Datasheet > MSM58321

MSM58321

更新时间： 2024-11-26 10:45:19

品牌	Logo	应用领域
冲电气 - OKI		时钟
页数	文件大小	规格书
16页	122K
描述
REAL TIME CLOCK/CALENDAR

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中文翻译

获取价格

数据手册

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MSM58321 数据手册

¡ Semiconductor

MSM58321

¡ Semiconductor

MSM58321

REAL TIME CLOCK/CALENDAR

DESCRIPTION

The MSM 58321 is a metal gate CMOS Real

Time Clock/Calendar with a battery backup

function for use in bus-oriented micropro-

cessor applications.

The time is read with 4-bit DATA I/O, AD-

DRESSWRITE,READ,andBUSY;itiswritten

with 4-bit DATA I/O, ADDRESS WRITE,

WRITE, and BUSY.

The4-bitbidirectionalbuslinemethodisused

for the data I/O circuit; the clock is set, cor-

rected, or read by accessing the memory.

FEATURES

•

7 Function-Second, Minute, Hour, Day,

Day-of-Week, Month, Year

Automatic leap year calender

12/24 hour format

Frequency divider 5-poststage reset

Reference signal output

•

32.768 kHz crystal controlled operation

Single 5V power supply

Back-up battery operation to VDD = 2.2V

Low power dissipation

•

90 µW max. at VDD = 3V

2.5 mW max. at VDD = 5V

•

16 pin plastic DIP (DIP 16-P-300)

FUNCTIONAL BLOCK DIAGRAM

5-poststage (O₁₁~O₁₅

)

1024 Hz

RFB

1/60 Hz

1 Hz

1/3600 Hz

2¹⁵

BUSY

OSC

\DATA BUS

BUSY

E-F

SWITCH

S1 S10

MI1 MI10

STOP

TEST

H1 H10

TEST

R_p

1/10 1/6

SECOND

1/10 1/6

MINUTE

1/12 or 1/24

HOUR

1/7

1 Hz

WEEK

R_p

WRITE

WRIETE

WRITE

READ

H10

R_p

S10

MI1 MI10

READ

CS1

CS2

DATA BUS

TEST-P

R_p

TRI-STATE

CONTROL

D1 D10

MO1 MO10

Y10

1/12

1/10 1/10

YEAR

1/10 1/3

DAY

MONTH

S10

ADDRESS

DECODER

ADDRESS

LATCH

WRITE

MI1

MI10

H10

D10

MO1

MO10

Y10

E-F

D1 D10

MO1 MO10

Y1 Y10

R_p= 200 k TYP

E-F

ADDRESS

WRITE

R_p

12 3 4 5 6 7...16

中文翻译

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MSM5839BGS-L2	OKI	获取价格	Liquid Crystal Driver, 40-Segment, CMOS, PQFP56, 9 X 10 MM, 0.65 MM PITCH, PLASTIC, QFP-56
MSM5839BGS-VK	OKI	获取价格	Liquid Crystal Driver, 40-Segment, CMOS, PQFP56, 9 X 10 MM, PLASTIC, QFP-56
MSM5839C	OKI	获取价格	40-DOT SEGMENT DRIVER
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MSM5839CGS-K	OKI	获取价格	Liquid Crystal Driver, 40-Segment, CMOS, PQFP56, 9 X 10 MM, 0.65 MM PITCH, PLASTIC, QFP-56
MSM5840	OKI	获取价格	CMOS 4-BIT SINGLE CHIP MICROCONTROLLER