The P82B715TD,112 is a bipolar IC Intended for application in IC-bus and derivative bus systems. While retaining all the operating modes and features of the IC-bus it permits extension of the practical separation distance between components on the I2C-bus by buffering both the data (SDA) and the clock (SCL) lines. The IC-bus capacitance limit of 400pF restricts practical communication distances to a few meters. Using one P82B715 at each end of a long cable (connecting Lx/Ly to Lx/Ly) reduces that cables loading on the linked IC-buses by a factor of 10 and allows the total system capacitance load (all devices, cable, connectors and traces or wires connected to the IC-bus) to be around 3000pF while the loading on each IC-bus on the Sx/Sy sides remains below 400pF. Longer cables or general-purpose wiring may be used to link IC-bus based modules without degrading noise margins.
Dual, bidirectional and unity voltage gain buffer with no external directional control required
Logic signal levels may include (but not exceed) both supply and ground
Logic signal input voltage levels are output without change and are independent of Vcc
x10 Impedance transformation, but does not change logic voltage levels
Clock speeds to at least 100kHz and 400kHz when other system delays permit
Latch-up testing is done to JEDEC standard JESD78 that exceeds 100mA
(EN)
