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參數(shù)資料
型號(hào): AT80C51RA2-SLSUM
廠商: Atmel
文件頁(yè)數(shù): 7/84頁(yè)
文件大?。?/td> 0K
描述: IC 8051 MCU ROMLESS 44PLCC
標(biāo)準(zhǔn)包裝: 972
系列: 80C
核心處理器: 8051
芯體尺寸: 8-位
速度: 40/20MHz
連通性: UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器類型: ROMless
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
2007-2012 Microchip Technology Inc.
DS70292G-page 17
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
AVSS
P
No
Ground reference for analog modules.
VDD
P
No
Positive supply for peripheral logic and I/O pins.
VCAP
P
No
CPU logic filter capacitor connection.
Vss
P
No
Ground reference for logic and I/O pins.
VREF+
I
Analog
No
Analog voltage reference (high) input.
VREF-
I
Analog
No
Analog voltage reference (low) input.
TABLE 1-1:
PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin
Type
Buffer
Type
PPS
Description
Legend: CMOS = CMOS compatible input or output
Analog = Analog input
P = Power
ST = Schmitt Trigger input with CMOS levels
O = Output
I = Input
TTL = TTL input buffer
PPS = Peripheral Pin Select
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