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EMC646SP16KU-45L Datasheet(PDF) 4 Page - Emerging Memory & Logic Solutions Inc |
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EMC646SP16KU-45L Datasheet(HTML) 4 Page - Emerging Memory & Logic Solutions Inc |
4 / 52 page EMC646SP16K 4Mx16 CellularRAM AD-MUX 4 Preliminary List of Figures Figure 1: Functional Block Diagram - 4 Meg x 16 ............................................................................................................................. 6 Figure 2: Power-Up Initialization Timing ........................................................................................................................................... 9 Figure 3: READ Operation ................................................................................................................................................................ 11 Figure 4: WRITE Operation .............................................................................................................................................................. 11 Figure 5: Burst Mode READ(4-word burst)........................................................................................................................................ 12 Figure 6: Burst Mode WRITE (4-word burst)...................................................................................................................................... 13 Figure 7: Refresh Collision During Variable-Latency READ Operation ............................................................................................. 14 Figure 8: Wired-OR WAIT Configuration ........................................................................................................................................... 15 Figure 9: Configuration Register WRITE, Asynchronous Mode, Followed by READ ARRAY Operation .......................................... 17 Figure 10: Configuration Register WRITE, Synchronous Mode, Followed by READ ARRAY Operation ............................................ 18 Figure 11: Register READ, Asynchronous Mode, Followed by READ ARRAY Operation .................................................................. 19 Figure 12: Register READ, Synchronous Mode, Followed by READ ARRAY Operation .................................................................... 20 Figure 13: Load Configuration Register .............................................................................................................................................. 22 Figure 14: Read Configuration Register ............................................................................................................................................. 22 Figure 15: Bus Configuration Register Definition ................................................................................................................................ 23 Figure 16: WAIT Configuration During Burst Operation ...................................................................................................................... 26 Figure 17: Latency Counter (Variable Initial Latency, No Refresh Collision) ....................................................................................... 27 Figure 18: Latency Counter (Fixed Latency) ....................................................................................................................................... 27 Figure 19: Refresh Configuration Register Mapping ........................................................................................................................... 28 Figure 20: AC Input / Output Reference Waveform ............................................................................................................................ 31 Figure 21: AC Output Load Circuit ...................................................................................................................................................... 31 Figure 22: Initialization Period ............................................................................................................................................................ 36 Figure 23: Asynchronous READ ......................................................................................................................................................... 36 Figure 24: Single-Access Burst READ Operation - Variable Latency ................................................................................................. 37 Figure 25: 4-Word Burst READ Operation - Variable Latency ............................................................................................................. 38 Figure 26: Single-Access Burst READ Operation - Fixed Latency ...................................................................................................... 39 Figure 27: 4-Word Burst READ Operation - Fixed Latency ................................................................................................................. 40 Figure 28: Burst READ Terminate at End-of-Row (Wrap off) .............................................................................................................. 41 Figure 29: Burst READ Row Boundary Crossing ................................................................................................................................ 42 Figure 30: Asynchronous WRITE ....................................................................................................................................................... 43 Figure 31: Burst WRITE Operation - Variable Latency Mode ............................................................................................................. 44 Figure 32: Burst WRITE Operation - Fixed Latency Mode .................................................................................................................. 45 Figure 33: Burst WRITE Terminate at End-of-Row (Wrap off) ............................................................................................................ 46 Figure 34: Burst WRITE Row Boundary Crossing .............................................................................................................................. 47 Figure 35: Burst WRITE Followed by Burst READ .............................................................................................................................. 48 Figure 36: Asynchronous WRITE Followed by Burst READ ............................................................................................................... 49 Figure 37: Burst READ Followed by Asynchronous WRITE ............................................................................................................... 50 Figure 38: Asynchronous WRITE Followed by Asynchronous READ ................................................................................................. 51 |
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