BL1501

BL1501 BL1501 CMOS 4-CH. 3-STATE Differential Line Driver General Description The BL1501 is a 4-channel differential line driver designed for digital data transmission over balanced lines. It is designed to meet all the requirements of EIA standard RS-422 while retaining the low power characteristics of CMOS. This enables the construction of serial and terminal interfaces while maintaining minimal power consumption. The BL1501 accepts TTL or CMOS input levels and translates these to RS-422 output levels. This device uses special output circuitry that enables the drivers to power down without loading down the bus. This device has enable and disable circuitry common to all four drivers. The BL1501 is pin compatible to the DS26C31(NS) and the AM26C31(TI) . All inputs are protected against damage due to electrostatic discharge by diodes to VCC and ground. Function Block Features · TTL input compatible · Typical propagation delays: 6 ns · Typical output skew: 0.5 ns · Outputs will not load line when VCC = 0V · BL1501 meets the requirements of EIA standard RS-422 · Operation from single 5V supply · TRI-STATE outputs for connection to system buses · Low quiescent current · Available in surface mount Connection Diagrams http://www.belling.com.cn -1Total 6 Pages 8/28/2006 Wrote by 2006 Pin description BL1501 NO. 1，7，9，15 2，6，10，14 3，5，11，13 4 12 16 8 Name Ain，Bin，Cin，Din Aout+，Bout+，Cout+，Dout+ Aout-，Bout-，Cout-，DoutEn ～En Vcc GND Description Non-balance Input Balance Positive...