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| 型号： | MCP79410-I/SN |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | REAL TIME CLOCK, PDSO8 |
| 封装： | 3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8 |
| 文件页数： | 40/40页 |
| 文件大小： | 584K |
| 代理商： | MCP79410-I/SN |
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2010-2011 Microchip Technology Inc.
DS22266C-page 9
MCP7941X
3.1.3
ACKNOWLEDGE POLLING
Since the device will not acknowledge an EEPROM
command during an EEPROM write cycle, this can be
used to determine when the cycle is complete. This
feature can be used to maximize bus throughput. Once
the Stop condition for a write command has been
issued from the master, the device initiates the
internally timed write cycle. ACK polling can be initiated
immediately. This involves the master sending a Start
condition, followed by the control byte for a write
command (R/W = 0). If the device is still busy with the
write cycle, then no ACK will be returned. If no ACK is
returned, then the Start bit and control byte must be
resent. If the cycle is complete, then the device will
return the ACK, and the master can then proceed with
the next read or write command. See Figure 3-4 for the
flow diagram.
FIGURE 3-4:
ACKNOWLEDGE
POLLING FLOW
Send
EE Write Command
Send Stop
Condition to
Initiate EE Write Cycle
Send Start
Send Control Byte
with R/W = 0
Did Device
Acknowledge
(ACK = 0)?
Next
Operation
NO
YES
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相关代理商/技术参数 |
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| MCP79410T-I/MNY | 功能描述:实时时钟 I2C GP RTCC 1Kb EE 64B SRAM ID RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| MCP79410T-I/MS | 功能描述:实时时钟 I2C GP RTCC 1Kb EE 64B SRAM ID RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| MCP79410T-I/SN | 功能描述:实时时钟 I2C GP RTCC 1Kb EE 64B SRAM ID RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| MCP79410T-I/ST | 功能描述:实时时钟 I2C GP RTCC 1Kb EE 64B SRAM ID RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| MCP79411 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:I2C? Real-Time Clock/Calendar with EEPROM, SRAM, Unique ID and Battery Switchover |
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