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參數(shù)資料
| 型號(hào)： | 90S2313 |
| 廠商： | Atmel Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| 中文描述： | 位AVR微控制器具有8K字節(jié)的系統(tǒng)內(nèi)可編程閃存 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 387K |
| 代理商： | 90S2313 |
AT90S2313
3
Pin Descriptions
VCC
Supply voltage pin.
GND
Ground pin.
Port B (PB7..PB0)
Port B is an 8-bit bi-directional I/O port. Port pins can pro-
vide internal pull-up resistors (selected for each bit). PB0
and PB1 also serve as the positive input (AIN0) and the
negative input (AIN1), respectively, of the on-chip analog
comparator. The Port B output buffers can sink 20mA and
can drive LED displays directly. When pins PB0 to PB7 are
used as inputs and are externally pulled low, they will
source current if the internal pull-up resistors are activated.
Port B also serves the functions of various special features
of the AT90S2313 as listed on page 38.
Port D (PD6..PD0)
Port D has seven bi-directional I/O pins with internal pull-up
resistors, PD6..PD0. The Port D output buffers can sink 20
mA. As inputs, Port D pins that are externally pulled low will
source current if the pull-up resistors are activated.
Port D also serves the functions of various special features
of the AT90S2313 as listed on page 43.
RESET
Reset input. A low on this pin for two machine cycles while
the oscillator is running resets the device.
XTAL1
Input to the inverting oscillator amplifier and input to the
internal clock operating circuit.
XTAL2
Output from the inverting oscillator amplifier
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. To drive the
device from an external clock source, XTAL2 should be left
unconnected while XTAL1 is driven as shown in Figure 3.
Figure 2.
Oscillator Connections
Figure 3.
External Clock Drive Configuration
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| 90S2343 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 2K Bytes of In-System Programmable Flash |
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| 90S7A | 制造商:QUARTZCOM 制造商全稱:QUARTZCOM the communications company 功能描述:-20 ~ +70 °C commercia l application -30 ~ +75 °C on request |
| 90S8535 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K/8K Bytes In-System Programmable Flash |
| 90SC15B | 制造商:NDK 制造商全稱:NDK 功能描述:four-pole crystal filter with a built-in coupling capacitor |
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