參數(shù)資料
型號: ATMEGA324A-AUR
廠商: Atmel
文件頁數(shù): 43/160頁
文件大?。?/td> 0K
描述: IC MCU AVR 32K 20MHZ 44TQFP
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
megaAVR Introduction
標(biāo)準(zhǔn)包裝: 2,000
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: 32KB(16K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 1K x 8
RAM 容量: 2K 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-TQFP
包裝: 帶卷 (TR)
其它名稱: ATMEGA324A-AUR-ND
ATMEGA324A-AURTR
137
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
A FOCnA/FOCnB strobe will not generate any interrupt nor will it clear the timer in Clear Timer
on Compare match (CTC) mode using OCRnA as TOP.
The FOCnA/FOCnB bits are always read as zero.
16.12.4
TCNT1H and TCNT1L –Timer/Counter1
The two Timer/Counter I/O locations (TCNT1H and TCNT1L, combined TCNT1) give direct
access, both for read and for write operations, to the Timer/Counter unit 16-bit counter. To
ensure that both the high and low bytes are read and written simultaneously when the CPU
accesses these registers, the access is performed using an 8-bit temporary High Byte Register
(TEMP). This temporary register is shared by all the other 16-bit registers. See “Accessing 16-bit
Modifying the counter (TCNT1) while the counter is running introduces a risk of missing a com-
pare match between TCNT1 and one of the OCRnx Registers.
Writing to the TCNT1 Register blocks (removes) the compare match on the following timer clock
for all compare units.
16.12.5
TCNT3H and TCNT3L –Timer/Counter3
The two Timer/Counter I/O locations (TCNT3H and TCNT3L, combined TCNT3) give direct
access, both for read and for write operations, to the Timer/Counter unit 16-bit counter. To
ensure that both the high and low bytes are read and written simultaneously when the CPU
accesses these registers, the access is performed using an 8-bit temporary High Byte Register
(TEMP). This temporary register is shared by all the other 16-bit registers. See “Accessing 16-bit
Modifying the counter (TCNT3) while the counter is running introduces a risk of missing a com-
pare match between TCNT3 and one of the OCRnx Registers.
Writing to the TCNT3 Register blocks (removes) the compare match on the following timer clock
for all compare units.
16.12.6
OCR1AH and OCR1AL – Output Compare Register1 A
Bit
76543210
TCNT1[15:8]
TCNT1H
TCNT1[7:0]
TCNT1L
Read/Write
R/W
Initial Value
00000000
Bit
76543210
(0x95)
TCNT3[15:8]
TCNT3H
(0x94)
TCNT3[7:0]
TCNT3L
Read/Write
R/W
Initial Value
00000000
Bit
76543210
OCR1A[15:8]
OCR1AH
OCR1A[7:0]
OCR1AL
Read/Write
R/W
Initial Value
00000000
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ATMEGA324A-CUR 功能描述:8位微控制器 -MCU AVR 32KB FLSH 1KB EE 2KB SRAM-20MHz, IND 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
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ATMEGA324A-MCHR 功能描述:8位微控制器 -MCU AVR 32KB FLSH 1KB EE 2KB SRAM-20MHz, IND 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
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