AT88SA100S_11 Datasheet, PDF (8/24 Pages) ATMEL Corporation – Atmel CryptoAuthentication Battery Authentication Chip

5. DC Parameters
Table 5-1. DC Parameters
Parameter
Operating temperature
Power supply voltage
Fuse burning voltage
Active power supply
current
Sleep Power Supply
Current @ -40 to 55 C
Symbol
T_A
V_CC
V_BURN
I_CC
I _SLEEP
Sleep power supply
current @ 85 c
I _SLEEP
Input low voltage @
V_CC = 5.25 v
Input low voltage @
V_CC = 2.7 v
Input high voltage @
V_CC = 5.25 v
Input high voltage @
V_CC = 2.7 v
Input low voltage when
active
Input high voltage when
active
Output low voltage
Maximum input voltage
V_IL
V_IL
V_IH
V_IH
V_IL
V_IH
V_OL
V_MAX
Min
-40
2.7
3.0
Typ Max
85
5.25
5.25
-
6
Unit Notes
°C
V
V Voltage applied to V_CC pin. See Section 6.3
mA
150
nA When chip is in sleep mode, V_CC = 5.25 V,
Vsig = 0.0 to 0.3 V, or
Vsig = V_CC -0.3 V to V_CC
1
µA When chip is in sleep mode, VCC = 5.25 V,
Vsig = 0.0 to 0.3 V, or
Vsig = V_CC -0.3 V to V_cc
-0.5
0.75
V Voltage levels for Wake token when chip is in
sleep mode
-0.5
0.5
V Voltage levels for Wake token when chip is in
sleep mode
1.5
5.25
V Voltage levels for Wake token when chip is in
sleep mode
1.25
3.0
V Voltage levels for Wake token when chip is in
sleep mode
-0.5
0.5
V When chip is in active mode,
V_CC = 2.7 – 5.25 V
1.2
5.25
V When chip is in active mode,
V_CC = 2.7 – 5.25 V
0.4
V When chip is in active mode,
V_CC = 2.7 – 5.25 V
5.25
V
5.1 IO Flags
The host system is always the bus master, so before any IO transaction, the system must first send an 8-bit flag to the chip to
indicate the IO operation that is to be performed, as follows:
Value Name
Meaning
0x77
Command
After this flag, the system starts sending a command block to the chip. The first bit of the block can
follow immediately after the last bit of the flag.
0x88
Transmit
After a turn-around delay, the chip will start transmitting the response for a previously transmitted
command block.
0xCC Sleep
Upon receipt of a sleep flag, the chip will enter a low power mode until the next Wake token is
received.
All other values are reserved and will be ignored.
Atmel AT88SA100S [DATASHEET]
8
8558F−CRYPTO−9/11