- 您现在的位置：买卖IC网 > PDF目录69380 > ST7PLUSA2B6 (STMICROELECTRONICS) 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP8 PDF资料下载
参数资料
| 型号： | ST7PLUSA2B6 |
| 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, PDIP8 |
| 封装： | 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-8 |
| 文件页数： | 58/136页 |
| 文件大小： | 1705K |
| 代理商： | ST7PLUSA2B6 |
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页当前第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页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页
Obsolete
Product(s)
- Obsolete
Product(s)
Obsolete
Product(s)
- Obsolete
Product(s)
Supply, reset and clock management
ST7LITEUS2, ST7LITEUS5
6
Supply, reset and clock management
The device includes a range of utility features for securing the application in critical
situations (for example in case of a power brown-out), and reducing the number of external
components.
6.1
Main features
●
Clock management
–
8 MHz internal RC oscillator (enabled by option byte)
–
External clock Input (enabled by option byte)
●
Reset sequence manager (RSM)
●
System integrity management (SI)
–
Main supply low voltage detection (LVD) with reset generation (enabled by option
byte)
–
Auxiliary voltage detector (AVD) with interrupt capability for monitoring the main
supply
6.2
Internal RC oscillator adjustment
The ST7 contains an internal RC oscillator with a specific accuracy for a given device,
temperature and voltage. It can be selected as the start up clock through the CKSEL[1:0]
option bits (see Section 14.1 on page 123). It must be calibrated to obtain the frequency
required in the application. This is done by software writing a 10-bit calibration value in the
RCCR (RC Control register) and in the bits [6:5] in the SICSR (SI Control Status register).
Whenever the microcontroller is reset, the RCCR returns to its default value (FFh), i.e. each
time the device is reset, the calibration value must be loaded in the RCCR. Predefined
calibration values are stored in Flash memory for 3.3 and 5 V VDD supply voltages at 25°C,
as shown in the following table.
Table 5.
Predefined RC oscillator calibration values
RCCR
Conditions
ST7LITEUS2/ST7LITEUS5 address
RCCRH0
VDD=5 V
TA=25 °C
fRC=8 MHz
DEE0h(1) (CR[9:2] bits)
1.
DEE0h, DEE1h, DEE2h and DEE3h are located in a reserved area butare special bytes containing also
the RC calibration values which are read-accessible only in user mode. If all the Flash space (including the
RC calibration value locations) has been erased (after the readout protection removal), then the RC
calibration values can still be obtained through these two addresses.
RCCRL0
DEE1h 1) (CR[1:0] bits)
RCCRH1
VDD=3.3 V
TA=25 °C
fRC=8 MHz
DEE2h 1) (CR[9:2] bits)
RCCRL1
DEE3h 1) (CR[1:0] bits)
相关PDF资料 |
PDF描述 |
|---|---|
| ST7FLITEUSA5U6TR | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8 |
| ST7PLUSA5U6TR | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO8 |
| ST7PLUSA5B6 | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP8 |
| ST7PLUSA2M3 | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8 |
| ST7PMC1K2TC/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST7PMC1K2B3 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI? |
| ST7PMC1K2B6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI |
| ST7PMC1K2T3 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI? |
| ST7PMC1K2T6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI |
| ST7PMC1K2T6/ST7PMC1K2 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI |
发布紧急采购，3分钟左右您将得到回复。