Nxp single chip arm7 microcontrollers nxp lpc2194hbd64 151 the lpc2194hbd64 is based on a 1632 bit arm7tdmi s cpu with real time emulation and embedded trace support together with 256 kb of embedded high speed flash memory a 128 bit wide memory interface and a unique accelerator architecture enable 32 bit code execution at maximum clock rate for critical code size applications the alternative 16 bit thumb mode reduces code by more than 30 with minimal performance penaltywith its compa