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MT28S4M16LC Datasheet(PDF) 3 Page - Micron Technology |
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MT28S4M16LC Datasheet(HTML) 3 Page - Micron Technology |
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3 / 48 page  3 4 Meg x 16 SyncFlash Micron Technology, Inc., reserves the right to change products or specifications without notice. MT28S4M16LC_6.p65 – Rev. 6, Pub. 9/01 ©2001, Micron Technology, Inc. 4 MEG x 16 SYNCFLASH MEMORY TABLE OF CONTENTS Functional Block Diagram – 4 Meg x 16 ............... 4 Pin Descriptions ...................................................... 5 SDRAM Interface Functional Description .......... 7 Initialization ...................................................... 7 Register Definition ............................................ 7 Mode Register ............................................... 7 Burst Length ............................................ 7 Burst Type ............................................... 7 CAS Latency ............................................ 9 Operating Mode ...................................... 9 Write Burst Mode .................................... 9 Commands ........................................................ 10 Truth Table 1 (Commands and DQM Operation) ....... 10 Truth Table 2 (Commands Sequences) ....................... 11 Command Inhibit ........................................ 13 No Operation (NOP) .................................... 13 Load Mode Register ...................................... 13 Active ............................................................ 13 Read .............................................................. 13 Write ............................................................. 13 Active Terminate .......................................... 13 Burst Terminate ............................................ 13 Load Command Register ............................. 13 Operation .......................................................... 14 Bank/Row Activation .................................. 14 Reads ............................................................ 15 Writes ........................................................... 20 Active Terminate .......................................... 20 Power-Down ................................................ 20 Clock Suspend ............................................. 20 Burst Read/Single Write ............................... 21 Truth Table 3 (CKE) .................................................. 21 Truth Table 4 (Current State, Same Bank) .................. 22 Truth Table 5 (Current State, Different Bank) ............. 23 Flash Memory Functional Description ............... 24 Command Interface .................................... 24 Memory Architecture ................................... 24 Protected Blocks ........................................... 24 Command Execution Logic (CEL) ............... 25 Internal State Machine (ISM) ...................... 25 ISM Status Register ...................................... 25 Output (READ) Operations .............................. 25 Memory Array ............................................. 25 Status Register .............................................. 25 Device Configuration Registers ................... 25 Input Operations .............................................. 26 Memory Array ............................................. 26 Command Execution ........................................ 26 Status Register .............................................. 27 Device Configuration .................................. 27 Program Sequence ....................................... 27 Erase Sequence ............................................. 27 Program and Erase NVMode Register ......... 27 Block Protect/Unprotect Sequence .............. 27 Device Protect Sequence .............................. 28 Reset/Deep Power-Down Mode ....................... 28 Error Handling .................................................. 28 PROGRAM/ERASE Cycle Endurance ................ 28 Absolute Maximum Ratings .................................. 35 DC Electrical Characteristics and Operating Conditions ................................... 35 ICC Specifications and Conditions .......................... 36 Capacitance ............................................................ 36 Electrical Characteristics and Recommended Operating Conditions (Timing Table) ............. 37 AC Functional Characteristics ............................. 38 Notes ...................................................................... 39 Timing Waveforms Initialize and Load Mode Register ..................... 40 Clock Suspend Mode ......................................... 41 Reads Read .............................................................. 42 Alternating Bank Read Accesses ................... 43 Read – Full-Page Burst ................................. 44 Read – DQM Operation .............................. 45 Program Program/Erase (Bank a followed by READ to bank b).. 46 Program/Erase (Bank a followed by READ to bank a).. 47 |
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