DS1511Y+ datasheet, PDF - EEWORLD Datasheet

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DS1511Y+: DescriptionY2K-Compliant Watchdog Real-Time Clocks; CategoryThe embedded processor and controller Microcontrollers and processors; File Size205KB，22 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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DS1511Y+ Overview

Y2K-Compliant Watchdog Real-Time Clocks

DS1511Y+ Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Maxim
Parts packaging code	DIP
package instruction	DIP, DIP28,.6
Contacts	28
Reach Compliance Code	not_compliant
ECCN code	EAR99
Factory Lead Time	12 weeks
maximum clock frequency	0.032 MHz
External data bus width	8
Information access methods	PARALLEL, DIRECT ADDRESS
interrupt capability	Y
JESD-30 code	R-PDIP-T28
JESD-609 code	e3
length	38.862 mm
Number of terminals	28
Number of timers	1
Maximum operating temperature	70 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Encapsulate equivalent code	DIP28,.6
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	5 V
Certification status	Not Qualified
Maximum seat height	9.398 mm
Maximum supply voltage	5.5 V
Minimum supply voltage	4.5 V
Nominal supply voltage	5 V
surface mount	NO
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Matte Tin (Sn)
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
shortest time	SECONDS
Maximum time at peak reflow temperature	NOT SPECIFIED
Volatile	YES
width	15.24 mm
uPs/uCs/peripheral integrated circuit type	TIMER, REAL TIME CLOCK
Base Number Matches	1

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DS1501/DS1511

Y2K-Compliant Watchdog Real-Time Clocks

GENERAL DESCRIPTION

The DS1501/DS1511 are full-function, year 2000-

compliant real-time clock/calendars (RTCs) with an

RTC alarm, watchdog timer, power-on reset, battery

monitors, 256 bytes NV SRAM, and a 32.768kHz

output. User access to all registers within the

DS1501/DS1511 is accomplished with a byte-wide

interface, as shown in Figure 8. The RTC registers

contain century, year, month, date, day, hours,

minutes, and seconds data in 24-hour binary-coded

decimal (BCD) format. Corrections for day of month

and leap year are made automatically.

FEATURES

BCD-Coded Century, Year, Month, Date, Day,

Hours, Minutes, and Seconds with Automatic

Leap-Year Compensation Valid Up to the Year

2100

Programmable Watchdog Timer and RTC

Alarm

Century Register; Y2K-Compliant RTC

+3.3 (W) or +5V (Y) Operation

Precision Power-On Reset

Power-Control Circuitry Support System

Power-On from Date/Day/Time Alarm or Key

Closure/Modem-Detect Signal

256 Bytes Battery-Backed SRAM

Auxiliary Battery Input

Accuracy of DS1511 Better than ±1

Minute/Month at +25°C

Day-of-Week/Date Alarm Register

Crystal Select Bit Allow RTC to Operate with

6pF or 12.6pF Crystal (DS1501)

Battery Voltage-Level Indicator Flags

Available as Chip (DS1501) or Stand-Alone

Encapsulated DIP Module with Embedded

Battery and Crystal (DS1511)

Underwriters Laboratories (UL) Recognized

PIN-PACKAGE

28 DIP (0.600)

28 TSOP

28 TSOP/Tape & Reel

TOP MARK*

DS1501W

DS1501WE

DS1501WEN

DS1501WE

APPLICATIONS

Remote Systems

Battery-Backed Systems

Telecom Switches

Office Equipment

Consumer Electronics

Pin Configurations and Typical Operating Circuit appear at

end of data sheet.

ORDERING INFORMATION

PART

DS1501W+

DS1501WE+

DS1501WEN+

DS1501WEN+T&R

DS1501WE+T&R

VOLTAGE (V)

3.3

TEMP RANGE

0°C to +70°C

-40°C to +85°C

0°C to +70°C

+Denotes

a lead(Pb)-free/RoHS-compliant package.

“+” anywhere on the top mark denotes a lead(Pb)-free device. An N or IND denotes an industrial temperature device.

Ordering Information continued at end of data sheet.

Note:

Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device

may be simultaneously available through various sales channels. For information about device errata, click here:

www.maxim-ic.com/errata.

1 of 22

REV: 010909

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