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參數(shù)資料
| 型號(hào)： | 90S2343 |
| 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)： | 3/11頁 |
| 文件大小： | 150K |
| 代理商： | 90S2343 |
3
AT90S/LS2323 and AT90S/LS2343
Figure 2.
The AT90S/LS2323 Block Diagram
Description
The AT90S/LS2323 and AT90S/LS2343 provides the fol-
lowing features: 2K bytes of In-System Programmable
Flash, 128 bytes EEPROM, 128 bytes SRAM, 3
(AT90S/LS2323) / 5 (AT90S/LS2343) general purpose I/O
lines, 32 general purpose working registers, an 8-bit
timer/counter, internal and external interrupts, programma-
ble Watchdog Timer with internal oscillator, an SPI serial
port for Flash Memory downloading and two software
selectable power saving modes. The Idle Mode stops the
CPU while allowing the SRAM, timer/counters, SPI port
and interrupt system to continue functioning. The power
down mode saves the register contents but freezes the
oscillator, disabling all other chip functions until the next
interrupt or hardware reset.
The device is manufactured using Atmel’s high density
non-volatile memory technology. The on-chip Flash allows
the program memory to be reprogrammed in-system
through an SPI serial interface. By combining an 8-bit RISC
CPU with ISP Flash on a monolithic chip, the Atmel
AT90S/LS2323 and AT90S/LS2343 is a powerful micro-
controller that provides a highly flexible and cost effective
solution to many embedded control applications.
The AT90S/LS2323 and AT90S/LS2343 AVR is supported
with a full suite of program and system development tools
including: C compilers, macro assemblers, program debug-
ger/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 star-
tup time is fuse selectable as either 1 ms (suitable for
ceramic resonator) or 16 ms (suitable for crystal). The
device has three I/0 pins.
The AT90S/LS2343 is intended for use with either an exter-
nal clock source or the internal RC oscillator as clock
source. The device has five I/0 pins.
PROGRAM
COUNTER
INTERNAL
WATCHDOG
TIMER
STACK
POINTER
PFLASH
MREGISTER
SRAM
GENERAL
PURPOSE
REGISTERS
INSTRUCTION
REGISTER
TIMER/
COUNTER
IDECODER
RDATA DIR.
DATPORTB
PROGRAMMING
LOGIC
TIMING AND
CONTROL
OSCILLATOR
INTUNIT
EEPROM
SPI
RSTATUS
Z
Y
X
ALU
PORTB DRIVERS
PB0 - PB2
RESET
VCC
GND
CLINES
8-BIT DATA BUS
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| 90S4414 | 16 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor |
| 90S8535 | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| 90SCFM | 20SCFM |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 90S4414 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K bytes In-System Programmable Flash |
| 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 |
| 90SCFM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:20SCFM |
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