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EMC646SP16JV-12LL Datasheet(PDF) 4 Page - Emerging Memory & Logic Solutions Inc |
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EMC646SP16JV-12LL Datasheet(HTML) 4 Page - Emerging Memory & Logic Solutions Inc |
4 / 65 page EMC646SP16J 4Mx16 CellularRAM 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 (ADV# LOW) .............................................................................................................................. 10 Figure 4: WRITE Operation (ADV# LOW) ............................................................................................................................. 11 Figure 5: Page Mode READ Operation (ADV# LOW) ........................................................................................................... 11 Figure 6: Burst Mode READ (4-word burst)........................................................................................................................... 12 Figure 7: Burst Mode WRITE (4-word burst).......................................................................................................................... 13 Figure 8: Refresh Collision During Variable-Latency READ Operation ................................................................................. 14 Figure 9: Wired or WAIT Configuration ................................................................................................................................. 15 Figure 10: Configuration Register WRITE, Asynchronous Mode, Followed by READ ARRAY Operation .............................. 17 Figure 11: Configuration Register WRITE, Synchronous Mode, Followed by READ ARRAY Operation ................................ 18 Figure 12: Register READ, Asynchronous Mode, Followed by READ ARRAY Operation ...................................................... 19 Figure 13: Register READ, Synchronous Mode, Followed by READ ARRAY Operation ........................................................ 20 Figure 14: Load Configuration Register .................................................................................................................................. 21 Figure 15: Read Configuration Register ................................................................................................................................. 21 Figure 16: Bus Configuration Register Definition .................................................................................................................... 22 Figure 17: WAIT Configuration During Burst Operation .......................................................................................................... 24 Figure 18: Latency Counter (Variable Initial Latency, No Refresh Collision) ........................................................................... 25 Figure 19: Latency Counter (Fixed Latency) ........................................................................................................................... 26 Figure 20: Refresh Configuration Register Mapping ............................................................................................................... 27 Figure 21: AC Input/Output Reference Waveform .................................................................................................................. 30 Figure 22: AC Output Load Circuit .......................................................................................................................................... 30 Figure 23: Initialization Period ................................................................................................................................................. 35 Figure 24: DPD Entry and Exit Timing Parameters ................................................................................................................. 35 Figure 25: Asynchronous READ ............................................................................................................................................. 36 Figure 26: Asynchronous READ Using ADV# ......................................................................................................................... 37 Figure 27: PAGE MODE READ .............................................................................................................................................. 38 Figure 28: Single-Access Burst READ Operation - Variable Latency ...................................................................................... 39 Figure 29: 4-Word Burst READ Operation - Variable Latency ................................................................................................. 40 Figure 30: Single-Access Burst READ Operation - Fixed Latency .......................................................................................... 41 Figure 31: 4-Word Burst READ Operation - Fixed Latency ..................................................................................................... 42 Figure 32: READ Burst Suspend ............................................................................................................................................ 43 Figure 33: Burst READ at End-of-Row (Wrap off) ................................................................................................................... 44 Figure 34: CE# - Controlled Asychronous WRITE .................................................................................................................. 45 Figure 35: LB#/UB# - Controlled Asychronous WRITE ........................................................................................................... 46 Figure 36: WE# - Controlled Asychronous WRITE ................................................................................................................. 47 Figure 37: Asynchronous WRITE Using ADV# ....................................................................................................................... 48 Figure 38: Burst WRITE Operation - Variable Latency Mode .................................................................................................. 49 Figure 39: Burst WRITE Operation - Fixed Latency Mode ...................................................................................................... 50 Figure 40: Burst WRITE at End-of-Row (Wrap off) ................................................................................................................. 51 Figure 41: Burst WRITE Followed by Burst READ .................................................................................................................. 52 Figure 42: Burst READ Interrupted by Burst READ or WRITE ................................................................................................ 53 Figure 43: Burst WRITE Interrupted by Burst WRITE or READ - Variable Latency Mode ....................................................... 54 Figure 44: Burst WRITE Interrupted by Burst WRITE or READ - Fixed Latency Mode ........................................................... 55 Figure 45: Asynchronous WRITE Followed by Burst READ ................................................................................................... 56 Figure 46: Asynchronous WRITE (ADV# LOW) Followed by Burst READ ............................................................................. 57 Figure 47: Burst READ Followed by Asynchronous WRITE (WE# - Controlled) ..................................................................... 58 Figure 48: Burst READ Followed by Asynchronous WRITE Using ADV# ............................................................................... 59 Figure 49: Asynchronous WRITE Followed by Asynchronous READ - ADV# LOW ............................................................... 60 Figure 50: Asynchronous WRITE Followed by Asynchronous READ ..................................................................................... 61 |
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