参数资料
型号: ST7FLITE19BF0B6
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP20
封装: 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-20
文件页数: 127/159页
文件大小: 2855K
代理商: ST7FLITE19BF0B6
ST7LITE1xB
7/159
PIN DESCRIPTION (Cont’d)
Legend / Abbreviations for Table 1:
Type:
I = input, O = output, S = supply
In/Output level: CT= CMOS 0.3VDD/0.7VDD 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, ana = analog
– Output:
OD = open drain, PP = push-pull
The RESET configuration of each pin is shown in bold which is valid as long as the device is in reset state.
Table 1. Device Pin Description
Pin No.
Pin Name
Type
Level
Port / Control
Main
Function
(after
reset)
Alternate Function
SO20/D
P
I20
QFN20
SO16/D
IP16
Input
Outpu
t
Input
Output
fl
oat
wpu
int
ana
OD
PP
1191
VSS
1)
S
Ground
2202
VDD
1)
S
Main power supply
3
1
3
RESET
I/O CT
X
X
Top priority non maskable interrupt (active low)
42
4
PB0/COMPIN+/
AIN0/SS
I/O
CT
X
ei3
XX
X
Port B0
ADC Analog Input 0 2) or SPI Slave
Select (active low) or Analog Com-
parator Input
Caution: No negative current in-
jection allowed on this pin.
5
3
5
PB1/AIN1/SCK
I/O
CT
X
XX
X
Port B1
ADC Analog Input 1 2) or SPI Serial
Clock
6
4
6
PB2/AIN2/MISO
I/O
CT
X
XX
X
Port B2
ADC Analog Input 2 2) or SPI Mas-
ter In/ Slave Out Data
7
5
7
PB3/AIN3/MOSI
I/O
CT
X
ei2
XX
X
Port B3
ADC Analog Input 3 2) or SPI Mas-
ter Out / Slave In Data
86
8
PB4/AIN4/CLKIN/
COMPIN-
I/O
CT
X
XX
X
Port B4
ADC Analog Input 4 2) or External
clock input or Analog Comparator
External Reference Input
9
7
-
PB5/AIN5
I/O
CT
X
XX
X
Port B5
ADC Analog Input 5 2)
10
8
-
PB6/AIN6
I/O
CT
X
XX
X
Port B6
ADC Analog Input 6 2)
11
9
PA7/COMPOUT
I/O CT HS X
ei1
X
Port A7
Analog Comparator Output
1
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