Datasheet Summary
Features
- 80C51 Core
- 12 or 6 Clocks per Instruction (X1 and X2 Modes)
- 256 Bytes Scratchpad RAM
- Dual Data Pointer
- Two 16-bit Timer/Counters: T0 and T1 T83C5121 with 16 Kbytes Mask ROM T85C5121 with 16 Kbytes Code RAM T89C5121 with 16 Kbytes Code RAM and 16 Kbytes EEPROM On-chip Expanded RAM (XRAM): 256 Bytes Versatile Host Serial Interface
- Full-duplex Enhanced UART (EUART) with Dedicated Baud Rate Generator (BRG): Most Standard Speeds up to 230K bits/s at 7.36 MHz
- Output Enable Input
- Multiple Logic Level Shifters Options (1.8V to V CC)
- Automatic Level Shifter Option Multi-protocol Smart Card Interface
- Certified with Dedicated Firmware According to ISO 7816, EMV2000,...