参数资料
型号: DS1672S-3
厂商: Maxim Integrated Products
文件页数: 3/15页
文件大小: 0K
描述: IC TIMEKEEPER 3V 32-BIT 8-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 100
类型: 二进制计数器
特点: 涓流充电器
时间格式: 二进制
数据格式: 二进制
接口: I²C,2 线串口
电源电压: 2.7 V ~ 3.3 V
电压 - 电源,电池: 1.3 V ~ 3.63 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
DS1672
11 of 15
Figure 5. Programmable Trickle Charger
I
2C Serial Data Bus
The DS1672 supports a bidirectional I
2C bus and data transmission protocol. A device that sends data
onto the bus is defined as a transmitter and a device receiving data as a receiver. The device that controls
the message is called a master. The devices that are controlled by the master are slaves. The bus must be
controlled by a master device that generates the serial clock (SCL), controls the bus access, and generates
the START and STOP conditions. The DS1672 operates as a slave on the I
2C bus. Connections to the bus
are made via the open-drain I/O lines SDA and SCL. Within the bus specifications, a standard mode
(100kHz maximum clock rate) and a fast mode (400kHz maximum clock rate) are defined. The DS1672
operates in both modes.
The following bus protocol has been defined (Figure 6):
Data transfer may be initiated only when the bus is not busy.
During data transfer, the data line must remain stable whenever the clock line is HIGH. Changes in
the data line while the clock line is high will be interpreted as control signals.
Accordingly, the following bus conditions have been defined:
Bus not busy: Both data and clock lines remain HIGH.
Start data transfer: A change in the state of the data line from high to low, while the clock line is
high, defines a START condition.
Stop data transfer: A change in the state of the data line from low to high, while the clock line is
high, defines a STOP condition.
1 OF 16 SELECT
NOTE: ONLY 1010 ENABLES
1 OF 2
SELECT
1 OF 3
SELECT
TCS
DS
RS
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
250
R1
R2
TRICKLE CHARGE REGISTER
TCS = TRICKLE CHARGER SELECT
DS = DIODE SELECT
RS = RESISTOR SELECT
VCC
VBACKUP
2k
R3
4k
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DS1672S-3/T&R 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 8SOIC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC TIMEKEEPER 3V 32-BIT 8-SOIC
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