DS1621 datasheet(14/16 Pages) DALLAS

номер детали	DS1621

подробное описание детали	Digital Thermometer and Thermostat

PDF	16 Pages

Scroll/Zoom	100%

производитель	DALLAS [Dallas Semiconductor]

домашняя страница	https://www.maximintegrated.com/en.html

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14 / 16 page

DS1621

14 of 16

102299

AC ELECTRICAL CHARACTERISTICS

(-55°C to +125°C; VDD=2.7V to 5.5V)

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

NOTES

Temperature

Conversion Time

TTC

0.4

NV Write Cycle

Time

tWR

0°C to 70°C

SCL Clock

Frequency

fSCL

Fast Mode

Standard Mode

400

100

KHz

Bus Free Time

Between a STOP

and START

Condition

tBUF

Fast Mode

Standard Mode

1.3

4.7

µs

Hold Time

(Repeated) START

Condition

tHD:STA

Fast Mode

Standard Mode

0.6

4.0

µs

Low Period of SCL

Clock

TLOW

Fast Mode

Standard Mode

1.3

4.7

µs

High Period of SCL

Clock

THIGH

Fast Mode

Standard Mode

0.6

4.0

µs

Setup Time for a

Repeated START

Condition

tSU:STA

Fast Mode

Standard Mode

0.6

4.7

µs

Data Hold Time

tHD:DAT

Fast Mode

Standard Mode

0.9

µs

6, 7

Data Setup Time

tSU:DAT

Fast Mode

Standard Mode

100

250

Rise Time of Both

SDA and SCL

Signals

Fast Mode

Standard Mode

20+0.1CB

300

1000

Fall Time of both

SDA and SCL

Signals

Fast Mode

Standard Mode

20+0.1CB

300

Setup time for

STOP Condition

tSU:STO

Fast Mode

Standard Mode

0.6

4.0

µs

Capacitative Load

for each Bus Line

400

All values referred to VIH=0.9 VDD and VIL=0.1 VDD.

AC ELECTRICAL CHARACTERISTICS

(-55°C to +125°C; VDD=2.7V to 5.5V)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Input Capacitance

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