參數(shù)資料
型號(hào)： S29CD016J1MFFM133
廠商： SPANSION LLC
元件分類： PROM
英文描述： 32/16 Megabit CMOS 2.6 Volt or 3.3 Volt-only Simultaneous Read/Write, Dual Boot, Burst Mode Flash Memory with VersatileI/O
中文描述： 512K X 32 FLASH 2.7V PROM, 54 ns, PBGA80
封裝： 13 X 11 MM, 1 MM PITCH, LEAD FREE, FORTIFIED, BGA-80
文件頁(yè)數(shù)： 41/76頁(yè)
文件大?。?/td> 1245K
代理商： S29CD016J1MFFM133
September27,2006 S29CD-J_CL-J_00_B1
S29CD-J & S29CL-J Flash Family
39
D a t a
S h e e t
( P r e l i m i n a r y )
1. Persistently Locked. A sector is protected and cannot be changed.
2. Dynamically locked. The selected sectors are protected and can be altered via software
commands.
3. Unlocked. The sectors are unprotected and can be erased and/or programmed.
These states are controlled by the bit types described between page 39 and page 42.
Notes
1. If the password mode is chosen, the password must be programmed before setting the
corresponding lock register bit. The user must be sure that the password is correct when the
Password Mode Locking Bit is set, as there is no means to verify the password afterwards.
2. If both lock bits are selected to be programmed (to zeros) at the same time, the operation aborts.
3. Once the Password Mode Lock Bit is programmed, the Persistent Mode Lock Bit is permanently
disabled, and no changes to the protection scheme are allowed. Similarly, if the Persistent Mode
Lock Bit is programmed, the Password Mode is permanently disabled.
4. It is important that the mode is explicitly selected when the device is first programmed, rather than
relying on the default mode alone. This is so that it is impossible for a system program or virus to
later set the Password Mode Locking Bit, which would cause an unexpected shift from the default
Persistent Sector Protection Mode into the Password Protection Mode.
5. If the user attempts to program or erase a protected sector, the device ignores the command and
returns to read mode. A program command to a protected sector enables status polling for
approximately 1 μs before the device returns to read mode without modifying the contents of the
protected sector. An erase command to a protected sector enables status polling for approximately
50 μs, after which the device returns to read mode without having erased the protected sector.
6. For the command sequence required for programming the lock register bits, refer to
Section 20.1,
Command Definitions
on page 69
.
9.2
Persistent Protection Bits
The Persistent Protection Bits are unique and nonvolatile. A single Persistent Protection Bit is assigned to a
maximum for four sectors (see the sector address tables for specific sector protection groupings). All eight-
Kbyte boot-block sectors have individual sector Persistent Protection Bits (PPBs) for greater flexibility.
Notes
1. Each PPB is individually programmed and all are erased in parallel. There are no means for
individually erasing a specific PPB and no specific sector address is required for this operation.
2. If a PPB requires erasure, all of the sector PPBs must first be programmed prior to PPB erasing. It
is the responsibility of the user to perform the preprogramming operation. Otherwise, an already
erased sector PPB has the potential of being over-erased. There is no hardware mechanism to
prevent sector PPB over-erasure.
3. If the PPB Lock Bit is set, the PPB Program or erase command does not execute and times-out
without programming or erasing the PPB.
9.2.1
Programming PPB
The PPB Program Command is used to program, or set, a given PPB. The first three cycles in the PPB
Program Command are standard unlock cycles. The fourth cycle in the PPB Program Command executes the
pulse which programs the specified PPB. The user must wait either 100 μs or until DQ6 stops toggling before
executing the fifth cycle, which is the read verify portion of the PPB Program Command. The sixth cycle
outputs the status of the PPB Program operation.
In the event that the program PPB operation was not successful, the user can loop directly to the fourth cycle
of the PPB Program Command to perform the program pulse and read verification again. After four
unsuccessful loops through the program pulse and read verification cycles the PPB programming operation
should be considered a failure.
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參數(shù)描述
S29CD016J1MQAI000 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32/16 Megabit CMOS 2.6 Volt or 3.3 Volt-only Simultaneous Read/Write, Dual Boot, Burst Mode Flash Memory with VersatileI/O
S29CD016J1MQAI002 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32/16 Megabit CMOS 2.6 Volt or 3.3 Volt-only Simultaneous Read/Write, Dual Boot, Burst Mode Flash Memory with VersatileI/O
S29CD016J1MQAI003 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32/16 Megabit CMOS 2.6 Volt or 3.3 Volt-only Simultaneous Read/Write, Dual Boot, Burst Mode Flash Memory with VersatileI/O
S29CD016J1MQAI033 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32/16 Megabit CMOS 2.6 Volt or 3.3 Volt-only Simultaneous Read/Write, Dual Boot, Burst Mode Flash Memory with VersatileI/O
S29CD016J1MQAI100 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32/16 Megabit CMOS 2.6 Volt or 3.3 Volt-only Simultaneous Read/Write, Dual Boot, Burst Mode Flash Memory with VersatileI/O
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