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A3265DX-PQB Datasheet(PDF) 6 Page - Actel Corporation |
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A3265DX-PQB Datasheet(HTML) 6 Page - Actel Corporation |
6 / 84 page Inte gra t or Serie s FP GAs: 1 200XL a nd 3200 DX F amilie s 6 Discontinued – v3.0 L ogi c Mod ul es 3200DX and 1200XL devices contain three types of logic modules: combinatorial (C-modules), sequential (S-modules), and decode (D-modules). 1200XL devices contain only the C-module and S-module, while the 3200DX devices contain D-modules and dual-port SRAM modules in addition to the S-module and C-module. The C-module is shown in Figure 1 and implements the following function: Y=!S1*!S0*D00+!S1*S0*D01+S1*!S0*D10+S1*S0*D11 where: S0=A0*B0 S1=A1+B1 The S-module shown in Figure 2 is designed to implement high-speed sequential functions within a single logic module. The S-module implements the same combinatorial logic function as the C-module while adding a sequential element. The sequential element can be configured as either a D-type flip-flop or a transparent latch. To increase flexibility, the S-module register can be bypassed so that it implements purely combinatorial logic. Figure 1 • C-Module Implementation D00 D01 D10 D11 S0 S1 Y A0 B0 A1 B1 Figure 2 • S-Module Implementation D11 D01 D00 D10 Y OUT S1 S0 Up to 7-Input Function Plus D-Type Flip-Flop with Clear D11 D01 D00 D10 Y S1 S0 Up to 7-Input Function Plus Latch Y Up to 4-Input Function Plus Latch with Clear D11 D01 D00 D10 YOUT S1 S0 Up to 8-Input Function (Same as C-Module) S D1 D0 CLR DQ OUT CLR DQ OUT GATE DQ GATE |
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