Datasheet > DS1216E-3

DS1216E-3

更新时间： 2024-01-12 00:25:44

品牌	Logo	应用领域
美信 - MAXIM		光电二极管外围集成电路
页数	文件大小	规格书
6页	64K
描述
Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, PDIP28, 0.600 INCH, SOCKET TYPE, DIP-28

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DS1216E-3 技术参数

Application Note 509

Using the SmartWatch/Phantom

Clocks with a Microcontroller

www.maxim-ic.com

PIN ASSIGNMENT

RST 1

28 V_CC

27 WE

26 V_CC

22 OE

[A2]

20 CE

[A0] 10

DQ0 11

GND 14

DS1216B/C/D/E

28-Pin Intelligent Socket

DESCRIPTION

The Phantom clocks and SmartWatch sockets provide battery-backed NV SRAM or NV SRAM control,

respectively, and add timekeeping information. The timekeeping data is accessed without using any of the

SRAM data space. Access of the timekeeping data is accomplished by writing a unique 64-bit sequence

to the controller. The controller then inhibits access to the SRAM for the next 64 reads or writes.

In this example, a DS1216C, DS1216E, DS1243Y, or DS1244Y is connected to a DS2250. The DS2250

microcontroller is compatible with the industry standard 8051 architecture. Larger densities could be

supported by using bank-switching techniques. Some memory expansion techniques are discussed in

Application Note 81, “Memory Expansion with the High-Speed Microcontroller Family.”

A SmartWatch/Phantom Clock schematic of the circuit is shown on page 2. Software is shown on page 3.

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型号	品牌	描述	获取价格	数据表
DS1216EK	DALLAS	Timer or RTC, Non-Volatile, CMOS, PDIP28,	获取价格
DS1216F	DALLAS	SmartWatch RAM DS1216B/C/D/H SmartWatch ROM DS1216E/F	获取价格
DS1216F	MAXIM	SmartWatch RAM (DS1216B/C/D/H); SmartWatch ROM (DS1216E/F)	获取价格
DS1216F-3	MAXIM	Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, PDIP32, 0.600 INCH, SOCKET TYPE, DIP-32	获取价格
DS1216F-3	DALLAS	Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, PDIP32, 0.600 INCH, DIP-32	获取价格
DS1216H	DALLAS	SmartWatch RAM DS1216B/C/D/H SmartWatch ROM DS1216E/F	获取价格