參數(shù)資料
型號: ATMEGA1284P-MUR
廠商: Atmel
文件頁數(shù): 92/160頁
文件大?。?/td> 0K
描述: MCU AVR 128KB FLASH 20MHZ 44VQFN
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
megaAVR Introduction
標(biāo)準(zhǔn)包裝: 4,000
系列: AVR® ATmega
核心處理器: AVR
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/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 128KB(64K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 4K x 8
RAM 容量: 16K x 8
電壓 - 電源 (Vcc/Vdd): 1.8 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: 44-VFQFN 裸露焊盤
包裝: 帶卷 (TR)
配用: ATSTK600-ND - DEV KIT FOR AVR/AVR32
其它名稱: ATMEGA1284P-MUR-ND
37
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
When this Oscillator is selected, start-up times are determined by the SUT Fuses as shown in
Note:
1.
The device is shipped with this option selected.
9.7
128kHz internal oscillator
The 128kHz internal Oscillator is a low power Oscillator providing a clock of 128kHz. The fre-
quency is nominal at 3V and 25
C. This clock may be select as the system clock by
programming the CKSEL Fuses to “0011” as shown in Table 9-12.
Note:
1. Note that the 128kHz oscillator is a very low power clock source, and is not designed for high
accuracy.
When this clock source is selected, start-up times are determined by the SUT Fuses as shown in
Table 9-11.
Start-up times for the Internal Calibrated RC Oscillator clock selection.
Power conditions
Start-up time from power-
down and power-save
Additional delay from
reset (V
CC = 5.0V)
SUT1..0
BOD enabled
6CK
14CK
00
Fast rising power
6CK
14CK + 4.1ms
01
Slowly rising power
6CK
14CK + 65ms
Reserved
11
Table 9-12.
128kHz Internal Oscillator Operating Modes (2).
Nominal frequency
CKSEL3..0
128kHz
0011
Table 9-13.
Start-up times for the 128kHz internal oscillator.
Power conditions
Start-up time from power-
down and power-save
Additional delay from
reset
SUT1..0
BOD enabled
6CK
14CK
00
Fast rising power
6CK
14CK + 4ms
01
Slowly rising power
6CK
14CK + 64ms
10
Reserved
11
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