參數(shù)資料
型號： AT89C51CC02UA-TISUM
廠商： Atmel
文件頁數(shù)： 127/159頁
文件大?。?/td> 0K
描述： IC 8051 MCU 16K FLASH 28-SOIC
產品培訓模塊： MCU Product Line Introduction
標準包裝： 972
系列： AT89C CAN
核心處理器： 8051
芯體尺寸： 8-位
速度： 40MHz
連通性： CAN，UART/USART
外圍設備： POR，PWM，WDT
輸入/輸出數(shù)： 20
程序存儲器容量： 16KB（16K x 8）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 2K x 8
RAM 容量： 512 x 8
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 5.5 V
數(shù)據轉換器： A/D 8x10b
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 28-SOIC（0.295"，7.50mm 寬）
包裝： 管件
產品目錄頁面： 616 (CN2011-ZH PDF)
配用： AT89OCD-01-ND - USB EMULATOR FOR AT8XC51 MCU
7
AT/T89C51CC02
4126L–CAN–01/08
I/O Configurations
Each Port SFR operates via type-D latches, as illustrated in Figure 1 for Ports 3 and 4. A
CPU ’write to latch’ signal initiates transfer of internal bus data into the type-D latch. A
CPU ’read latch’ signal transfers the latched Q output onto the internal bus. Similarly, a
’read pin’ signal transfers the logical level of the Port pin. Some Port data instructions
activate the ’read latch’ signal while others activate the ’read pin’ signal. Latch instruc-
tions are referred to as Read-Modify-Write instructions. Each I/O line may be
independently programmed as input or output.
Port Structure
Figure 1 shows the structure of Ports, which have internal pull-ups. An external source
can pull the pin low. Each Port pin can be configured either for general-purpose I/O or
for its alternate input output function.
To use a pin for general-purpose output, set or clear the corresponding bit in the Px reg-
ister (x = 1 to 4). To use a pin for general-purpose input, set the bit in the Px register.
This turns off the output FET drive.
To configure a pin for its alternate function, set the bit in the Px register. When the latch
is set, the ’alternate output function’ signal controls the output level (See Figure 1). The
operation of Ports is discussed further in ’Quasi-Bi-directional Port Operation’
paragraph.
Figure 1. Ports Structure
Note:
1. The internal pull-up can be disabled on P1 when analog function is selected.
D
CL
Q
LATCH
INTERNAL
WRITE
TO
LATCH
READ
PIN
READ
LATCH
ALTERNATE
OUTPUT
FUNCTION
VCC
INTERNAL
PULL-UP (1)
ALTERNATE
INPUT
FUNCTION
BUS
P2.x
P3.x
P4.x
P1.x
(1)
相關PDF資料
PDF描述
MUSB-C211-30 CONN RCPT USB STACK STD W/HEADER
VE-JVR-IY-F2 CONVERTER MOD DC/DC 7.5V 50W
AT89C51CC02CA-RATUM IC 8051 MCU FLASH 16K 32-VQFP
AT89C51CC02UA-RATUM IC 8051 MCU 16K FLASH 32-VQFP
MUSB-A311-30 CONN RCPT USB TO USB SGL STD
相關代理商/技術參數(shù)
參數(shù)描述
AT89C51CC02UA-TUSUM 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 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
AT89C51CC03 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Enhanced 8-bit MCU with CAN Controller and Flash Memory
AT89C51CC03_03 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Enhanced 8-bit MCU with CAN Controller and Flash Memory
AT89C51CC03_06 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Enhanced 8-bit MCU with CAN Controller and Flash Memory
AT89C51CC03_08 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:CAN Microcontrollers
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