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Dallas Semiconductor High Speed Micros (HSMs) are 8051-compatible cores which execute instructions in fewer oscillator periods. This results in a 3-4X speed improvement over the 8051 using the same crystal. Plus HSMs can use a 33 or 40 MHz crystal. This gives you a 7-10X execution increase. Or you can use the same or slower crystal and greatly reduce power consumption. Systronix High Speed Micro development boards are the quickest way to prototype an HSM system. |
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| Photo: an assortment of HSMs in various packages | ||
 Click here for High Speed Micro
Development Board Info |
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Datasheets & App Notes (use Acrobat reader 4.X for best results) |
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 High
Speed Micro User Guide (600 KB) |
Details applicable to the whole HSM family (SFRs, power saving, etc) which are not in the individual HSM device data sheets. |
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DS80C320 Data Sheet (500 KB) |
Original HSM with dual UARTS, watchdog |
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DS87C520 Data Sheet (500 KB) |
Similar to 80C320 with added 16 KB EPROM and 1 KB SRAM. |
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DS87C530
Data Sheet (500 KB) |
Similar to 87C520 but with clock and calendar. |
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DS87C550
Data Sheet (400 KB) |
HSM with ADC, PWM and timers/counters |
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C320/520 App Notes |
On line at Systronix |
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C550 FAQ and App Notes |
On line at Systronix |
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Other Dallas
data sheets & App Notes |
Dallas Semiconductor web site doc area |
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