TC1767 Datasheet, PDF (100/126 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1767
5.2.4 Oscillator Pins
Electrical Parameters
Table 15 Oscillator Pins Characteristics (Operating Conditions apply)
Parameter
Symbol
Min.
Values
Typ. Max.
Unit Note /
Test Condition
Frequency range
f_OSC CC 8
– 25
MHz External Crystal
Mode selected
Input low voltage at V_ILX SR -0.2
–
XTAL1¹⁾
Input high voltage at V_IHX SR 0.7 × –
XTAL1¹⁾
V_DDOSC3
Input current at
I_IX1 CC –
–
XTAL1
0.3 × V
V_DDOSC3
V_DDOSC3 V
+ 0.2
±25
µA
–
–
0 V < V_IN < V_DDOSC3
1) If the XTAL1 pin is driven by a crystal, reaching a minimum amplitude (peak-to-peak) of 0.3 × V_DDOSC3 is
sufficient.
Note: It is strongly recommended to measure the oscillation allowance (negative
resistance) in the final target system (layout) to determine the optimal parameters
for the oscillator operation. Refer to the limits specified by the crystal supplier.
5.2.5 Temperature Sensor
Table 16 Temperature Sensor Characteristics (Operating Conditions apply)
Parameter
Symbol
Values
Unit Note /
Min. Typ. Max.
Test Condition
Temperature sensor range T_SR SR -40
150 °C Junction
temperature
Temperature sensor
measurement time
t_TSMT SR –
– 100 µs –
Start-up time after reset
Sensor accuracy
t_TSST SR –
T_TSA CC –
– 10 µs –
– ±6 °C Calibrated
Data Sheet
96
V1.3, 2009-09