DS1340 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated

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DS1340

I2C RTC with Trickle Charger

Dallas Semiconductor -> Maxim Integrated 

I2C RTC with Trickle Charger

ABSOLUTE MAXIMUM RATINGS

Voltage Range on VCC Pin Relative to Ground .....-0.3V to +6.0V

Voltage Range on SDA, SCL, and FT/OUT

Relative to Ground..................................-0.3V to (VCC + 0.3V)

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-55°C to +125°C

Soldering Temperature Range............................See IPC/JEDEC

J-STD-020 Specification

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

AC ELECTRICAL CHARACTERISTICS

(VCC = VCC MIN to VCC MAX, TA = -40°C to +85°C, unless otherwise noted.) (Note 1, Figure 1)

PARAMETER

SCL Clock Frequency

Bus Free Time Between STOP

and START Conditions

Hold Time (Repeated) START

Condition (Note 2)

Low Period of SCL Clock

High Period of SCL Clock

Data Hold Time (Notes 3, 4)

Data Setup Time (Note 5)

START Setup Time

Rise Time of SDA and SCL

Signals (Note 6)

Fall Time of SDA and SCL Signals

(Note 6)

Setup Time for STOP Condition

Capacitive Load for Each Bus

Line

I/O Capacitance (SCL, SDA)

Pulse Width of Spikes that Must

be Suppressed by the Input Filter

Oscillator Stop Flag (OSF) Delay

SYMBOL

fSCL

tBUF

tHD:STA

tLOW

tHIGH

tHD:DAT

tSU:DAT

tSU:STA

tR

tF

tSU:STO

CB

CI/O

tSP

tOSF

CONDITIONS

Standard mode

Fast mode

Standard mode

Fast mode

Standard mode

Fast mode

Standard mode

Fast mode

Standard mode

Fast mode

Standard mode

Fast mode

Standard mode

Fast mode

Standard mode

Fast mode

Standard mode

Fast mode

Standard mode

Fast mode

Standard mode

Fast mode

(Note 6)

Fast mode

(Note 7)

MIN TYP

0

100

4.7

1.3

4.0

0.6

4.7

1.3

4.0

0.6

0

0

250

100

4.7

0.6

20 + 0.1CB

20 + 0.1CB

20 + 0.1CB

20 + 0.1CB

4.7

0.6

10

30

100

MAX

100

400

UNITS

kHz

µs

µs

µs

µs

0.9

µs

0.9

ns

µs

1000

ns

300

300

ns

300

µs

400

pF

pF

ns

ms

2 _____________________________________________________________________

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