參數(shù)資料
型號: TS80C51RA2-LCAB
廠商: Atmel Corp.
英文描述: High Performance 8-bit Microcontrollers
中文描述: 高性能8位微控制器
文件頁數(shù): 8/74頁
文件大小: 903K
代理商: TS80C51RA2-LCAB
8
Rev. C - 06 March, 2001
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
Mnemonic
Pin Number
Type
Name And Function
ALE/PROG
30
33
27
O (I)
Address Latch Enable/Program Pulse:
Output pulse for latching the low byte
of the address during an access to external memory. In normal operation, ALE
is emitted at a constant rate of 1/6 (1/3 in X2 mode) the oscillator frequency,
and can be used for external timing or clocking. Note that one ALE pulse is
skipped during each access to external data memory. This pin is also the program
pulse input (PROG) during EPROM programming. ALE can be disabled by
setting SFR’s AUXR.0 bit. With this bit set, ALE will be inactive during internal
fetches.
PSEN
29
32
26
O
Program Store ENable:
The read strobe to external program memory. When
executing code from the external program memory, PSEN is activated twice each
machine cycle, except that two PSEN activations are skipped during each access
to external data memory. PSEN is not activated during fetches from internal
program memory.
EA/V
PP
31
35
29
I
External Access Enable/Programming Supply Voltage:
EA must be externally
held low to enable the device to fetch code from external program memory
locations 0000H and 3FFFH (RB) or 7FFFH (RC), or FFFFH (RD). If EA is
held high, the device executes from internal program memory unless the program
counter contains an address greater than 3FFFH (RB) or 7FFFH (RC) EA must
be held low for ROMless devices. This pin also receives the 12.75V programming
supply voltage (V
PP
) during EPROM programming. If security level 1 is
programmed, EA will be internally latched on Reset.
XTAL1
19
21
15
I
Crystal 1:
Input to the inverting oscillator amplifier and input to the internal
clock generator circuits.
XTAL2
18
20
14
O
Crystal 2:
Output from the inverting oscillator amplifier
相關(guān)PDF資料
PDF描述
TS80C51RA2-LCAD High Performance 8-bit Microcontrollers
TS80C51RA2-LCAR High Performance 8-bit Microcontrollers
TS80C51RA2-LCBB High Performance 8-bit Microcontrollers
TS80C51RA2-LCBD High Performance 8-bit Microcontrollers
TS80C51RA2-LCBR GT 35C 35#12 PIN PLUG
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS80C51RA2-LCAD 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers
TS80C51RA2-LCAR 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers
TS80C51RA2-LCB 功能描述:IC MCU 8BIT 256BYTE 30MHZ 44PLCC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:80C 標(biāo)準(zhǔn)包裝:1,500 系列:AVR® ATtiny 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C,LIN,SPI,UART/USART,USI 外圍設(shè)備:欠壓檢測/復(fù)位,POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):16 程序存儲器容量:8KB(4K x 16) 程序存儲器類型:閃存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:帶卷 (TR)
TS80C51RA2-LCBB 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers
TS80C51RA2-LCBD 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers