參數(shù)資料
型號： R5F21264JFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP32
封裝： 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件頁數(shù)： 22/52頁
文件大?。?/td> 620K
代理商： R5F21264JFP
46
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P [DATASHEET]
8285E–AVR–02/2013
Figure 11-5. Brown-out reset during operation.
11.2.4
Watchdog Reset
When the Watchdog times out, it will generate a short reset pulse of one CK cycle duration. On the falling edge of
this pulse, the delay timer starts counting the Time-out period t
TOUT. Refer to page 47 for details on operation of the
Watchdog Timer.
Figure 11-6. Watchdog Reset during operation.
11.3
Internal voltage reference
Atmel ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/6450A/6450P features an internal bandgap
reference. This reference is used for Brown-out Detection, and it can be used as an input to the Analog Compara-
tor or the ADC.
11.3.1
Voltage Reference Enable Signals and Start-up Time
The voltage reference has a start-up time that may influence the way it should be used. The start-up time is given
in ”System and Reset characteristics” on page 297. To save power, the reference is not always turned on. The ref-
erence is on during the following situations:
1.
When the BOD is enabled (by programming the BODLEVEL [2...0] Fuse).
2.
When the bandgap reference is connected to the Analog Comparator (by setting the ACBG bit in ACSR).
3.
When the ADC is enabled.
Thus, when the BOD is not enabled, after setting the ACBG bit or enabling the ADC, the user must always allow
the reference to start up before the output from the Analog Comparator or ADC is used. To reduce power con-
sumption in Power-down mode, the user can avoid the three conditions above to ensure that the reference is
turned off before entering Power-down mode.
VCC
RESET
TIME-OUT
INTERNAL
RESET
VBOT-
VBOT+
tTOUT
CK
CC
相關(guān)PDF資料
PDF描述
R5F21276SDXXXFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP32
R5F21276KFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP32
R5F21274SDFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP32
R5F21274SNFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP32
R5F21274KXXXFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP32
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R5F21264JFP#U0 制造商:Renesas Electronics Corporation 功能描述:MCU 16-bit R8C CISC 16KB Flash 3.3V/5V 32-Pin LQFP Tray 制造商:Renesas Electronics Corporation 功能描述:R8C26 3/5V 16KB -40 85C 32LQFP - Trays 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 16KB FLASH 32LQFP 制造商:Renesas Electronics Corporation 功能描述:R8C Series 16 bit 1 kB RAM 16 KB Flash Microcontroller - LQFP-32
R5F21264JFP#V0 功能描述:MCU FLASH 16K ROM 1K RAM 32-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/2x/26 標(biāo)準(zhǔn)包裝:96 系列:PIC® 16F 核心處理器:PIC 芯體尺寸:8-位 速度:20MHz 連通性:I²C，SPI 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):11 程序存儲器容量:3.5KB（2K x 14） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:128 x 8 電壓 - 電源 (Vcc/Vdd):2.3 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 包裝:管件
R5F21264JFP#W4 功能描述:MCU 16KB ROM 1KB RAM 32-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/2x/26 標(biāo)準(zhǔn)包裝:300 系列:78K0R/Ix3 核心處理器:78K/0R 芯體尺寸:16-位 速度:40MHz 連通性:3 線 SIO，I²C，LIN，UART/USART 外圍設(shè)備:DMA，LVD，POR，PWM，WDT 輸入/輸出數(shù):27 程序存儲器容量:16KB（16K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:38-SSOP 包裝:托盤
R5F21264JXXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU
R5F21264KFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*