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DS1678S Datasheet

  • DS1678S

  • 實(shí)時(shí)事件記錄器

  • 25頁

  • MAXIM   MAXIM

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DS1678
Real-Time Event Recorder
www.maxim-ic.com
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 V
CC
or V
BAT
.
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
TYPICAL OPERATING CIRCUIT
I
2
C*
Serial Interface
Three Resolution Options for Trade-Off
Accuracy vs. Maximum Time Between Events
-40擄C to +85擄C Industrial Temperature
Range
Underwriters Laboratory (UL) Recognized
ORDERING INFORMATION
PART
鈥?/div>
DS1678
DS1678+
DS1678S
DS1678S+
PIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 SO
8 SO
8 SO (Tape and
DS1678S/T&R
Reel)
8 SO (Tape and
DS1678S+T&R
Reel)
鈥?/div>
PIN CONFIGURATION
TOP VIEW
1
2
3
4
8
7
6
5
TOP MARK
鈥犫€?/div>
DS1678
DS1678
DS1678S
DS1678S
DS1678S
DS1678S
X1
X2
V
BAT
GND
DS1678
V
CC
INT
SCL
SDA
All devices are specified over the -40擄C to +85擄C operating
range.
鈥犫€?/div>
A 鈥溾€?鈥?anywhere on the top mark denotes a lead-free device.
+
Denotes a lead-free/RoHS-compliant device.
I C is a trademark of Philips Corp. Purchase of I C components
from Maxim Integrated Products, Inc., or one of its sublicensed
2
Associated Companies, conveys a license under the Philips I C
2
Patent Rights to use these components in an I C system, provided
2
that the system conforms to the I C Standard Specification as
defined by Philips.
*
2
2
PDIP (300 mils)
SO (208 mils)
1 of 25
REV: 100405

DS1678S 產(chǎn)品屬性

  • 88

  • 集成電路 (IC)

  • 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘

  • -

  • 時(shí)間事件記錄器

  • 警報(bào)器，閏年，NVSRAM，Y2K

  • 32B

  • HH:MM:SS（12/24 小時(shí)）

  • YY-MM-DD-dd

  • I²C，2 線串口

  • 4.5 V ~ 5.5 V

  • 2.6 V ~ 3.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-SOIC（0.209"，5.30mm 寬）

  • 8-SO

  • 管件

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