Am386SXL

`Member of the E86<sup>TM</sup> CPU series
   16-bit data bus
   24-bit address bus
   16-Mbyte address range
   Long-term stable supply from AMD
`40-, 33- and 25-MHz operating speeds
`Ideal for embedded applications
   True Static design for low-power applications
   35 V operation (at 25 MHz)
   Ideal for cost-sensitive designs
   True DC (0 MHz) operation
`Industry Standard Architecture
   Supports world's largest software base for x86 architectures
  Wide range of chipsets and BIOS available
  Fully compatible with all 386SX systems and software
`System Management Mode (SMM) for system and power management (Am386SXLV only)
  System Management Interrupt (SMI) for power management independent of processor operating mode and operating system
  SMI coupled with I/O instruction break feature provides transparent power off and auto resume of peripherals which may not be "power aware"
  SMI is non-maskable and has higher priority than Non-Maskable Interrupt (NMI)
  Automatic save and restore of the microprocessor state
`100-lead Plastic Quad Flat Pack (PQFP) package
`Extended temperature version available

Storage Temperature...............................65 to +150
Ambient Temperature Under Bias.............65 to +125

Stresses above those listed may cause permanent damage to the device. Functionality at or above these limits is not implied. Exposure to ABSOLUTE MAXIMUM RATING conditions for extended periods may affect device reliability.

The Am386SXL/SXL/SXLV microprocessors are lowcost, high-performance CPUs for embedded applications. Embedded customers benefit from using the Am386 microprocessor in a number of ways.

The Am386SX/SXL/SXLV microprocessors provide embedded customers access to very inexpensive processors and the highest performance of any 386SX available anywhere. The 16-bit data path allows for inexpensive memory design. Full static operation, coupled with 3-V supplies, benefit customers who desire low-power designs. Standby Mode allows the Am386SXL/SXLV microprocessors to be clocked down to 0 MHz (DC) and retain full register contents. A float pin places all outputs in a three-state mode to facilitate board test and debug.

Additionally, the Am386SXLV microprocessor comes with System Management Mode (SMM) for system and power management. SMI (System Management Interrupt) is a non-maskable, higher priority interrupt than NMI and has its own code space (1 Mbyte in Real Mode and 16 Mbyte in Protected Mode). SMI can be coupled with the I/O instruction break feature to implement transparent power management of peripherals. SMM can be used by system designers to implement system and power management code independent of the operating system or the processor mode.

Since the Am386SX/SXL/SXLV microprocessors are supported as an embedded product in the E86 family, customers can rely on long-term supply of product, and extended temperature products.

In addition, customers have access to the largest selection of inexpensive development tools, compilers, and chipsets. A large number of PC operating systems and Real Time Operating Systems (RTOS) support the Am386SX/SXL/SXLV microprocessors. This means cheaper development costs, and improved time to market.

The Am386SX/SXL/SXLV microprocessor is available in a small footprint 100-pin Plastic Quad Flat Pack (PQFP) package.