RPU
$RPU coming soon
SINGLE CHIP 4-BIT PARALLEL PROCESSOR

RPU
C4004

19712026

Intel shipped the 4004 in 1971. RPU ships it again on Robinhood Chain, built gate by gate from tokens. This copy never powers off.

RPU C4004 in a white ceramic 16-pin package with a gold lid
TABLE 1 · CHARACTERISTICSWord length4 bitTransistors2,300 (tokens)Clock1 tick / 10,000 blocksTick every~17 minTicks so farnot deployed yetChainRobinhood Chain · 4663Contract0x4aa8...Be2A
3D model of the RPU die: functional blocks, 4-bit aluminium buses, bond pads and gold bond wires
1 · Fetch LDM 0The program counter puts address 0x000 on the 4-bit bus. It leaves the chip through pins D0 to D3 to reach the ROM.
ON THE BUS · D3 D2 D1 D0
0000
address 0x000 out to ROM
MACHINE CYCLE
LDM 0
FDE
XCH R0
FDE
INC R0
FDE
LD R0
FDE
WRR
FDE
JUN 0x002
FDE
lit lane = 1dark lane = 0replay of the chain's next instructions