- 您现在的位置：买卖IC网 > PDF目录98144 > ST62T03CM6E (STMICROELECTRONICS) 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO16 PDF资料下载
参数资料
| 型号： | ST62T03CM6E |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO16 |
| 封装： | 0.300 INCH, LEAD FREE, PLASTIC, SOP-16 |
| 文件页数： | 31/100页 |
| 文件大小： | 1440K |
| 代理商： | ST62T03CM6E |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页当前第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页
ST6200C/ST6201C/ST6203C
36/100
8 I/O PORTS
8.1 INTRODUCTION
Each I/O port contains up to 8 pins. Each pin can
be programmed independently as digital input
(with or without pull-up and interrupt generation),
digital output (open drain, push-pull) or analog in-
put (when available).
The I/O pins can be used in either standard or al-
ternate function mode.
Standard I/O mode is used for:
– Transfer of data through digital inputs and out-
puts (on specific pins):
– External interrupt generation
Alternate function mode is used for:
– Alternate signal input/output for the on-chip
peripherals
The generic I/O block diagram is shown in Figure
8.2 FUNCTIONAL DESCRIPTION
Each port is associated with 3 registers located in
Data space:
– Data Register (DR)
– Data Direction Register (DDR)
– Option Register (OR)
Each I/O pin may be programmed using the corre-
sponding register bits in the DDR, DR and OR reg-
isters: bit x corresponding to pin x of the port. Table
8 illustrates the various port configurations which
can be selected by user software.
During MCU initialization, all I/O registers are
cleared and the input mode with pull-up and no in-
terrupt generation is selected for all the pins, thus
avoiding pin conflicts.
8.2.1 Digital Input Modes
The input configuration is selected by clearing the
corresponding DDR register bit.
In this case, reading the DR register returns the
digital value applied to the external I/O pin.
Different input modes can be selected by software
through the DR and OR registers, see Table 8.
External Interrupt Function
All input lines can be individually connected by
software to the interrupt system by programming
the OR and DR registers accordingly. The inter-
rupt trigger modes (falling edge, rising edge and
low level) can be configured by software for each
port as described in the Interrupt section.
8.2.2 Analog Inputs
Some pins can be configured as analog inputs by
programming the OR and DR registers according-
ly, see Table 8. These analog inputs are connect-
ed to the on-chip 8-bit Analog to Digital Converter.
Caution: ONLY ONE pin should be programmed
as an analog input at any time, since by selecting
more than one input simultaneously their pins will
be effectively shorted.
8.2.3 Output Modes
The output configuration is selected by setting the
corresponding DDR register bit. In this case, writ-
ing to the DR register applies this digital value to
the I/O pin through the latch. Then, reading the DR
register returns the previously stored value.
Two different output modes can be selected by
software through the OR register: push-pull and
open-drain.
DR register value and output pin status:
Note: The open drain setting is not a true open
drain. This means it has the same structure as the
push-pull setting but the P-buffer is deactivated.
To avoid damaging the device, please respect the
VOUT absolute maximum rating described in the
Electrical Characteristics section.
8.2.4 Alternate Functions
When an on-chip peripheral is configured to use a
pin, the alternate function (timer input/output...) is
not systematically selected but has to be config-
ured through the DDR, OR and DR registers. Re-
fer to the chapter describing the peripheral for
more details.
DR
Push-pull
Open-drain
0VSS
VSS
1VDD
Floating
1
相关PDF资料 |
PDF描述 |
|---|---|
| ST62T10BM6 | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| ST62T25BB6 | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP28 |
| ST62T20BB6 | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP20 |
| ST62T18CB6 | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP20 |
| ST62T18CM3 | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST62T08CB6 | 功能描述:8位微控制器 -MCU OTP EPROM 1K SPI/UAR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ST62T08CB6 | 制造商:STMicroelectronics 功能描述:IC 8BIT MCU OTP 1K 62T08 DIP20 |
| ST62T08CM6 | 功能描述:8位微控制器 -MCU OTP EPROM 1K SPI/UAR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ST62T09CB6 | 功能描述:8位微控制器 -MCU OTP EPROM 1K No Intf RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ST62T09CB6 | 制造商:STMicroelectronics 功能描述:IC 8BIT MCU OTP 2K 62T09 DIP20 |
发布紧急采购，3分钟左右您将得到回复。