闪存 ISP (系统内可编程)
- AT89C5115：Low Pin Count 8-Bit Microcontroller with A/D Converter and 16KB Flash
- AT89C51AC2：8-Bit Microcontroller, 32KB Flash, 2KB EEPROM, 10-Bit A/D Converter, 3V to 5.5V
- AT89C51AC3：Enhanced 8-Bit Microcontroller with 64KB Flash Memory
- AT89C51ED2：High performance 8-Bit Microcontroller 64KB Flash, 2KB EEPROM
- AT89C51IC2：8-Bit Flash Microcontroller with Two-Wire Interface
- AT89C51ID2：High-Performance CMOS Flash Version of the 80C51 CMOS Single Chip 8-Bit Microcontroller
- AT89C51RB2：8-Bit Microcontroller, 16KB Flash
- AT89C51RC2：8-Bit Microcontroller, 32KB Flash
- AT89C51RD2：High-Performance 8-Bit Microcontroller, 64KB Flash
- AT89LS51：8-Bit Microcontroller, 4KB ISP, 128 bytes RAM, 16MHz, 2.7V to 4.0V
- AT89LS52：8-Bit Microcontroller, 8KB ISP Flash, 256 bytes RAM, 16MHz 2.7V to 4.0V
- AT89S2051：8-Bit Microcontroller with 2KB ISP Flash
- AT89S4051：8-Bit Microcontroller with 4KB ISP Flash
- AT89S51：8-Bit Microcontroller, 4KB ISP Flash
- AT89S52：8-Bit Microcontroller, 8KB ISP Flash
- AT89S8253：8-Bit Microcontroller, 12KB Flash
