参数资料
型号: ST7FLITE29B6
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, PLASTIC, DIP-20
文件页数: 4/7页
文件大小: 51K
代理商: ST7FLITE29B6
ST7FLITE2
4/7
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
Fun ction
(after reset)
Alternate Function
SO20
(ST7FLITE2x)
DIP20
(ST7FLITE2x)
Input
Output
Inpu t
Output
float
wpu
int
ana
OD
PP
116
VSS
S
Ground
217
VDD
S
Main power supply
3
18
RESET
I/O CT
XX
Top priority non maskable interrupt (active
low)
4
19
PB0/AIN0/SS
I/O
CT
X
ei3
XX
X
Port B0
ADC Analog Input 0 or SPI
Slave Select (active low)
5
20
PB1/AIN1/SCK
I/O
CT
X
XX
X
Port B1
ADC Analog Input 1 or SPI Se-
rial Clock
6
1
PB2/AIN2/MISO
I/O
CT
X
XX
X
Port B2
ADC Analog Input 2 or SPI
Master In/ Slave Out Data
7
2
PB3/AIN3/MOSI
I/O
CT
X
ei2
XX
X
Port B3
ADC Analog Input 3 or SPI
Master Out / Slave In Data
8
3
PB4/AIN4/CLKIN
I/O
CT
X
XX
X
Port B4
ADC Analog Input 4 or Exter-
nal clock input
9
4
PB5/AIN5
I/O
CT
X
XX
X
Port B5
ADC Analog Input 5
10
5
PB6/AIN6
I/O
CT
X
XX
X
Port B6
ADC Analog Input 6
11
6
PA7
I/O CT HS
X
ei1
XX
Port A7
12
7
PA6 /MCO/
ICCCLK/BREAK
I/O
CT
X
XX
Port A6
Main Clock Output or In Circuit
Communication Clock or Ex-
ternal BREAK
13
8
PA5 /ATPWM3/
ICCDATA
I/O CT HS
X
XX
Port A5
Auto-Reload Timer PWM3 or
In Circuit Communication Data
14
9
PA4/ATPWM2
I/O CT HS
X
XX
Port A4
Auto-Reload Timer PWM2
1
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