參數(shù)資料
型號(hào): AT89S4051-24PI
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-bit Microcontroller with 2K/4K Bytes Flash
中文描述: 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP20
封裝: 0.300 INCH, MS-001AD, PLASTIC, DIP-20
文件頁(yè)數(shù): 5/45頁(yè)
文件大?。?/td> 981K
代理商: AT89S4051-24PI
5
3390C–MICRO–7/05
AT89S2051/S4051
6.
X2 Mode Description
The clock for the entire circuit and peripherals is normally divided by 2 before being used by the
CPU core and peripherals. This allows any cyclic ratio (duty cycle) to be accepted on XTAL1
input. In X2 mode this divider is bypassed.
Figure 6-1
shows the clock generation block diagram.
Figure 6-1.
Clock Generation Block Diagram
7.
Special Function Registers
A map of the on-chip memory area called the Special Function Register (SFR) space is shown in
Table 7-1
.
Note that not all of the addresses are occupied, and unoccupied addresses may not be imple-
mented on the chip. Read accesses to these addresses will in general return random data, and
write accesses will have an indeterminate effect.
User software should not write 1s to these unlisted locations, since they may be used in future
products to invoke new features. In that case, the reset or inactive values of the new bits will
always be 0.
÷
2
(XTAL1)/2
X2 Mode
F
OSC
State Machine: 6 Clock Cycles
CPU Control
F
XTAL
XTAL1
相關(guān)PDF資料
PDF描述
AT89S4051-24PU 8-bit Microcontroller with 2K/4K Bytes Flash
AT89S4051-24SC 8-bit Microcontroller with 2K/4K Bytes Flash
AT89S4051-24SI 8-bit Microcontroller with 2K/4K Bytes Flash
AT89S4051-24SU 8-bit Microcontroller with 2K/4K Bytes Flash
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT89S4051-24PU 功能描述:8位微控制器 -MCU 4K FLASH 24MHZ 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
AT89S4051-24SU 功能描述:8位微控制器 -MCU 4K FLASH 24MHZ 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
AT89S4051-24SUR 功能描述:8051 89S Microcontroller IC 8-Bit 24MHz 4KB (4K x 8) FLASH 20-SOIC 制造商:atmel 系列:89S 包裝:管件 零件狀態(tài):有效 核心處理器:8051 核心尺寸:8-位 速度:24MHz 連接性:UART/USART 外設(shè):欠壓檢測(cè)/復(fù)位,POR,PWM I/O 數(shù):15 程序存儲(chǔ)容量:4KB(4K x 8) 程序存儲(chǔ)器類型:閃存 EEPROM 容量:- RAM 容量:256 x 8 電壓 - 電源(Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器類型:內(nèi)部 工作溫度:-40°C ~ 85°C(TA) 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 供應(yīng)商器件封裝:20-SOIC 標(biāo)準(zhǔn)包裝:37
AT89S4D12-12RC 功能描述:8位微控制器 -MCU Microcontroller 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
AT89S4D12-12RI 功能描述:8位微控制器 -MCU Microcontroller 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT