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1338AC-31SRGI

Description
IC RTC CLK/CALENDAR I2C 16SOIC
Categorysemiconductor    Analog mixed-signal IC   
File Size243KB,23 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Environmental Compliance
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1338AC-31SRGI Overview

IC RTC CLK/CALENDAR I2C 16SOIC

1338AC-31SRGI Parametric

Parameter NameAttribute value
typeclock/calendar
characteristicLeap year, NVSRAM, square wave output
storage56B
Time formatHH:MM:SS (12/24 hours)
date formatYY-MM-DD-dd
interfaceI²C, 2-wire serial port
Voltage - Power3.3 V ~ 5.5 V
Voltage - power supply, battery1.3 V ~ 3.7 V
Current - Timing (maximum)5µA @ 3.63V ~ 5.5V
Operating temperature-40°C ~ 85°C
Installation typesurface mount
Package/casing16-SOIC (0.295", 7.50mm wide)
Supplier device packaging16-SOIC
DATASHEET
REAL-TIME CLOCK WITH BATTERY BACKED NON-VOLATILE RAM
General Description
The IDT1338 is a serial real-time clock (RTC) device that
consumes ultra-low power and provides a full binary-coded
decimal (BCD) clock/calendar with 56 bytes of battery
backed Non-Volatile Static RAM. The clock/calendar
provides seconds, minutes, hours, day, date, month, and
year information. The clock operates in either the 24-hour
or 12-hour format with AM/PM indicator. The end of the
month date is automatically adjusted for months with fewer
than 31 days, including corrections for leap year. Access to
the clock/calendar registers is provided by an I
2
C interface
capable of operating in fast I
2
C mode. Built-in Power-sense
circuitry detects power failures and automatically switches
to the backup supply, maintaining time and date operation.
IDT1338
Features
Real-Time Clock (RTC) counts seconds, minutes, hours,
day, date, month, and year with leap-year compensation
valid up to 2100
56-Byte battery-backed Non Volatile RAM for data
storage
Fast mode I
2
C Serial interface
Automatic power-fail detect and switch circuitry
Programmable square-wave output
Packaged in 8-pin MSOP, 8-pin SOIC, or 16-pin SOIC
(surface-mount package with an integrated crystal)
Industrial temperature range (-40°C to +85°C)
Applications
Telecom (Routers, Switches, Servers)
Handheld (GPS, Point of Sale POS terminals)
Consumer Electronics (Set-Top Box, Digital Recording,
Network Applications, Digital photo frames)
Office (Fax/Printers, Copiers)
Medical (Glucometer, Medicine Dispensers)
Others (Thermostats, Vending Machines, Modems, Utility
Meters)
Block Diagram
Crystal inside package
for 16-pin SOIC ONLY
1 Hz/4.096 kHz/
8.192 kHz/32.768 kHz
X1
32.768 kHz
Oscillator and
Divider
MUX/
Buffer
SQW/OUT
X2
VCC
GND
V
BAT
Power
Control
Control
Logic
Clock, Calendar
Counter
SCL
SDA
I
2
C
Interface
56 Byte
RAM
1 Byte
Control
7 Bytes
Buffer
IDT®
REAL-TIME CLOCK WITH BATTERY BACKED NON-VOLATILE RAM
1
IDT1338
REV S 111214

1338AC-31SRGI Related Products

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Description IC RTC CLK/CALENDAR I2C 16SOIC Real Time Clock RTC w/Battery Backed Non-Volatile RAM Real Time Clock Real Time Clock with Embedded Crystal Real Time Clock 1RTC BASE Real Time Clock 1RTC BASE Real Time Clock 1RTC BASE Real Time Clock RTC w/Battery Backed Non-Volatile RAM
Packaging - Reel Reel Reel Tube Reel Reel
Product Category - Real Time Clock Real Time Clock Real Time Clock Real Time Clock Real Time Clock Real Time Clock
Manufacturer - IDT (Integrated Device Technology, Inc.) IDT (Integrated Device Technology, Inc.) IDT (Integrated Device Technology, Inc.) IDT (Integrated Device Technology, Inc.) IDT (Integrated Device Technology, Inc.) IDT (Integrated Device Technology, Inc.)
RoHS - Details Details Detailsbfxqdqsvye Details Details Details
Package / Case - SOIC-16 SOIC-16 SOIC-8 SOIC-8 TSSOP-8 SOIC-16
Battery Backup Switching - Backup Switching Backup Switching Backup Switching Backup Switching Backup Switching Backup Switching
Height - 2.34 mm 2.34 mm 1.5 mm 1.5 mm 0.97 mm 2.34 mm
Length - 10.4 mm 10.4 mm 4.9 mm 4.9 mm 3 mm 10.4 mm
Moisture Sensitive - Yes Yes - - Yes Yes
Factory Pack Quantity - 1000 1000 2500 97 2500 1000
Width - 7.6 mm 7.6 mm 3.9 mm 3.9 mm 3 mm 7.6 mm
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