89C5122 Description
AT8xC5122 is a high-performance CMOS derivative of the 80C51 8-bit microcontrollers optimized for USB keyboard with smart card reader applications.
89C5122 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