AM486DX
AM486DX is Microprocessor manufactured by AMD.
Features
3-V core with 5-V tolerant I/O Wide range of chipsets and support available through the AMD Fusion E86SM Program s 168-Pin PGA Package or 208-Pin SQFP Package s IEEE 1149.1 JTAG Boundary-Scan patibility
- GENERAL DESCRIPTION m o c . u 4 t e e h s a t a .d w w w
The Enhanced Am486DX microprocessor family enables write-back configuration through software and cacheable access control. On-chip cache lines are configurable as either write-through or write-back. The CPU clock control feature permits the CPU clock to be stopped under controlled conditions, allowing reduced power consumption during system inactivity. The SMM function is implemented with an industry standard two-pin interface. Since the Enhanced Am486DX microprocessor family is supported as an embedded product, customers can rely on continued cost reduction, a long-term supply, and extended temperature products. In addition, customers have access to a large selection of inexpensive development tools, pilers, and chipsets. A large number of PC operating systems and Real Time Operating Systems (RTOS) support the En-
Table 1 shows available processors in the Enhanced Am486DX microprocessor family. See page 54 for information on how these parts differ from other Am486 processors.
Table 1. Clocking Options
Operating Frequency Am486DX5-133 Am486DX5-133 Am486DX4-100 Am486DX4-100 Am486DX2-66 Am486DX2-66 Input Clock 33 MHz 33 MHz 33 MHz 33 MHz 33 MHz 33 MHz Available Package 168-pin PGA 208-pin SQFP 168-pin PGA 208-pin SQFP 168-pin PGA 208-pin SQFP
This document contains information on a product under development at Advanced Micro Devices. The information is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed product without notice.
Publication # 20736 Rev: B Amendment/0 Issue Date: March 1997
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The Enhanced Am486®DX Microprocessor Family is an addition to the AMD E86 family of embedded...
