參數(shù)資料
型號: TL16C554AI
廠商: Texas Instruments, Inc.
英文描述: ASYNCHRONOUS-COMMUNICATIONS ELEMENT
中文描述: 異步通信元
文件頁數(shù): 35/40頁
文件大?。?/td> 605K
代理商: TL16C554AI
TL16C554A, TL16C554AI
ASYNCHRONOUS-COMMUNICATIONS ELEMENT
SLLS509A
AUGUST 2001
REVISED JULY 2003
35
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
scratchpad register
The scratchpad register is an 8-bit read/write register that has no effect on any ACE channel. It is intended to
be used by the programmer to hold data temporarily.
TXRDY operation
In mode 0, TXRDY is asserted (low) when the transmit FIFO is empty; it is released (high) when the FIFO
contains at least one byte. In this way, the FIFO is written with 16 bytes when TXRDY is asserted (low).
In mode 1, TXRDY is asserted (low) when the transmit FIFO is not full; in this mode, the transmit FIFO is written
with another byte when TXRDY is asserted (low).
Driver
Optional
Driver
External
Clock
Optional
Clock
Output
Oscillator Clock
to Baud
Generator Logic
VCC
Crystal
Oscillator Clock
to Baud
Generator Logic
RX2
VCC
C1
RP
C2
XTAL1
XTAL1
XTAL2
XTAL2
TYPICAL CRYSTAL OSCILLATOR NETWORK
CRYSTAL
RP
1 M
1 M
RX2
1.5 k
1.5 k
C1
C2
3.1 MHz
10
30 pF
40
60 pF
1.8 MHz
10
30 pF
40
60 pF
Figure 24. Typical Clock Circuits
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TL16C554AIFN 功能描述:UART 接口集成電路 Quad UART w/ 16-Byte FIFOs 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
TL16C554AIFNR 功能描述:UART 接口集成電路 Quad UART w/ 16-Byte FIFOs 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
TL16C554AIPN 功能描述:UART 接口集成電路 Quad UART with 16-Byte FIFOs 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
TL16C554AIPNG4 功能描述:UART 接口集成電路 Quad UART with 16-Byte FIFOs 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
TL16C554AIPNR 功能描述:UART 接口集成電路 Quad UART with 16-Byte FIFOs 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