S29AL032D
Figure 18.3 Sector Protect/Unprotect Timing Diagram
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VID |
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RESET# |
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VIH |
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SA, A6, |
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Valid* |
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Valid* |
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Valid* |
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A1, A0 |
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Sector Protect/Unprotect |
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Verify |
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Data |
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60h |
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60h |
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40h |
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Status |
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Design |
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1 µs |
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Sector Protect: 150 µs |
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Sector Unprotect: 15 ms |
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CE# |
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WE# |
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New |
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OE# |
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for |
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Recommended |
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Note |
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For sector protect, A6 = 0, A1 = 1, A0 = 0. For sector unprotect, A6 = 1, A1 = 1, A0 = 0. |
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17.6 |
Alternate CE# Controlled Eras /Program Operations |
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Table 18. Alternate CE# Controlled Erase/Program Operations |
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Parameter |
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Speed Options |
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JEDEC |
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Std. |
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Description |
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70 |
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90 |
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Unit |
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tAVAV |
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tWC |
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Write Cycle Time (Note 1) |
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Min |
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70 |
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90 |
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ns |
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tAVEL |
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tAS |
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Address Setup Time |
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Min |
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0 |
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ns |
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Not |
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tELAX |
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tAH |
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Address Hold Time |
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Min |
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45 |
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45 |
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tDVEH |
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tDS |
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Data Setup Time |
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Min |
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45 |
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ns |
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tEHDX |
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tDH |
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Data Hold Time |
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Min |
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0 |
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ns |
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tOES |
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Output Enable Setup Time |
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Min |
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0 |
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ns |
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tGHEL |
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tGHEL |
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Read Recovery Time Before Write |
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Min |
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0 |
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ns |
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(OE# High to WE# Low) |
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tWLEL |
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tWS |
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WE# Setup Time |
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Min |
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0 |
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tEHWH |
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tWH |
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WE# Hold Time |
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Min |
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0 |
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tELEH |
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tCP |
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CE# Pulse Width |
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Min |
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35 |
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tEHEL |
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tCPH |
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CE# Pulse Width High |
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Min |
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30 |
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tSR/W |
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Latency Between Read and Write Operations |
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Min |
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20 |
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tWHWH1 |
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tWHWH1 |
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Programming Operation (Note 2) |
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Byte |
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Typ |
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9 |
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µs |
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Word |
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Typ |
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11 |
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Document Number: 002-02003 Rev. *B |
Page 55 of 64 |
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S29AL032D |
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Table 18. Alternate CE# Controlled Erase/Program Operations |
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Parameter |
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Speed Options |
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JEDEC |
Std. |
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Description |
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70 |
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90 |
Unit |
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tWHWH1 |
tWHWH1 |
Accelerated Programming Operation, |
Typ |
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Word or Byte (Note 2) |
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tWHWH2 |
tWHWH2 |
Sector Erase Operation (Note 2) |
Typ |
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0.7 |
sec |
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Notes
1.Not 100% tested.
2.See the Erase and Programming Performance on page 57 section for more information.
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Figure 18.1 Alternate CE# Controlled Write Operation Timings |
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555 for program |
PA for program |
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Design |
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2AA for erase |
SA for sector erase |
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555 for chip erase |
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Data# Polling |
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Addresses |
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PA |
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tWC |
tAS |
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New |
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tAH |
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tWH |
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for |
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WE# |
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tGHEL |
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OE# |
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Recommended |
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tCP |
tWHWH1 or 2 |
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CE# |
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tWS |
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tCPH |
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tBUSY |
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tDS |
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tDH |
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Data |
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DQ7# |
DOUT |
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tRH |
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A0 for program |
PD for program |
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55 for erase |
30 for sector erase |
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10 for chip erase |
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RESET# |
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RY/BY# |
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Notes
1.PA = program address, PD = program data, DQ7# = complement of the data written to the device, DOUT = data written to the device.
2.Figure indicates the last two bus cycles of the command sequence.
3.Word mode address used as an example.
Document Number: 002-02003 Rev. *B |
Page 56 of 64 |