參數(shù)資料
型號(hào): ST16C1551
廠商: Exar Corporation
英文描述: UART with 16-Byte FIFO(通用異步接收器/發(fā)送器(帶16字節(jié)的先進(jìn)先出))
中文描述: 的UART具有16字節(jié)FIFO(通用異步接收器/發(fā)送器(帶16字節(jié)的先進(jìn)先出))
文件頁數(shù): 6/32頁
文件大?。?/td> 418K
代理商: ST16C1551
ST16C1550/51
6
Rev. 3.10
types except the 28 pin ST16C1551. The crystal oscillator
output or buffered clock output should be left open if an
external clock is connected to XTAL1.
-CD
27
27
40
I
Carrier Detect (active low) - A logic 0 on this pin indicates
that a carrier has been detected by the modem.
-CTS
25
25
34
I
Clear to Send (active low) - A logic 0 on the -CTS pin
indicates the modem or data set is ready to accept transmit
data from the 155X. Status can be tested by reading MSR
bit-4. This pin has no effect on the UARTs transmit or
receive operation.
-DSR
26
26
39
I
Data Set Ready (active low) - A logic 0 on this pin indicates
the modem or data set is powered-on and is ready for data
exchange with the UART. This pin has no effect on the
UARTs transmit or receive operation.
-DTR
23
23
32
O
Data Terminal Ready (active low) - A logic 0 on this pin
indicates that the 155X is powered-on and ready. This pin
can be controlled via the modem control register. Writing a
logic 1 to MCR bit-0 will set the -DTR output to logic 0,
enabling the modem. This pin will be a logic 1 after writing
a logic 0 to MCR bit-0, or after a reset. This pin has no effect
on the UARTs transmit or receive operation.
-RI
17
16
21
I
Ring Indicator (active low) - A logic 0 on this pin indicates the
modem has received a ringing signal from the telephone
line. A logic 1 transition on this input pin will generate an
interrupt.
-RTS
22
22
31
O
Request to Send (active low) - A logic 0 on the -RTS pin
indicates the transmitter has data ready and waiting to send.
Writing a logic 1 in the modem control register (MCR bit-1)
will set this pin to a logic 0 indicating data is available. After
a reset this pin will be set to a logic 1. This pin has no effect
on the UARTs transmit or receive operation.
RX
9
9
7
I
Receive Data - This input is associated with individual serial
channel data to the 155X receive input circuit. The RX signal
SYMBOL DESCRIPTION
Symbol
Pin
28
Signal
type
Pin Description
28
48
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PDF描述
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ST16C2550CP40 Power Supply IC; Supply Voltage Max:6V; Output Voltage:1.3V; Package/Case:20-TSSOP; Leaded Process Compatible:No; Output Voltage Max:1.3V; Peak Reflow Compatible (260 C):No; Supply Voltage Min:2.7V; Mounting Type:Surface Mount
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