AT88SA10HS-SH-T(2010) データシートの表示（PDF） - Atmel Corporation

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AT88SA10HS-SH-T
(Rev.:2010)

Atmel CryptoAuthentication Host Security Chip

Atmel Corporation 

Table 3-1. AC Parameters

Parameter

Symbol

Direction

Min Typ

Wake Low

Duration

t WLO

To Atmel

60

AT88SA10HS

Wake Delay to t WHI

Data Comm.

To Atmel

2.5

AT88SA10HS

Start pulse

duration

t START

Zero

t ZHI

transmission

high pulse

Zero

t ZLO

transmission

low pulse

Bit time‡

t BIT

To Atmel

4.1 4.34

AT88SA10HS

From Atmel

4.6 6.0

AT88SA10HS

To Atmel

4.1 4.34

AT88SA10HS

From Atmel

4.6 6.0

AT88SA10HS

To Atmel

4.1 4.34

AT88SA10HS

From Atmel

4.6 6.0

AT88SA10HS

To Atmel

37 39

AT88SA10HS

From Atmel

41 54

AT88SA10HS

Turn around t TURNAROUND From Atmel

28 60

delay

AT88SA10HS

To Atmel

15µs

AT88SA10HS

High side

t HIGNORE_A To Atmel

45

glitch filter @

AT88SA10HS

active

Low side glitch t LIGNORE_A To Atmel

45

filter @ active

AT88SA10HS

Low side glitch t LIGNORE_S To Atmel

2

filter @ sleep

AT88SA10HS

IO Timeout

t TIMEOUT

To Atmel

45 65

AT88SA10HS

Max

-

45

4.56

Unit Notes

µs Signal can be stable in either high or low

levels during extended sleep intervals

ms Signal should be stable high for this entire

duration. tWHI must not exceed tTIMEOUT or the

chip will transition to sleep

µs

8.6 µs

4.56 µs

8.6 µs

4.56 µs

8.6 µs

-

µs If the bit time exceeds tTIMEOUT then Atmel

AT88SA10HS will enter sleep mode and the

Wake token must be resent

78 µs

95

46ms

85

µs Atmel AT88SA10HS will initiate the first low

going transition after this time interval

following the end of the Transmit flag

After Atmel AT88SA10HS transmits the last

bit of a block, system must wait this interval

before sending the first bit of a flag

ns Pulses shorter than this in width will be

ignored by the chip, regardless of its state

when active

ns Pulses shorter than this in width will be

ignored by the chip, regardless of its state

when active

µs Pulses shorter than this in width will be

ignored by the chip when in sleep mode

ms Refer to Section 4.4.1

Table 3-2. AC Parameters continued

Parameter

Symbol

Direction

Min Typ

Watchdog

t WATCHDOG To Atmel

3

4

reset

AT88SA10HS

Pause Length t PAUSE

-

18 25

Max Unit Notes

5.7 s Max. time from Wake until chip is forced into

sleep mode. See Section 4.5

32 ms Duration during which the chip will ignore IO

on the bus. See PauseShort command,

Section 5.7

6 Atmel AT88SA10HS Host Authentication Chip

8595F–SMEM–8/10

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