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参数资料
| 型号： | ST92195B2T1/XXX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP64 |
| 封装： | PLASTIC, TQFP-64 |
| 文件页数： | 2/22页 |
| 文件大小： | 140K |
| 代理商： | ST92195B2T1/XXX |
10/22
ST92195B - GENERAL DESCRIPTION
1.2.2 I/O Port Styles
Legend:
AF= Alternate Function, BID = Bidirectional, OD = Open Drain
PP = Push-Pull, TTL = TTL Standard Input Levels
How to Read this Table
To configure the I/O ports, use the information in
this table and the Port Bit Configuration Table in
the I/O Ports Chapter of the datasheet.
Port Style= the hardware characteristics fixed for
each port line.
Inputs:
– If port style = Standard I/O, either TTL or CMOS
input level can be selected by software.
– If port style = Schmitt trigger, selecting CMOS or
TTL input by software has no effect, the input will
always be Schmitt Trigger.
Weak Pull-Up = This column indicates if a weak
pull-up is present or not.
– If WPU = yes, then the WPU can be enabled/dis-
able by software
– If WPU = no, then enabling the WPU by software
has no effect
Alternate Functions (AF) = More than one AF
cannot be assigned to an external pin at the same
time:
An alternate function can be selected as follows.
AF Inputs:
– AF is selected implicitly by enabling the corre-
sponding peripheral. Exception to this are ADC
analog inputs which must be explicitly selected
as AF by software.
P4.5
All ports useable
for general pur-
pose I/O (input,
output or bidi-
rectional)
45
47
PWM5
O
PWM Output 5
P4.6
46
48
PWM6
O
PWM Output 6
P4.7
47
49
EXTRG
I
A/D Converter External Trigger Input
PWM7
O
PWM Output 7
STOUT
O
Standard Timer Output
P5.0
14
20
INT2
I
External Interrupt 2
SCK
O
SPI Serial Clock
P5.1
13
19
SDO
O
SPI Serial Data Out
SDI
I
SPI Serial Data In
Port
Name
General
Purpose I/O
Pin No.
Alternate Functions
TQFP64 SDIP56
Pins
Weak Pull-Up
Port Style
Reset Values
P0[7:0]
no
Standard I/O
BID / OD / TTL
P2[5,4,3,2]
no
Standard I/O
BID / OD / TTL
P2[1,0]
no
Schmitt trigger
BID / OD / TTL
P3.7
yes
Standard I/O
AF / PP / TTL
P3[6,5,4]
no
Standard I/O
BID / OD / TTL
P4[7:0]
no
Standard I/O
BID / OD / TTL
P5[1:0]
no
Standard I/O
BID / OD / TTL
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相关代理商/技术参数 |
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