ATSHA204 datasheet(27/65 Pages) ATMEL

27 / 65 page

Atmel ATSHA204 [DATASHEET]

8740D

−CRYPTO−3/12

7.3

AC Parameters – All I/O Interfaces

Figure 7-1.

AC Timing Diagram – All I/O Interfaces

Wake

Noise

Suppression

Data Comm

WLO

WHI

LIGNORE

HIGNORE

Table 7-2.

AC Parameters – All I/O Interfaces

Parameter

Symbol

Direction

Min

Typ

Max

Unit

Notes

Wake Low

Duration

tWLO

To Crypto

Authentication

µs

SDA can be stable in either high or low

levels during extended sleep intervals.

Wake High

Delay to

Data Comm.

tWHI

To Crypto

Authentication

2.5

SDA should be stable high for this entire

duration.

High Side

Glitch Filter

@ Active

tHIGNORE_A

To Crypto

Authentication

(1)

Pulses shorter than this in width will be

ignored by the device, regardless of its

state when active.

Low Side

Glitch Filter

@ Active

tLIGNORE_A

To Crypto

Authentication

(1)

Pulses shorter than this in width will be

ignored by the device, regardless of its

state when active.

High Side

Glitch Filter

@ Sleep

tHIGNORE_S

To Crypto

Authentication

(1)

µs

Pulses shorter than this in width will be

ignored by the device when in sleep

mode.

Low Side

Glitch Filter

@ Sleep

tLIGNORE_S

To Crypto

Authentication

(1)

µs

Pulses shorter than this in width will be

ignored by the device when in sleep

mode.

Watchdog

Reset

tWATCHDOG

To Crypto

Authentication

0.7

1.3

1.7

Max. time from wake until device is

forced into sleep mode (See Section

8.1.6).

Note:

These parameters are guaranteed through characterization, but not tested.

ATSHA204 Datasheet(PDF) 27 Page - ATMEL Corporation

ATSHA204 Datasheet(HTML) 27 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

Datasheet Download

Link URL