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參數(shù)資料
| 型號： | XR16C854 |
| 廠商： | Exar Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO |
| 中文描述： | 四路與異步接收/發(fā)送FIFO的計數(shù)器,128字節(jié)FIFO |
| 文件頁數(shù)： | 7/51頁 |
| 文件大?。?/td> | 476K |
| 代理商： | XR16C854 |
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XR16C854
7
Rev. 1.00P
SYMBOL DESCRIPTION
Symbol
Pin
100
Signal
type
Pin Description
68
64
dition exists. Interrupt conditions include: receiver errors,
available receiver buffer data, transmit buffer empty, or
when a modem status flag is detected. When the 68 mode
is selected, the functions of these pins are reassigned. 68
mode functions are described under the their respective
name/pin headings.
INTSEL
65
87
-
I
Interrupt Select. (active high, with internal pull-down) - This
function is associated with the 16 mode only. When the 16
mode is selected, this pin can be used in conjunction with
MCR bit-3 to enable or disable the three state interrupts, INT
A-D or override MCR bit-3 and force continuous interrupts.
Interrupt outputs are enabled continuously by making this
pin a logic 1. Making this pin a logic 0 allows MCR bit-3 to
control the three state interrupt output. In this mode, MCR
bit-3 is set to a logic 1 to enable the three state outputs.
This pin is disabled in the 68 mode. Due to pin limitations on
64 pin packages, this pin is not available. To cover this
limitation, two 64 pin QFP package versions are offered.
The XR16C854DCV operates in the continuos interrupt
enable mode by bonded this pin to VCC internally. The
XR16C854CV operates with MCR bit-3 control by bonding
this pin to GND.
-IOR
52
66
40
I
Input/Output Read. (active low Strobe) - This function is
associated with the 16 mode only. A logic 0 transition on this
pin will load the contents of an Internal register defined by
address bits A0-A2 onto the XR16C854 data bus (D0-D7)
for access by an external CPU. This pin is disabled in the 68
mode.
-IOW
18
15
9
I
Input/Output Write. (active low strobe) - This function is
associated with the 16 mode only. A logic 0 transition on this
pin will transfer the contents of the data bus (D0-D7) from
the external CPU to an internal register that is defined by
address bits A0/A2. When the 16 mode is selected (68/100
pin devices), this pin functions as R/-W, see definition under
R/W.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XR16C854CJ | QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO |
| XR16C854CQ | QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO |
| XR16C854CV | QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO |
| XR16C854DCV | QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO |
| XR16C854DIV | QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16C854CJ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| XR16C854CJ-0A-EVB | 功能描述:UART 接口集成電路 Supports C854 68 ld PLCC, 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 |
| XR16C854CJ-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 |
| XR16C854CJTR-F | 制造商:Exar Corporation 功能描述:XR16C854CJTR-F |
| XR16C854CQ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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