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參數(shù)資料
| 型號： | 24LC256-IT/MS |
| 元件分類： | PROM |
| 英文描述： | 32K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 7/42頁 |
| 文件大小： | 797K |
| 代理商： | 24LC256-IT/MS |
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2007 Microchip Technology Inc.
DS21930C-page 15
24AAXX/24LCXX/24FCXX
5.7.1
CONTIGUOUS ADDRESSING
ACROSS MULTIPLE DEVICES
Chip Select bits A2, A1 and A0 can be used to expand
the contiguous address space by adding up to eight
24XXs on the same bus. Software can use the three
address bits of the control byte as the three Most
Significant bits of the address byte. For example, in the
24XX32 devices, software can use A0 of the control
byte as address bit A12; A1 as address bit A13; and A2
as address bit A14 (Table 5-1). It is not possible to
sequentially read across device boundaries.
TABLE 5-1:
CONTROL BYTE ADDRESS BITS
Maximum
Devices
Maximum
Contiguous
Address Space
Chip Select Bit
A2
Chip Select Bit
A1
Chip Select Bit
A0
1K (24C01C)
8
8 Kb
A10
A9
A8
1K (24XX014)
8
8 Kb
A10
A9
A8
2K (24C02C)
8
16 Kb
A10
A9
A8
2K (24XX024/025)
8
16 Kb
A10
A9
A8
32K (24XX32)
8
256 Kb
A14
A13
A12
64K (24XX64)
8
512 Kb
A15
A14
A13
128K (24XX128)
8(1)
1 Mb
A16*
A15*
A14
256K (24XX256)
8(1)
2 Mb
A17*
A16*
A15
512K (24XX512)
8
4 Mb
A18
A17
A16
1024K (24XX1025)
4(2)
4 Mb
B0(3)
A17
A16
Note 1:
Up to two 24XX128 or 24XX256 devices in the MSOP package can be added for up to 256 kb or 512 kb of
address space, respectively. Bits A0 and A1 must be set to ‘0’.
2:
Using the block select bit ‘B0’, up to four 24XX1025 devices can be cascaded together.
3:
For proper operation of the 24XX1025 the A2 pin must be tied to a logic high. Software addressing uses
B0 to select between upper and lower 512 Kbit segments of memory.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 24LC256SC/S15K | 制造商:Microchip Technology Inc 功能描述:256K I2C SMARTCARD EE DIE IN WAFFLE PK - Gel-pak, waffle pack, wafer, diced wafer on film |
| 24LC256SC/W15K | 制造商:Microchip Technology Inc 功能描述:256K I2C SMARTCARD EE WAFER - Gel-pak, waffle pack, wafer, diced wafer on film |
| 24LC256SC/WF15K | 制造商:Microchip Technology Inc 功能描述:256K I2C SMARTCARD EE WFR ON FR - Gel-pak, waffle pack, wafer, diced wafer on film |
| 24LC256T-E/MF | 功能描述:電可擦除可編程只讀存儲器 256K 32K X 8 2.5V SER EE EXT RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 24LC256T-E/MNY | 功能描述:電可擦除可編程只讀存儲器 256K, 32Kx8, 2.5V SER EE, ExT RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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