MFG:SMSC Package Cooled:QFP D/C:01+
MFG: SMSC
Package Cooled: QFP
D/C: 01+
Description: SMSC's COM20022I is a member of the family of Embedded ARCNET Controllers from Standard Microsystems C...
SMSC's COM20022I is a member of the family of Embedded ARCNET Controllers from Standard Microsystems Corporation. The device is a general purpose communications controller for networking microcontrollers and intelligent peripherals in industrial, automotive, and embedded control environments using an ARCNET protocol engine. The small 48 pin package, flexible microcontroller and media interfaces, eight- page message support, and extended temperature range of the COM20022I make it the only true network controller optimized for use in industrial, embedded, and automotive applications. Using an ARCNET protocol engine is the ideal solution for embedded control applications because it provides a deterministic token-passing protocol, a highly reliable and proven networking scheme, and a data rate of up to 10 Mbps when using the COM20022I. A token-passing protocol provides predictable response times because each network event occurs within a predetermined time interval, based upon the number of nodes on the network. The deterministic nature of ARCNET is essential in real time applications. The integration of the 2Kx8 RAM buffer on-chip, the Command Chaining feature, the 10 Mbps maximum data rate, and the internal diagnostics make the COM20022I the highest performance embedded communications device available. With only one COM20022I and one microcontroller, a complete communications node may be implemented.
Operating Temperature Range ...............................................................................................-40oC to +85oC
Storage Temperature Range ................................................................................................-55oC to +150oC
Lead Temperature (soldering, 10 seconds) ....................................................................................... +325 oC
Positive Voltage on any pin, with respect to ground ........................................................................VDD+0.3V
Negative Voltage on any pin, with respect to ground.............................................................................. -0.3V
Maximum VDD ........................................................................................................................................... +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.
COM20022I
PDF/DataSheet Download
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