DS1340Z-33/T&R; datasheet, PDF

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DS1340Z-33/T&R;: DescriptionIC RTC CLK/CALENDAR I2C 8-SOIC; Categorysemiconductor Analog mixed-signal IC; File Size234KB，14 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html

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DS1340Z-33/T&R; Overview

IC RTC CLK/CALENDAR I2C 8-SOIC

DS1340Z-33/T&R; Parametric

Parameter Name	Attribute value
type	clock/calendar
characteristic	Leap Year, Trickle Charger
storage	-
Time format	HH:MM:SS (24 hours)
date format	YY-MM-DD-dd
interface	I²C, 2-wire serial port
Voltage - Power	2.97 V ~ 5.5 V
Voltage - power supply, battery	1.3 V ~ 5.5 V
Current - Timing (maximum)	150µA @ 5.5V
Operating temperature	-40°C ~ 85°C
Installation type	surface mount
Package/casing	8-SOIC (0.154", 3.90mm wide)
Supplier device packaging	8-SOIC

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Rev 4; 3/06

C RTC with Trickle Charger

General Description

The DS1340 is a real-time clock (RTC)/calendar that is

pin compatible and functionally equivalent to the ST

M41T00, including the software clock calibration. The

device additionally provides trickle-charge capability

on the V

BACKUP

pin, a lower timekeeping voltage, and

an oscillator STOP flag. Block access of the register

map is identical to the ST device. Two additional regis-

ters, which are accessed individually, are required for

the trickle charger and flag. The clock/calendar pro-

vides seconds, minutes, hours, day, date, month, and

year information. A built-in power-sense circuit detects

power failures and automatically switches to the back-

up supply. Reads and writes are inhibited while the

clock continues to run. The device is programmed seri-

ally through an I

bidirectional bus.

Features

♦

Enhanced Second Source for the ST M41T00

♦

Available in a Surface-Mount Package with an

Integrated Crystal (DS1340C)

♦

Fast (400kHz) I

C Interface

♦

Software Clock Calibration

♦

RTC Counts Seconds, Minutes, Hours, Day, Date,

Month, and Year

♦

Automatic Power-Fail Detect and Switch Circuitry

♦

Trickle-Charge Capability

♦

Low Timekeeping Voltage Down to 1.3V

♦

Three Operating Voltage Ranges (1.8V, 3V, and 3.3V)

♦

Oscillator Stop Flag

♦

Available in 8-Pin

µSOP

or SO Packages

♦

Underwriters Laboratory (UL) Recognized

DS1340

Applications

Portable Instruments

Point-of-Sale Equipment

Medical Equipment

Telecommunications

PART

DS1340Z-18

DS1340Z-3

DS1340Z-33

DS1340U-18

DS1340U-3

DS1340U-33

CRYSTAL

6 SCL

CPU

FT/OUT

Ordering Information

TEMP RANGE PIN-PACKAGE

-40°C to +85°C 8 SO (0.150in)

-40°C to +85°C 8 µSOP

-40°C to +85°C 16 SO

-40°C to +85°C 8 SO (0.150in)

-40°C to +85°C 8 µSOP

-40°C to +85°C 16 SO

TOP

MARK

†

D1340-18

DS1340-3

D1340-33

1340A1-18

1340A1-3

1340A1-33

1340C-18

1340C-3

1340C-33

D1340-18

DS1340-3

D1340-33

1340A1-18

1340A1-3

1340A1-33

1340C-18

1340C-3

1340C-33

Typical Operating Circuit

DS1340C-18

DS1340C-3

DS1340C-33

DS1340Z-18+

DS1340Z-3+

DS1340Z-33+

DS1340U-3+

DS1340C-18#

DS1340C-3#

DS1340C-33#

DS1340U-18+ -40°C to +85°C 8 µSOP

DS1340

5 SDA

= t

/ C

GND

BACKUP

DS1340U-33+ -40°C to +85°C 8 µSOP

Denotes a lead-free/RoHS-compliant device.

*Purchase

of I

C components from Maxim Integrated Products,

Inc., or one of its sublicensed Associated Companies, conveys

a license under the Philips I

C Patent Rights to use these com-

ponents in an I

C system, provided that the system conforms to

the I

C Standard Specification as defined by Philips.

Denotes a RoHS-compliant device that may include lead that

is exempt under RoHS requirements. The lead finish is JESD97

category e3, and is compatible with both lead-based and lead-

free soldering processes.

†

A "+" anywhere on the top mark denotes a lead-free device.

A "#" denotes a RoHS-compliant device.

Pin Configurations appear at end of data sheet.

______________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

DS1340Z-33/T&R; Related Products

	DS1340Z-33/T&R;	DS1340_06	D1340-18	D1340-33	1340C-33	1340C-18	1340C-3	1340A1-33	1340A1-3	1340A1-18
Description	IC RTC CLK/CALENDAR I2C 8-SOIC	REAL TIME CLOCK, PDSO8	REAL TIME CLOCK, PDSO8	REAL TIME CLOCK, PDSO8	REAL TIME CLOCK, PDSO8	REAL TIME CLOCK, PDSO8	REAL TIME CLOCK, PDSO8	REAL TIME CLOCK, PDSO8	REAL TIME CLOCK, PDSO8	REAL TIME CLOCK, PDSO8
Number of functions	-	1	1	1	1	1	1	1	1	1
Number of terminals	-	8	8	8	8	8	8	8	8	8
Maximum operating temperature	-	85 Cel	85 Cel	85 Cel	85 Cel	85 Cel	85 Cel	85 Cel	85 Cel	85 Cel
Minimum operating temperature	-	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel
Maximum supply/operating voltage	-	1.89 V	1.89 V	1.89 V	1.89 V	1.89 V	1.89 V	1.89 V	1.89 V	1.89 V
Minimum supply/operating voltage	-	1.71 V	1.71 V	1.71 V	1.71 V	1.71 V	1.71 V	1.71 V	1.71 V	1.71 V
Rated supply voltage	-	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V
Processing package description	-	0.150 INCH, SOP-8	0.150 INCH, SOP-8	0.150 INCH, SOP-8	0.150 INCH, SOP-8	0.150 INCH, SOP-8	0.150 INCH, SOP-8	0.150 INCH, SOP-8	0.150 INCH, SOP-8	0.150 INCH, SOP-8
state	-	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE
Craftsmanship	-	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
packaging shape	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package Size	-	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
surface mount	-	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Terminal form	-	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal spacing	-	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm
terminal coating	-	TIN LEAD	TIN LEAD	TIN LEAD	TIN LEAD	TIN LEAD	TIN LEAD	TIN LEAD	TIN LEAD	TIN LEAD
Terminal location	-	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Packaging Materials	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
Temperature level	-	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Maximum FCLK clock frequency	-	0.0320 MHz	0.0320 MHz	0.0320 MHz	0.0320 MHz	0.0320 MHz	0.0320 MHz	0.0320 MHz	0.0320 MHz	0.0320 MHz
Information access methods	-	I2C	I2C	I2C	I2C	I2C	I2C	I2C	I2C	I2C
Microprocessor type	-	REAL TIME CLOCK	REAL TIME CLOCK	REAL TIME CLOCK	REAL TIME CLOCK	REAL TIME CLOCK	REAL TIME CLOCK	REAL TIME CLOCK	REAL TIME CLOCK	REAL TIME CLOCK

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