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參數(shù)資料
| 型號： | R1EX25004ATA00A |
| 元件分類： | PROM |
| 英文描述： | 512 X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| 封裝： | 4.40 X 3 MM, 0.65 MM PITCH, LEAD FREE, PLASTIC, TSSOP-8 |
| 文件頁數(shù)： | 7/22頁 |
| 文件大?。?/td> | 622K |
| 代理商： | R1EX25004ATA00A |
R1EX25002Axx00A/R1EX25004Axx00A
REJ03C0357-0002 Rev. 0.02 Jan.14 .2009
page 15 of 20
Write to Memory Array (WRITE):
As shown in the following figure, to send this instruction to the device, chip select (
S) is first driven low. The bits of
the instruction byte, address byte, and at least one data byte are then shifted in, on serial data input (D).
The instruction is terminated by driving chip select (
S) high at a byte boundary of the input data. In the case of the
following figure, this occurs after the eighth bit of the data byte has been latched in, indicating that the instruction is
being used to write a single byte. The self-timed Write cycle starts, and continues for a period tWC (as specified in AC
Characteristics). At the end of the cycle, the Write In Progress (WIP) bit is reset to 0.
If, though, chip select (
S) continues to be driven low, as shown in the following figure, the next byte of the input data is
shifted in, so that more than a single byte, starting from the given address towards the end of the same page, can be
written in a single internal Write cycle.
Each time a new data byte is shifted in, the least significant bits of the internal address counter are incremented. If the
number of data bytes sent to the device exceeds the page boundary, the internal address counter rolls over to the
beginning of the page, and the previous data there are overwritten with the incoming data. (The page size of these
device is 32 bytes).
The instruction is not accepted, and is not executed, under the following conditions:
If the Write Enable Latch (WEL) bit has not been set to 1 (by executing a Write Enable instruction just before)
If a Write cycle is already in progress
If the addressed page is in the region protected by the Block Protect (BP1 and BP0) bits.
If Write Protect (W) is low
Byte Write (WRITE) Sequence (1 Byte)
S
W
C
D
Q
8-Bit Address
Data Byte 1
01
2
3
4
5
6
7
0
1
2
3
A5
A6
A7
8
9
10
12
13 14 15 16 17 18 19 20 21 22
23
High-Z
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
4
5
6
7
A0
A1
A2
A3
Instruction
A8
Note:
1. Depending on the memory size, as shown in Address Range Bits table, the most significant address bit is
don’t care.
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| R1EX25004ATA00A#S0 | 功能描述:IC EEPROM 4K 5MHZ 8TSSOP RoHS:是 類別:集成電路 (IC) >> 存儲器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 格式 - 存儲器:閃存 存儲器類型:閃存 - NAND 存儲容量:4G（256M x 16） 速度:- 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:48-TFSOP（0.724"，18.40mm 寬） 供應(yīng)商設(shè)備封裝:48-TSOP I 包裝:Digi-Reel® 其它名稱:557-1461-6 |
| R1EX25004ATA00G | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Serial Peripheral Interface 2k EEPROM 4k EEPROM |
| R1EX25004ATA00I | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Serial Peripheral Interface Electrically Erasable and Programmable Read Only Memory |
| R1EX25004ATA00I#S0 | 制造商:Renesas Electronics Corporation 功能描述:SERIAL EEPROM 4K, SPI, TSSOP8, 制造商:Renesas Electronics Corporation 功能描述:SERIAL EEPROM 4K, SPI, TSSOP8, I-GRADE - Tape and Reel 制造商:Renesas Electronics Corporation 功能描述:IC EEPROM 4KBIT 5MHZ 8TSSOP |
| R1EX25008ASA00A#S0 | 功能描述:IC EEPROM 8K 5MHZ 8SOP RoHS:是 類別:集成電路 (IC) >> 存儲器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 格式 - 存儲器:閃存 存儲器類型:閃存 - NAND 存儲容量:4G（256M x 16） 速度:- 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:48-TFSOP（0.724"，18.40mm 寬） 供應(yīng)商設(shè)備封裝:48-TSOP I 包裝:Digi-Reel® 其它名稱:557-1461-6 |
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