(Limits are 100% tested at TA = 25ºC. Limits over the operating temperature range and relevant supply voltage range are guaranteed

by design and characterization. Specifications marked GBD are guaranteed by design and not production tested. Specifications to the

minimum and maximum operating temperature are guaranteed by design and are not production tested.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

VCC

(Note 1)

2.97

3.3

3.63

V

Supply Current

ICC

Standby

4

mA

Communicating/active (Note 2)

10

mA

CRYPTO FUNCTIONS

Computation Current

ICMP

(Note 3)

10

mA

Generate ECC Key Pair

tGKP

200

ms

Generate ECDSA Signature

tGES

130

ms

TRNG On-Demand Check

tODC

20

ms

EEPROM

Read Memory

tRM

30

ms

Write Memory

tWM

65

ms

Write State

tWS

15

ms

Write/Erase Cycles (Endurance)

NCY

TA = +85°C (Note 4)

100K

Data Retention

tDR

TA = +85°C (Note 5)

10

years

I2C SCL AND SDA PINS (Note 6)

Low-Level Input Voltage

VIL

-0.3

0.3 ×

VCC

V

High-Level Input Voltage

VIH

0.85 ×

VCC

VCC +

0.3V

V

Hysteresis of Schmitt Trigger

Inputs

VHYS

(Note 2)

0.1 ×

VCC

V

Low-Level Output Voltage at

4mA Sink Current

VOL

(Note 7)

0.4

V

Output Fall Time from VIH(MIN)

to VIL(MAX) with a Bus Capaci-

tance from 10pF to 400pF

tOF

(Note 2)

180

ns

Input Current with an Input

Voltage Between 0.1VCCmax

and 0.9VCCmax

II

(Note 2)

-1

+1

µA

Electrical Characteristics

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DS28C39

DeepCover Secure ECDSA Bidirectional

Authenticator with ChipDNA PUF Protection