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FM3130-DG データシート(PDF) 1 Page - Ramtron International Corporation

部品番号 FM3130-DG
部品情報  Integrated RTC/Alarm and 64Kb F-RAM
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メーカー  RAMTRON [Ramtron International Corporation]
ホームページ  http://www.ramtron.com
Logo RAMTRON - Ramtron International Corporation

FM3130-DG データシート(HTML) 1 Page - Ramtron International Corporation

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This product conforms to specifications per the terms of the Ramtron
Ramtron International Corporation
standard warranty. The product has completed Ramtron‟s internal
1850 Ramtron Drive, Colorado Springs, CO 80921
qualification testing and has reached production status.
(800) 545-FRAM, (719) 481-7000
http://www.ramtron.com
Rev. 3.2
Sept. 2011
Page 1 of 22
FM3130
Integrated RTC/Alarm and 64Kb F-RAM
Features
High Integration Device Replaces Multiple Parts
Serial Nonvolatile Memory
Real-time Clock (RTC) with Alarm
Clock Output (Programmable frequency)
64Kb Ferroelectric Nonvolatile RAM
Internally Organized as 8Kx8
Unlimited Read/Write Endurance
45 year Data Retention
NoDelay™ Writes
Fast Two-wire Serial Interface
Up to 1 MHz Maximum Bus Frequency
Supports Legacy Timing for 100 kHz & 400 kHz
RTC & F-RAM Controlled via 2-wire Interface
Real-time Clock/Calendar
Backup Current under 1 A
Seconds through Centuries in BCD format
Tracks Leap Years through 2099
Uses Standard 32.768 kHz Crystal (12.5pF)
Software Calibration
Supports Battery or Capacitor Backup
Easy to Use Configurations
Operates from 2.7 to 3.6V
8-pin “Green” SOIC (-G) and TDFN (-DG)
Low Operating Current
Industrial Temperature -40C to +85C
Underwriters Laboratory (UL) Recognized
Description
The FM3130 integrates a real-time clock (RTC) and
F-RAM nonvolatile memory. The device operates
from 2.7 to 3.6V.
The FM3130 provides nonvolatile F-RAM which
features fast write speed and unlimited endurance.
This allows the memory to serve as extra RAM for
the
system
microcontroller
or
conventional
nonvolatile storage. This memory is truly nonvolatile
rather than battery backed.
The real-time clock (RTC) provides time and date
information in BCD format. It can be permanently
powered from external backup voltage source, either
a battery or a capacitor. The timekeeper uses a
common external 32.768 kHz crystal and provides a
calibration mode that allows software adjustment of
timekeeping accuracy.
Pin Configuration
Pin Name
Function
X1, X2
Crystal Connections
ACS
Alarm/Calibration/SqWave
SDA
Serial Data
SCL
Serial Clock
VBAK
Battery-Backup Supply
VDD
Supply Voltage
VSS
Ground
Ordering Information
FM3130-G
“Green”/RoHS 8-pin SOIC
FM3130-GTR
“Green”/RoHS 8-pin SOIC,
Tape & Reel
FM3130-DG
“Green”/RoHS 8-pin TDFN
FM3130-DGTR
“Green”/RoHS 8-pin TDFN,
Tape & Reel
VSS
X1
VBAK
X2
1
2
3
4
5
6
7
8
VDD
SCL
SDA
ACS
X1
X2
VBAK
VSS
VDD
ACS
SCL
SDA
Top View
1
2
3
4
8
7
6
5


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