參數(shù)資料
型號: PCA9698DGG/S911,51
廠商: NXP Semiconductors
文件頁數(shù): 43/48頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 40B 56TSSOP
標準包裝: 2,000
接口: I²C
輸入/輸出數(shù): 40
中斷輸出:
頻率 - 時鐘: 1MHz
電源電壓: 2.3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 56-TFSOP(0.240",6.10mm 寬)
供應商設備封裝: 56-TSSOP
包裝: 帶卷 (TR)
包括: POR
其它名稱: 935285491518
PCA9698DGG/S911-T
PCA9698DGG/S911-T-ND
48
7810C–AVR–10/12
Atmel ATmega328P [Preliminary]
10.6
Watchdog System 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 49 for details on operation of the Watchdog Timer.
Figure 10-6. Watchdog System Reset During Operation
10.7
Internal Voltage Reference
ATmega328P features an internal bandgap reference. This reference is used for Brown-out
Detection, and it can be used as an input to the Analog Comparator or the ADC.
10.7.1
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 308. To save power, the
reference is not always turned on. The reference is on during the following situations:
1.
When the BOD is enabled (by programming the BODLEVEL [2:0] Fuses).
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 consumption 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.
CK
CC
相關PDF資料
PDF描述
PCF51AC256BCPUE MCU 8BIT 256K FLASH 64-LQFP
PCF51JM64VLH MCU 32BIT 64K FLASH 64-LQFP
PCF8574T/3,518 IC I/O EXPANDER I2C 8B 16SOIC
PCF8575CTS/1,118 IC I/O EXPANDER I2C 16B 24SSOP
PCF8575TS/1,112 IC I/O EXPANDER I2C 16B 24SSOP
相關代理商/技術參數(shù)
參數(shù)描述
PCA9698DGGT 制造商:NXP Semiconductors 功能描述:I2C GPIO Expander 5.5V 56-Pin TSSOP T/R
PCA9698DGG-T 制造商:NXP Semiconductors 功能描述:I2C GPIO Expander 5.5V 56-Pin TSSOP T/R
PCA96PWS911,118 功能描述:接口-I/O擴展器 8-BIT I2C FM QB RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9701D 功能描述:寄存器 16BIT SPI 18V GPI INT -40 +125 RoHS:否 制造商:NXP Semiconductors 邏輯類型:CMOS 邏輯系列:HC 電路數(shù)量:1 最大時鐘頻率:36 MHz 傳播延遲時間: 高電平輸出電流:- 7.8 mA 低電平輸出電流:7.8 mA 電源電壓-最大:6 V 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-38 封裝:Tube
PCA9701D,112 功能描述:接口 - 專用 16BIT SPI 18V GPI RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59