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GENERAL DESCRIPTION
The DS1678 real-time clock (RTC) event recorder
records the time and date of a nonperiodic,
asynchronous event each time the
INT pin is
activated. The device records the seconds, minutes,
hours, date, day of the week, month, year, and
century when the first event occurs, and starts the 16-
bit elapsed time counter (ETC). Subsequent events
trigger the recording of the ETC into the event-log
memory. This allows for up to 1025 events to be
logged. Events can be logged while the device is
operating from either VCC or VBAT.
PIN CONFIGURATION
FEATURES
Real-Time Clock/Calendar in Binary-Coded
Decimal (BCD) Format Counts Seconds,
Minutes, Hours, Date, Month, Day of the
Week, and Year with Leap Year
Compensation and is Year 2000 Compliant
Logs Up to 1025 Consecutive Events in Read-
Only Battery-Backed Memory
User-Programmable Event Trigger can be
Triggered by the Falling Edge, Rising Edge,
or Rising and Falling Edges of the INT Pin
Event Counter Register Provides Data on the
Number of Events that Have Been Logged in
the Current Event-Logging Mission
Programmable RTC Alarm
32-Byte, Battery-Backed, General-Purpose
NV RAM
I2C Serial Interface
Three Resolution Options for Trade-Off
Accuracy vs. Maximum Time Between Events
-40C to +85C Industrial Temperature
Range
Underwriters Laboratory (UL) Recognized
ORDERING INFORMATION
PART
PIN-PACKAGE TOP MARK
DS1678
8 Plastic DIP
DS1678
DS1678+
8 Plastic DIP
DS1678
DS1678S
8 SO
DS1678S
DS1678S+
8 SO
DS1678S
DS1678S/T&R
8 SO (Tape and
Reel)
DS1678S
DS1678S+T&R
8 SO (Tape and
Reel)
DS1678S
All devices are specified over the -40°C to +85°C operating
range.
A “‘+” anywhere on the top mark denotes a lead(Pb)-free
device.
+
Denotes a lead(Pb)-free/RoHS-compliant device.
DS1678
Real-Time Event Recorder
www.maxim-ic.com
TOP VIEW
1
2
3
4
5
6
7
8
VBAT
VCC
GND
INT
SCL
SDA
X2
X1
DS1678
PDIP (300 mils)
SO (208 mils)
TYPICAL OPERATING CIRCUIT
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相关代理商/技术参数
DS1678S+ 功能描述:实时时钟 Real-Time Event Recorder 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
DS1678S+T&R 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 32BYTE 8SOIC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC REAL TIME EVENT REC 8-SOIC 制造商:Maxim Integrated Products 功能描述:Real Time Clock Real-Time Event Recorder
DS1678S+T&R 功能描述:实时时钟 Real-Time Event Recorder 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
DS1678SR 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Real-Time Event Recorder
DS1678ST 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Real-Time Event Recorder
DS1679 制造商:未知厂家 制造商全称:未知厂家 功能描述:
DS1679B 制造商:Maxim from Components Direct 功能描述:THE MAXIM DS1679B IS A LOW-SIDE MOSFET DRIVER. - Rail/Tube 制造商:Maxim 功能描述:The Maxim DS1679B is a Low-Side MOSFET Driver.
DS1679BS 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: