参数资料
型号: SC16IS752IBS,157
厂商: NXP Semiconductors
文件页数: 32/60页
文件大小: 0K
描述: IC DUAL UART 64BYTE 32HVQFN
标准包装: 2,450
特点: 低电流
通道数: 2,DUART
FIFO's: 64 字节
规程: RS232,RS485
电源电压: 2.5V, 3.3V
带自动流量控制功能:
带IrDA 编码器/解码器:
带故障启动位检测功能:
带调制解调器控制功能:
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-HVQFN(5x5)
包装: 托盘
配用: 568-4000-ND - DEMO BOARD SPI/I2C TO DUAL UART
568-3510-ND - DEMO BOARD SPI/I2C TO UART
其它名称: 935279288157
SC16IS752IBS
SC16IS752IBS-ND
SC16IS752_SC16IS762
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 9 — 22 March 2012
38 of 60
NXP Semiconductors
SC16IS752; SC16IS762
Dual UART with I2C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
In a single master system, the ‘Repeated START’ mechanism may be more efficient than
terminating each transfer with a STOP and starting again. In a multimaster environment,
the determination of which format is more efficient could be more complicated, as when a
master is using repeated STARTs occupies the bus for a long time, and thus preventing
other devices from initiating transfers.
Fig 17. I2C-bus data formats
002aab458
DATA
SLAVE ADDRESS
master write:
S
W
A
DATA
A
P
data transferred
(n bytes + acknowledge)
START condition
STOP condition
acknowledge
write
DATA
SLAVE ADDRESS
master read:
S
R
A
DATA
A
NA
P
data transferred
(n bytes + acknowledge)
START condition
STOP condition
acknowledge
not
acknowledge
read
DATA
SLAVE ADDRESS
combined
formats:
S
R/W
A
DATA
A
P
data transferred
(n bytes + acknowledge)
START condition
STOP condition
acknowledge
read or
write
SLAVE ADDRESS
Sr
R/W
A
repeated
START condition
acknowledge
read or
write
direction of transfer
may change at this point
data transferred
(n bytes + acknowledge)
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