www.DataSheet4U.com P89LPC920/921/922 8-bit micro.
LPC921F - P89LPC921F
P89LPC921 - 8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3 V low-power Flash with 256-byte data RAM
P89LPC9211 - (P89LPC92xx) 8-bit Microcontroller
89LPC921 - P89LPC921