COM20019I_0610 Datasheet, PDF (47/70 Pages) SMSC Corporation – Cost Competitive ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM

Cost Competitive ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
Chapter 7 Operational Description
7.1 MAXIMUM GUARANTEED RATINGS*
Operating Temperature Range .................................................................................................. 0^oC to +70^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
Low Input Voltage 1
V_IL1
-0.3
0.8
(All inputs except XTAL1)
UNIT
COMMENT
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
V I_SOURCE=-2mA
SMSC COM20019I 3.3V
Page 47
DATASHEET
Rev. 10-31-06