DS1990 Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated

Номер в каталоге

Компоненты Описание

производитель

DS1990

Serial Number iButton™

Dallas Semiconductor -> Maxim Integrated 

ABSOLUTE MAXIMUM RATINGS*

Voltage on any Pin Relative to Ground

Operating Temperature

Storage Temperature

-0.5V to +7.0V

-40°C to +85°C

-55°C to +125°C

DS1990A

∗ This is a stress rating only and functional operation of the device at these or any other conditions

above those indicated in the operation sections of this specification is not implied. Exposure to

absolute maximum rating conditions for extended periods of time may affect reliability.

DC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL MIN

Logic 1

VIH

2.2

Logic 0

VOL

-0.3

Output Logic Low @ 4 mA

VOL

Output Logic High

VOH

Input Load Current

IL

Operating Charge

QOP

CAPACITANCE

PARAMETER

I/O (1-Wire)

SYMBOL MIN

CIN/OUT

AC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL MIN

Time Slot

Write 1 Low Time

Write 0 Low Time

Read Data Valid

tSLOT

60

tLOW1

1

tLOW0

60

tRDV

Release Time

tRELEASE

0

Read Data Setup

Recovery Time

Reset Time High

Reset Time Low

Presence Detect High

tSU

tREC

1

tRSTH

480

tRSTL

480

tPDH

15

Presence Detect Low

tPDL

60

(VPUP=2.8V to 6.0V; -40°C to +85°C)

TYP MAX UNITS NOTES

VCC +0.3

V

1,6

+0.8

V

1

0.4

V

1

VPUP

6.0

V

1,2

5

µA

3

30

nC

7,8

(TA = 25°C)

TYP MAX UNITS NOTES

100

800

pF

9

(VPUP=2.8V to 6.0V; -40°C to +85°C)

TYP MAX UNITS NOTES

120

µs

15

µs

120

µs

exactly 15

µs

15

45

µs

1

µs

5

µs

µs

4

µs

10

60

µs

240

µs

9 of 10

Share Link: