您的位置：维库电子市场网 > Datasheet > DS1621
DS1621数据手册封面

DS1621 Datasheet

  • DS1621

  • Digital Thermometer and Thermostat

  • 647.51KB

  • Dallas

纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

DS1621
The master device generates all of the serial clock pulses and the START and STOP conditions. A
transfer is ended with a STOP condition or with a repeated START condition. Since a repeated START
condition is also the beginning of the next serial transfer, the bus will not be released.
The DS1621 may operate in the following two modes:
1.
Slave receiver mode:
Serial data and clock are received through SDA and SCL. After each byte is
received an acknowledge bit is transmitted. START and STOP conditions are recognized as the
beginning and end of a serial transfer. Address recognition is performed by hardware after reception
of the slave address and direction bit.
2.
Slave transmitter mode:
The first byte is received and handled as in the slave receiver mode.
However, in this mode the direction bit will indicate that the transfer direction is reversed. Serial data
is transmitted on SDA by the DS1621 while the serial clock is input on SCL. START and STOP
conditions are recognized as the beginning and end of a serial transfer.
SLAVE ADDRESS
A control byte is the first byte received following the START condition from the master device. The
control byte consists of a 4-bit control code; for the DS1621, this is set as 1001 binary for read and write
operations. The next 3 bits of the control byte are the device select bits (A2, A1, A0). They are used by
the master device to select which of eight devices are to be accessed. These bits are in effect the 3 least
significant bits of the slave address. The last bit of the control byte (R/
W
) defines the operation to be
performed. When set to a 鈥?鈥?a read operation is selected, when set to a 鈥?鈥?a write operation is selected.
Following the START condition the DS1621 monitors the SDA bus checking the device type identifier
being transmitted. Upon receiving the 1001 code and appropriate device select bits, the slave device
outputs an acknowledge signal on the SDA line.
8 of 16
102299

DS1621 产品属性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 50

  • 集成电路 (IC)

  • PMIC - 热管理

  • -

  • 温度计，恒温计

  • 内部

  • -55°C ~ 125°C

  • ±2°C（最小值）

  • ADC（三角积分型），比较器，寄存器库

  • I²C?/SMBus?

  • 是

  • 无

  • 2.7 V ~ 5.5 V

  • -55°C ~ 125°C

  • 通孔

  • 8-DIP（0.300"，7.62mm）

  • 8-DIP

  • 管件

DS1621相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2024 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：

0571-85317607

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！