Description

DS*4C*7T CMOS Quad TRISTATE Differential Line Driver General Description The DS*4C*7T is a quad differential line driver designed for digital data transmission over balanced lines. The DS*4C*7T meets all the requirements of EIA standard RS***2 while retaining the low power characteristics of CMOS. This enables the construction of serial and terminal interfaces while maintaining minimal power consumption. The DS*4C*7T accepts TTL or CMOS input levels and translates these to RS***2 output levels. This part uses special output circuitry that enables the individual drivers to power down without loading down the bus. This device has separate enable circuitry for each pair of the four drivers. The DS*4C*7T is pin compatible to the DS***7T. All inputs are protected against damage due to electrostatic discharge by diodes to VCC and ground. Features n TTL input compatible n Typical propagation delays: 6 ns n Typical output skew: 0.5 ns n Outputs won�t load line when VCC = 0V n Meets the requirements of EIA standard RS***2 n Operation from single 5V supply n TRI-STATE outputs for connection to system buses n Low quiescent current n Available in surface mount