Datasheet > DS4000A0/WBGA

DS4000A0/WBGA

更新时间： 2024-01-08 23:46:15

品牌	Logo	应用领域
达拉斯 - DALLAS		/
页数	文件大小	规格书
15页	171K
描述
Oscillator,

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技术参数
数据手册

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DS4000A0/WBGA 技术参数

生命周期：	Transferred	Reach Compliance Code：	unknown
风险等级：	5.54	Base Number Matches：	1

DS4000A0/WBGA 数据手册

DS4000

AC ELECTRICAL CHARACTERISTICS: 2-WIRE SERIAL INTERFACE

(V_CC= 4.75 to 5.25V, T_A= -40°C to +85°C)

PARAMETER

SYMBOL

CONDITION

Fast mode

MIN

TYP MAX

UNITS

400

100

SCL Clock Frequency

f_SCL

kHz

Standard mode

Fast mode

1.3

4.7

0.6

Bus Free Time Between

a STOP and START

Condition

t_BUF

µs

Standard mode

Fast mode (Note 7)

Hold Time (Repeated)

START Condition

t_HD:STA

µs

Standard mode (Note 7)

Fast mode

4.0

1.3

Low Period of SCL

Clock

t_LOW

Standard mode

4.7

Fast mode

0.6

4.0

0.6

High Period of SCL

Clock

t_HIGH

Standard mode

Fast mode

Setup Time for a

Repeated START

Condition

t_SU:STA

t_HD:DAT

t_SU:DAT

µs

Standard mode

4.7

Fast mode (Note 8)

Standard mode (Note 8)

0.9

Data Hold Time

Data Setup Time

Fast mode (Note 9)

100

250

Standard mode (Note 9)

Fast mode (Note 9)

Standard mode (Note 9)

Fast mode (Note 10)

Standard mode (Note 10)

Fast mode

20 + 0.1C_B

0.6

300

1000

300

Rise Time of Both SDA

and SCL

t_R

t_F

µs

Fall Time of Both SDA

and SCL

1000

Setup Time for STOP

Condition

t_SU:STO

Standard mode

4.0

Capacitive Load for

Each Bus Line

C_B

C_I

Note 10

400

Input Capacitance

Note 7: After this period, the first clock pulse is generated.

Note 8: The maximum t_HD:DAThas only to be met if the device does not stretch the LOW period (t_LOW) of the SCL signal.

Note 9: A fast-mode device can be used in a standard mode system, but the requirement t_SU:DAT>250ns must then be met. This is automatically

the case if the device does not stretch the LOW period of the SCL signal. If such a device does stretch the LOW period of the SCL

signal, it must output the next data bit to the SDA line t_RMAX+ t_SU:DAT(1000 + 250 = 1250ns) before the SCL line is released.

Note 10: C_B: Total capacitance of one bus line in pF.

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