Datasheet > BU9873F-GTE2

BU9873F-GTE2

更新时间： 2022-02-26 10:33:13

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
40页	1221K
描述
I2C BUS Serial Interface RTC with High-precision Oscillation Adjustment

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BU9873F-GTE2 数据手册

Daattaasshheeeett

BU9873

Block Diagram

32KOUT

VDD

32KOUT

CONTROL

TIME COUNTER

OSC

I/O

DETECT

SEC

MIN

CONTROL

FILTER

OCSIN

OSCOUT

SCL

SDA

HOUR

WEEK

DAY

DIV

MONTH

YEAR

FILTER

SDA

CONTROL

ALARM_A

ALARM_B

COMP_A

COMP_B

VSS

INTRB

CONTROL

Figure 4. Block diagram

Absolute Maximum Ratings

Item

Symbol

Rating

－0.3 to ＋6.5

Unit

Remark

Supply Voltage

V_DD

When using above Ta=25, decreased by 4.5mW/°C.

When using above Ta=25, decreased by 3.3mW/°C.

When using above Ta=25, decreased by 3.1mW/°C.

When using above Ta=25, decreased by 3.0mW/°C.

0.45 (SOP8)

0.45 (SOP-J8)

Power Dissipation

0.33 (TSSOP-B8)

0.31 (MSOP8)

0.30 (VSON008X2030)

Storage

Temperature

Operating

Temperature

Tstd

Topt

－55 to +125

－40 to +85

°C

The Max value of Terminal Voltage is not over 6.5V.

When the pulse width is 50ns or less, the Min value of

Terminal Voltage is not lower than -0.8V.

Terminal Voltage

―

-0.3 to V_DD+0.3

Caution: Operating the IC over the absolute maximum ratings may damage the IC. In addition, it is impossible to predict all destructive situations such as

short-circuit modes, open circuit modes, etc. Therefore, it is important to consider circuit protection measures, like adding a fuse, in case the IC is operated in a

special mode exceeding the absolute maximum ratings

Recommended Operating Conditions

Item

Symbol

Rating

Unit

Supply Voltage

V_DD

1.8 to 5.5

Timekeeping

Voltage^{(Note 1)}

V_CLK

V_IN

1.45 to 5.5

Input Voltage

0 to V_DD

(Note1) For minimum time keeping voltage, C_GOUT= C_DOUT= 0 pF; Quartz crystal unit: C_L(load capacitor) = 6 pF to 12.5 pF, Maximum value of R₁(equivalent

series resistance) = 80 KΩ.

www.rohm.com

TSZ02201-0919AGZ00010-1-2

4/37

TSZ22111・15・001

13.Sep.2013 REV.001

1 2 345 6 7...40

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