ST7LITE0X Datasheet, PDF (7/125 Pages) STMicroelectronics – 8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI

ST7LITE0x, ST7LITESx
PIN DESCRIPTION (Cont’d)
Legend / Abbreviations for Table 1:
Type:
I = input, O = output, S = supply
In/Output level: C= CMOS 0.15V_DD/0.85V_DD with input trigger
C_T= CMOS 0.3V_DD/0.7V_DD with input trigger
Output level: HS = 20mA high sink (on N-buffer only)
Port and control configuration:
– Input:
float = floating, wpu = weak pull-up, int = interrupt ¹⁾, ana = analog
– Output: OD = open drain, PP = push-pull
Table 1. Device Pin Description
Pin
n°
Pin Name
Level
Port / Control
Input
Output ^Main
Function
(after reset)
Alternate Function
1 V_SS
2 V_DD
3 RESET
S
S
I/O C_T
4 PB0/AIN0/SS
I/O C_T
5 PB1/AIN1/SCK I/O C_T
6 PB2/AIN2/MISO I/O C_T
7 PB3/AIN3/MOSI I/O C_T
8 PB4/AIN4/CLKIN I/O C_T
9 PA7
I/O C_T
10
PA6 /MCO/
ICCCLK
I/O C_T
X
X ei3
XX
XX
X ei2
XX
X ei1
XX
Ground
Main power supply
X
Top priority non maskable interrupt (active low)
X X X Port B0
X X X Port B1
X X X Port B2
X X X Port B3
X X X Port B4
ADC Analog Input 0 or SPI Slave
Select (active low)
Caution: No negative current in-
jection allowed on this pin. For
details, refer to section 13.2.2 on
page 83
ADC Analog Input 1 or SPI Clock
Caution: No negative current in-
jection allowed on this pin. For
details, refer to section 13.2.2 on
page 83
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
X X Port A7
X X Port A6
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
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