89C5122 - ATMEL Corporation

89C5122 AT89C5122

AT8xC5122 is a high-performance CMOS derivative of the 80C51 8-bit microcontrollers optimized for USB keyboard with smart card reader applications. AT8xC5122 retains the features of the Atmel 80C51 with 32 Kbytes ROM capacity, 768 bytes of internal RAM, a 4-level interrupt system, two 16-bit timer/counters (T0/T1), a full duplex enhanced UART (EUART) with b.

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 .