- 您现在的位置：买卖IC网 > PDF目录300143 > X1203S8T1 0 TIMER(S), REAL TIME CLOCK, PDSO8 PDF资料下载
参数资料
| 型号： | X1203S8T1 |
| 元件分类： | XO, clock |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封装： | PLASTIC, SOIC-8 |
| 文件页数： | 18/19页 |
| 文件大小： | 155K |
| 代理商： | X1203S8T1 |
X1203
Characteristics subject to change without notice.
8 of 19
REV 1.2.0 2/13/01
www.xicor.com
Figure 5. Acknowledge Response From Receiver
SCL from Master
Data Output
from Transmitter
Data Output
from Receiver
8
1
9
Start
Acknowledge
Acknowledge
Acknowledge is a software convention used to indicate
successful data transfer. The transmitting device, either
master or slave, will release the bus after transmitting
eight bits. During the ninth clock cycle, the receiver will
pull the SDA line LOW to acknowledge that it received
the eight bits of data. Refer to Figure 5.
The device will respond with an acknowledge after rec-
ognition of a start condition and if the correct Device
Identier and Select bits are contained in the Slave
Address Byte. If a write operation is selected, the
device will respond with an acknowledge after the
receipt of each subsequent eight bit word. The device
will acknowledge all incoming data and address bytes,
except for:
– The slave address byte when the device identier
and/or select bits are incorrect
– All data bytes of a write when the WEL in the write
protect register is LOW
– The 2nd data byte of a register write operation (when
only 1 data byte is allowed)
In the read mode, the device will transmit eight bits of
data, release the SDA line, then monitor the line for an
acknowledge. If an acknowledge is detected and no
stop condition is generated by the master, the device
will continue to transmit data. The device will terminate
further data transmissions if an acknowledge is not
detected. The master must then issue a stop condition
to return the device to standby mode and place the
device into a known state.
WRITE OPERATIONS
Byte Write
For a byte write operation, the device requires the
slave address byte and the CCR address bytes. This
gives the master access to any one of the words in the
CCR. (Note: Prior to writing to the CCR, the master
must write a 02h, then 06h to the status register in two
preceding operations to enable the write operation.
See “Writing to the Clock/Control Registers” on page
6.) Upon receipt of each address byte, the X1203
responds with an acknowledge. After receiving both
address bytes the X1203 awaits the eight bits of data.
After receiving the 8 data bits, the X1203 again
responds with an acknowledge. The master then termi-
nates the transfer by generating a stop condition. The
X1203 then begins an internal write cycle of the data to
the nonvolatile memory. During the internal write cycle,
the device inputs are disabled, so the device will not
respond to any requests from the master. The SDA out-
put is at high impedance. See Figure 6.
Page Write
The X1203 has a page write operation. It is initiated in
the same manner as the byte write operation; but
instead of terminating the write cycle after the rst data
byte is transferred, the master can transmit up to 7
more bytes to the clock/control registers.
Note: Prior to writing to the CCR, the master must
write a 02h, then 06h to the status register in two pro-
ceeding operations to enable the write operation. See
“Writing to the Clock/Control Registers” on page 6.)
相关PDF资料 |
PDF描述 |
|---|---|
| X1228S14I-2.7 | 1 TIMER(S), REAL TIME CLOCK, PDSO14 |
| X25644S14-1.8T1 | SPECIALTY MICROPROCESSOR CIRCUIT, PDSO14 |
| X502 | MALE, MULTIWAY RACK AND PANEL CONN, SOLDER |
| X503 | MALE, MULTIWAY RACK AND PANEL CONN, SOLDER |
| X504 | MALE, MULTIWAY RACK AND PANEL CONN, SOLDER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| X1203V8 | 制造商:Intersil Corporation 功能描述: |
| X-120-499 | 制造商:Brady Corporation 功能描述:VIAL SIDE/TOP COMBO-B499 .50X1X.375DIA |
| X1205 | 制造商:XICOR 制造商全称:Xicor Inc. 功能描述:Real Time Clock/Calendar |
| X1205S8 | 功能描述:IC RTC/CALENDAR 2-WIRE 8-SOIC RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 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:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
| X1205S8I | 功能描述:IC RTC/CALENDAR 2-WIRE 8-SOIC RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 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:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
发布紧急采购，3分钟左右您将得到回复。