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| 型號： | AT90L2323-4SI |
| 英文描述： | Microcontroller |
| 中文描述： | 微控制器 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大?。?/td> | 286K |
| 代理商： | AT90L2323-4SI |
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AT90S2323/LS2323 and AT90S2343/LS2343
The AT90S2323/2343 AVR is supported with a full suite of program and system development tools including: C compilers,
macro assemblers, program debugger/simulators, in-circuit emulators and evaluation kits.
Comparison between AT90S/LS2323 and AT90S/LS2343
The AT90S/LS2323 is intended for use with external quartz crystal or ceramic resonator as the clock source. The start-up
time is fuse-selectable as either 1 ms (suitable for ceramic resonator) or 16 ms (suitable for crystal). The device has three
I/O pins.
The AT90S/LS2343 is intended for use with either an external clock source or the internal RC oscillator as clock source.
The device has five I/O pins.
Table 1 summarizes the differences in features of the two devices.
Pin Descriptions AT90S/LS2323
VCC
Supply voltage pin.
GND
Ground pin.
Port B (PB2..PB0)
Port B is a 3-bit bi-directional I/O port with internal pull-up resistors. The Port B output buffers can sink 20 mA. As inputs,
Port B pins that are externally pulled low will source current if the pull-up resistors are activated.
Port B also serves the functions of various special features.
Port pins can provide internal pull-up resistors (selected for each bit). The Port B pins are tri-stated when a reset condition
becomes active.
RESET
Reset input. An external reset is generated by a low level on the RESET pin. Reset pulses longer than 50 ns will generate
a reset, even if the clock is not running. Shorter pulses are not guaranteed to generate a reset.
XTAL1
Input to the inverting oscillator amplifier and input to the internal clock operating circuit.
XTAL2
Output from the inverting oscillator amplifier.
Table 1.
Feature Difference Summary
Part
AT90S/LS2323
AT90S/LS2343
On-chip Oscillator Amplifier
yes
no
Internal RC Clock
no
yes
PB3 available as I/O pin
never
internal clock mode
PB4 available as I/O pin
never
always
Start-up time
1 ms/16 ms
16 μs fixed
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT90L2343-4PC | Microcontroller |
| AT90L2343-4PI | Microcontroller |
| AT90L2343-4SC | Microcontroller |
| AT90L2343-4SI | Microcontroller |
| AT90L4433 | AT90S/L4433 Complete [Updated 4/03. 126 Pages] |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT90L2343-4PC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| AT90L2343-4PI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| AT90L2343-4SC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| AT90L2343-4SI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| AT90L4433 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AT90S/L4433 Complete [Updated 4/03. 126 Pages] |
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