PI7C8154B数据手册集成电路（IC）的专用规格书PDF

特性 Features

64-bit Primary and Secondary Ports run up to 66MHz
Compliant with the PCI Local Bus Specification, Revision 2.2
Compliant with PCI-to-PCI Bridge Architecture Specification, Revision 1.1
All I/O and memory commands
Type 1 to Type 0 configuration conversion
Type 1 to Type 1 configuration forwarding
Type 1 configuration write to special cycle conversion
Compliant with the PCI Power Management Specification, Revision 1.1
Synchronous and Asynchronous operation support
Supported modes of asynchronous operation
Primary (MHz)Secondary (MHz)25MHz to 66MHz
25MHz to 66MHz**up to 80MHz on the PI7C8154B-80 only

Provides internal arbitration for four secondary bus masters 
Programmable 2-level priority arbiter 
Supports serial EEPROM interface for register auto-load and VPD access
Dynamic Prefetching Control
Supports posted write buffers in all directions
512 byte upstream posted memory write
512 byte downstream posted memory write
1024 byte upstream read data buffer
1024 byte downstream read data buffer
Enhanced address decoding
32-bit I/O address range
32-bit memory-mapped I/O address range
64-bit prefetchable address range
IEEE 1149.1 JTAG interface support
Extended commercial and Industrial temperature range
Extended commercial: 0°C to 85°C
Industrial: -40°C to 85°C
3.3V and 5V signaling
304-pin PBGA package 
Pb-free & Green available