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NEC D41256

Catalog Datasheet MFG & Type PDF Document Tags


Abstract: D41256 - 12 W Æ li W NEC Electronics Inc. uPD41256 262,144 X 1-Bit Dynamic NMOS RAM Description The , t = 0 V to VCc Iq l = 4.2 mA o u t = "5 m A 6-2 NEC Block Diagram ffPD41256 , 5.25 90 pP D41256-10 M in 4.5 M ax 5.5 80 mA RAS, CAS cyclin g ; , NEC Test C onditions (Note 10) (Note 4) (Note 11) (Note 12) l CP 20 20 40 ns to , SEC AC Characteristics (cont) H P D41256-80 P aram eter CAS hold tim e lo r CAS before RAS refresh
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D41256 - 12 NEC D41256 D41256 -15 d41256-10 HPD41256C-80 d41256-80 PD41256 93IH-5121A PPD41256 JJPD41256 JIPD41256


Abstract: NEC D41256 SEC NEC Electronics Inc. Description The uPD 41256 is a 262,144-word by 1-bit dynamic RAM , Characteristics (cont) (iPD412S6-80 fiPD41256-85 (iPD41256-10 NEC Symbol tOFF *r *RP *RAS tRSH *CAS *CSH , Read Cycle NEC 3 A -6 NEC Timing Waveforms (cont) Early Write Cycle - , Impedance Dour 3A- 7 JIPD41256 Timing Waveforms (cont) Hidden Refresh Cycle NEC 3A-8 NEC Timing Waveforms (cont) JJPD41256 RAS-Only Refresh Cycle «
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41256 41256 ram JUPD41256

NEC d41256

Abstract: D41256 NEC Electronics Inc. uPD41256 262,144 X 1-BIT dynamic nmos ram Description T he /^PD41256 is , 1256C-10 C-12 C-15 /¿PD41256L-10 L-12 L-15 NEC Pin Identification Symbol A o-A8 Page R/W Access , Block Diagram 8J-001977B 5-2 NEC Absolute Maximum Ratings Power sup p ly voltage, Vcc O , urre nt ·k l .i -1 0 10 ^A S tandby supply cu rre n t !CC2 5.0 mA fjP D41256 DC Characteristics , Characteristics T A = 0 to + 7 0 °C ; V q C = + 5 .0 V ±1 0% NEC Limits Î/PD41256-I0 pPD41256-12 Min Max 70
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