AMD Elan SC300 / SC310 embedded microprocessors
AMD Elan SC300 and Elan SC310 are low-power embedded microprocessors based on Am386SXLV CPU core. The Am386SXLV is 32-bit processor core, although it uses 16-bit data bus. The core supports all x86 instructions and operating modes, and, consequentially, it is compatible with wide range of 8086/80386 software and operating systems, such as DOS and Windows. In addition to fully static 32-bit core, the Elan processors integrate a variety of PC/AT peripheral components, commonly found in PC/AT systems, such as a memory controller, DMA controllers, interrupt controllers, real-time clock, serial and parallel ports, and PCMCIA slots. The SC300 parts also provide three optional interfaces - full-featured ISA bus interface, CGA-class LCD controller with maximum display resolution 640 x 200 or 480 x 320, and 80386 local bus interface. The last two interfaces include a subset of an ISA bus interface. Only one out of the three interfaces can be active. Elan SC310 devices support optional local bus and ISA interfaces, but lack LCD controller and PCMCIA slots. Both SC300 / SC310 microprocessors feature System Management mode, as well as several low power states. One of these states, Low-speed PLL, reduces power consumption by operating CPU core at approximately 4.6 MHz. Other low-power states, Doze, Sleep, Suspend and Off, stop the CPU clock and turn off power to some or all on-chip peripheral components. When the power is turned off for all internal components, power consumption of the Elan chip is just 0.12 mW.
Elan SC300 and SC310 microprocessors are manufactured in two versions of 208-pin QFP package. "KC" and "KI" devices are packaged in standard 3.4mm (0.14") height package, while "VC" chips are offered in low-profile 1.4mm (0.06") thin QFP package.
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