參數(shù)資料
型號(hào): AT90USB162-16MUR
廠商: Atmel
文件頁(yè)數(shù): 30/38頁(yè)
文件大?。?/td> 0K
描述: IC AVR MCU 16K FLASH 32QFN
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
megaAVR Introduction
標(biāo)準(zhǔn)包裝: 1
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(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 22
程序存儲(chǔ)器容量: 16KB(16K x 8)
程序存儲(chǔ)器類(lèi)型: 閃存
EEPROM 大小: 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(pán)
包裝: 標(biāo)準(zhǔn)包裝
配用: ATSTK600-TQFP32-ND - STK600 SOCKET/ADAPTER 32-TQFP
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
其它名稱(chēng): AT90USB162-16MURDKR
36
7707F–AVR–11/10
AT90USB82/162
“0011”, giving a division factor of 8 at start up. This feature should be used if the selected clock
source has a higher frequency than the maximum frequency of the device at the present operat-
ing conditions. Note that any value can be written to the CLKPS bits regardless of the CKDIV8
Fuse setting. The Application software must ensure that a sufficient division factor is chosen if
the selected clock source has a higher frequency than the maximum frequency of the device at
the present operating conditions. The device is shipped with the CKDIV8 Fuse programmed.
6.9
PLL
The PLL is used to generate internal high frequency (48 MHz) clock for USB interface, the PLL
input is generated from an external low-frequency (the crystal oscillator or external clock input
pin from XTAL1).
6.9.1
Internal PLL for USB interface
The internal PLL in AT90USB82/162 generates a clock frequency that is 6x multiplied from nom-
inally 8 MHz input. The source of the 8 MHz PLL input clock is the output of the internal PLL
clock prescaler that generates the 8 MHz.
Table 6-9.
Clock Prescaler Select
CLKPS3
CLKPS2
CLKPS1
CLKPS0
Clock Division Factor
00
1
00
01
2
00
10
4
00
11
8
01
00
16
01
32
01
10
64
01
11
128
10
00
256
10
01
Reserved
10
Reserved
10
11
Reserved
11
00
Reserved
11
01
Reserved
11
10
Reserved
11
Reserved
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