ST7MC1XX Datasheet, PDF (265/309 Pages) STMicroelectronics – 8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI™

ST7MC1xx/ST7MC2xx
I/O PORT PIN CHARACTERISTICS (Cont’d)
Figure 138. Two typical Applications with
unused I/O Pin
V_DD
ST7MC
10kΩ
UNUSED I/O PORT
10kΩ
UNUSED I/O PORT
ST7MC
Note: I/O can be left unconnected if it is configured as output
(0 or 1) by the software. This has the advantage of greater EMC
robustness and lower cost.
Figure 139. Typical I_PU vs. V_DD with V_IN=V_SS
Temperature
(-45 ºC)
Temperature
90
(25 ºC)
Temperature
80
(90 ºC)
70
Temperature
60
(130 ºC)
50
40
30
20
10
0
3.5
4
4.5
5
5.5
VDD (V)
Figure 140. Typical R_PU vs. V_DD with V_IN=V_SS
300
250
200
150
100
50
0
3.5
Temperature
(-45 ºC)
Temperature
(25 ºC)
Temperature
(90 ºC)
Temperature
(130 ºC)
4
4.5
5
5.5
VDD (V)
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