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DS1216H

更新时间： 2024-02-29 03:16:45

品牌	Logo	应用领域
美信 - MAXIM		外围集成电路
页数	文件大小	规格书
15页	648K
描述
SmartWatch RAM (DS1216B/C/D/H); SmartWatch ROM (DS1216E/F)

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DS1216H 技术参数

是否Rohs认证：	不符合	生命周期：	Active
Reach Compliance Code：	not_compliant	风险等级：	5.41
信息访问方法：	PARALLEL	中断能力：	N
JESD-30 代码：	R-PDIP-T28	JESD-609代码：	e0
端子数量：	28	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：	DIP	封装等效代码：	DIP28,.6
封装形状：	RECTANGULAR	封装形式：	IN-LINE
电源：	5 V	认证状态：	Not Qualified
子类别：	Timer or RTC	标称供电电压：	5 V
表面贴装：	NO	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	DUAL	最短时间：	1/100 SECOND
易失性：	NO	Base Number Matches：	1

DS1216H 数据手册

19-6075; Rev 11/11

DS1216

SmartWatch RAM (DS1216B/C/D/H);

SmartWatch ROM (DS1216E/F)

GENERAL DESCRIPTION

FEATURES

The DS1216 SmartWatch RAM and SmartWatch

ROM sockets are 600-mil-wide DIP sockets with a

built-in CMOS watch function, an NV RAM

controller circuit, and an embedded lithium energy

source. The sockets provide an NV RAM solution

for memory sized from 2K x 8 to 512K x 8 with

package sizes from 26 pins to 32 pins. When a

socket is mated with a CMOS SRAM, it provides a

complete solution to problems associated with

memory volatility and uses a common energy

source to maintain time and date. The SmartWatch

ROM sockets use the embedded lithium source to

maintain the time and date only. A key feature of

the SmartWatch is that the watch function remains

transparent to the RAM. The SmartWatch monitors

V_CCfor an out-of-tolerance condition. When such a

condition occurs, an internal lithium energy source

is automatically switched on and write protection

is unconditionally enabled to prevent loss of watch

and RAM data.

Keeps Track of Hundredths of Seconds,

Seconds, Minutes, Hours, Days, Date of the

Month, Months, and Years

Converts Standard 2K x 8 Up to 512K x 8

CMOS Static RAMs into Nonvolatile Memory

Embedded Lithium Energy Cell Maintains

Watch Information and Retains RAM Data

Watch Function is Transparent to RAM

Operation

Automatic Leap Year Compensation Valid Up

to 2100

Lithium Energy Source is Electrically

Disconnected to Retain Freshness Until Power

is Applied for the First Time

Proven Gas-Tight Socket Contacts

Full ±10% Operating Range

Accuracy Better Than ±1 Minute/Month

at +25°C

TYPICAL OPERATING CIRCUIT

ORDERING INFORMATION

PART

TEMP RANGE PIN-PACKAGE

DS1216B

DS1216C

DS1216D

DS1216E

DS1216F

DS1216H

0°C to +70°C

28 SmartWatch Socket

32 SmartWatch Socket

28 SmartWatch Socket

32 SmartWatch Socket

(See Figure 2 for letter suffix marking identification.)

Selector Guide appears on page 2.

1 of 15

12 3 4 5 6 7...15

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与DS1216H相关器件

型号	品牌	描述	获取价格	数据表
DS1216H-3.3V	DALLAS	Real Time Clock, 0 Timer(s), CMOS,	获取价格
DS1217	DALLAS	Nonvolatile Read/Write Cartridge	获取价格
DS1217	BB	8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER	获取价格
DS1217A	DALLAS	Nonvolatile Read/Write Cartridge	获取价格
DS1217A/128K-25	MAXIM	Memory Circuit, 16KX8, CMOS	获取价格
DS1217A/128K-25	DALLAS	Nonvolatile Read/Write Cartridge	获取价格

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