NXP's NFC tech lets you unlock cars with a phone

Chipmaker NXP announced that five automakers will implement its Near Field Communication technology into door handles, letting drivers use phones and other devices to access their cars. NXP's NCx3320 NFC chip fits inside a typical car door handle, meets automotive requirements to tolerate very high and very low temperatures, and includes a low power mode so it can operate even when a car's battery lacks the juice to start the engine.