參數(shù)資料
型號： SC26C92
廠商： NXP Semiconductors N.V.
英文描述： Dual universal asynchronous receiver/transmitter (DUART）(雙通用異步接收器/傳送器)
中文描述： 雙路通用異步接收器/發(fā)送器（杜阿爾特）（雙通用異步接收器/傳送器）
文件頁數(shù)： 5/31頁
文件大?。?/td> 203K
代理商： SC26C92
Philips Semiconductors
Product specification
SC26C92
Dual universal asynchronous receiver/transmitter (DUART)
2000 Jan 31
5
PIN DESCRIPTION
SYMBOL
PKG
40,44
PIN
TYPE
I/O
NAME AND FUNCTION
D0-D7
X
Data Bus:
Bidirectional 3-State data bus used to transfer commands, data and status between the DUART
and the CPU. D0 is the least significant bit.
Chip Enable:
Active-Low input signal. When Low, data transfers between the CPU and the DUART are
enabled on D0-D7 as controlled by the WRN, RDN and A0-A3 inputs. When High, places the D0-D7 lines
in the 3-State condition.
Write Strobe:
When Low and CEN is also Low, the contents of the data bus is loaded into the addressed
register. The transfer occurs on the rising edge of the signal.
Read Strobe:
When Low and CEN is also Low, causes the contents of the addressed register to be
presented on the data bus. The read cycle begins on the falling edge of RDN.
Address Inputs:
Select the DUART internal registers and ports for read/write operations.
Reset:
A High level clears internal registers (SRA, SRB, IMR, ISR, OPR, OPCR), puts OP0-OP7 in the
High state, stops the counter/timer, and puts Channels A and B in the inactive state, with the TxDA and
TxDB outputs in the mark (High) state. Sets MR pointer to MR1 and resets MR0.
Interrupt Request:
Active-Low, open-drain, output which signals the CPU that one or more of the eight
maskable interrupting conditions are true. Requires a pullup resistor.
Crystal 1:
Crystal connection or an external clock input. A crystal of a clock the appropriate frequency
(nominally 3.6864 MHz) must be supplied at all times. For crystal connections see Figure 7, Clock Timing.
Crystal 2:
Crystal connection. See Figure 7. If a crystal is not used this pin must be left open or not driving
more than one TTL equivalent load.
Channel A Receiver Serial Data Input:
The least significant bit is received first. “Mark” is High, “space” is Low.
Channel B Receiver Serial Data Input:
The least significant bit is received first. “Mark” is High, “space” is Low.
Channel A Transmitter Serial Data Output:
The least significant bit is transmitted first. This output is held
in the “mark” condition when the transmitter is disabled, idle or when operating in local loopback mode.
“Mark” is High, “space” is Low.
Channel B Transmitter Serial Data Output:
The least significant bit is transmitted first. This output is
held in the ‘mark’ condition when the transmitter is disabled, idle, or when operating in local loopback mode.
‘Mark’ is High, ‘space’ is Low.
Output 0:
General purpose output or Channel A request to send (RTSAN, active-Low). Can be
deactivated automatically on receive or transmit.
Output 1:
General purpose output or Channel B request to send (RTSBN, active-Low). Can be
deactivated automatically on receive or transmit.
Output 2:
General purpose output, or Channel A transmitter 1X or 16X clock output, or Channel A receiver
1X clock output.
Output 3:
General purpose output or open-drain, active-Low counter/timer output or Channel B transmitter
1X clock output, or Channel B receiver 1X clock output.
Output 4:
General purpose output or Channel A open-drain, active-Low, RxA interrupt ISR[1] output.
Output 5:
General purpose output or Channel B open-drain, active-Low, RxB interrupt ISR[5] output.
Output 6:
General purpose output or Channel A open-drain, active-Low, TxA interrupt ISR[0] output.
Output 7:
General purpose output, or Channel B open-drain, active-Low, TxB interrupt ISR[4] output.
Input 0:
General purpose input or Channel A clear to send active-Low input (CTSAN). Pin has an internal
V
CC
pull-up device supplying 1 to 4 A of current.
Input 1:
General purpose input or Channel B clear to send active-Low input (CTSBN). Pin has an internal
V
CC
pull-up device supplying 1 to 4 A of current.
Input 2:
General purpose input or counter/timer external clock input. Pin has an internal V
CC
pull-up device
supplying 1 to 4 A of current.
Input 3:
General purpose input or Channel A transmitter external clock input (TxCA). When the external
clock is used by the transmitter, the transmitted data is clocked on the falling edge of the clock. Pin has an
internal V
CC
pull-up device supplying 1 to 4 A of current.
Input 4:
General purpose input or Channel A receiver external clock input (RxCA). When the external
clock is used by the receiver, the received data is sampled on the rising edge of the clock. Pin has an
internal V
CC
pull-up device supplying 1 to 4 A of current.
Input 5:
General purpose input or Channel B transmitter external clock input (TxCB). When the external
clock is used by the transmitter, the transmitted data is clocked on the falling edge of the clock. Pin has an
internal V
CC
pull-up device supplying 1 to 4 A of current.
Input 6:
General purpose input or Channel B receiver external clock input (RxCB). When the external
clock is used by the receiver, the received data is sampled on the rising edge of the clock. Pin has an
internal V
CC
pull-up device supplying 1 to 4 A of current.
Power Supply:
+5V supply input.
Ground
CEN
X
I
WRN
X
I
RDN
X
I
A0-A3
RESET
X
X
I
I
INTRN
X
O
X1/CLK
X
I
X2
X
I
RxDA
RxDB
TxDA
X
X
X
I
I
O
TxDB
X
O
OP0
X
O
OP1
X
O
OP2
X
O
OP3
X
O
OP4
OP5
OP6
OP7
IP0
X
X
X
X
X
O
O
O
O
I
IP1
X
I
IP2
X
I
IP3
X
I
IP4
X
I
IP5
X
I
IP6
X
I
V
CC
GND
X
X
I
I
相關PDF資料
PDF描述
SC28L92 3.3V- 5.0V Dual universal asynchronous receiver/transmitter (DUART）(3.3V- 5.0V雙通用異步接收器/傳送器)
SC3011B-1 600.0 MHz Differential Sine-Wave Clock
SC3015B 550.0 MHz Differential Sine-Wave Clock
SC3017B 400.0 MHz Differential Sine-Wave Clock
sc3018b Quartz SAW Frequency Stability
相關代理商/技術參數(shù)
參數(shù)描述
SC26C92A1A 功能描述:UART 接口集成電路 UART DUAL W/FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據速率: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
SC26C92A1A,512 功能描述:UART 接口集成電路 UART DUAL W/FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據速率: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
SC26C92A1A,518 功能描述:UART 接口集成電路 5V 2 CH UART IND TEMP RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據速率: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
SC26C92A1A,529 功能描述:UART 接口集成電路 5V 2CH UART IND TEMP RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據速率: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
SC26C92A1A512 制造商:NXP Semiconductors 功能描述:IC DUAL UART FIFO 1MBPS 5.5V LCC-44
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*