M29FxxxFT, M29FxxxFB
Block protection
the end. Chip Unprotect can take several seconds and a user message should be provided
to show that the operation is progressing.
Table 37. Programmer Technique Bus Operations, BYTE = V or V
IH
IL
Address Inputs
A0-A19
Data Inputs/Outputs
DQ15A–1, DQ14-DQ0
Operation
E
G
W
A9 = VID, A12-A19 Block Address
Others = X
Block Protect
VIL
VID VIL Pulse
X
X
A9 = VID, A12 = VIH, A15 = VIH
Others = X
Chip Unprotect
VID VID VIL Pulse
A0 = VIL, A1 = VIH, A6 = VIL,
A9 = VID, A12-A19 Block Address
Pass = XX01h
Retry = XX00h
Block Protection
Verify
VIL
VIL
VIL
VIL
VIH
Others = X
A0 = VIL, A1 = VIH, A6 = VIH,
A9 = VID, A12-A19 Block Address
Retry = XX01h
Pass = XX00h
Block Unprotection
Verify
VIH
Others = X
61/67
NUMONYX [ NUMONYX B.V ]
