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參數(shù)資料
| 型號： | ATMEGA168P-20ANR |
| 廠商： | Atmel |
| 文件頁數(shù)： | 21/27頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU AVR 16K FLASH 32TQFP |
| 產(chǎn)品培訓(xùn)模塊： | 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)： | 23 |
| 程序存儲器容量： | 16KB（8K x 16） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 512 x 8 |
| RAM 容量： | 1K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.7 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： | 32-TQFP |
| 包裝： | 帶卷 (TR) |
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3
8025MS–AVR–6/11
ATmega48P/88P/168P
1.1
Pin Descriptions
1.1.1
VCC
Digital supply voltage.
1.1.2
GND
Ground.
1.1.3
Port B (PB7:0) XTAL1/XTAL2/TOSC1/TOSC2
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port B output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Depending on the clock selection fuse settings, PB6 can be used as input to the inverting Oscil-
lator amplifier and input to the internal clock operating circuit.
Depending on the clock selection fuse settings, PB7 can be used as output from the inverting
Oscillator amplifier.
If the Internal Calibrated RC Oscillator is used as chip clock source, PB7:6 is used as TOSC2:1
input for the Asynchronous Timer/Counter2 if the AS2 bit in ASSR is set.
The various special features of Port B are elaborated in ”Alternate Functions of Port B” on page
80 and ”System Clock and Clock Options” on page 27.
1.1.4
Port C (PC5:0)
Port C is a 7-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
PC5:0 output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port C pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port C pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
1.1.5
PC6/RESET
If the RSTDISBL Fuse is programmed, PC6 is used as an I/O pin. Note that the electrical char-
acteristics of PC6 differ from those of the other pins of Port C.
If the RSTDISBL Fuse is unprogrammed, PC6 is used as a Reset input. A low level on this pin
for longer than the minimum pulse length will generate a Reset, even if the clock is not running.
The minimum pulse length is given in Table 29-3 on page 314. Shorter pulses are not guaran-
teed to generate a Reset.
The various special features of Port C are elaborated in ”Alternate Functions of Port C” on page
83.
1.1.6
Port D (PD7:0)
Port D is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port D output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port D pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port D pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
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| ATMEGA168P-20AU | 功能描述:8位微控制器 -MCU AVR 4K FLASH 256B EE 20MHZ TEMP GRN 1.8V 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(shí)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 |
| ATMEGA168P-20AUR | 功能描述:8位微控制器 -MCU AVR,16KB FLASH,20MHZ IND TEMP,5V 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(shí)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 |
| ATMEGA168P-20MQ | 功能描述:8位微控制器 -MCU AVR 4K FLASH 256B EE 20MHZ TEMP GRN 1.8V 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(shí)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 |
| ATMEGA168P-20MQR | 功能描述:8位微控制器 -MCU AVR,16KB FLASH,20MHZ EXT TEMP 5V 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(shí)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 |
| ATMEGA168P-20MU | 功能描述:8位微控制器 -MCU AVR 4K FLASH 256B EE 20MHZ TEMP GRN 1.8V 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(shí)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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