PHOTOMULTlPLlER TUBES R464, R585 For Photon Count.
IDT79R4640 - LOW-COST EMBEDDED ORION RISC MICROPROCESSOR
BMR464 - PoL Regulator
BMR464-8x12 - PoL Regulator
BMR464-8x04 - PoL Regulator
MC95FR464 - 8-BIT MICROCONTROLLERS
SIR464DP - N-Channel MOSFET
R464 - PHOTOMULTlPLlER TUBES