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CAT28F102T14R-45T Datasheet(PDF) 7 Page - Catalyst Semiconductor |
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CAT28F102T14R-45T Datasheet(HTML) 7 Page - Catalyst Semiconductor |
7 / 14 page CAT28F102 7 Doc. No. 25038-0A 2/98 F-1 FUNCTION TABLE(1) Pins Mode CE OE WE VPP I/O Notes Read VIL VIL VIH VPPL DOUT Output Disable VIL VIH VIH X High-Z Standby VIH XX VPPL High-Z Signature (MFG) VIL VIL VIH VPPL 0031H A0 = VIL, A9 = 12V Signature (Device) VIL VIL VIH X 0051H A0 = VIH, A9 = 12V Program/Erase VIL VIH VIL VPPH DIN See Command Table Write Cycle VIL VIH VIL VPPH DIN During Write Cycle Read Cycle VIL VIL VIH VPPH DOUT During Write Cycle Output Disable VIL VIH VIH VPPH High-Z During Write Cycle Standby VIH XX VPPH High-Z During Write Cycle WRITE COMMAND TABLE Commands are written into the command register in one or two write cycles. The command register can be altered only when VPP is high and the instruction byte is latched on the rising edge of WE. Write cycles also internally latch addresses and data required for programming and erase operations. Pins First Bus Cycle Second Bus Cycle Mode Operation Address DIN Operation Address DIN DOUT Set Read Write X XX00H Read AIN DOUT Read Sig. (MFG) Write X XX90H Read 0000 0031H Read Sig. (Device) Write X XX90H Read 0001 0051H Erase Write X XX20H Write X XX20H Erase Verify Write AIN XXA0H Read X DOUT Program Write X XX40H Write AIN DIN Program Verify Write X XXC0H Read X DOUT Reset Write X XXFFH Write X XXFFH Note: (1) Logic Levels: X = Logic ‘Do not care’ (VIH, VIL, VPPL, VPPH) |
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