Datasheet > HMNR88DVLF-85

HMNR88DVLF-85

更新时间： 2024-10-15 02:51:27

品牌	Logo	应用领域
DLGHANBIT		静态存储器
页数	文件大小	规格书
12页	741K
描述
5.0 or 3.3V, 64K bit (8 Kbit x 8) TIMEKEEPER NVSRAM

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数据手册

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HMNR88DVLF-85 数据手册

DLGHANBIT

DLGHANBIT Confidential

HMNR88D(V)

5.0 or 3.3V, 64K bit (8 Kbit x 8) TIMEKEEPER NVSRAM

Part No. HMNR88D(V)

GENERAL DESCRIPTION

The HMNR88D(V) TIMEKEEPER SRAM is a 8Kbit x 8 non-volatile static RAM and real time clock organized as 8,192

words by 8 bits. The special DIP package provides a fully integrated battery back-up memory and real time clock solution.

The HMNR88D(V) directly replaces industry standard 8Kbit x 8 SRAMs. It also provides the non-volatility of Flash without

any requirement for special WRITE timing or limitations on the number of WRITEs that can be performed.

FEATURES

■ INTEGRATED LOW POWER SRAM, REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT, BATTERY and

CRYSTAL

■ BCD CODED YEAR, MONTH, DAY, DATE, HOURS, MINUTES, and SECONDS

■ AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION VOLTAGES :

(V_PFD= Power-fail Deselect Voltage)

– HMNR88D(V) : V_CC= 4.5 to 5.5V

4.1V ≤ V_PFD≤ 4.5V

– HMNR88D(V)V: V_CC= 3.0 to 3.6V

2.7V ≤ V_PFD≤ 3.0V

■ CONVENTIONAL SRAM OPERATION : UNLIMITED WRITE CYCLES

■ SOFTWARE CONTROLLED CLOCK CALIBRATION FOR HIGH ACCURACY APPLICATIONS

■ 5 YEARS OF DATA RETENTION and CLOCK OPERATION IN THE ABSENCE OF POWER PIN and FUNCTION

COMPATIBLE WITH INDUSTRY STANDARD 8K x 8 SRAMS

■ SELF-CONTAINED BATTERY and CRYSTAL IN DIP PACKAGE

PIN ASSIGNMENT

OPTIONS

 Timing

70 ns

MARKING

/RST

A₁₂

A₇

V_CC

/WE

-70

-85

85 ns

A₈

A₆

A₉

A₅

A₁₁

A₄

/OE

A₁₀

A₃

A₂

A₁

A₀

/CE

DQ₇

DQ₆

DQ₅

DQ₄

DQ₃

DQ₀

DQ₁

DQ₂

V_SS

28-pin Encapsulated Package

URL : www.dlghb.co.kr

Rev. 1.3 (Apr, 2009)

DLG HANBIT Co.,Ltd

12 3 4 5 6 7...12

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