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 发表于 2018-6-1 14:32:02
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| 9.1之前的版本 ion
 XOR2X1, XNOR2X1 2-input XOR and XNOR
 TIELO, TIEHI Cells used to tie inputs to logic 1 or 0
 OAI22X1, OAI21X1 OR-AND-Invert gates with 4 (22) and 3 (21) inputs
 NOR3X1, NOR2X2, NOR2X1 2- and 3-input NOR
 NAND3X1, NAND2X2, NAND2X1 2- and 3-input NAND
 MUX2X2, MUX2NX1 2-input MUX, and 2-input inverting mux (N)
 LCX1, LCNX1 Gated latches
 INVX1, INVX2, INVX4, INVX8, INVX16 Inverters
 FILL8, FILL4, FILL2, FILL Filler cells of various widths
 These are used to fill empty spots in standard cell rows
 ENINVX1, ENINVX2 Enabled inverters (tri-state inverters)
 DCX1, DCNX1, DCBX1, DCBNX1 Edge triggered flip-flops
 BUFX8, BUFX4, BUFX2 non-inverting buffers
 AOI22X1, AOI21X1 AND-OR-Invert gates with 4 (22) and 3 (21) inputs
 AND3X1 3-input AND
 Figure 13.1: Cells contained in the UofU Digital v1 2 cell library. The cell names are coded
 with output drive strengths: X1 is unit drive strength, and Xn is n-times that unit drive
 strength. Sequential cells are coded with a C if they have a clear signal, B if they have
 both Q and Qbar outputs, and N if they are clocked on a negative edge or level
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