The ROLLS chip

Description and features of the ROLLS chip

ROLLS package

ROLLS: 256 Multi Neuron chip, Revision One.

Features

Technology	AMS0.18u CMOS 6M
Size	51.40 mm2 (9380.12um x 5480.12um)
PADs Number	368 (220 for core block and 148 for Neural Signal Processing block)
Package	PGA447.pdf (PDF, 391 KB)
Pin Information	Pin_Infor_ROLLS.ods (ODS, 92 KB)
Bonding Diagram	Bonding_Diagram_ROLLS.pdf (PDF, 3 MB)

Neurons

Adaptive I&F neurons: 1x256

Synapses

Learning/Plastic	256x256
Programmable/Short-term dynamics	256x256 (selectable as excitatory or inhibitory)
Linear excitatory	256x2 (different dynamics)
Linear inhibitory	256x1
Virtual AER programmable/4 bit precision	256x1

General description

On-chip bias generator.
Configurable recurrent connectivity.
Broadcast/multicast option.
Recurrent and multicast options are programmable through latches inside synapse cells.

For more details see:

Manual_ROLLS.odt

Manual_ROLLS_v01.odt

Block diagram

: Zoom