Datasheet > 微控制器和处理器 > 计时器或实时时钟> DS1394U-33+T&R

DS1394U-33+T&R

更新时间： 2024-11-05 13:07:23

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
26页	379K
描述
Timer or RTC, 1 Timer(s), CMOS, PDSO10, ROHS COMPLIANT, MICRO, SOP-10

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技术参数
数据手册
替代型号

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DS1394U-33+T&R 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	TSSOP,
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	6 weeks
风险等级：	1.7	最大时钟频率：	0.032 MHz
信息访问方法：	SERIAL, 2-WIRE/I2C	JESD-30 代码：	S-PDSO-G10
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	1	端子数量：	10
计时器数量：	1	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	225
座面最大高度：	1.1 mm	最大供电电压：	5.5 V
最小供电电压：	2.97 V	标称供电电压：	3.3 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	3 mm	Base Number Matches：	1

DS1394U-33+T&R 数据手册

19-4898; Rev 3; 8/09

Low-Voltage SPI/3-Wire RTCs with

Trickle Charger

0–DS1394

♦ Reset Output/Debounced Input (DS1391/DS1393)

♦ Separate SQW and INT Output (DS1392)

♦ Trickle-Charge Capability

♦ SPI Supports Modes 0 and 2 (DS1394)

♦ SPI Supports Modes 1 and 3 (DS1390/DS1391)

♦ 3-Wire Interface (DS1392/DS1393)

♦ 4MHz at 3.0V and 3.3V

General Description

The low-voltage serial-peripheral interface (SPI™)

DS1390/DS1391/DS1394 and the low-voltage 3-wire

DS1392/DS1393 real-time clocks (RTCs) are clocks/cal-

endars that provide hundredths of a second, seconds,

minutes, hours, day, date, month, and year information.

The date at the end of the month 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 an AM/PM indicator.

One programmable time-of-day alarm is provided. A

temperature-compensated voltage reference monitors

♦ 1MHz at 1.8V

♦ Three Operating Voltages: 1.8V 5%, 3.0V 10%,

and 2.97 to 5.5V (DS1394: 3.3V 10%)

the status of V

and automatically disables the bus

♦ Industrial Temperature Range: -40°C to +85°C

♦ Underwriters Laboratories (UL) Recognized

interface and switches to the backup supply if a power

failure is detected. On the DS1390, a single open-drain

output provides a CPU interrupt or a square wave at

one of four selectable frequencies. The DS1391

replaces the SQW/INT pin with a RST output/

debounced input.

Ordering Information

TYP

OPERATING

VOLTAGE (V)

PIN-

PACKAGE

†

PART

TOP MARK

The DS1390, DS1391, and DS1394 are programmed

serially through an SPI-compatible, bidirectional bus.

The DS1392 and DS1393 communicate over a 3-wire

serial bus, and the extra pin is used for either a sepa-

rate interrupt pin or a RST output/debounced input.

DS1390U-18+

DS1390U-3+

DS1390U-33+

DS1390U-33/V+

DS1391U-18+

DS1391U-3+

DS1391U-33+

DS1392U-18+

DS1392U-3+

DS1392U-33+

DS1393U-18+

DS1393U-3+

DS1393U-33+

DS1394U-33+

1.8

3.0

3.3

1.8

3.0

3.3

1.8

3.0

3.3

1.8

3.0

3.3

10 μSOP

1390 rr-18

1390 rr-3

1390 rr-33

1391 rr-18

1391 rr-3

1391 rr-33

1393 rr-18

1392 rr-3

1392 rr-33

1393 rr-18

1393 rr-3

1393 rr-33

1394 rr-33

All five devices are available in a 10-pin µSOP package,

and are rated over the industrial temperature range.

Applications

Hand-Held Devices

GPS/Telematics Devices

Embedded Time Stamping

Medical Devices

Features

♦ Real-Time Clock Counts Hundredths of Seconds,

Seconds, Minutes, Hours, Day, Date, Month, and

Year with Leap-Year Compensation Valid Up to

2100

Note: All devices are rated for the -40°C to +85°C operating

temperature range.

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

/V denotes an automotive qualified part.

†A “+” anywhere on the top mark denotes a lead(Pb)-

free/RoHS-compliant package.

♦ Output Pin Configurable as Interrupt or Square

Wave with Programmable Frequency of

32.768kHz, 8.192kHz, 4.096kHz, or 1Hz

(DS1390/DS1393/DS1394 Only)

rr = Revision code on second line of top mark.

♦ One Time-of-Day Alarm

♦ Power-Fail Detect and Switch Circuitry

Typical Operating Circuits and Pin Configurations appear at

end of the data sheet.

SPI is a trademark of Motorola, Inc.

______________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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DS1394U-33+T&R 替代型号

型号	品牌	替代类型	描述	数据表
DS1394U-33+	MAXIM	类似代替	Low-Voltage SPI/3-Wire RTCs with Trickle Charger

与DS1394U-33+T&R相关器件

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DS1-40-0001	SCHURTER	获取价格	Storage Choke, fully potted resign
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DS1-40-0003	SCHURTER	获取价格	Storage Choke, fully potted resign
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