ST7-STICK45 STMICROELECTRONICS [STMicroelectronics], ST7-STICK45 Datasheet - Page 7

• Manufacturer Part Number: ST7-STICK45
• Description: 8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, timers, SPI
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

PIN DESCRIPTION (Cont’d)
Legend / Abbreviations for
Type:
In/Output level: C= CMOS 0.15V
Output level:
Port and control configuration:
Table 1. Device Pin Description
– Input:
– Output:
Pin n°
18
19
20
10 10
11 11
12 12 PA4
14 13 PA3
1
6
5
7
8
9
1
2
3
4
5
6
7
8
9
V
V
RESET
PB0/AIN0/SS
PB1/AIN1/SCK
PB2/AIN2/MISO
PB3/AIN3/MOSI
PB4/AIN4/CLKIN
PA7
PA6 /MCO/
ICCCLK
PA5/
ICCDATA
SS
DD
Pin Name
I = input, O = output, S = supply
C
HS = 20mA high sink (on N-buffer only)
float = floating, wpu = weak pull-up, int = interrupt
OD = open drain, PP = push-pull
T
= CMOS 0.3V
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O C
I/O C
I/O C
S
S
Table
Level
T
T
T
C
C
C
C
C
C
C
C
DD
DD
T
T
T
T
T
T
T
T
HS
HS
HS
1:
/0.7V
/0.85V
X
X
X
X
X
X
X
X
X
X
DD
DD
X
X
X
X
X
X
X
X
Port / Control
Input
with input trigger
ei3
ei2
ei1
with input trigger
X
X
X
X
X
Output
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
(after reset)
Ground
Main power supply
Top priority non maskable interrupt (active low)
Port B0
Port B1
Port B2
Port B3
Port B4
Port A7
Port A6
Port A5
Port A4
Port A3
Function
Main
1)
, ana = analog
ST7LITE0xY0, ST7LITESxY0
ADC Analog Input 0 or SPI Slave
Select (active low)
ADC Analog Input 1 or SPI Clock
Caution: No negative current in-
jection allowed on this pin. For
details, refer to
page 82
ADC Analog Input 2 or SPI Mas-
ter In/ Slave Out Data
ADC Analog Input 3 or SPI Mas-
ter Out / Slave In Data
ADC Analog Input 4 or External
clock input
Main Clock Output/In Circuit
Communication Clock.
Caution: During normal opera-
tion this pin must be pulled- up,
internally or externally (external
pull-up of 10k mandatory in noisy
environment). This is to avoid en-
tering 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
In Circuit Communication Data
Alternate Function
section 13.2.2 on
7/124
1