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參數(shù)資料
| 型號(hào)： | X28HC256JIZ-15 |
| 廠(chǎng)商： | INTERSIL CORP |
| 元件分類(lèi)： | DRAM |
| 英文描述： | 5 Volt, Byte Alterable EEPROM |
| 中文描述： | 32K X 8 EEPROM 5V, 150 ns, PQCC32 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MS-016AE, LCC-32 |
| 文件頁(yè)數(shù)： | 8/15頁(yè) |
| 文件大?。?/td> | 294K |
| 代理商： | X28HC256JIZ-15 |
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8
FN8108.1
May 17, 2006
SOFTWARE ALGORITHM
Selecting the software data protection mode requires
the host system to precede data write operations by a
series of three write operations to three specific
addresses. Refer to Figure 6 and 7 for the sequence.
The three-byte sequence opens the page write window,
enabling the host to write from one to one hundred
twenty-eight bytes of data. Once the page load cycle
has been completed, the device will automatically be
returned to the data protected state.
SOFTWARE DATA PROTECTION
Figure 6. Timing Sequence—Byte or Page Write
Figure 7. Write Sequence for Software Data
Protection
Regardless of whether the device has previously been
protected or not, once the software data protection
algorithm is used and data has been written, the
X28HC256 will automatically disable further writes
unless another command is issued to cancel it. If no
further commands are issued the X28HC256 will be
write protected during power-down and after any sub-
sequent power-up.
Note:
Once initiated, the sequence of write operations
should not be interrupted.
CE
WE
(V
CC
)
Write
Protected
V
CC
0V
Data
Address
AAA
5555
55
2AAA
A0
5555
≤
t
BLC MAX
Writes
ok
Byte
or
Age
t
WC
Write Last
Byte to
Last Address
Write Data XX
to Any
Address
Write Data A0
to Address
5555
Write Data 55
to Address
2AAA
Write Data AA
to Address
5555
After t
WC
Re-Enters Data
Protected State
Optional
Byte/Page
Load Operation
Byte/Page
Load Enabled
X28HC256
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X28HC256JZ-12 | 5 Volt, Byte Alterable EEPROM |
| X28HC256JZ-15 | 5 Volt, Byte Alterable EEPROM |
| X28HC256PIZ-12 | 5 Volt, Byte Alterable EEPROM |
| X28HC256PZ-12 | 5 Volt, Byte Alterable EEPROM |
| X28HC256PZ-15 | 5 Volt, Byte Alterable EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X28HC256JIZ-15T1 | 功能描述:IC EEPROM 256KBIT 150NS 32PLCC RoHS:是 類(lèi)別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類(lèi)型:FLASH 存儲(chǔ)容量:1M (64K x 16) 速度:150ns 接口:并聯(lián) 電源電壓:3 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:48-TFSOP（0.724"，18.40mm 寬） 供應(yīng)商設(shè)備封裝:48-TSOP 包裝:托盤(pán) |
| X28HC256JIZ-90 | 制造商:Intersil Corporation 功能描述:EEPROM PARALLEL 256KBIT 32KX8 5V 32PLCC - Rail/Tube |
| X28HC256JIZ-90T1 | 制造商:Intersil Corporation 功能描述:32K X 8 EEPROM,CMOS,HIGHSPEED,32LD PLCC,IND.,90NS, PB FREE,T - Tape and Reel |
| X28HC256JM-12 | 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:5 Volt, Byte Alterable EEPROM |
| X28HC256JM-15 | 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:5V, Byte Alterable EEPROM |
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