DS2422 Просмотр технического описания (PDF) - Maxim Integrated

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DS2422

1-Wire Temperature/Datalogger with 8KB Datalog Memory

Maxim Integrated 

PARAMETER

I/O Pin, 1-Wire Write

SYMBOL

Write-0 Low Time

(Notes 1, 14)

tW0L

Write-1 Low Time

(Notes 1, 14)

tW1L

I/O Pin, 1-Wire Read

Read Low Time

(Notes 1, 15)

tRL

Read Sample Time

(Notes 1, 15)

tMSR

ALARM Output Pin

Output Low Voltage

VOL

Pin Leakage Current

ILP

CNVST, SCLK Output Pins

Output Low Voltage

VOL

Output High Voltage

PUMP_ONZ Output Pin

Output Low Voltage

Output High Voltage

SDATA Input Pin

Input High Voltage

Input Low Voltage

Pin Leakage Current

Serial Interface Timing

CLK Period

PUMP_ONZ Fall to

CNVST Rise

CNVST Pulse Width

CNVST Fall to SCLK High

(First Clock)

SCLK Period

SDATA Setup Time

SDATA Hold Time

Real-Time Clock

Accuracy

Frequency Deviation

Temperature Converter

Operating Range

Conversion Time (Note 4)

Thermal Response Time

Constant (Notes 4, 17)

Conversion Error

(Notes 4, 18)

Conversion Current

VOH

VOL

VOH

VIH

VIL

ILP

tRING

tSP

tCPW

tSCH

tSCP

tSDS

tSDH

F

TTC

tCONV

RESP



ICONV

CONDITIONS

Standard speed

Overdrive speed, VPUP > 4.5V

(Note 12)

Overdrive speed (Note 12)

Standard speed

Overdrive speed

Standard speed

Overdrive speed

Standard speed

Overdrive speed

Sink current 4mA

ALARM pin at 6V

VPAD = 5V, IL = 3mA

VPAD = 3V, IL = 3mA

VPAD = 5V, IL = 3mA

VPAD = 3V, IL = 3mA

VBAT = 3.6V, IL = 2mA

VBAT = 2.0V, IL = 2mA

VBAT = 3.6V, IL = 0.5mA

VBAT = 2.0V, IL = 0.5mA

VBAT = 3.6V

VBAT = 2.0V

VBAT = 3.6V

VBAT = 2.0V

SDATA pin at 5.5V

Power-on default (Notes 4, 19)

(Note 4)

(Note 4)

50% duty cycle (Note 4)

(Note 4)

(Note 4)

+25°C (Note 16)

-40°C to +85°C (Note 16)

3V at VBAT

8-bit mode

16-bit mode (11 bits)

SO package

+10°C to +60°C

-40°C to +85°C

(Note 4)

DS2422

MIN

TYP

MAX UNITS

60

120

6

12

µs

7.5

12

5

1

15

1.95

µs

5

1

tRL + 

tRL + 

15 - 

1.95 - 

µs

15

1.95

µs

0.7

V

6

µA

0.3

0.3

V

4

2

V

0.4

0.4

V

2.5

1.4

V

2.5

1.4

V

0.4

0.4

V

10

µA

0.5

1

9

µs

3.5

4

4.5

ms

70

140

1260

µs

8

16

144

µs

1

2

18

µs

75

ns

3

ns

-2

-300

+2

min./

month

+60

PPM

-40

+85

°C

30

50

75

240

400

600

ms

95

s

See Temperature Accuracy

Graphs

°C

180

350

550

µA

3 of 49

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