CD00001237 Datasheet, PDF (7/105 Pages) STMicroelectronics – 8-bit MCUs with A/D converter

ST6215C ST6225C
2 PIN DESCRIPTION
Figure 2. 28-Pin Package Pinout
V_DD
TIMER
OSCin
OSCout
NMI
Ain/PC7
Ain/PC6
Ain/PC5
Ain/PC4
V_PP
RESET
Ain/PB7
Ain/PB6
Ain/PB5
1
28 ^VSS
2
27 ^{PA0/20mA Sink}
3
26 ^{PA1/20mA Sink}
4
25 PA2/20mA Sink
5
it1 ^{24 PA3/20mA Sink}
6
23 PA4/Ain
7
it2
8
22 PA5/Ain
21 PA6/Ain
9
20 PA7/Ain
10
19 PB0/Ain
11
18 PB1/Ain
12
it2 17 PB2/Ain
13 _it2
16 ^PB3/Ain
14
15 PB4/Ain
itX associated interrupt vector
Table 1. Device Pin Description
Pin n°
Pin Name
Main Function
(after Reset)
Alternate Function
1 V_DD
2 TIMER
3 OSCin
4 OSCout
5 NMI
6 PC7/Ain
7 PC6/Ain
8 PC5/Ain
9 PC4/Ain
10 V_PP
11 RESET
12 PB7/Ain
13 PB6/Ain
S Main power supply
I/O Timer input or output
I External clock input or resonator oscillator inverter input
O Resonator oscillator inverter output or resistor input for RC oscillator
I Non maskable interrupt (falling edge sensitive)
I/O Pin C7 (IPU)
Analog input
I/O Pin C6 (IPU)
Analog input
I/O Pin C5 (IPU)
Analog input
I/O Pin C4 (IPU)
Analog input
Must be held at Vss for normal operation, if a 12.5V level is applied to the pin
during the reset phase, the device enters EPROM programming mode.
I/O Top priority non maskable interrupt (active low)
I/O Pin B7 (IPU)
Analog input
I/O Pin B6 (IPU)
Analog input
7/105
5