A time series classifying memory includes an enumerated group of synapses. Each synapse of the group has a junction including pre-synaptic emitters communicating with post synaptic receptors. A single pathway is input to each synapse of the group, and when innervated, stimulates the junctions. Each successive synapse has successively more post synaptic receptors according to a fixed ratio. At each junction, quanta of neurotransmitter emitted from the emitters bind with available receptors. When all the receptors at a junction have been bound, the junction goes refractory. The synapse adjacent to the last junction to go refractory is marked. During a training mode the mark is a Long Term Potentiation (LTP) mark. During a live mode the mark is a Short Term Potentiation (STP) mark. The input is classified upon successful correlation of the LTP mark with the STP mark. A clock operable with synaptic matrix models this process.