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參數(shù)資料
| 型號(hào)： | XR16L2750IJ |
| 廠商： | EXAR CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 2.25V TO 5.5V DUART WITH 64-BYTE FIFO |
| 中文描述： | 2 CHANNEL(S), 6.25M bps, SERIAL COMM CONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁(yè)數(shù)： | 9/49頁(yè) |
| 文件大?。?/td> | 602K |
| 代理商： | XR16L2750IJ |
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XR16L2750
2.25V TO 5.5V DUART WITH 64-BYTE FIFO
REV. 1.0.0
á
9
2.8
The INTA and INTB interrupt output changes according to the operating mode and enhanced features setup.
Table 3
and 4
summarize the operating behavior for the transmitter and receiver. Also see
Figures 18
through 23
.
INTA and INTB Outputs
2.9
The 2750 includes an on-chip oscillator (XTAL1 and XTAL2) to produce a clock for both UART sections in the
device. The CPU data bus does not require this clock for bus operation. The crystal oscillator provides a
system clock to the Baud Rate Generators (BRG) section found in each of the UART. XTAL1 is the input to the
oscillator or external clock buffer input with XTAL2 pin being the output. Please note that the input XTAL1 is not
5V tolerant and so the maximum at the pin should be VCC. For programming details, see “Programmable Baud
Rate Generator.”
Crystal Oscillator or External Clock Input
T
ABLE
3: INTA
AND
INTB P
INS
O
PERATION
FOR
T
RANSMITTER
Auto RS485
Mode
FCR B
IT
-0 = 0
(FIFO D
ISABLED
)
FCR B
IT
-0 = 1
(FIFO E
NABLED
)
INTA/B Pin
NO
0 = a byte in THR
1 = THR empty
0 = FIFO above trigger level
1 = FIFO below trigger level or FIFO empty
INTA/B Pin
YES
0 = a byte in THR
1 = transmitter empty
0 = FIFO above trigger level
1 = FIFO below trigger level or transmitter empty
T
ABLE
4: INTA
AND
INTB P
IN
O
PERATION
F
OR
R
ECEIVER
FCR B
IT
-0 = 0
(FIFO D
ISABLED
)
FCR B
IT
-0 = 1
(FIFO E
NABLED
)
INTA/B Pin
0 = no data
1 = 1 byte
0 = FIFO below trigger level
1 = FIFO above trigger level
F
IGURE
4. T
YPICAL
OSCILLATOR
CONNECTIONS
C1
22-47 pF
C2
22-47 pF
Y1
1.8432 MHz
to
24 MHz
R1
0-120
(Optional)
R2
500 Κ 1 Μ
XTAL1
XTAL2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XR16L2750IM | 2.25V TO 5.5V DUART WITH 64-BYTE FIFO |
| XR16L2750 | 2.25V TO 5.5V DUART WITH 64-BYTE FIFO |
| XR16L2751 | 2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE |
| XR16L2751CM | 2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE |
| XR16L2751IM | 2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16L2750IJ-F | 功能描述:UART 接口集成電路 UART 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 |
| XR16L2750IM | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 5.5V DUART WITH 64-BYTE FIFO |
| XR16L2750IM-F | 功能描述:UART 接口集成電路 2.25V-5.5V 64B FIFO temp -45 to 85C;UART 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 |
| XR16L2750IMTR-F | 功能描述:UART 接口集成電路 UART 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 |
| XR16L2751 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE |
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