L7912CV DataSheet
DATASHEET
L7912CV Description
• PNP Silicon Epitaxial Planar Transistors • Suited for low level, low noise, low frequency applications in hybrid cicuits. • Low Current, Low Voltage. • As complementary types, BCW60 Series NPN transistors are recommended.
L7912CV Features
The L7912CV is a flexible UTOPIA to LVDS Bridge device. The LVDS Bridge transparently transports the UTOPIA bus over a high speed LVDS serial link. The device includes many reliability features such as an optional 1:1 protection and built in bit error rate checking. The parallel interface is user programmable for maximum flexibility. The user can choose between UTOPIA Level Level 2 ATM layer (master) of PHY layer (slave). The UTOPIA- LVDS Bridge supports a special MPHY (multi-PHY layer) operation mode. The MPHY operation supports up to 248 standard UTOPIA Level 2 PHY ports without adding external circuitry. The serial interface uses LVDS Serializer and Deserializer technology. The 16:1 bit serialization allows conveying the full-duplex parallel bus over two differential transmission pairs. This enables low cost backplanes and cables. Cable transmission length can be as long 16 meters. The serial link carries Flow control information (back pres- sure) in both directions. The Bridge device applies back pressure on a per queue basis over the 31 internal FIFO queues. In addition, the serial link includes an OAM (Opera- tions and Maintenance) channel that does not detract from link performance. There are many applications where the UTOPIA-LVDS Bridge simplifies designs. Box-to-box connections can use DS29UT16 devices across cables. Access multiplexor appli- cations can use the devices across a PCB backplane for point-to-point and lightly loaded multidrop configurations.
L7912CV Applicatioins
Technical/Catalog InformationL7912CVVendorSTMicroelectronicsCategoryIntegrated Circuits (ICs) Regulator Type