Duke University
// File name: projects/03/a/RAM64.hdl /** * Memory of 64 registers, each 16 bit-wide. Out hold the value * stored at the memory location specified by address. If load=1, then * the in value is loaded into the memory location specified by address * (the loaded value will …
Nand2Tetris/03/a/RAM64.hdl at master - GitHub
* The chip facilitates read and write operations, as follows: * Read: out (t) = RAM64 [address (t)] (t) * Write: If load (t-1) then RAM64 [address (t-1)] (t) = in (t-1) * In words: the chip always outputs the value stored at the memory * location specified by address.
A 64 Bit Static RAM - INSA Toulouse
A Complete 64 bit SRAM. The 64 bit SRAM memory interface is shown in figure 10-44. The 64 bits of memory are organized in words of 4 bits, meaning that DataIn and DataOut have a 4 bit width. Each data D0..D15 occupies 4 contiguous memory cells in the array. Four address lines are necessary to decode the one address among 16.
RAM64 · nand2tetris
// File name: projects/03/a/RAM64.hdl /** * Memory of 64 registers, each 16 bit-wide. Out holds the value * stored at the memory location specified by address. If load==1, then * the in value is loaded into the memory location specified by address * (the loaded value will be emitted to out from the next time step onward).
nand2tetris/chips/memory/a/RAM64.hdl at master - GitHub
// File name: projects/03/a/RAM64.hdl /** * Memory of 64 registers, each 16 bit-wide. Out holds the value * stored at the memory location specified by address. If load==1, then * the in value is loaded into the memory location specified by address * (the loaded value will be emitted to out from the next time step onward).
RAM Blocks and Register Files. March 12, 2012 ECE 152A - Digital Design Principles 7 ... 64 1111 1111 Invalid 63 1001 1001 99 10 0001 0110 16 0F 0001 0101 15 01 0000 0001 01 00 0000 0000 00 Address Data Decimal Value. March 12, 2012 ECE 152A - Digital Design Principles 18 ... Diagram. March 12, 2012 ECE 152A - Digital Design Principles 24 ...
(RAM) (Volatile) Read Only Memory (ROM) (Nonvolatile) Static RAM (SRAM) Dynamic RAM (DRAM) Shift Registers Queues First In First Out (FIFO) Last In First Out (LIFO) Serial In ... Represented with dot diagram Dots indicate 1’s in ROM Word 0: 010101 Word 1: 011001 Word 2: 100101 Word 3: 101010 ROM Array 2:4 DEC A1 A0 Y5 Y4 Y3 Y2 Y1 Y0 weak ...
• RAM structure: Cells and Chips • Memory boards and modules • Two-level memory hierarchy • The cache • Virtual memory • The memory as a sub-system of the computer
Random Access Memory (RAM) ─ a memory organized such that data can be transferred to or from any cell (or collection of cells) in a time that is not dependent upon the particular cell selected. Memory Address ─ A vector of bits that identifies a particular memory element (or collection of elements).
Simplified schematic for the 64 kbit SRAM array simulation.
This paper presents the design of three static RAM cells, designed to be radiation hard. The memory cells are designed with three different approaches and layout styles.