DS2465_13 datasheet(3/30 Pages) MAXIM

Part #	DS2465

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

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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Maxim Integrated

DS2465

DeepCover Secure Authenticator with

SHA-256 Coprocessor and 1-Wire Master Function

ABRIDGED DATA SHEET

ELECTRICAL CHARACTERISTICS (continued)

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Read Sample Time

tMSR

Standard

11.4

12

13.1

F

s

Overdrive

1.4

1.5

1.64

Write-0 Low Time

tW0L

Standard

-5%

See

Table 6

+9%

F

s

Overdrive

Write-0 Recovery Time

tREC0

Standard and overdrive

-5%

See

Table 6

+9%

F

s

1-Wire Time Slot

tslot

Standard and overdrive

Equal to tW0L + tREC0

F

s

SHA-256 ENGINE

Computation Current

ICSHA

Refer to the full data sheet.

mA

Computation Time

tCSHA

ms

EEPROM

Programming Current

IPROG

(Notes 3, 7)

2

mA

Programming Time for a 32-Bit

Segment

tPROG

10

ms

Write/Erase Cycling Endurance

NCY

TA = +85NC (Notes 8, 9)

100k

—

Data Retention

tDR

TA = +85NC (Notes 10, 11)

10

Years

SLPZ PIN

Low Level Input Voltage

VIL

-0.5

0.3 O VCC

V

High Level Input Voltage

VIH

0.7 O

VCC

VCC +

0.5V

V

Input Leakage Current

II

Pin at 3.63V (Note 3)

0.1

F

A

Wake-Up Time from Sleep Mode

tSWUP

(Note 12)

200

F

s

I2C SCL AND SDA PINS (Note 13)

Low Level Input Voltage

VIL

-0.5

0.3 O VCC

V

High Level Input Voltage

VIH

0.7 O

VCC

VCC(MAX)

+ 0.5V

V

Hysteresis of Schmitt Trigger

Inputs

VHYS

(Note 3)

0.05 O

VCC

V

Low Level Output Voltage at 3mA

Sink Current

VOL

0.4

V

Output Fall Time from VIH(MIN) to

VIL(MAX) with a Bus Capacitance

from 10pF to 400pF

tOF

(Note 3)

60

250

ns

Pulse Width of Spikes That Are

Suppressed by the Input Filter

tSP

(Note 3)

50

ns

Input Current with an Input

Voltage Between 0.1VCC(MAX)

and 0.9VCC(MAX)

II

(Notes 3, 14)

-10

+10

F

A

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DS2465 Datasheet(PDF) 3 Page - Maxim Integrated Products

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