1 - Al Kossow's Bitsavers

SMJ256465,536-BI1 ERASABLE PROGRAMMABLE READ-ONLY MEMORIESrecommended operating conditions, PARAMETERSMJ2564MIN NOM MAXSupply voltage, VCC (see Note 2) 4.5 5 5.5 VSupply voltage, Vpp (see Note 3) VCC VSupply voltage, VSS 0 VHigh-level input voltage, V,H 2.2 VCC+ 1 VLow-level input voltage, V,L -0.1 t 0.8 VRead cycle time, tc(rd) 450 nsOperating case temperature, T C -55 125 °cUNITNOTES:2. Vee must be applied'before or at the same time as Vpp and removed after or at the same time as Vpp. The device must not be inserted intoor removed from the board when Vpp or Vee is applied so that the device is not damaged.3. Vpp can be connected to Vee directly (except in the program model. Vee supply current in this case would be ICC + Ipp. During programming,Vpp must be maintained at 25 V (± 1 V). .t The algebraic convention, where the more negative limit is designated as minimum, is used in this data sheet for logic voltage levels and time intervals.electrical characteristics over full ranges of recommended operating conditionsm"'C::aos:cCD