NXP 89C61X2-like datasheet
- 89C668 - 80C51 8-bit Flash microcontroller
- 89C669 - P89C669
- 89C51 - 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
- 89C51RB2 - 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
- 89C51RC2 - 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
- 89C51RD2 - 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
