參數(shù)資料
型號(hào)： DS1678S/T&R
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/25頁(yè)
文件大?。?/td> 0K
描述： IC RECORDER REALTIME EVENT 8SOIC
標(biāo)準(zhǔn)包裝： 2,000
類型： 時(shí)間事件記錄器
特點(diǎn)： 警報(bào)器，閏年，NVSRAM，Y2K
存儲(chǔ)容量： 32B
時(shí)間格式： HH:MM:SS（12/24 小時(shí)）
數(shù)據(jù)格式： YY-MM-DD-dd
接口： I²C，2 線串口
電源電壓： 4.5 V ~ 5.5 V
電壓 - 電源，電池： 2.6 V ~ 3.5 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 8-SO
包裝： 帶卷 (TR)
1 of 25
REV: 100405
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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