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參數(shù)資料
| 型號： | AT89S8252-24AI |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-Bit Microcontroller with 8K Bytes Flash |
| 中文描述： | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | 10 X 10 MM, 1 MM THICKNESS, 0.80 MM PITCH, PLASTIC, MS-026ACB, TQFP-44 |
| 文件頁數(shù)： | 1/31頁 |
| 文件大?。?/td> | 455K |
| 代理商： | AT89S8252-24AI |
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4-105
Features
Compatible with MCS-51
Products
8K Bytes of In-System Reprogrammable Downloadable Flash Memory
– SPI Serial Interface for Program Downloading
– Endurance: 1,000 Write/Erase Cycles
2K Bytes EEPROM
– Endurance: 100,000 Write/Erase Cycles
4.0V to 6V Operating Range
Fully Static Operation: 0 Hz to 24 MHz
Three-Level Program Memory Lock
256 x 8-bit Internal RAM
32 Programmable I/O Lines
Three 16-bit Timer/Counters
Nine Interrupt Sources
Programmable UART Serial Channel
SPI Serial Interface
Low Power Idle and Power Down Modes
Interrupt Recovery From Power Down
Programmable Watchdog Timer
Dual Data Pointer
Power Off Flag
Description
The AT89S8252 is a low-power, high-performance CMOS 8-bit microcomputer with
8K bytes of Downloadable Flash programmable and erasable read only memory and
2K bytes of EEPROM. The device is manufactured using Atmel’s high density nonvol-
atile memory technology and is compatible with the industry standard 80C51 instruc-
tion set and pinout. The on-chip Downloadable Flash allows the program memory to
be reprogrammed in-system through an SPI serial interface or by a conventional non-
volatile memory programmer. By combining a versatile 8-bit CPU with Downloadable
Flash on a monolithic chip, the Atmel AT89S8252 is a powerful microcomputer which
provides a highly flexible and cost effective solution to many embedded control appli-
cations.
The AT89S8252 provides the following standard features: 8K bytes of Downloadable
Flash, 2K bytes of EEPROM, 256 bytes of RAM, 32 I/O lines, programmable watch-
dog timer, two Data Pointers, three 16-bit timer/counters, a six-vector two-level inter-
rupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. In
addition, the AT89S8252 is designed with static logic for operation down to zero fre-
quency and supports two software selectable power saving modes. The Idle Mode
stops the CPU while allowing the RAM, timer/counters, serial port, and interrupt sys-
tem to continue functioning. The Power Down Mode saves the RAM contents but
freezes the oscillator, disabling all other chip functions until the next interrupt or hard-
ware reset.
The Downloadable Flash can be changed a single byte at a time and is accessible
through the SPI serial interface. Holding RESET active forces the SPI bus into a serial
programming interface and allows the program memory to be written to or read from
unless Lock Bit 2 has been activated.
0401D-A–12/97
8-Bit
Microcontroller
with 8K Bytes
Flash
AT89S8252
相關PDF資料 |
PDF描述 |
|---|---|
| AT89S8252-24JI | High Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Reset 16-SOIC -55 to 125 |
| AT89S8252-24PC | High Speed CMOS Logic Quad Buffers with 3-State Outputs 14-PDIP -55 to 125 |
| AT89S8252-24PI | High Speed CMOS Logic Quad Buffers with 3-State Outputs 14-PDIP -55 to 125 |
| AT89S8252-24QC | High Speed CMOS Logic Quad Buffers with 3-State Outputs 14-SOIC -55 to 125 |
| AT89S8252-24QI | High Speed CMOS Logic Quad Buffers with 3-State Outputs 14-SOIC -55 to 125 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AT89S8252-24AU | 制造商:Rochester Electronics LLC 功能描述: |
| AT89S8252-24JC | 功能描述:8位微控制器 -MCU 8K Flash 24M 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 安裝風格:SMD/SMT |
| AT89S8252-24JI | 功能描述:8位微控制器 -MCU 8K Flash 24M 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 安裝風格:SMD/SMT |
| AT89S8252-24PC | 功能描述:8位微控制器 -MCU 8K Flash 24M 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 安裝風格:SMD/SMT |
| AT89S8252-24PI | 功能描述:8位微控制器 -MCU w/8k 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 安裝風格:SMD/SMT |
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