nRD, nWR,
and RXIN)
Low Output Voltage 1
V_OL1
(nPULSE1 in Push/Pull
0.4
V
I_SINK=2mA
Mode, nPULSE2,
NTXEN)
High Output Voltage 1
(nPULSE1 in Push/Pull
V_OH1
2.4
V
I_SOURCE=-1mA
Mode, nPULSE2,
nTXEN)
SMSC COM20020I 3.3V
Page 45
DATASHEET
Revision 12-06-06