參數(shù)資料
型號(hào)： CAT25040VI-T3
廠商： ON SEMICONDUCTOR
元件分類(lèi)： PROM
英文描述： 512 X 8 SPI BUS SERIAL EEPROM, PDSO8
封裝： 0.150 INCH, GREEN, MS-012, SOIC-8
文件頁(yè)數(shù)： 14/17頁(yè)
文件大?。?/td> 152K
代理商： CAT25040VI-T3
CAT25010, CAT25020, CAT25040
Doc. No. MD-1006 Rev. U
6
2008 SCILLC. All rights reserved
Characteristics subject to change without notice
WRITE OPERATIONS
The CAT25010/20/40 device powers up into a write
disable state. The device contains a Write Enable
Latch (WEL) which must be set before attempting to
write to the memory array or to the status register. In
addition, the address of the memory location(s) to be
written must be outside the protected area, as defined
by BP0 and BP1 bits from the status register.
Write Enable and Write Disable
The internal Write Enable Latch and the corresponding
Status Register WEL bit are set by sending the WREN
instruction to the CAT25010/20/40. Care must be taken
to take the CS
input high after the WREN instruction,
as otherwise the Write Enable Latch will not be
properly set. WREN timing is illustrated in Figure 2.
The WREN instruction must be sent prior any WRITE
or WRSR instruction.
The internal write enable latch is reset by sending the
WRDI instruction as shown in Figure 3. Disabling write
operations by resetting the WEL bit, will protect the
device against inadvertent writes.
Figure 2. WREN Timing
Note: Dashed Line = mode (1, 1) - - - - - -
Figure 3. WRDI Timing
Note: Dashed Line = mode (1, 1) - - - - - -
SCK
SI
CS
SO
000
0
11
0
HIGH IMPEDANCE
SCK
SI
CS
SO
0
000
10
0
HIGH IMPEDANCE
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CAT25040VI-TE13 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述:
CAT25040VP2I-GT3 功能描述:電可擦除可編程只讀存儲(chǔ)器 4K-Bit SPI Serial RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
CAT25040Y 功能描述:電可擦除可編程只讀存儲(chǔ)器 (512x8) 4K 2.5-6.0 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
CAT25040Y-1.8 功能描述:電可擦除可編程只讀存儲(chǔ)器 (512x8) 4K 1.8-6.0 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
CAT25040YA 功能描述:電可擦除可編程只讀存儲(chǔ)器 (512x8) 4K 2.5-6.0 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
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