參數(shù)資料
型號(hào)： SC16IS740IPW
廠商： NXP Semiconductors N.V.
元件分類： 連接器件
英文描述： Single UART with I2C-bus-SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support
封裝： SC16IS740IPW/Q900<SOT403-1 (TSSOP16)|<<http://www.nxp.com/packages/SOT403-1.html<1<Always Pb-free,;SC16IS740IPW<SOT403-1 (TSSOP16)|<<http://www.nxp.com/packages/SOT403-1.
文件頁(yè)數(shù)： 11/62頁(yè)
文件大?。?/td> 308K
代理商： SC16IS740IPW
SC16IS740_750_760_6
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 06 — 13 May 2008
11 of 62
NXP Semiconductors
SC16IS740/750/760
Single UART with I
2
C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
7.2.2
Auto CTS
Figure 10
shows CTS functional timing. The transmitter circuitry checks CTS before
sending the next data byte. When CTS is active, the transmitter sends the next byte. To
stop the transmitter from sending the following byte, CTS must be deasserted before the
middle of the last stop bit that is currently being sent. The auto CTS function reduces
interrupts to the host system. When flow control is enabled, CTS level changes do not
trigger host interrupts because the device automatically controls its own transmitter.
Without auto CTS, the transmitter sends any data present in the transmit FIFO and a
receiver overrun error may result.
7.3 Software flow control
Software flow control is enabled through the enhanced feature register and the Modem
Control Register. Different combinations of software flow control can be enabled by setting
different combinations of EFR[3:0].
Table 3
shows software flow control options.
(1) When CTS is LOW, the transmitter keeps sending serial data out.
(2) When CTS goes HIGH before the middle of the last stop bit of the current character, the transmitter finishes sending the current
character, but it does not send the next character.
(3) When CTS goes from HIGH to LOW, the transmitter begins sending data again.
Fig 10. CTS functional timing
start
bit 0 to bit 7
stop
TX
CTS
002aab041
start
stop
bit 0 to bit 7
Table 3.
EFR[3]
0
1
0
1
X
X
X
1
Software flow control options (EFR[3:0])
EFR[2]
EFR[1]
0
X
0
X
1
X
1
X
X
0
X
1
X
0
0
1
EFR[0]
X
X
X
X
0
0
1
1
TX, RX software flow control
no transmit flow control
transmit Xon1, Xoff1
transmit Xon2, Xoff2
transmit Xon1 and Xon2, Xoff1 and Xoff2
no receive flow control
receiver compares Xon1, Xoff1
receiver compares Xon2, Xoff2
transmit Xon1, Xoff1
receiver compares Xon1 or Xon2, Xoff1 or Xoff2
transmit Xon2, Xoff2
receiver compares Xon1 or Xon2, Xoff1 or Xoff2
transmit Xon1 and Xon2, Xoff1 and Xoff2
receiver compares Xon1 and Xon2, Xoff1 and Xoff2
no transmit flow control
receiver compares Xon1 and Xon2, Xoff1 and Xoff2
0
1
1
1
1
1
1
1
0
0
1
1
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SC16IS740IPW,112 功能描述:UART 接口集成電路 UART SINGLE W/FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16IS740IPW,128 功能描述:UART 接口集成電路 I2C/SPI-SLAVEBRIDGE RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16IS740IPW/Q900, 功能描述:UART 接口集成電路 I2C/SPI-UART BRIDGE W/IRDA RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16IS740IPW/Q900,128 制造商:NXP Semiconductors 功能描述:0
SC16IS740IPW112 制造商:NXP Semiconductors 功能描述:IC SINGLE UART FIFO 5MBPS 3.6V TSSOP-16 制造商:NXP Semiconductors 功能描述:IC UART FIFO 5MBPS 3.6V 16TSSOP
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