Bus Switch Family Adds CMOS Members

Designed for hot-plugging applications, four 20-bit, two-port CMOS bus switches have been added to the company's existing family of TTL devices. They are pin-compatible with their family members and operate from supply voltages from 4V to 5.5V. The B5S16861 can be controlled as two 10-bit buses or one 20-bit bus. On resistance between the two ports is typically 5? and maximum delay time is 0.25 ns at 4.5V. Employing a 25? series resistor in each output, the B5S162861 exhibits a maximum delay of 1.25 ns at 4.5V and an on resistance between ports of 25?. With four enable lines, the B5S16862 can be configured as four 5-bit buses or one 20-bit bus. Maximum delay time is 0.25 ns at 4.5V and interport on resistance is typically 5?. Otherwise similar to the B5S16862, the B5S162862 integrates a 25? series resistor and specifies a maximum of delay of 1.25 ns at 4.5V and an on resistance of 25?. In TSSOP48 packages, price is $0.78 each/1,000. STMICROELECTRONICS, Lexington, MA. (781) 861-2650.