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参数资料
型号： AT89C51IC2-SLSIL
厂商： Atmel
文件页数： 132/140页
文件大小： 0K
描述： IC 8051 MCU FLASH 32K 44PLCC
标准包装： 27
系列： 89C
核心处理器： 8051
芯体尺寸： 8-位
速度： 40MHz
连通性： I²C，SPI，UART/USART
外围设备： POR，PWM，WDT
输入/输出数： 34
程序存储器容量： 32KB（32K x 8）
程序存储器类型： 闪存
RAM 容量： 1.25K x 8
电压 - 电源 (Vcc/Vdd)： 2.7 V ~ 3.6 V
振荡器型： 外部
工作温度： -40°C ~ 85°C
封装/外壳： 44-LCC（J 形引线）
包装： 管件
91
AT89C51IC2
4301D–8051–02/08
Table 68. Status in master transmitter mode
Status
Code
SSSTA
Status of the Two-
wire Bus and Two-
wire Hardware
Application software response
Next Action Taken by Two-wire Hardware
To/From SSDAT
To SSCON
SSSTA
SSSTO
SSI
SSAA
08h
A START condition has
been transmitted
Write SLA+W
X
0
X
SLA+W will be transmitted.
10h
A repeated START
condition has been
transmitted
Write SLA+W
Write SLA+R
X
0
X
SLA+W will be transmitted.
SLA+R will be transmitted.
Logic will switch to master receiver mode
18h
SLA+W has been
transmitted; ACK has
been received
Write data byte
No SSDAT action
0
1
0
1
0
1
0
X
Data byte will be transmitted.
Repeated START will be transmitted.
STOP condition will be transmitted and SSSTO flag
will be reset.
STOP condition followed by a START condition will
be transmitted and SSSTO flag will be reset.
20h
SLA+W has been
transmitted; NOT ACK
has been received
Write data byte
No SSDAT action
0
1
0
1
0
1
0
X
Data byte will be transmitted.
Repeated START will be transmitted.
STOP condition will be transmitted and SSSTO flag
will be reset.
STOP condition followed by a START condition will
be transmitted and SSSTO flag will be reset.
28h
Data byte has been
transmitted; ACK has
been received
Write data byte
No SSDAT action
0
1
0
1
0
1
0
X
Data byte will be transmitted.
Repeated START will be transmitted.
STOP condition will be transmitted and SSSTO flag
will be reset.
STOP condition followed by a START condition will
be transmitted and SSSTO flag will be reset.
30h
Data byte has been
transmitted; NOT ACK
has been received
Write data byte
No SSDAT action
0
1
0
1
0
1
0
X
Data byte will be transmitted.
Repeated START will be transmitted.
STOP condition will be transmitted and SSSTO flag
will be reset.
STOP condition followed by a START condition will
be transmitted and SSSTO flag will be reset.
38h
Arbitration lost in
SLA+W or data bytes
No SSDAT action
0
1
0
X
Two-wire bus will be released and not addressed
slave mode will be entered.
A START condition will be transmitted when the bus
becomes free.
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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 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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