Datasheet > NR8576SERIES

NR8576SERIES

更新时间： 2024-11-01 23:54:27

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描述
Real-time Clock Modules

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NR8576SERIES 数据手册

NR8576 Series

Real-time Clock Modules

NIPPON PRECISION CIRCUITS INC.

OVERVIEW

PINOUTS

The NR8576 Series devices are serial-interface type

real-time clock module ICs with built-in crystal

oscillator elements. They feature timer counter cir-

cuits that keep track of time from the current second

to the current year, automatic leap-year adjustment,

and a supply voltage detect function. Also, a 32.768

kHz/1 Hz select output function is incorporated for

independent hardware control. They are available in

compact 14-pin SOPs (NR8576A×) and miniature

18-pin SOPs (NR8576B×).

14-pin SOP

VSS

FOUT

N.C

FSEL

DATA

CLK

VDD

N.C

FOE

N.C

FEATURES

18-pin SOP

■ Crystal oscillator element built-in for adjustment-

free use

■ Timer counters for second, minute, hour, day, day

of the week, month, and year

N.C

FOE

■ 2.5 to 5.5 V operating voltage range

■ 1.7 ± 0.3 V supply voltage detection threshold

■ 1.0 µA at 3.0 V (typ) current consumption

■ Automatic leap-year calendar adjustment

■ 32.768 kHz and 1 Hz output selectable

■ Package

N.C

VDD

N.C

CLK

FSEL

• 14-pin SOP (NR8576A×)

• 18-pin SOP (NR8576B×)

DATA

FOUT

VSS

SERIES CONFIGURATION

Device

Package

14-pin SOP

18-pin SOP

Frequency deviation

5 ± 12 ppm

NR8576AA

NR8576AB

NR8576BA

NR8576BB

5 ± 23 ppm

5 ± 12 ppm

5 ± 23 ppm

NIPPON PRECISION CIRCUITS—1

12 3 4 5 6 7...10

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