参数资料
型号: ATMEGA103-6AI
厂商: Atmel
文件页数: 98/141页
文件大小: 0K
描述: IC MCU 128K 6MHZ A/D IT 64TQFP
产品培训模块: megaAVR Introduction
标准包装: 90
系列: AVR® ATmega
核心处理器: AVR
芯体尺寸: 8-位
速度: 6MHz
连通性: SPI,UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 32
程序存储器容量: 128KB(64K x 16)
程序存储器类型: 闪存
EEPROM 大小: 4K x 8
RAM 容量: 4K x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 5.5 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 64-TQFP
包装: 托盘
配用: ATSTK501-ND - ADAPTER KIT FOR 64PIN AVR MCU
6
ATmega103(L)
0945I–AVR–02/07
TOSC1
Input to the inverting Timer/Counter Oscillator amplifier.
TOSC2
Output from the inverting Timer/Counter Oscillator amplifier.
WR
External SRAM write strobe
RD
External SRAM read strobe
ALE
ALE is the Address Latch Enable used when the External Memory is enabled. The ALE
strobe is used to latch the low-order address (8 bits) into an address latch during the first
access cycle, and the AD0 - 7 pins are used for data during the second access cycle.
AVCC
Supply voltage for Port F, including ADC. The pin must be connected to VCC when not
used for the ADC. See “ADC Noise Canceling Techniques” on page 82 for details when
using the ADC.
AREF
AREF is the analog reference input for the ADC converter. For ADC operations, a volt-
age in the range AGND to AVCC must be applied to this pin.
AGND
If the board has a separate analog ground plane, this pin should be connected to this
ground plane. Otherwise, connect to GND.
PEN
PEN is a programming enable pin for the Serial Programming mode. By holding this pin
low during a Power-on Reset, the device will enter the Serial Programming mode. PEN
has no function during normal operation.
Clock Options
Crystal Oscillator
XTAL1 and XTAL2 are input and output, respectively, of an inverting amplifier, which
can be configured for use as an on-chip Oscillator, as shown in Figure 2. Either a quartz
crystal or a ceramic resonator may be used.
Figure 2. Oscillator Connections
Note:
When using the MCU Oscillator as a clock for an external device, an HC buffer should be
connected as indicated in the figure.
XTAL2
XTAL1
GND
C2
C1
MAX 1 HC BUFFER
HC
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