PHILIPS P89C660/P89C662/P89C664/P89C668 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP FLASH with 512B/1KB/2KB/8KB RAM handbook
Datasheet
P89C660/P89C662/P89C664/P89C668 is an 80C51 8-bit Flash microcontroller family with 16KB/32KB/64KB ISP/IAP Flash and 512B/1KB/2KB/8KB RAM. It supports In-System Programming (ISP) and In-Application Programming (IAP), allowing for online downloading and remote programming. Additionally, it provides twice the speed of a conventional 80C51 in terms of instruction execution.
