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SAM4C32-EK [USER GUIDE]
Atmel-11253A-ATARM-SAM4C32-EK-UserGuide_17-Sep-14
21
3.9.3
Temperature Sensor
The Atmel AT30TS75 temperature sensor converts temperatures from -40°C to +125°C to a digital word and
provides a typical accuracy of ±0.5°C over the operating temperature range of 0°C to +85°C. The device is factory
calibrated and requires no external components to help provide a cost effective solution. To reduce current
consumption and save power, the AT30TS75 features a shutdown mode that turns off all internal circuitry except
for the internal power-on reset and serial interface circuits. In addition, the device features a power saving one-
shot mode that allows the device to make a temperature measurement, update the temperature register and then
return to shutdown mode.
Device slave address byte: 0x48.
Figure 3-21.
Temperature Sensor Schematic
3.10 CryptoAuthentication (
optional
)
The Atmel ATSHA204 is a member of the Atmel CryptoAuthentication family of high-security hardware
authentication devices.
It’s flexible command set allows use in a number of applications, such as Anti-counterfeiting, Protection for
Firmware or Media, Session Key Exchange, Secure Data Storage or User Password Checking.
Device slave address byte: 0xC9.
Figure 3-22.
CryptoAuthentication Schematic
(SCL)
(SDA)
ADDR:0X48
PA24
PA25
PA26
VDDMAIN
VDDMAIN
R55
0R
R54 10K
C65
100nF
U6
AT30TS75
A0
7
A1
6
A2
5
ALERT
3
SDA
1
SCL
2
GND
4
VCC
8
R53
4.7K/DNP
Do Not Populate
ADDR: 0XC9
(SCL)
(SDA)
PA25
PA24
VDDMAIN
C63
100nF
U5
ATSHA204-SH
NC1
1
NC2
2
NC3
3
GND
4
SDA
5
SCL
6
NC4
7
VCC
8
Do Not Populate
DNP