EMC326SP16AK Datasheet, PDF (3/52 Pages) Emerging Memory & Logic Solutions Inc – 2Mx16 bit CellularRAM AD-MUX

Preliminary
EMC326SP16AK
2Mx16 CellularRAM AD-MUX
Table of Contents
Features.................................................................................................................................................................................. 2
Options............................................................................................................................................................................... 2
General Description................................................................................................................................................................. 6
Functional Description............................................................................................................................................................. 9
Power-Up Initialization........................................................................................................................................................ 9
Bus Operating Modes.............................................................................................................................................................. 10
Asynchronous Mode........................................................................................................................................................... 10
Burst Mode Operation......................................................................................................................................................... 12
Mixed-Mode Operation ....................................................................................................................................................... 15
WAIT Operation ................................................................................................................................................................. 15
LB# / UB# Operation........................................................................................................................................................... 15
Low-Power Operation......... .................................................................................................................................................... 16
Standby Mode Operation ................................................................................................................................................... 16
Temperature Compensated Refresh................................................................................................................................... 16
Partial Array Refresh .......................................................................................................................................................... 16
Registers................................................................................................................................................................................. 17
Access Using CRE ............................................................................................................................................................. 17
Software Access ................................................................................................................................................................ 21
Bus Configuration Register................................................................................................................................................. 23
Burst Length (BCR[2:0]) Default = Continuous Burst ..................................................................................................... 24
Burst Wrap (BCR[3]) Default = No Wrap ........................................................................................................................ 24
Drive Strength (BCR[5:4]) Default = Outputs Use Half-Drive Strength ........................................................................... 25
WAIT Polarity (BCR[10]) Default = WAIT Active HIGH................................................................................................... 26
Initial Access Latency (BCR[14]) Default = Variable....................................................................................................... 26
Operating Mode (BCR[15]) Default = Asynchronous Operation..................................................................................... 28
Refresh Configuration Register........................................................................................................................................... 28
Device Identification Register.............................................................................................................................................. 29
Electrical Characteristics......................................................................................................................................................... 30
Timing Requirements.............................................................................................................................................................. 32
Timing Diagrams..................................................................................................................................................................... 36
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