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Download as PDF; Printable version; In other projects ... The following is a list of 7400-series digital logic integrated circuits. ... 8-bit D flip-flops, clear and ...
The D flip-flop is widely used, and known as a "data" flip-flop. The D flip-flop captures the value of the D-input at a definite portion of the clock cycle (such as the rising edge of the clock). That captured value becomes the Q output. At other times, the output Q does not change.
In electronics, the interface logic model (ILM) is a technique to model blocks in hierarchal VLSI implementation flow. It is a gate level model of a physical block where only the connections from the inputs to the first stage of flip-flops, and the connections from the last stage of flip-flops to the outputs are in the model, including the flip-flops and the clock tree driving these flip-flops.
Gate-level Diagram of a Clocked NAND-gate SR Flip-flop: Date: 17 June 2006: ... Electronics/Latches and Flip Flops; Electronics/Print Version; Digital Electronics ...
Gate-level Diagram of a NAND-gate SR Flip-flop: Date: 17 June 2006: Source: Own Drawing in Inkscape 0.43: ... Electronics/Print Version; Digital Electronics/Flip Flop;
Of course, the particulars of the available logic gates and flip-flops are specific to each manufacturer and product family. But the general idea is always the same. Most SPLDs use either fuses or non-volatile memory cells (EPROM, EEPROM, Flash, and others) to define the functionality. These devices are also known as: Programmable array logic (PAL)
Simplified illustration of a logic cell. In general, a logic block consists of a few logic cells (each cell is called an adaptive logic module (ALM), a logic element (LE), slice, etc.). A typical cell consists of a 4-input LUT, a full adder (FA), and a D-type flip-flop (DFF), as shown to the right. The LUTs are in this figure split into two 3 ...
An asynchronous (ripple) counter is a "chain" of toggle (T) flip-flops in which the least-significant flip-flop (bit 0) is clocked by an external signal (the counter input clock), and all other flip-flops are clocked by the output of the nearest, less significant flip-flop (e.g., bit 0 clocks the bit 1 flip-flop, bit 1 clocks the bit 2 flip ...