CMCPCI102B

www.DataSheet4U.com CMCPCI102B CompactPCI® Backplane Interface Features CompactPCI® standards compliant Allows CompactPCI System Cards to be used in any Slot Provides termination for up to ten channels Provides a series switch in each channel Supports hot-swap capability Very low capacitance load on each line Industrial temperature range 28-pin TSSOP package Lead-free version available Product Description The CMCPCI102BT/BR is a 10-channel backplane interface/termination IC specifically designed for CompactPCI redundant system-slot cards. The CMCPCI102BT/BR allows CompactPCI boards to interface to the backplane and provides the versatility to use system cards in any slot (system or peripheral). Per the CompactPCI specification, the CMCPCI102BT/ BR provides a 10Ω termination resistor for each channel to terminate the transmission line stub on the board. An integral series switch and associated control signal (SW_EN) permits connection/disconnection of the channel, so that the device side of the circuit may be isolated from the backplane side. The CompactPCI standard requires system boards to be hot-swappable. To accommodate this requirement, the CMCPCI102BT/BR features a switched 10kΩ resistor connected to the 1V Precharge Supply Voltage. If the precharge enable pin (P_EN) is asserted, then the 10kΩ pull-up resistors are connected to precharge the circuits. DataSheet4U.com In addition, a system board requirement mandates either a 1.0kΩ pull-up resistor or a...