參數(shù)資料
型號(hào)： ST16C554DCJ68TR-F
廠商： Exar Corporation
文件頁數(shù)： 15/39頁
文件大?。?/td> 0K
描述： IC UART FIFO 16B QUAD 68PLCC
標(biāo)準(zhǔn)包裝： 250
特點(diǎn)： *
通道數(shù)： 4，QUART
FIFO's： 16 字節(jié)
規(guī)程： RS232
電源電壓： 2.97 V ~ 5.5 V
帶自動(dòng)流量控制功能： 是
帶故障啟動(dòng)位檢測(cè)功能： 是
帶調(diào)制解調(diào)器控制功能： 是
帶CMOS： 是
安裝類型： 表面貼裝
封裝/外殼： 68-LCC（J 形引線）
供應(yīng)商設(shè)備封裝： 68-PLCC
包裝： 帶卷 (TR)
ST16C554/554D
22
2.97V TO 5.5V QUAD UART WITH 16-BYTE FIFO
REV. 4.0.1
MCR[3]: INT Output Enable
Enable or disable INT outputs to become active or in three-state. This function is associated with the INTSEL
input, see below table for details. This bit is also used to control the OP2# signal during internal loopback
mode. INTSEL pin must be LOW during 68 mode.
Logic 0 = INT (A-D) outputs disabled (three state) in the 16 mode (default). During internal loopback mode,
OP2# is HIGH.
Logic 1 = INT (A-D) outputs enabled (active) in the 16 mode. During internal loopback mode, OP2# is LOW.
MCR[4]: Internal Loopback Enable
Logic 0 = Disable loopback mode (default).
Logic 1 = Enable local loopback mode, see loopback section and Figure 10.
MCR[7:5]: Reserved (Default 0)
4.8
Line Status Register (LSR) - Read/Write
This register is writeable but it is not recommended. The LSR provides the status of data transfers between the
UART and the host. If IER bit-2 is enabled, LSR bit-1 will generate an interrupt immediately and LSR bits 2-4
will generate an interrupt when a character with an error is in the RHR.
LSR[0]: Receive Data Ready Indicator
Logic 0 = No data in receive holding register or FIFO (default).
Logic 1 = Data has been received and can be read from the receive holding register or RX FIFO.
LSR[1]: Receiver Overrun Flag
Logic 0 = No overrun error (default).
Logic 1 = Overrun error. A data overrun error condition occurred in the receive shift register. This happens
when additional data arrives while the FIFO is full. In this case the previous data in the receive shift register
is overwritten. Note that under this condition the data byte in the receive shift register is not transferred into
the FIFO, therefore the data in the FIFO is not corrupted by the error.
LSR[2]: Receive Data Parity Error Tag
Logic 0 = No parity error (default).
Logic 1 = Parity error. The receive character in RHR does not have correct parity information and is suspect.
This error is associated with the character available for reading in RHR.
LSR[3]: Receive Data Framing Error Tag
Logic 0 = No framing error (default).
Logic 1 = Framing error. The receive character did not have a valid stop bit(s). This error is associated with
the character available for reading in RHR.
TABLE 12: INT OUTPUT MODES
INTSEL
PIN
MCR
BIT-3
INT A-D OUTPUTS IN 16 MODE
0
Three-State
0
1
Active
1
X
Active
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參數(shù)描述
ST16C554DCQ-0A-EB 功能描述:界面開發(fā)工具 Supports C554D 64 ld TQFP, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
ST16C554DCQ64 制造商:Exar Corporation 功能描述:
ST16C554DCQ64F 制造商:Exar Corporation 功能描述:
ST16C554DCQ64-F 功能描述:UART 接口集成電路 2.97V-5.5V 16B FIFO temp 0C to 70C; 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
ST16C554DCQ64TR-F 功能描述:UART 接口集成電路 QUAD UART W/16 BYTE FIFO 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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