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參數(shù)資料
| 型號： | CAT25128YI-GT2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | PROM |
| 英文描述： | 16K X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| 封裝： | 4.40 X 3 MM, HALOGEN FREE AND ROHS COMPLIANT, MO-153, TSSOP-8 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 172K |
| 代理商： | CAT25128YI-GT2 |
CAT25128
http://onsemi.com
5
Status Register
The Status Register, as shown in Table 8, contains a
number of status and control bits.
The RDY (Ready) bit indicates whether the device is busy
with a write operation. This bit is automatically set to 1 during
an internal write cycle, and reset to 0 when the device is ready
to accept commands. For the host, this bit is read only.
The WEL (Write Enable Latch) bit is set/reset by the
WREN/WRDI commands. When set to 1, the device is in a
Write Enable state and when set to 0, the device is in a Write
Disable state.
The BP0 and BP1 (Block Protect) bits determine which
blocks are currently write protected. They are set by the user
with the WRSR command and are nonvolatile. The user is
allowed to protect a quarter, one half or the entire memory,
by setting these bits according to Table 9. The protected
blocks then become readonly.
The WPEN (Write Protect Enable) bit acts as an enable for
the WP pin. Hardware write protection is enabled when the
WP pin is low and the WPEN bit is 1. This condition
prevents writing to the status register and to the block
protected sections of memory. While hardware write
protection is active, only the nonblock protected memory
can be written. Hardware write protection is disabled when
the WP pin is high or the WPEN bit is 0. The WPEN bit, WP
pin and WEL bit combine to either permit or inhibit Write
operations, as detailed in Table 10.
Table 8. STATUS REGISTER
7
6
5
4
3
2
1
0
WPEN
0
BP1
BP0
WEL
RDY
Table 9. BLOCK PROTECTION BITS
Status Register Bits
Array Address Protected
Protection
BP1
BP0
0
None
No Protection
0
1
30003FFF
Quarter Array Protection
1
0
20003FFF
Half Array Protection
1
00003FFF
Full Array Protection
Table 10. WRITE PROTECT CONDITIONS
WPEN
WP
WEL
Protected Blocks
Unprotected Blocks
Status Register
0
X
0
Protected
0
X
1
Protected
Writable
1
Low
0
Protected
1
Low
1
Protected
Writable
Protected
X
High
0
Protected
X
High
1
Protected
Writable
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參數(shù)描述 |
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| CAT25128YI-GT3 | 功能描述:電可擦除可編程只讀存儲器 128K SPI Serial CMOS 電可擦除可編程只讀存儲器 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 |
| CAT25-130JA | 功能描述:電阻器網(wǎng)絡(luò)與陣列 13ohm 5% Concave 8resistors RoHS:否 制造商:Vishay/Thin Film 產(chǎn)品類型:Networks 電路類型:Divider 電阻器數(shù)量: 電阻數(shù)值:10 kOhms 容差:0.1 % 溫度系數(shù): 管腳數(shù)量:3 工作溫度范圍:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引線間隔: 端接類型:SMD/SMT 封裝:Reel |
| CAT25-130JALF | 功能描述:電阻器網(wǎng)絡(luò)與陣列 13ohm 5% Concave 8resistors RoHS:否 制造商:Vishay/Thin Film 產(chǎn)品類型:Networks 電路類型:Divider 電阻器數(shù)量: 電阻數(shù)值:10 kOhms 容差:0.1 % 溫度系數(shù): 管腳數(shù)量:3 工作溫度范圍:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引線間隔: 端接類型:SMD/SMT 封裝:Reel |
| CAT25-131JA | 功能描述:電阻器網(wǎng)絡(luò)與陣列 130ohm 5% Concave 8resistors RoHS:否 制造商:Vishay/Thin Film 產(chǎn)品類型:Networks 電路類型:Divider 電阻器數(shù)量: 電阻數(shù)值:10 kOhms 容差:0.1 % 溫度系數(shù): 管腳數(shù)量:3 工作溫度范圍:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引線間隔: 端接類型:SMD/SMT 封裝:Reel |
| CAT25-131JALF | 功能描述:電阻器網(wǎng)絡(luò)與陣列 130ohm 5% Concave 8resistors RoHS:否 制造商:Vishay/Thin Film 產(chǎn)品類型:Networks 電路類型:Divider 電阻器數(shù)量: 電阻數(shù)值:10 kOhms 容差:0.1 % 溫度系數(shù): 管腳數(shù)量:3 工作溫度范圍:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引線間隔: 端接類型:SMD/SMT 封裝:Reel |
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