Datasheet

DocID8349 Rev 7 17/170
ST7LITE20F2 ST7LITE25F2 ST7LITE29F2 Pin description
169
15 10 PA3/ATPWM1 I/O C
T
HS X
ei0
-XXPort A3 Auto-reload timer PWM1
16 11 PA2/ATPWM0 I/O C
T
HS X -XXPort A2 Auto-reload timer PWM0
17 12 PA1/ATIC I/O C
T
HS X -XXPort A1 Auto-reload timer input capture
18 13 PA0/LTIC I/O C
T
HS X -XXPort A0 Lite timer input capture
19 14 OSC2 O −−- - - - - - Resonator oscillator inverter output
20 15 OSC1/CLKIN I −−---- - -
Resonator oscillator inverter input or external
clock input
1. No negative current injection allowed on this pin. For details (refer toTable 58: Current characteristics).
2. During normal operation this pin must be pulled- up, internally or externally (external pull-up of 10k mandatory in noisy
environment). This is to avoid entering ICC mode unexpectedly during a reset. In the application, even if the pin is
configured as output, any reset will put it back in input pull-up.
Table 2. Device pin description (continued)
Pin
No.
Pin name
Type
Level Port / Control
Main
function
(after
reset)
Alternate function
SO20
DIP20
Input
Output
Input Output
float
wpu
int
ana
OD PP