DS2465PT(2013) 查看數據表（PDF） - Maxim Integrated

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DS2465PT
(Rev.:2013)

DeepCover Secure Authenticator with SHA-256 Coprocessor and 1-Wire Master Function

Maxim Integrated 

ABRIDGED DATA SHEET

DS2465

DeepCover Secure Authenticator with

SHA-256 Coprocessor and 1-Wire Master Function

ABSOLUTE MAXIMUM RATINGS

Voltage Range on Any Pin Relative to GND.........-0.5V to +4.0V

Maximum Current into Any Pin............................................20mA

Operating Temperature Range .......................... -40NC to +85NC

Junction Temperature......................................................+150NC

Storage Temperature Range............................. -55NC to +125NC

Lead Temperature (soldering, 10s).................................+300NC

Soldering Temperature (reflow) ......................................+260NC

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

tion 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.

ELECTRICAL CHARACTERISTICS

(TA = -40NC to +85NC, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

Supply Voltage

Supply Current

Power-On Reset Trip Point

VCC

ICC

VPOR

(Note 2)

Sleep mode (SLPZ pin low), VCC = 3.63V

(Note 3)

1-Wire Input High

VIH1

1-Wire Input Low

1-Wire Weak Pullup Resistor

(Notes 3, 4)

1-Wire Output Low

Active Pullup On Threshold

Active Pullup On Time

(Notes 3, 5)

Active Pullup Impedance

1-Wire Output Fall Time (Note 3)

IO PIN: 1-Wire TIMING (Note 6)

Reset Low Time

Reset High Time

Presence-Detect Sample Time

Sampling for Short and Interrupt

Write-1/Read Low Time

VIL1

RWPU

VOL1

VIAPO

tAPU

RAPU

tF

Low range

High range

VCC = 2.97V, 8mA sink current

(Note 3)

1-Wire time slot

1-Wire reset standard speed

1-Wire reset overdrive speed

VCC = 2.97V, 4mA load (Note 3)

Standard

Overdrive

tRSTL

tRSTH

tMSP

tSI

tW1L

Standard

Overdrive

Standard and overdrive

Standard

Overdrive

Standard

Overdrive

Standard

Overdrive

MIN TYP MAX

2.97 3.3

3.63

750

0.5

1.0

1.0

1.4

0.6 O

VCC

375 500

0.2 O

VCC

750

750 1000 1350

0.25

0.95

1.2

Equal to tREC0

2.375 2.5

2.625

0.475 0.5

0.525

60

0.25

1

0.05

0.2

-5%

See

Table 6

+9%

Equal to tRSTL

-5%

See

Table 6

+9%

7.6

8

1.9

2

7.6

8

-5%

See

Table 6

8.72

2.18

8.72

+9%

UNITS

V

FA

V

V

V

I

V

Fs

I

Fs

Fs

Fs

Fs

Fs

Fs

Maxim Integrated

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