DS1315SN+5 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > The embedded processor and controller> Microcontrollers and processors> DS1315SN+5

DS1315SN+5: DescriptionReal Time Clock, CMOS, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOP-16; CategoryThe embedded processor and controller Microcontrollers and processors; File Size438KB，22 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

Download Datasheet Parametric Compare View All

DS1315SN+5 Overview

Real Time Clock, CMOS, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOP-16

DS1315SN+5 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Maxim
Parts packaging code	SOIC
package instruction	SOP,
Contacts	16
Reach Compliance Code	compliant
ECCN code	EAR99
maximum clock frequency	0.032 MHz
Information access methods	SERIAL, FIXED PROTOCOL
JESD-30 code	R-PDSO-G16
JESD-609 code	e3
length	10.335 mm
Number of terminals	16
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	2.68 mm
Maximum supply voltage	5.5 V
Minimum supply voltage	4.5 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	7.51 mm
uPs/uCs/peripheral integrated circuit type	TIMER, REAL TIME CLOCK
Base Number Matches	1

Preview

Download Datasheet

View All

www.dalsemi.com

www.maxim-ic.com

DS1315

Phantom Time Chip

FEATURES

Real-Time Clock Keeps Track of Hundredths

of Seconds, Seconds, Minutes, Hours, Days,

Date of the Month, Months, and Years

Adjusts for Months with Fewer than 31 Days

Automatic Leap Year Correction Valid Up to

2100

No Address Space Required to Communicate

with RTC

Provides Nonvolatile Controller Functions for

Battery Backup of SRAM

Supports Redundant Battery Attachment for

High-Reliability Applications

Full ±10% V

Operating Range

+3.3V or +5V Operation

Industrial (–45°C to +85°C) Operating

Temperature Ranges Available

Drop-In Replacement for DS1215

DESCRIPTION

The DS1315 Phantom Time Chip is a

combination of a CMOS timekeeper and a

nonvolatile memory controller. In the absence of

power, an external battery maintains the

timekeeping operation and provides power for a

CMOS static RAM. The watch keeps track of

hundredths of seconds, seconds, minutes, hours,

day, date, month, and year information. The last

day of the month is automatically adjusted for

months with less than 31 days, including leap

year correction. The watch operates in one of two

formats: a 12-hour mode with an AM/PM

indicator or a 24-hour mode. The nonvolatile

controller supplies all the necessary support

circuitry to convert a CMOS RAM to a

nonvolatile memory. The DS1315 can be

interfaced with either RAM or ROM without

leaving gaps in memory.

PIN CONFIGURATIONS

BAT1

GND

CC1

CC0

BAT2

RST

CEI

CEO

ROM/RAM

PIN DESCRIPTION

X1, X2

DS1315

BAT1

GND

ROM/

RAM

CEO

CEI

RST

DIP (300 mils)

Pin Configurations continued at end of data sheet.

BAT2

CC0

CC1

- 32.768 kHz Crystal Connection

- Write Enable

- Battery 1 Input

- Ground

- Data Input

- Data Output

- ROM/RAM Mode Select

- Chip Enable Output

- Chip Enable Input

- Output Enable

- Reset

- Battery 2 Input

- Switched Supply Output

- Power Supply Input

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 21

REV: 072605

DS1315 Phantom Time Chip

Operation

Communication with the Time Chip is established by pattern recognition of a serial bit stream of 64 bits

which must be matched by executing 64 consecutive write cycles containing the proper data on data in

(D). All accesses which occur prior to recognition of the 64-bit pattern are directed to memory via the

chip enable output pin (

CEO

After recognition is established, the next 64 read or write cycles either extract or update data in the Time

Chip and

CEO

remains high during this time, disabling the connected memory.

Data transfer to and from the timekeeping function is accomplished with a serial bit stream under control

of chip enable input (

CEI

), output enable (

), and write enable (

). Initially, a read cycle using the

CEI

and

control of the Time Chip starts the pattern recognition sequence by moving pointer to the

first bit of the 64-bit comparison register. Next, 64 consecutive write cycles are executed using the

CEI

and

control of the Time Chip. These 64 write cycles are used only to gain access to the Time Chip.

When the first write cycle is executed, it is compared to bit 1 of the 64-bit comparison register. If a match

is found, the pointer increments to the next location of the comparison register and awaits the next write

cycle. If a match is not found, the pointer does not advance and all subsequent write cycles are ignored. If

a read cycle occurs at any time during pattern recognition, the present sequence is aborted and the

comparison register pointer is reset. Pattern recognition continues for a total of 64 write cycles as

described above until all the bits in the comparison register have been matched. (This bit pattern is shown

in Figure 2). With a correct match for 64 bits, the Time Chip is enabled and data transfer to or from the

timekeeping registers may proceed. The next 64 cycles will cause the Time Chip to either receive data on

D, or transmit data on Q, depending on the level of

pin or the

pin. Cycles to other locations

outside the memory block can be interleaved with

CEI

cycles without interrupting the pattern recognition

sequence or data transfer sequence to the Time Chip.

A standard 32.768 kHz quartz crystal can be directly connected to the DS1315 via pins 1 and 2 (X1, X2).

The crystal selected for use should have a specified load capacitance (C

) of 6 pF. For more information

on crystal selection and crystal layout considerations, please consult Application Note 58, “Crystal

Considerations with Dallas Real Time Clocks.”

4 of 22

DS1315SN+5 Related Products

	DS1315SN+5	DS1315S+5	DS1315SN+33	DS1315S+5/T&R	DS1315S+33
Description	Real Time Clock, CMOS, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOP-16	Real Time Clock, CMOS, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOP-16	Real Time Clock, CMOS, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOP-16	Real Time Clock, CMOS, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOP-16	Real Time Clock, CMOS, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOP-16
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to
Maker	Maxim	Maxim	Maxim	Maxim	Maxim
Parts packaging code	SOIC	SOIC	SOIC	SOIC	SOIC
package instruction	SOP,	SOP,	0.300 INCH, ROHS COMPLIANT, SOP-16	0.300 INCH, ROHS COMPLIANT, SOP-16	0.300 INCH, ROHS COMPLIANT, SOP-16
Contacts	16	16	16	16	16
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99
maximum clock frequency	0.032 MHz	0.032 MHz	0.032 MHz	0.032 MHz	0.032 MHz
Information access methods	SERIAL, FIXED PROTOCOL	SERIAL, FIXED PROTOCOL	SERIAL, FIXED PROTOCOL	SERIAL, FIXED PROTOCOL	SERIAL, FIXED PROTOCOL
JESD-30 code	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16
JESD-609 code	e3	e3	e3	e3	e3
length	10.335 mm	10.335 mm	10.335 mm	10.335 mm	10.335 mm
Number of terminals	16	16	16	16	16
Maximum operating temperature	85 °C	70 °C	85 °C	70 °C	70 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	SOP	SOP	SOP	SOP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	2.68 mm	2.68 mm	2.68 mm	2.68 mm	2.68 mm
Maximum supply voltage	5.5 V	5.5 V	3.6 V	5.5 V	3.6 V
Minimum supply voltage	4.5 V	4.5 V	3 V	4.5 V	3 V
Nominal supply voltage	5 V	5 V	3.3 V	5 V	3.3 V
surface mount	YES	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	COMMERCIAL	INDUSTRIAL	COMMERCIAL	COMMERCIAL
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
width	7.51 mm	7.51 mm	7.51 mm	7.51 mm	7.51 mm
uPs/uCs/peripheral integrated circuit type	TIMER, REAL TIME CLOCK	TIMER, REAL TIME CLOCK	TIMER, REAL TIME CLOCK	TIMER, REAL TIME CLOCK	TIMER, REAL TIME CLOCK
Base Number Matches	1	1	1	1	1

Recommended Resources

Typical Schmitt trigger circuit diagram

Rear channel ambient sound generating circuit

Photodiode DC amplifier circuit

Programmable counter

Integrated regulated power supply with positive and negative output voltage tracking Part 2

Three-phase motor contactor interlocking with inching commutation circuit

Technology Transfer: Functions for measuring and calculating the harmonic component ratio of voltage and current....; jurryz Microcontroller MCU

What parameters should be considered when selecting diodes in the PFC circuit of the power supply in a desktop computer?: [i=s] This post was last edited by benny512 on 2017-12-25 15:46 [/i] Dear experts, I would like to humbly ask the seniors about the PFC circuit on PC power: 1. What parameters should be paid attention...; benny512 Power technology

How to use the HT49 MCU timer counter: How to use the HT49 MCU timer counter...; lorant MCU

TIVAC LAUNCHPAD ADC internal temperature sensor: The code is in ti\TivaWare_C_Series-2.0.1.11577\examples\peripherals\adc. I modified it a little bit and tried it with a thermometer. The temperature is between 9 (balcony) and 20 (room temperature). ...; ddlxiaoxu Microcontroller MCU

Detailed explanation of the principle of resistive screen: [i=s] This post was last edited by paulhyde on 2014-9-15 03:29 [/i] Detailed explanation of the principle of resistive screen...; 奋斗了 Electronics Design Contest

How to generate programmer burning files: The microcontroller runs on programs, which are burned into the microcontroller chip by a programmer . We write different burning files, and the microcontroller will perform different functions accord...; dianou Analog electronics

Shortcut: S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

Popular Components