memory products - Al Kossow's Bitsavers

MK45264/45265(N)-55noAC ELECTRICAL CHARACTERISTICS(TA = O· to 7O"C. Vee = 5.0 ±10%)ALT. STD.SYMBOL SYMBOLPARAMETERtRSR tRSH.WH Reset Recovery TimetRFV tRSL.FFH Reset to Full Flag ValidtRFV tRSL-AFH Reset to AF Flag ValidtRFV tRSL.EFL Reset to Empty Flag ValidtRFV tRSL-AEL Reset to AE Flag ValidtROX tRSL.QX Outout Hold from AS LowtROZ tRSL.QZ RS Low to Output High Z55 70MIN MAX MIN MAX UNITS NOTES75 95 ns70 90 ns 370 90 ns 370 90 ns 370 90 ns 30 0 ns 340 50 ns 2tFG tWH·GL FIFO Mode to X-ceiver Mode 0 0 nstFG tRH.GL FIFO Mode to X-ceiver Mode 0 0 nstGF tGH-WL X-ceiver Mode to FIFO Mode 5 5 nstGF tGH·RL X-ceiver Mode to FIFO Mode 5 5 nstGOL tGL.QL G to Output Low ZtGQV tGL.QV G to Output ValidtGOX tGH·OX Output Hold from GtGQZ tGH.OZ G to Output High Ztovav tov·av Input to Output Validtoxox tox·ox Input to Output InvalidtOOL tOIRV·OL Rx/DIR to Output Low Ztoav tOIRV.QV Rx/DIR to Output Validtoox tOIRV.QX Output Hold from Rx/DIRtooz tOIRV.QZ Rx/DIR to Output High Z0 0 ns 275 95 ns 30 0 ns 340 50 ns 255 70 ns 310 10 ns 30 0 ns 255 70 ns 30 0 ns 340 50 ns 2NOTES1. All AC Electrical Characteristics measured under conditionsspecified in "AC Test Conditions".2. Measured wl5pf Output Load. See Equivalent Load CircuitB.3. Measured w/30pf Output Load. See Equivalent Load CircuitA.4. Applies to EFX. FFX. FFy. EFy. Measured w/30pf OutputLoad. See Equivalent Load Circuit C.5. Applies to AEX. AFx. AEy. AFy. Measured w/30pf OutputLoad. See Equivalent Load Circuit C.6. Writes beginning a) more than tl (max) before FF goeshigh will be blocked.lliess than tl (max) before and lessthan tFR (min) aft~F goes high may be performed.c) tFR (min) after FF goes high will be performed.7. Reads beginning a) more than tl (max) before EF goeshigh will be blocked.lliess than tl (max) before and lessthan tFR (min) aft~EF goes high may be performed.c) tFR (min) after EF goes high will be performed.~ SGS-tHOMSON"1l lIID©lIII@rn~l