memory products - Al Kossow's Bitsavers

M27128APROGRAMMING OPERATION (T amb=25°C ±5°C, Vcc(1)=6V ±O.25V, Vpp(l) = 12.5V ±O.3V)DC AND OPERATING CHARACTERISTICSymbolParameterTest ConditionsValues(See note 1) Min. Typ. Max.UnitIII Input Current (All Inputs) VIN = Vil or VIH 10 p.A.Vil Input Low Level (All Inputs) -0.1 0.8 VVIH Input High Level 2.0 VCC+ 1 VVOL Output Low Voltage During Verify IOl=2.1 mA 0.45 VVOH Output High Voltage During Verify IOH = - 400 p.A. 2.4 VICC2 V ce Supply Current (Program & Verify) 100 mAIpP2 Vpp Supply Current (Program) CE=Vll 50 mAVIO A9 Electronic Signature Voltage 11.5 12.5 VAC CHARACTERISTICSSymbolParameterTest ConditionsValues(See note 1) Min. Typ. Max. UnittAS Address Setup Time 2 1'8tOES OE Setup Time 2 1'8tos Data Setup Time 2 p,StAH Address Hold Time 0 p,StOH Data Hold Time 2 1'8tOFP(4) Output Enable Output Float Delay 0 130 n8tvps Vpp Setup Time 2 1'8tvcs Vce Setup Time 2 1'8tCES CE Setup Time 2 1'8tpw PGM Initial Program Pulse Width (see Note 3) 0.95 1.0 1.05 mstopw PGM Overprogram Pulse Width (see Note 2) 2.85 78.75 mstOE Data Valid from OE 150 nsNotes:1. Vee must be applied simultaneously or before Vpp and removed simultaneously or after Vpp.2. The length of the overprogram pulse may vary from 2.85msec to 78.75msec as a function of the iteration counter value X.3. Initial Program Pulse width tolerance is lmsec ±5%.4. This parameter is only sampled and not 100% tested.Output Float is defined as the pOint where data is no longer driven (see timing diagram).711059