M1687 is ALi’s new generation North bridge that offers a high-performance and cost-effective solution for PC systems. It supports the AMD® K8 Processors.

With AGP 1x/2x/4x/8x support, M1687 provides system designers with enough headroom to interface with different graphics solutions to fulfill various market requirements. The M1687 introduces HyperTransport™ bus, a next generation link bus that can reach up to 6.4GB/sec to K8 CPU side and up to 1.6GB/sec to our south bridge side in bandwidth.

M1687 coupled with M1563, a highly integrated Southbridge device, brings a complete and cost-effective solution for PC system designers. The M1563 integrates AC-Link Host Controller, 2-channel dedicated Ultra-66/100/133 IDE Master controller, USB 2.0/1.1 Host controllers with 6 ports in total, IO APIC controller, 1/10/100 Mb/s Fast Ethernet and HomePNA 1.0/2.0 MAC layer, and HyperTransport™ Technology Link interface. Additional features include Host Signal Processing (HSP) software modem solution, ACPI support, green function, and Real Time Clock.

HyperTransport™ Processor Support

Supports K8 processors.

16 bit data bus in each direction.

Low signal swing: 1.2V ± 0.3V.

High frequency: 400/800/1200/1600 MHz data transfer rate.

Supports lightning bandwidth up to 6.4GB/s.

Accelerated Graphics Port (AGP) Interface

Supports AGP specification V2.0, V3.0.

Supports 533MHz 1.5V signaling.

Supports 1x/2x/4x/8x AGP data transfer.

Maximum bandwidth 2.133 GB/s

Supports 64-bit upstream and 32-bit downstream addressing

HyperTransport™ I/O Support

Low pin count: 8 bit data bus in each direction.

Low signal swing: 1.2V ± 0.3V.

High frequency: 400/600/800 MHz data transfer rate.

Supports lightning bandwidth up to 1.6GB/s.

High concurrency between requests and responds.

Supports connect/disconnect power down mode.

Supports tri-state power down mode.

PC 2001 Compliance

Packaging

564-ball 31mmx31mm BGA package