CD13S38A I ² C RTC with 56 bytes of NV RAM-ChisynV Microelectronics (Beijing) Co., Ltd.

The CD13S38 serial real-time clock (RTC) is a lowpower, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I2C interface. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The CD13S38 has a built-in power sense circuit that detects power failures and automatically switches to the backup supply, maintaining time and date operation.

Parameters

Supply(V):1.71 to 5.5
Time holding current(nA):0.8
Load Capacitance(pF):12.5
Memory Type:NV SRAM
Interface:I2C
Function:RTC

Features

Completely Manages All Timekeeping Functions

RTC Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100

56-Byte, Battery-Backed, GeneralPurpose RAM with Unlimited Writes Programmable Square-Wave Output Signal
Surface-Mount Package with an Integrated Crystal (DS1338C) Saves Additional Space and Simplifies Design
Interfaces with Most Microcontrollers

I2C Serial Interface
Low-Power Operation Extends Battery Backup Run Time

Automatic Power-Fail Detect and Switch Circuitry
-40°C to +85°C Industrial Temperature Range Supports Operation in a Wide Range of Applications

Application

Handhelds (GPS, POS Terminal)
Consumer Electronics (Set-Top Box, Digital Recording, Network Appliance)
Office Equipment (Fax/Printer, Copier)
Medical (Glucometer, Medicine Dispenser)
Telecommunications (Router, Switcher, Server)
Other (Utility Meter, Vending Machine, Thermostat, Modem)

Parameters

MALL MALL

Part Number

Package

电源电压(V)

计时电流(uA)

负载电容(pF)

存储器类型

接口

功能

Temp Range(°C)

Open

CD13S38-1.8

CD13S38串行实时时钟(RTC)是低功耗、全二进制编码的十进制(BCD)时钟/日历，外加56字节NV SRAM。地址与数据通过I²C总线串行传送。时钟/日历可以提供秒、分、时、日、月、年信息。对于少于31天的月份，到每月的最后一天会自动进行调节，包括闰年修正。该时钟可以通过AM/PM指示器工作在24小时模式或12小时模式。CD13S38具有一个内部电源感应电路，可以检测到电源失效，并自动转换到备用电源。

Datasheet

PackageSOP-8

电源电压(V) 1.71 to 5.5

计时电流(uA) 0.8

负载电容(pF) 12.5

存储器类型 NV SRAM

接口 I2C

功能 RTC

Temp Range(°C) -40 to 85

Open

CD13S38AS16

Datasheet

PackageSOP-16

电源电压(V) 1.71 to 5.5

计时电流(uA) 0.8

负载电容(pF) 12.5

存储器类型 NV SRAM

接口 I2C

功能 RTC

Temp Range(°C) -40 to 85

Open

CD13S38AMS8

Datasheet

PackageMSOP-8

电源电压(V) 1.71 to 5.5

计时电流(uA) 0.8

负载电容(pF) 12.5

存储器类型 NV SRAM

接口 I2C

功能 RTC

Temp Range(°C) -40 to 85

Open

CD13S38-3.0

Datasheet

PackageSOP-8

电源电压(V) 1.71 to 5.5

计时电流(uA) 0.8

负载电容(pF) 12.5

存储器类型 NV SRAM

接口 I2C

功能 RTC

Temp Range(°C) -40 to 85

Open

CD13S38-3.3

Datasheet

PackageSOP-8

电源电压(V) 1.71 to 5.5

计时电流(uA) 0.8

负载电容(pF) 12.5

存储器类型 NV SRAM

接口 I2C

功能 RTC

Temp Range(°C) -40 to 85

Open

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CD13S38A | CAD Modle