identify CPU NEC

NEC

V20 (8088 compatible, 10..16MHz)
V30 (8086 compatible, 10..16MHz, some 286 instructions)
V35 (V30 w/ I/O)
V40
V45
V50
V55

VR series (64bit MIPS RISC)
VR10000
VR12000
VR4101 33MHz
VR4102
  µPD30102GM-54-8ED
  µPD30102S1-54-3C
VR4111 100MHz, 32bit external memory bus
  µPD30111S1-66-3C
  µPD30111S1-80-3C
VR4111A
  µPD30111
VR4121 131MHz (used in Casio Cassiopeia E-105/115)
  µPD30121
VR4121A
  µPD30121F1
VR4122 150MHz (used in Casio Cassiopeia E-125)
  µPD30122F1
VR4131
  µPD30131
VR4181 66MHz (used in Agenda VR3D PDA)
  µPD30181
VR4300
  µPD30200GD-100-MBB (used in Nintendo 64)
  µPD30200GD-133-MBB
VR4305
VR4310
  µPD30210GD-100-MBB
  µPD30210GD-133-MBB
  µPD30210GD-167-MBB
VR5000 PowerVR
VR5432 166..200 MHz, 64KB
  µPD30541
VR5500
  µPD30550