The Intel IC device for implementing the transceiver (driver/receiver) block shown in Fig.8-4 is the 8286 transceiver device. The 8286 contains 16 tristate elements, eight receivers and eight drivers. Therefore, only one 8286 is needed to service all of the data lines for an 8088, but two are required in an 8086 system.

Sometimes a system bus is designed so that the address and/or data signals are inverted. Therefore, the 8282 and 8286 both have companion chips that are the same as the 8282 and 8286 except that they cause an inversion between their inputs and outputs. The companion for the 8282 is the 8283 and the companion for the 8286 is the 8287.