com20020-5 Standard Microsystems Corp., com20020-5 Datasheet - Page 41

• Manufacturer Part Number: com20020-5
• Description: Com20020-5 Ulanc Universal Local Area Network Controller With 2k X 8 On-board Ram
• Manufacturer: Standard Microsystems Corp.

MAXIMUM GUARANTEED RATINGS *
Operating Temperature Range ........................................................................................ 0
Storage Temperature Range ...................................................................................... -55
Lead Temperature (soldering, 10 seconds) .............................................................................. +325
Positive Voltage on any pin, with respect to ground ............................................................... V
Negative Voltage on any pin, with respect to ground .................................................................... -0.3V
Maximum V
*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.
DC ELECTRICAL CHARACTERISTICS V
COM20020-5I: T
Low Input Voltage 1
High Input Voltage 1
Low Input Voltage 2
High Input Voltage 2
Low to High Threshold
RXIN)
High to Low Threshold
RXIN)
(All inputs except A2,
XTAL1, nRESET, nRD,
nWR, and RXIN)
(All inputs except A2,
XTAL1, nRESET, nRD,
nWR, and RXIN)
(XTAL1)
(XTAL1)
Input Voltage (A2,
nRESET, nRD, nWR,
Input Voltage (A2,
nRESET, nRD, nWR,
PARAMETER
DD
............................................................................................................................... +7V
A
=-40
o
C to +85
SYMBOL
V
V
V
V
o
V
V
C
OPERATIONAL DESCRIPTION
IH1
IH2
ILH
IHL
IL1
IL2
DD
MIN
2.0
4.0
=5.0V 10%
41
TYP
1.8
1.2
MAX
0.8
1.0
UNIT
V
V
V
V
V
V
TTL Levels
TTL Levels
TTL Clock Input
Schmitt Trigger,
All Values at V
5V
COMMENT
o
C to +150
o
C to +70
DD
+0.3V
DD
o
o
o
=
C
C
C