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參數(shù)資料
| 型號(hào)： | S29CD016G0JFFM012 |
| 廠商： | Spansion Inc. |
| 英文描述： | 32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
| 中文描述： | 32兆位（1米× 32位），16兆位（512k × 32的位），2.5伏，只有突發(fā)模式，雙啟動(dòng)，同步讀/寫(xiě)閃存與VersatileI內(nèi)存/輸出 |
| 文件頁(yè)數(shù)： | 39/87頁(yè) |
| 文件大?。?/td> | 792K |
| 代理商： | S29CD016G0JFFM012 |
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November 14, 2005 S29CD-G_00_B0
S29CD-G Flash Family
37
P r e l i m i n a r y
works in conjunction with the Password Mode Locking Bit, which when set, prevents the Password
Verify command from reading the contents of the password on the pins of the device.
Write Protect (WP#)
The device features a hardware protection option using a write protect pin that prevents program-
ming or erasing, regardless of the state of the sector’s Persistent or Dynamic Protection Bits. The
WP# pin is associated with the two outermost 8Kbytes sectors in the 75% bank. The WP# pin has
no effect on any other sector. When WP# is taken to V
IL
, programming and erase operations of
the two outermost 8 Kbytes sectors in the 75% bank are disabled. By taking WP# back to V
IH
,
the two outermost 8 Kbytes sectors are enabled for program and erase operations, depending
upon the status of the individual sector Persistent or Dynamic Protection Bits. If either of the two
outermost sectors Persistent or Dynamic Protection Bits are programmed, program or erase op-
erations are inhibited. If the sector Persistent or Dynamic Protection Bits are both erased, the two
sectors are available for programming or erasing as long as WP# remains at V
IH
. The user must
hold the WP# pin at either V
IH
or V
IL
during the entire program or erase operation of the two
outermost sectors in the 75% bank.
Secured Silicon OTP Sector and Simultaneous Operation
The Secured Silicon Sector is 256 Kbytes and is located in the Small Bank. For S29CD016G and
S29CD032G devices. Spansion programs and permanently locks the Secured Silicon sector with
Unique device identification. Please contact your sales representative for the Electronic Marking
information.
Since the Secured Silicon is permanent protected by Spansion, during Simultaneous Operation,
the Secured Silicon sector cannot be erased or reprogrammed.
Persistent Protection Bit Lock
The Persistent Protection Bit (PPB) Lock is a volatile bit that reflects the state of the Password
Mode Locking Bit after power-up reset. If the Password Mode Locking Bit is set, which indicates
the device is in Password Protection Mode, the PPB Lock Bit is also set after a hardware reset (RE-
SET# asserted) or a power-up reset. The ONLY means for clearing the PPB Lock Bit in Password
Protection Mode is to issue the Password Unlock command. Successful execution of the Password
Unlock command clears the PPB Lock Bit, allowing for sector PPBs modifications. Asserting RE-
SET#, taking the device through a power-on reset, or issuing the PPB Lock Bit Set command sets
the PPB Lock Bit back to a
1
.
If the Password Mode Locking Bit is not set, indicating Persistent Sector Protection Mode, the PPB
Lock Bit is cleared after power-up or hardware reset. The PPB Lock Bit is set by issuing the PPB
Lock Bit Set command. Once set the only means for clearing the PPB Lock Bit is by issuing a hard-
ware or power-up reset. The Password Unlock command is ignored in Persistent Sector Protection
Mode.
Hardware Data Protection
The command sequence requirement of unlock cycles for programming or erasing provides data
protection against inadvertent writes. In addition, the following hardware data protection mea-
sures prevent accidental erasure or programming, which might otherwise be caused by spurious
system level signals during V
CC
power-up and power-down transitions, or from system noise.
Low V
CC
W rite I nhibit
When V
CC
is less than V
LKO
, the device does not accept any write cycles. This protects data during
V
CC
power-up and power-down. The command register and all internal erase/program circuits are
disabled, and the device resets. Subsequent writes are ignored until V
CC
is greater than V
LKO
. The
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S29CD016G0JFFM100 | 32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
| S29CD016G0JFFM102 | 32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
| S29CD016G0JFFM110 | 32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
| S29CD016G0JFFM112 | 32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
| S29CD016G0JFFM200 | 32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S29CD016G0JFFM100 | 制造商:SPANSION 制造商全稱(chēng):SPANSION 功能描述:32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
| S29CD016G0JFFM102 | 制造商:SPANSION 制造商全稱(chēng):SPANSION 功能描述:32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
| S29CD016G0JFFM110 | 制造商:SPANSION 制造商全稱(chēng):SPANSION 功能描述:32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
| S29CD016G0JFFM112 | 制造商:SPANSION 制造商全稱(chēng):SPANSION 功能描述:32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
| S29CD016G0JFFM200 | 制造商:SPANSION 制造商全稱(chēng):SPANSION 功能描述:32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O |
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