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p: tPDSTORE approximate td(E)S or td(H)S; tDELAY approxirriate tdis(H)S q: After tw(H)S HSB is hold down internal by STORE operation. r: An automatic RECALL also takes place at power up, starting when Vcc exceeds VSWITCH and takes tRESTORE VCC must not drop below VSWITCH once it has been exceeded for the RECALL to function properly. s: Once the software controlled STORE or RECALL cycle is initiated, it completes automatically, ignoring all inputs. t: Noise on the E pin may trigger multiple READ cycles from the same address and abort the address sequence.