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參數(shù)資料
| 型號： | XR16L651 |
| 廠商： | Exar Corporation |
| 英文描述： | 2.5V, 3.3V and 5V Low Power UART with 32-Byte FIFO(2.5V, 3.3V和5V 低功耗通用異步接收器/發(fā)送器（帶32字節(jié)先進先出）) |
| 中文描述： | 2.5V，3.3V與5V的低功耗的UART與32字節(jié)的FIFO（2.5伏，3.3伏和5V的低功耗通用異步接收器/發(fā)送器（帶32字節(jié)先進先出）） |
| 文件頁數(shù)： | 10/46頁 |
| 文件大?。?/td> | 516K |
| 代理商： | XR16L651 |
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XR16L651
2.5V, 3.3V AND 5V LOW POWER UART WITH 32-BYTE FIFO
REV. P1.0.0
á
PRELIMINARY
10
2.0
The output function of interrupt, INT, output changes
according to the operating bus type and various fac-
tors. Table 2 sumarizes its behaviour in Intel, Motoro-
la and PC mode of operation. Multiple interrupts can
INTERRUPT
be wire-OR’ed. This is accomplished by setting MCR
bit-5 to a logic 1 and connecting a 1k to 10k ohms re-
sistor between this pin and ground to provide an ac-
ceptable logic 0 level.
T
ABLE
2: I
NTERRUPT
O
UTPUT
(INT, INT#
AND
IRQA) F
UNCTIONS
IM# I
NPUT
(I
NTEL
/
M
OTOROLA
)
PCMODE#
I
NPUT
S3 I
NPUT
MCR
BIT
-5
(INT
TYPE
SELECT
)
MCR
BIT
-3
(IRQ
N
ENABLE
)
I
NTERRUPT
O
UTPUT
(INT, INT#
OR
IRQA)
Intel Bus Mode
1
1
don’t care
0
don’t care
INT is logic 0 for inactive interrupt.
INT is logic 1 for active interrupt (active high)
1
1
don’t care
1
don’t care
INT is tri-state for inactive interrupt
INT is logic 1 for active interupt (open source).
Requires a 1k-10k ohms resistor to GND.
Motorola Bus Mode
0
X
don’t care
0
don’t care
INT# is tri-state for inactive interrupt.
INT# is logic 0 for active interrupt (actie low, open
drain). Requires a 1k-10k ohms resistor to VCC.
0
X
don’t care
1
don’t care
INT# is tri-state.
PC Mode
1
0
0
don’t care
don’t care
IRQA is tri-state. Either IRQB or IRQC is used, see
Table 1.
1
0
1
don’t care
0
IRQA is tri-state.
1
0
1
0
1
IRQA is logic 0 for iactive interrupt.
IRQA is logic 1 for active interrupt (active high).
1
0
1
1
1
IRQA is tri-state for no interrupt.
IRQA is logic 1 for active interrupt (active high,
open source).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16L651CM | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 5.5V UART WITH 32-BYTE FIFO |
| XR16L651CM-0A-EVB | 功能描述:UART 接口集成電路 Supports L651 48 ld TQFP, ISA Interface 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 |
| XR16L651CM-F | 功能描述:UART 接口集成電路 UARTW/32BYTEFIFO 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 |
| XR16L651CMTR-F | 制造商:Exar Corporation 功能描述:UART 1-CH 32Byte FIFO 2.5V/3.3V/5V 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:XR16L651CMTR-F |
| XR16L651IM | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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