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参数资料
| 型号： | PT7C4307PE |
| 厂商： | PERICOM SEMICONDUCTOR CORP |
| 元件分类： | XO, clock |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDIP8 |
| 封装： | LEAD FREE, MS-001BA, DIP-8 |
| 文件页数： | 4/20页 |
| 文件大小： | 517K |
| 代理商： | PT7C4307PE |
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PT0206(02/05)
Ver: 0
12
Preliminary Data Sheet
PT7C4307
Real-time Clock Module (I
2C Bus)
b)
Data acknowledge response (ACK signal)
When transferring data, the receiver generates a confirmation response (ACK signal, low active) each time an 8-bit data segment
is received. If there is no ACK signal from the receiver, it indicates that normal communication has not been established. (This
does not include instances where the master device intentionally does not generate an ACK signal.)
Immediately after the falling edge of the clock pulse corresponding to the 8th bit of data on the SCL line, the transmitter releases
the SDA line and the receiver sets the SDA line to low (= acknowledge) level.
After transmitting the ACK signal, if the Master remains the receiver for transfer of the next byte, the SDA is released at the
falling edge of the clock corresponding to the 9th bit of data on the SCL line. Data transfer resumes when the Master becomes the
transmitter.
When the Master is the receiver, if the Master does not send an ACK signal in response to the last byte sent from the slave, that
indicates to the transmitter that data transfer has ended. At that point, the transmitter continues to release the SDA and awaits a
STOP condition from the Master.
SCL from Master
1
2
89
SDA from transmitter
(sending side)
SDA from receiver
(receiving side)
Release SDA
Low active
ACK signal
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PT7C4307W | 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:Real-time Clock Module (I2C Bus) |
| PT7C4307WEX | 功能描述:IC RTC ALARM NVSRAM 8SOIC RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 标准包装:2,500 系列:- 类型:时钟/日历 特点:警报器，闰年，监控器，监视计时器 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:I²C，2 线串口 电源电压:2.7 V ~ 5.5 V 电压 - 电源，电池:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| PT7C4311WEX | 功能描述:IC RTC LEAP YEAR Y2K 8SOIC RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 标准包装:2,500 系列:- 类型:时钟/日历 特点:警报器，闰年，监控器，监视计时器 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:I²C，2 线串口 电源电压:2.7 V ~ 5.5 V 电压 - 电源，电池:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| PT7C4337 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-time Clock Module (I2C Bus) |
| PT7C4337PE | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-time Clock Module (I2C Bus) |
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