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Libraries Guide
Chapter 7: Design Elements (LD to NOR16)

NAND12, 16

12- and 16-Input NAND Gates with Non-Inverted Inputs

XC3000
XC4000E
XC4000X
XC5200
XC9000
Spartan
SpartanXL
Spartan2
Virtex
N/A
N/A
N/A
Macro
N/A
N/A
N/A
Macro
Macro

The NAND function is performed in the Configurable Logic Block (CLB) function generators for XC5200, Spartan2, and Virtex. The 12- and 16-input NAND functions are available only with non-inverting inputs. To invert some or all inputs, use external inverters.

Refer to the “NAND2-9” section for more information on NAND functions.

Figure 7.31 NAND12 Implementation XC5200

Figure 7.32 NAND12 Implementation Spartan2, Virtex

Figure 7.33 NAND16 Implementation XC5200

Figure 7.34 NAND16 Implementation Spartan2, Virtex