1340C-33 datasheet, PDF - EEWORLD Datasheet

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1340C-33: DescriptionREAL TIME CLOCK, PDSO8; Categorysemiconductor The embedded processor and controller; File Size234KB，14 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html

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1340C-33 Overview

REAL TIME CLOCK, PDSO8

1340C-33 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	1.89 V
Minimum supply/operating voltage	1.71 V
Rated supply voltage	1.8 V
Processing package description	0.150 INCH, SOP-8
state	ACTIVE
Craftsmanship	CMOS
packaging shape	RECTANGULAR
Package Size	SMALL OUTLINE
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	1.27 mm
terminal coating	TIN LEAD
Terminal location	DUAL
Packaging Materials	PLASTIC/EPOXY
Temperature level	INDUSTRIAL
Maximum FCLK clock frequency	0.0320 MHz
Information access methods	I2C
Microprocessor type	REAL TIME CLOCK

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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.

1340C-33 Related Products

	1340C-33	DS1340_06	D1340-18	D1340-33	1340C-18	1340C-3	1340A1-33	1340A1-3	1340A1-18	DS1340Z-33/T&R;
Description	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	IC RTC CLK/CALENDAR I2C 8-SOIC
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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