The NCF29A1 is a very compact single chip solution, suited for automotive applications with
combined vehicle immobilization and keyless entry/start functions.
The device incorporates a Security
Transponder, PKE LF interface, UHF Transmitter and RISC Controller on the same chip and requires only a few
The device transponder operation is compatible with the Security
Transponder family PCF7937/38/39. The Transponder circuitry does not require any battery supply and full
operation is granted in case of a battery low condition.
The device comes in a tiny 32 pin QFN Package
demanding little board space (5 mm x 5 mm).
The RISC Controller is powered by NXP’s low power 16-Bit
MICRO RISC KERNEL (MRK III). The device features 8 I/O ports allowing for up to eight command button