m29dw256g Numonyx, m29dw256g Datasheet - Page 6

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m29dw256g

Manufacturer Part Number
m29dw256g
Description
256-mbit X16, Multiple Bank, Page, Dual Boot 3 V Supply Flash Memory
Manufacturer
Numonyx
Datasheet

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List of figures
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Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
TSOP connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
TBGA and LBGA connections (top view through package) . . . . . . . . . . . . . . . . . . . . . . . . 10
Block addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Software protection scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Lock register program flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
NVPB program/erase algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Data polling flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Data toggle flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
AC measurement load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
AC measurement I/O waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Power-up waiting timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Random read AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Page read AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Write enable controlled program waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Chip enable controlled program waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Reset AC waveforms (no program/erase ongoing). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Reset during program/erase operation AC waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Accelerated program timing waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Data polling AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Toggle/alternative toggle bit polling AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
TSOP56 – 56 lead plastic thin small outline, 14 x 20 mm, package outline . . . . . . . . . . . . 65
TBGA64 10 x 13 mm - 8 x 8 active ball array, 1 mm pitch, package outline . . . . . . . . . . . 66
LBGA64 11 x 13 mm—8 x 8 active ball array, 1 mm pitch, package outline . . . . . . . . . . . 67
Write to buffer program flowchart and pseudocode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Enhanced buffered program flowchart and pseudocode . . . . . . . . . . . . . . . . . . . . . . . . . . 82

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