Electronic Components Datasheet Search |
|
COM20019I3VLJP Datasheet(PDF) 10 Page - SMSC Corporation |
|
COM20019I3VLJP Datasheet(HTML) 10 Page - SMSC Corporation |
10 / 70 page Cost Competitive ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM Rev. 10-31-06 Page 10 SMSC COM20019I 3.3V Rev.C DATASHEET PIN NO NAME SYMBOL I/O DESCRIPTION PLCC TQFP TRANSMISSION MEDIA INTERFACE 18 19 24 25 nPulse 1 nPulse 2 nPULSE1 nPULSE2 OUT I/O In Normal Mode, these active low signals carry the transmit data information, encoded in pulse format as DIPULSE waveform. In Backplane Mode, the nPULSE1 signal driver is programmable (push/pull or open-drain), while the nPULSE2 signal provides a clock with frequency of doubled data rate. nPULSE1 is connected to a weak internal pull-up resistor on the open/drain driver in backplane mode. 20 28 Receive In RXIN IN This signal carries the receive data information from the line transceiver. 21 29 nTransmit Enable nTXEN OUT Transmission Enable signal. Active polarity is programmable through the nPULSE2 pin. nPULSE2 floating before power-up; nTXEN active low nPULSE2 grounded before power-up; nTXEN active high (this option is only available in Back Plane mode) 16 17 21 22 Crystal Oscillator XTAL1 XTAL2 IN OUT An external crystal should be connected to these pins. Oscillation frequency range is from 10 MHz to 20 MHz. If an external TTL clock is used instead, it must be connected to XTAL1 with a 390ohm pull-up resistor, and XTAL2 should be left floating. 15, 28 8, 20, 32, 43 Power Supply VDD PWR +3.3 Volt power supply pins. 7, 14, 22 6, 11, 18, 23, 30, 41 Ground VSS PWR Ground pins. 13 3, 5, 14-17, 19, 27, 33, 35, 38, 40, 42, 47, 48 N/C N/C Non-connection |
Similar Part No. - COM20019I3VLJP |
|
Similar Description - COM20019I3VLJP |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |