Datasheet > DS28EC20

DS28EC20

更新时间： 2023-12-20 18:45:30

品牌	Logo	应用领域
亚德诺 - ADI		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
27页	588K
描述
20Kb 1-Wire EEPROM

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DS28EC20 数据手册

DS28EC20: 20Kb 1-Wire EEPROM

ABSOLUTE MAXIMUM RATINGS

I/O Voltage to GND

I/O Sink Current

-0.5V, +6V

20mA

Operating Temperature Range

Junction Temperature

-40°C to +85°C

+150°C

Storage Temperature Range

Lead Temperature (soldering, 10s)

Soldering Temperature (reflow)

TO-92

-55°C to +125°C

+300°C

+250°C

+260°C

TSOC, TDFN

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

5.0V SUPPLY ELECTRICAL CHARACTERISTICS

(V_PUP= 4V to 5.25, T_A= -40°C to +85°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

I/O PIN GENERAL DATA

1-Wire Pullup Resistance

Input Capacitance

(Notes 2, 3)

(Notes 4, 5)

R_PUP

C_IO

I_L

0.3

2.2

3.5

kΩ

µA

2000

Input Load Current

I/O pin at V_PUP

(Notes 5, 6, 7)

(Notes 2, 8)

0.05

1.6

High-to-Low Switching

Threshold

V_PUP

1.8

V_TL

V_IL

Input Low Voltage

0.5

Low-to-High Switching

Threshold

V_PUP

1.1

V_TH

(Notes 5, 6, 9)

2.5

Switching Hysteresis

Output Low Voltage

V_HY

V_OL

(Notes 5, 6, 10)

At 4mA (Note 11)

Standard speed

Overdrive speed

Standard speed

Overdrive speed

Standard speed

Overdrive speed

0.30

1.30

0.20

Recovery Time

(Notes 2, 12)

t_REC

t_REH

t_SLOT

µs

0.5

5.0

Rising-Edge Hold-off Time

(Notes 5, 13)

Not applicable (0)

Timeslot Duration

(Notes 2, 14)

I/O PIN, 1-Wire RESET, PRESENCE DETECT CYCLE

Standard speed

Overdrive speed

Standard speed

Overdrive speed

Standard speed

Overdrive speed

Standard speed

Overdrive speed

480

640

Reset-Low Time (Note 2)

t_RSTL

t_PDH

t_PDL

µs

Presence-Detect High

Time

240

Presence-Detect Low

Time

Presence-Detect Sample

Time (Notes 2, 15)

t_MSP

I/O PIN, 1-Wire WRITE

Standard speed

Overdrive speed

Standard speed

Overdrive speed

120

Write-0 Low Time

(Notes 2, 16, 17)

t_W0L

t_W1L

µs

15.5

Write-1 Low Time

(Notes 2, 17)

I/O PIN, 1-Wire READ

Standard speed

Overdrive speed

Standard speed

Overdrive speed

15 - δ

2 - δ

Read-Low Time

(Notes 2, 18)

t_RL

µs

0.800

t_RL+ δ

Read-Sample Time

(Notes 2, 18)

t_MSR

2.27

2 of 27

123 4 5 6 7...27

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