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參數(shù)資料
| 型號： | CAT25040LI-GTD |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | PROM |
| 英文描述： | 128 X 8 SPI BUS SERIAL EEPROM, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, HALOGEN FREE AND ROHS COMPLIANT, MS-001, CASE 646AA-01, DIP-8 |
| 文件頁數(shù)： | 15/16頁 |
| 文件大?。?/td> | 211K |
| 代理商： | CAT25040LI-GTD |
CAT25010, CAT25020, CAT25040
http://onsemi.com
8
READ OPERATIONS
Read from Memory Array
To read from memory, the host sends a READ instruction
followed by a 8bit address (for the CAT25040, bit 3 of the
read instruction opcode contains A8 address bit).
After receiving the last address bit, the CAT25010/20/40
will respond by shifting out data on the SO pin (as shown in
Figure 9). Sequentially stored data can be read out by simply
continuing to run the clock. The internal address pointer is
automatically incremented to the next higher address as data
is shifted out. After reaching the highest memory address,
the address counter “rolls over” to the lowest memory
address, and the read cycle can be continued indefinitely.
The read operation is terminated by taking CS high.
Read Status Register
To read the status register, the host simply sends a RDSR
command. After receiving the last bit of the command, the
CAT25010/20/40 will shift out the contents of the status
register on the SO pin (Figure 10). The status register may
be read at any time, including during an internal write cycle.
While the internal write cycle is in progress, the RDSR
command will output the RDY (Ready) bit status only (i.e.,
data out = FFh).
Figure 9. READ Timing
SCK
SI
SO
BYTE ADDRESS
012
3456
78
9
D7 D6 D5 D4 D3 D2 D1 D0
DATA OUT
MSB
HIGH IMPEDANCE
OPCODE
13
12
14 15 16 17 18 19 20 21 22
00
X*
0
1
Dashed Line = mode (1, 1)
* X = 0 for CAT25010, CAT25020. X = A8 for CAT25040
A0
A7
CS
Figure 10. RDSR Timing
01
2
3
4
5
6
7
8
10
911
12
13
14
SCK
SI
DATA OUT
MSB
HIGH IMPEDANCE
OPCODE
SO
7
6
5
4
3
2
1
0
00
0
1
0
1
Dashed Line = mode (1, 1)
CS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CAT25040RE-1.8TE13REV-C | 512 X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| CAT25010GVI-1.8REV-C | 128 X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| CAT25010GVI-TE13REV-C | 128 X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| CAT25010GYE-REV-B | 128 X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| CAT25010RE-1.8REV-B | 128 X 8 SPI BUS SERIAL EEPROM, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT25040P | 功能描述:電可擦除可編程只讀存儲器 (512x8) 4K 2.5-6.0 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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25040P-1.8 | 功能描述:電可擦除可編程只讀存儲器 (512x8) 4K 1.8-6.0 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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25040PA | 功能描述:電可擦除可編程只讀存儲器 (512x8) 4K 2.5-6.0 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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25040PI | 功能描述:電可擦除可編程只讀存儲器 (512x8) 4K 2.5-6.0 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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25040PI-1.8 | 功能描述:電可擦除可編程只讀存儲器 (512x8) 4K 1.8-6.0 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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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