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参数资料
| 型号： | R1EX25002ATA00A#S0 |
| 厂商： | Renesas Electronics America |
| 文件页数： | 19/24页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 2K 5MHZ 8TSSOP |
| 标准包装： | 1 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 2K (256 x 8) |
| 速度： | 3MHz，5MHz |
| 接口： | SPI 串行 |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 标准包装 |
| 其它名称： | R1EX25002ATA00A#S0DKR |
R1EX25002Axx00A/R1EX25004Axx00A
Data Protect
The Block Protect bits (BP1, BP0) define the area of memory that is protected against the execution of write cycle, as
summarized in the following table.
When Write Protect ( W ) is driven low, write to memory array (WRITE) and write status register (WRSR) are disabled,
and WEL bit is reset.
Write Protected Block Size
Status register bits
Array addresses protected
0
0
1
1
BP1
0
1
0
1
BP0
Protected blocks
None
Upper quarter
Upper half
Whole memory
R1EX25004A
None
180h ? 1FFh
100h ? 1FFh
000h ? 1FFh
R1EX25002A
None
C0h ? FFh
80h ? FFh
00h ? FFh
Hold Condition
The hold ( HOLD ) signal is used to pause any serial communications with the device without resetting the clocking
sequence.
During the hold condition, the serial data output (Q) is high impedance, and serial data input (D) and serial clock (C)
are don’t care.
To enter the hold condition, the device must be selected, with chip select ( S ) low.
Normally, the device is kept selected, for the whole duration of the hold condition. Deselecting the device while it is in
the hold condition, has the effect of resetting the state of the device, and this mechanism can be used if it is required to
reset any processes that had been in progress.
The hold condition starts when the hold ( HOLD ) signal is driven low at the same time as serial clock (C) already being
low (as shown in the following figure).
The hold condition ends when the hold ( HOLD ) signal is driven high at the same time as serial clock (C) already being
low.
The following figure also shows what happens if the rising and falling edges are not timed to coincide with serial clock
(C) being low.
Hold Condition Activation
HOLD status
C
HOLD
REJ03C0357-0002 Rev. 0.02 Jan.14 .2009
page 17 of 20
HOLD status
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相关代理商/技术参数 |
参数描述 |
|---|---|
| R1EX25002ATA00G | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:Serial Peripheral Interface 2k EEPROM 4k EEPROM |
| R1EX25002ATA00I | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:Serial Peripheral Interface Electrically Erasable and Programmable Read Only Memory |
| R1EX25002ATA00I#S0 | 制造商:Renesas Electronics Corporation 功能描述:SERIAL EEPROM 2K, SPI, TSSOP8, 制造商:Renesas Electronics Corporation 功能描述:SERIAL EEPROM 2K, SPI, TSSOP8, I-GRADE - Tape and Reel 制造商:Renesas Electronics Corporation 功能描述:IC EEPROM 2KBIT 5MHZ 8TSSOP |
| R1EX25004ASA00A | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:Serial Peripheral Interface Electrically Erasable and Programmable Read Only Memory |
| R1EX25004ASA00A#S0 | 功能描述:IC EEPROM 4K 5MHZ 8SOP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1 系列:- 格式 - 存储器:闪存 存储器类型:闪存 - NAND 存储容量:4G（256M x 16） 速度:- 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP I 包装:Digi-Reel® 其它名称:557-1461-6 |
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