AT88SC0104CA_11 ATMEL [ATMEL Corporation], AT88SC0104CA_11 Datasheet - Page 62

• Manufacturer Part Number: AT88SC0104CA_11
• Description: Atmel CryptoMemory Specification Datasheet
• Manufacturer: ATMEL [ATMEL Corporation]

13.
13.1
13.2
Figure 12-4. Start and Stop Definition
Figure 12-5. Output Acknowledge
DATA OUT
POR and Tamper Conditions
The CryptoMemory device family incorporates several tamper detection circuits to prohibit operation outside the limits of
reliable circuit operation.
Power On Reset (POR) Delay
Anytime the device is reset either on initial power up or by a tamper detection circuit, there is a time delay from when normal
conditions are restored to when the device may be operated. During this reset sequence all security flags within the device are
reset to their initial values..
Tamper Detection
CryptoMemory contains tamper detection sensors to detect operation outside of specified limits. These sensors monitor the
internal supply voltage and clock frequency. An additional sensor detects high intensity light attacks. The die is disabled and
will not function when tampering is detected.
DATA IN
SCL
SDA
SCL
START
S
T
A
R
T
1
Atmel AT88SC0104CA/0204CA/0404CA/0808CA [Datasheet]
STOP
8
A
C
K
N
O
W
9
L
E
D
G
E
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