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89C5122 - AT89C5122

General Description

AT8xC5122 is a high-performance CMOS derivative of the 80C51 8-bit microcontrollers optimized for USB keyboard with smart card reader applications.

Key Features

  • 80C51 Core :.
  • 6 Clocks per Instruction.
  • Speed up to 16 MHz.
  • 768 Bytes RAM.
  • AT83C5122: 32 Kbytes ROM.
  • AT83C5123: 30 Kbytes ROM.
  • AT85C5122: 32 Kbytes Code RAM and 32 Kbytes ROM.
  • AT89C5122 : 32 Kbytes Flash.
  • AT85EC5122, AT83EC5123, AT83EC5122: Additional 512 Bytes EEPROM (AT24C04).
  • Multi-protocol Smart Card Interface.
  • Certified According to ISO7816, EMV2000, GIE-CB and WHQM Standards.
  • Asynch.

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Other Datasheets by Atmel (Microchip)

Part Number Description
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Features • 80C51 Core : – 6 Clocks per Instruction – Speed up to 16 MHz • 768 Bytes RAM • AT83C5122: 32 Kbytes ROM • AT83C5123: 30 Kbytes ROM • AT85C5122: 32 Kbytes Code RAM and 32 Kbytes ROM • AT89C5122 : 32 Kbytes Flash • AT85EC5122, AT83EC5123, AT83EC5122: Additional 512 Bytes EEPROM (AT24C04) • Multi-protocol Smart Card Interface – Certified According to ISO7816, EMV2000, GIE-CB and WHQM Standards – Asynchronous Protocols T = 0 and T = 1, with Direct and Inverse Modes – Step-up/Down Converter with Programmable Voltage Output: 5V and 3V (60 mA), 1.8V (20 mA) – 4 kV ESD Protection (MIL/STD 833 Class 3) • Alternate Card Support with CLK, IO and RST • USB Module with 7 Endpoints Programmable with In or Out Directions and with ISO, Bulk or Interrupt Transfers www.DataSheet4U.