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参数资料
| 型号： | DS1374U-3+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/18页 |
| 文件大小： | 0K |
| 描述： | IC RTC I2C W/CHARGER 10-USOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 3,000 |
| 类型： | 二进制计数器 |
| 特点： | 警报器，方波输出，涓流充电器，监视计时器 |
| 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 ~ 3.7 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 带卷 (TR) |
DS1374
I2C, 32-Bit Binary Counter Watchdog RTC with
Trickle Charger and Reset Input/Output
8
_____________________________________________________________________
Pin Description
PIN
μSOP
SO
NAME
FUNCTION
1, 2
—
X1, X2
Connections for a Standard 32.768kHz Quartz Crystal. The internal oscillator circuitry is designed
for operation with a crystal having a specified load capacitance (CL) of 6pF. Pin X1 is the input to the
oscillator and can optionally be connected to an external 32.768kHz oscillator. The output of the
internal oscillator, pin X2, is left unconnected if an external oscillator is connected to pin X1.
3
13
VBACKUP
Connection for a Secondary Power Supply. This supply is used to operate the oscillator and
counters when VCC is absent. Supply voltage must be held between 1.3V and 3.7V (-18 and -3) or
1.3V and 5.5V (-33) for proper operation. This pin can be connected to a primary cell such as a
lithium cell. Additionally, this pin can be connected to a rechargeable cell or a super cap when
used with the trickle-charge feature. UL recognized to ensure against reverse charging when used
with a lithium battery. This pin must be grounded if not used.
4
14
RST
Active-Low, Open-Drain Output with a Debounced Pushbutton Input. This pin can be activated by a
pushbutton reset request, a watchdog alarm condition, or a power-fail event. It has an internal 50k
pullup resistor. No external resistors should be connected. If the crystal oscillator is disabled, the
startup time of the oscillator is added to the tRST delay.
5
15
GND
Ground
6
16
SDA
Serial Data Input/Output. SDA is the input/output for the 2-wire serial interface. The SDA pin is open
drain and requires an external pullup resistor.
7
1
SCL
Serial Clock Input. SCL is the clock input for the 2-wire serial interface and is used to synchronize
data movement on the serial interface.
8
2
INT
Interupt. This pin is used to output the alarm interrupt or the watchdog reset signal. It is active-low
open drain and requires an external pullup resistor.
9
3
SQW
Square-Wave Output. This pin is used to output the programmable square-wave signal. It is open
drain and requires an external pullup resistor.
10
4
VCC
DC Power for Primary Power Supply
—
5–12
N.C.
No Connection. Must be connected to ground.
CLOCK
DIVIDER
32-BIT
COUNTER
MUX
4.096kHz
1Hz
X1
X2
8.192kHz
32.768kHz
1Hz/4.096kHz
ALARM/
WATCHDOG
STAT/CTRL/
TRICKLE
24-BIT
COUNTER
INT
CONTROL
RST
CONTROL
2-WIRE
INTERFACE
POWER
CONTROL
AND
TRICKLE
CHARGE
VCC
VBACKUP
GND
SDA
SCL
RST
SQW
INT
DS1374
Figure 4. Functional Diagram
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相关代理商/技术参数 |
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| DS1375 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:2-Wire Digital Input RTC with Alarm |
| DS1375T | 功能描述:实时时钟 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 |
| DS1375T/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS1375T/T&R | 功能描述:实时时钟 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 |
| DS1375T+ | 功能描述:实时时钟 I2C Digital Input w/Alarm 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 |
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