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参数资料
| 型号： | M34D64-WDW6T |
| 厂商： | 意法半导体 |
| 元件分类： | DRAM |
| 英文描述： | 64 Kbit Serial I2C Bus EEPROM With Hardware Write Control on Top Quarter of Memory |
| 中文描述： | 64千位串行I2C总线的EEPROM，带有硬件写控制记忆的热门季 |
| 文件页数： | 7/21页 |
| 文件大小： | 147K |
| 代理商： | M34D64-WDW6T |
7/21
M34D64
data starts to become overwritten in an implemen-
tation dependent way.
The bus master sends from 1 to 32 bytes of data.
If Write Control (WC) is High, the contents of the
addressed top quarter of the memory location are
not modified. After each byte is transferred, the in-
ternal byte address counter (the 5 least significant
address bits only) is incremented. The transfer is
terminated by the bus master generating a Stop
condition.
Figure 8. Write Cycle Polling Flowchart using ACK
Minimizing System Delays by Polling On ACK
During the internal Write cycle, the device
disconnects itself from the bus, and writes a copy
of the data from its internal latches to the memory
cells. The maximum Write time (t
w
) is shown in
Tables 13 and 14, but the typical time is shorter.
To make use of this, a polling sequence can be
used by the bus master.
The sequence, as shown in Figure 8, is:
– Initial condition: a Write cycle is in progress.
– Step 1: the bus master issues a Start condition
followed by a Device Select Code (the first byte
of the new instruction).
– Step 2: if the device is busy with the internal
Write cycle, no Ack will be returned and the bus
master goes back to Step 1. If the device has
terminated the internal Write cycle, it responds
with an Ack, indicating that the device is ready
to receive the second part of the instruction (the
first byte of this instruction having been sent
during Step 1).
WRITE Cycle
in Progress
AI01847C
Next
Operation is
Addressing the
Memory
START Condition
DEVICE SELECT
with RW = 0
ACK
Returned
YES
NO
YES
NO
ReSTART
STOP
DATA for the
WRITE Operation
DEVICE SELECT
with RW = 1
Send Address
and Receive ACK
First byte of instruction
with RW = 0 already
decoded by the device
YES
NO
START
Condition
Continue the
WRITE Operation
Continue the
Random READ Operation
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相关代理商/技术参数 |
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|---|---|
| M34D64-WMN6 | 功能描述:电可擦除可编程只读存储器 5.5V 64K (8192x8) RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| M34D64WMN6P | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit serial IC bus EEPROM with hardware write control on top quarter of memory |
| M34D64-WMN6P | 功能描述:电可擦除可编程只读存储器 64Kbit Serial EE RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| M34D64-WMN6T | 功能描述:电可擦除可编程只读存储器 5.5V 64K (8192x8) RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| M34D64WMN6TP | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit serial IC bus EEPROM with hardware write control on top quarter of memory |
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