Datasheet > M6242B

M6242B

更新时间： 2022-11-24 21:44:06

品牌	Logo	应用领域
冲电气 - OKI		时钟
页数	文件大小	规格书
18页	177K
描述
DIRECT BUS CONNECTED CMOS REAL TIME CLOCK/CALENDAR

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数据手册

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M6242B 数据手册

¡ Semiconductor

MSM6242B

Address Input

Address

Data

D₁

Count

value

Name

Description

Input

A₃A₂

A₁A₀

D₃

S₈

D₂

S₄

D₀

S₁

1-second digit register

10-second digit register

1-minute digit register

10-minute digit register

1-hour digit register

S₁

S₁₀

MI₁

MI₁₀

H₁

S₂

S₂₀

mi₂

mi₂₀

h₂

0 to 9

0 to 5

0 to 9

0 to 5

0 to 9

S₄₀

mi₄

mi₄₀

h₄

S₁₀

mi₁

mi₁₀

h₁

mi₈

h₈

PM/

0 to 2

or 0 to 1

PM/AM, 10-hour digit

H₁₀

h₂₀

h₁₀

d₈

d₄

d₂

d₂₀

mo₂

d₁

d₁₀

mo₁

MO₁₀

y₁

0 to 9

0 to 3

0 to 9

0 to 1

0 to 9

0 to 6

D₁

D₁₀

MO₁

MO₁₀

Y₁

1-day digit register

10-day digit register

1-month digit register

10-month digit register

1-year digit register

10-year digit register

Week register

mo₈

mo₄

y₈

y₄

y₂

y₈₀

y₄₀

w₄

y₂₀

w₂

y₁₀

Y₁₀

w₁

sec.

ADJ

IRQ

FLAG

C_D

—

HOLD

BUSY

Control Register D

ITRPT

/STND

C_E

C_F

t₁

t₀

—

MASK

Control Register E

Control Register F

STOP REST

TEST 24/12

REST = RESET

ITRPT/STND = INTERRUPT/STANDARD

Note 1)

Note 2)

Note 3)

Bit * does not exist (unrecognized during a write and held at "0" during a read).

Be sure to mask the AM/PM bit when processing 10's of hour's data.

BUSY bit is read only. The IRQ FLAG bit can only be set to a "0". Setting the IRQ FLAG to a "1" is done by

hardware.

Note 4)

PM at 1 and AM at 0 for PM / AM bit.

Figure 1. Register Table

1 234 5 6 7...18

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