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參數(shù)資料
| 型號(hào)： | XR16C854CQ |
| 廠商： | EXAR CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO |
| 中文描述： | 4 CHANNEL(S), 2M bps, SERIAL COMM CONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, PLASTIC, QFP-100 |
| 文件頁數(shù)： | 5/51頁 |
| 文件大?。?/td> | 476K |
| 代理商： | XR16C854CQ |
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XR16C854
5
Rev. 1.00P
SYMBOL DESCRIPTION
Symbol
Pin
100
Signal
type
Pin Description
68
64
16/-68
31
36
-
I
16/68 Interface Type Select (input with internal pull-up). -
This input provides the 16 (Intel) or 68 (Motorola) bus
interface type select. The functions of -IOR, -IOW, INT A-
D, and -CS A-D are re-assigned with the logical state of this
pin. When this pin is a logic 1, the 16 mode interface 16C554
is selected. When this pin is a logic 0, the 68 mode interface
(68C554) is selected. When this pin is a logic 0, -IOW is re-
assigned to R/-W, RESET is re-assigned to -RESET, -IOR
is not used, and INT A-D(s) are connected in a WIRE-OR
configuration. The WIRE-OR outputs are connected inter-
nally to the open source IRQ signal output. This pin is not
available on 64 pin packages which operate in the 16 mode
only.
A0
34
39
24
I
Address-0 Select Bit. Internal registers address selection in
16 and 68 modes.
A1
33
38
23
I
Address-1 Select Bit. Internal registers address selection in
16 and 68 modes.
A2
32
37
22
I
Address-2 Select Bit. - Internal registers address selection
in 16 and 68 modes.
A3-A4
20,50
17,64
-
I
Address 3-4 Select Bits. - When the 68 mode is selected,
these pins are used to address or select individual UARTs
(providing -CS is a logic 0). In the 16 mode, these pins are
reassigned as chip selects, see -CSB and -CSC. These pins
are not available on 64 pin packages which operate in the
16 mode only.
CLKSEL
30
35
-
I
Clock Select. - The 1X or 4X pre-scaleable clock is selected
by this pin. The 1X clock is selected when CLKSEL is a logic
1 (connected to VCC) or the 4X is selected when CLKSEL
is a logic 0 (connected to GND). MCR bit-7 can override the
state of this pin following reset or initialization (see MCR bit-
7). This pin is not available on 64 pin packages which
provide MCR bit-7 selection only.
-CS
16
13
-
I
Chip Select. (active low) - In the 68 mode, this pin functions
as a multiple channel chip enable. In this case, all four
相關(guān)PDF資料 |
PDF描述 |
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| 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 |
| XR16C854IJ | QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO |
| XR16C854IQ | 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 |
|---|---|
| XR16C854CQ-0A-EVB | 功能描述:UART 接口集成電路 Supports C854 100 ld QFP, 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 |
| XR16C854CQ-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 |
| XR16C854CQTR-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 |
| XR16C854CV | 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO |
| XR16C854CV-0A-EVB | 功能描述:UART 接口集成電路 Supports C854 64 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 |
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