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S29AS008J 데이터시트(PDF) 7 Page - SPANSION

부품명 S29AS008J
상세설명  8 Megabit (1M x 8-Bit / 512K x 16-Bit) CMOS 1.8 Volt-Only Boot Sector Flash Memory
PDF  55 Pages
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November 9, 2011 S29AS008J_00_09
S29AS008J
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Data
She e t
Figures
Figure 7.1
In-System Sector Group Protect/Unprotect Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Figure 7.2
Temporary Sector Group Unprotect Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 8.1
Secured Silicon Sector Protect Verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 10.1
Program Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 10.2
Erase Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 12.1
Data# Polling Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 12.2
Toggle Bit Algorithm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 14.1
Maximum Negative Overshoot Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 14.2
Maximum Positive Overshoot Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 16.1
Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 17.1
Input Waveforms and Measurement Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 18.1
Read Operations Timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 18.2
RESET# Timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 18.3
BYTE# Timings for Read Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 18.4
BYTE# Timings for Write Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 18.5
Program Operation Timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 18.6
Chip/Sector Erase Operation Timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 18.7
Data# Polling Timings (During Embedded Algorithms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 18.8
Toggle Bit Timings (During Embedded Algorithms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 18.9
DQ2 vs. DQ6 for Erase and Erase Suspend Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Figure 18.10 Temporary Sector Group Unprotect/Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 18.11 Sector Group Protect/Unprotect Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 18.12 Alternate CE# Controlled Write Operation Timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50



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