参数资料
型号: ST72611F1M1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20
封装: 0.300 INCH, PLASTIC, SOP-20
文件页数: 56/77页
文件大小: 1178K
代理商: ST72611F1M1
ST7261
6/77
PIN DESCRIPTION (Cont’d)
Legend / Abbreviations:
Type:
I = input, O = output, S = supply
Input level:
A = Dedicated analog input
Input level:
C = CMOS 0.3VDD/0.7VDD,
CT= CMOS 0.3VDD/0.7VDD with input trigger
Output level:
HS = high sink (on N-buffer only)
Port configuration capabilities:
– Input:
float = floating, wpu = weak pull-up, int = interrupt (\ =falling edge, / =rising edge),
ana = analog
– Output: OD = open drain, PP = push-pull
Table 1. Device Pin Description
Pin n°
Pin Name
Type
Level
Port / Control
Main
Function
(after reset)
Alternate Function
SO
20
DIP
2
0
Inp
u
t
Ou
tput
Input
Output
float
wpu
int
ana
OD
PP
914 VPP
Sx
FLASH programming voltage (12V), must be
tied low in user mode.
11 16 OSCIN
These pins are used connect an external
clock source to the on-chip main oscillator.
12 17 OSCOUT
49
VSS
S
Digital Ground Voltage
813 VDD
S
Digital Main Power Supply Voltage
13 18 PB7/IT8
I/O CT HS
x
\
x
Port B7
Interrupt 8 input
14 19 PB6/IT7
I/O CT HS
x
\
x
Port B6
Interrupt 7 input
15 20 PB5/IT6
I/O CT HS
x
/
x
Port B5
Interrupt 6 input
16
1
PB4/IT5
I/O CT HS
x
/
x
Port B4
Interrupt 5 input
17
2
PB3
I/O CT HS
x
Port B3
18
3
PB2
I/O CT HS
x
Port B2
19
4
PB1
I/O CT HS
x
Port B1
20
5
PB0/MCO
I/O CT HS x
x
Port B0
CPU clock output
1
6
PA2/IT3
I/O CT
x\
x
Port A2
Interrupt 3 input
2
7
PA1/IT2
I/O CT
X\
x
Port A1
Interrupt 2 input
3
8
PA0/IT1/USBOE
I/O CT
X\
x
Port A0
Interrupt 1 input/USB Output
Enable
10 15 RESET
I/O
C
Top priority non maskable interrupt (active
low)
5
10 USBDM
I/O
USB bidirectional data (data -)
6
11 USBDP
I/O
USB bidirectional data (data +)
7
12 USBVCC
S
USB power supply 3.3V output
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