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You are in : Electronic Components > Integrated Circuits > Atmel Microcontrollers > AT89Sx 8-bit Microcontroller
AT89Sx 8-bit Microcontroller
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The Atmel AT89S range are low voltage, high performance CMOS 8-bit microcontrollers that feature In-System Programmable (ISP) Flash program memory. Manufactured using Atmels high-density nonvolatile memory technololgy these devices are compatible with the industry standard MCS-51 instruction set as well as being functionally compatible with the AT89C2051 microcontroller. By combining a versatile 8-bit CPU with flash memory on a monolithic chip a powerful microcontroller is produced which provides a highly flexible and cost effective solution for a wide range of embedded control applications. A further addition to an already comprehensive feature set is the support for two software-selectable power saving modes: idle mode which stops the CPU while still allowing the RAM, timers/counters, serial port and interrupt system to continue functioning, and power-down mode which saves the RAM contents but freezes the disabling of all other chip functions until the next external interrupt or hardware reset.

  • Two level program memory lock
  • Low power idle and power-down modes
  • Brownout reset
  • Internal power-on reset
  • Interrupt recovery from power-down mode
  • Power-off flag
  • Flexible programming
  • User seviceable signature page
  • Operating temperature range –40°C to +85°C
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Unit of Sale 
Description Order Code 1+10+ Qty
AT89S2051-24PU 8-BIT MCU FLASH RC
  73-4374  RoHS  
 1.200.95 Buy
AT89S4051-24PU 8-BIT MCU FLASH RC
  73-4376  RoHS  
 1.501.15 Alert
73-4376 will be available in less than 1 month
AT89S51-24PU 8-BIT MCU FLASH RC
  73-4378  RoHS  
 1.501.15 Buy
AT89S52-24PU 8-BIT MCU FLASH DIL-40 RC
  73-4380  RoHS  
 1.501.15 Buy
AT89S52-24JU 8-BIT MCU FLASH PLCC-40 RC
  73-4387  RoHS  
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AT89S8253-24PU 8-BIT MCU FLASH RC
  73-4382  RoHS  
 2.752.50 Buy
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