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參數(shù)資料
| 型號(hào)： | PIC16F883-I/ML |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 14/16頁 |
| 文件大小： | 0K |
| 描述： | IC PIC MCU FLASH 4KX14 28QFN |
| 產(chǎn)品培訓(xùn)模塊： | Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio |
| 標(biāo)準(zhǔn)包裝： | 61 |
| 系列： | PIC® 16F |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 20MHz |
| 連通性： | I²C，SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測(cè)/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 24 |
| 程序存儲(chǔ)器容量： | 7KB（4K x 14） |
| 程序存儲(chǔ)器類型： | 閃存 |
| EEPROM 大小： | 256 x 8 |
| RAM 容量： | 256 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 11x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 28-VQFN 裸露焊盤 |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 640 (CN2011-ZH PDF) |
| 配用： | MCP1631RD-MCC2-ND - REFERENCE DESIGN MCP1631HV AC164322-ND - MODULE SOCKET MPLAB PM3 28/44QFN |
2009 Microchip Technology Inc.
DS80302F-page 7
PIC16F88X
6.
Module: MSSP (I2C Master Mode)
When the MSSP is I2C Master mode with a
slave device stretching the clock, the clock
generation does not function as described in the
data sheet.
When a slave device is performing clock stretching
by pulling the SCL line low, the master device
should continuously sample the SCL line to
determine when all slaves have released SCL.
When SCL is released, the master device should
wait one BRG period to ensure a constant SCL
high time.
The current implementation does not ensure
accurate SCL high time. During clock stretch, the
MSSP device will erroneously continue running
the BRG counter. At the end of the clock stretch
the BRG counter continues to count down for the
remainder of the BRG period, and then the MSSP
device will immediately resume transmitting the
data.
in which the SCL line is completely controlled by
the master device and the slave device does not
attempt to stretch the clock period.
Figure 2 illustrates the expected operation of an
I2C transmission in which the slave device has
stretched the clock period by holding the SCL line
low. The high time of the SCL pulse is constant,
regardless of the duration of the clock stretch.
transmission in which the slave has stretched the
clock period by holding the SCL line low. Note that
the high time of the SCL signal has shortened from
the expected time.
FIGURE 1:
ACTUAL (CORRECT) OPERATION WITHOUT CLOCK STRETCHING
FIGURE 2:
EXPECTED OPERATION WITH CLOCK STRETCHING
BRG Period
SDA
SCL
Master
Slave
BRG Period
SDA
SCL
Master
Slave
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC16F883T-E/SS | 制造商:Microchip Technology Inc 功能描述: |
| PIC16F883T-I/ML | 功能描述:8位微控制器 -MCU 7KB Flash 256 RAM 25 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16F883T-I/ML031 | 制造商:Microchip Technology Inc 功能描述:MCCPIC16F883T-I/ML031 28 PIN 7KB FLASH 2 |
| PIC16F883T-I/SO | 功能描述:8位微控制器 -MCU 7KB Flash 256 RAM 25 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16F883T-I/SS | 功能描述:8位微控制器 -MCU 7KB Flash 256 RAM 25 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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