參數(shù)資料
型號： AT90USB162-16MU
廠商： Atmel
文件頁數(shù)： 22/38頁
文件大?。?/td> 0K
描述： MCU AVR USB 16K FLASH 32-QFN
產(chǎn)品培訓(xùn)模塊： MCU Product Line Introduction
megaAVR Introduction
標準包裝： 2,450
系列： AVR® 90USB
核心處理器： AVR
芯體尺寸： 8-位
速度： 16MHz
連通性： EBI/EMI，PS/2，SPI，UART/USART，USB
外圍設(shè)備： 欠壓檢測/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 22
程序存儲器容量： 16KB（16K x 8）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量： 512 x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 5.5 V
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 32-VFQFN 裸露焊盤
包裝： 托盤
配用： ATSTK600-ND - DEV KIT FOR AVR/AVR32
ATSTK526-ND - KIT STARTER FOR AT90USB82/162
ATAVRDRAGON-ND - KIT DRAGON FLASH MEM AVR
ATSTK525-ND - KIT STARTER FOR AT90USB
AT90USBKEY2-ND - KIT DEMO FOR AT90USB
29
7707F–AVR–11/10
AT90USB82/162
6.2.5
Clock Status Register – CLKSTA
Bit 7-2 - Reserved bits
These bits are reserved and will always read as zero.
Bit 1 – RCON: RC Oscillator On
This bit is set by hardware to one if the RC Oscillator is running.
This bit is set by hardware to zero if the RC Oscillator is stoped.
Bit 0 – EXTON: External Oscillator / Low Power Oscillator On
This bit is set by hardware to one if the External Oscillator / Low Power Oscillator is running.
This bit is set by hardware to zero if the External Oscillator / Low Power Oscillator is stoped.
6.3
Clock Sources
The device has the following clock source options, selectable by Flash Fuse bits as shown
below. The clock from the selected source is input to the AVR clock generator, and routed to the
appropriate modules.
Note:
1. For all fuses “1” means unprogrammed while “0” means programmed.
6.3.1
Default Clock Source
The device is shipped with low power crystal oscillator and with the fuse CKDIV8 programmed.
The startup time is set to maximum and time-out period enabled. (CKSEL = "1110", SUT = "01",
CKDIV8 = "0").
6.3.2
Clock Startup Sequence
Any clock source needs a sufficient V
CC to start oscillating and a minimum number of oscillating
cycles before it can be considered stable.
To ensure sufficient V
CC, the device issues an internal reset with a time-out delay (tTOUT) after
the device reset is released by all other reset sources. “On-chip Debug System” on page 45
describes the start conditions for the internal reset. The delay (t
TOUT) is timed from the Watchdog
Oscillator and the number of cycles in the delay is set by the SUTx and CKSELx fuse bits. The
selectable delays are shown in Table 6-2. The frequency of the Watchdog Oscillator is voltage
Bit
7
6
543
2
1
0
-
RCON
EXTON
CLKSTA
Read/Write
R
Initial Value
0
See Bit Description
Table 6-1.
Device Clocking Options Select
Device Clocking Option
CKSEL3..0
Low Power Crystal Oscillator
1111 - 1000
Reserved
0111 - 0110
Reserved
0101 - 0100
Reserved
0011
Calibrated Internal RC Oscillator
0010
External Clock
0000
Reserved
0001
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT90USB162-16MUR 功能描述:8位微控制器 -MCU 16K Flash 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
AT90USB646 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
AT90USB646_0607 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
AT90USB646_08 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
AT90USB646_09 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
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