參數(shù)資料
型號: AT89C51IC2-SLSIL
廠商: Atmel
文件頁數(shù): 114/140頁
文件大小: 0K
描述: IC 8051 MCU FLASH 32K 44PLCC
標準包裝: 27
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: I²C,SPI,UART/USART
外圍設備: POR,PWM,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
RAM 容量: 1.25K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 3.6 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
75
AT89C51IC2
4301D–8051–02/08
Figure 29. Data Transmission Format (CPHA = 0)
Figure 30. Data Transmission Format (CPHA = 1)
Figure 31. CPHA/SS Timing
As shown in Figure 29, the first SCK edge is the MSB capture strobe. Therefore, the
Slave must begin driving its data before the first SCK edge, and a falling edge on the SS
pin is used to start the transmission. The SS pin must be toggled high and then low
between each Byte transmitted (Figure 31).
Figure 30 shows an SPI transmission in which CPHA is ’1’. In this case, the Master
begins driving its MOSI pin on the first SCK edge. Therefore, the Slave uses the first
SCK edge as a start transmission signal. The SS pin can remain low between transmis-
sions (Figure 31). This format may be preffered in systems having only one Master and
only one Slave driving the MISO data line.
MSB
bit6
bit5
bit4
bit3
bit2
bit1
LSB
bit6
bit5
bit4
bit3
bit2
bit1
MSB
LSB
1
3
2
4
5
6
7
8
Capture Point
SS (to Slave)
MISO (from Slave)
MOSI (from Master)
SCK (CPOL = 1)
SCK (CPOL = 0)
SPEN (Internal)
SCK Cycle Number
MSB
bit6
bit5
bit4
bit3
bit2
bit1
LSB
bit6
bit5
bit4
bit3
bit2
bit1
MSB
LSB
1
3
2
4
5
6
7
8
Capture Point
SS (to Slave)
MISO (from Slave)
MOSI (from Master)
SCK (CPOL = 1)
SCK (CPOL = 0)
SPEN (Internal)
SCK Cycle Number
Byte 1
Byte 2
Byte 3
MISO/MOSI
Master SS
Slave SS
(CPHA = 1)
Slave SS
(CPHA = 0)
相關PDF資料
PDF描述
AT89C51CC03U-RLTIM IC 8051 MCU FLASH 64K 44VQFP
PIC24EP64MC204-I/PT MCU 16BIT 64KB FLASH 44TQFP
AT89C51CC03U-RDTIM IC 8051 MCU FLASH 64K 64VQFP
AT89C51CC03U-7CTIM IC 8051 MCU FLASH 64K 64BGA
AT89C51CC03C-S3SIM IC 8051 MCU FLASH 64K 52PLCC
相關代理商/技術參數(shù)
參數(shù)描述
AT89C51IC2-SLSIM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Flash Microcontroller with 2-wire Interface
AT89C51IC2-SLSUL 功能描述:8位微控制器 -MCU C51IC2 32K FLASH I2C 32KHz 3V 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
AT89C51IC2-SLSUM 功能描述:8位微控制器 -MCU C51IC2 32K FLASH I2C 32KHz 5V 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
AT89C51ID2 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Flash Microcontroller
AT89C51ID2_0309 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Flash Microcontroller