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TICPAL22V10Z-30IFN Datasheet(PDF) 7 Page - Texas Instruments |
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TICPAL22V10Z-30IFN Datasheet(HTML) 7 Page - Texas Instruments |
7 / 22 page FEEDBACK AND OUTPUT CONFIGURATION TICPAL22V10Z-25C, TICPAL22V10Z-30I EPIC ™ CMOS PROGRAMMABLE ARRAY LOGIC CIRCUITS SRPS007C – D3323, SEPTEMBER 1989 – REVISED FEBRUARY 1992 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 output logic macrocell options (see Figure 1) C1 1S 1D R S1 = 0 S0 = 0 C1 1S 1D R S1 = 0 S0 = 1 REGISTER FEEDBACK, REGISTERED, ACTIVE-LOW OUTPUT REGISTER FEEDBACK, REGISTERED, ACTIVE-HIGH OUTPUT S1 = 1 S0 = 0 S1 = 1 S0 = 1 I/O FEEDBACK, COMBINATIONAL, ACTIVE-LOW OUTPUT I/O FEEDBACK, COMBINATIONAL, ACTIVE-HIGH OUTPUT MACROCELL FEEDBACK AND OUTPUT FUNCTION TABLE CELL SELECT S1 S0 0 0 Register feedback Registered Active low 0 1 Register feedback Registered Active high 1 0 I/O feedback Combinational Active low 1 1 I/O feedback Combinational Active high 0 = erased cell, 1 = programmed cell S1 and S0 are select-function cells as shown in the output logic macrocell diagram. Figure 1. Resultant Macrocell Feedback and Output Logic After Programming |
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