參數(shù)資料
型號: ST16C650ACP40
廠商: EXAR CORP
元件分類: 微控制器/微處理器
英文描述: 2.90V TO 5.5V UART WITH 32-BYTE FIFO
中文描述: 1 CHANNEL(S), 3.125M bps, SERIAL COMM CONTROLLER, PDIP40
封裝: 0.600 INCH, PLASTIC, DIP-40
文件頁數(shù): 22/53頁
文件大小: 666K
代理商: ST16C650ACP40
ST16C650A
2.90V TO 5.5V UART WITH 32-BYTE FIFO
á
REV. 5.0.0
22
2.18
The 650A UART provides an internal loopback capability for system diagnostic purposes. The internal
loopback mode
is enabled by setting MCR register bit-4 to logic 1. All regular UART functions operate normally.
Figure 15
shows how the modem port signals are re-configured. Transmit data from the transmit shift register
output is internally routed to the receive shift register input allowing the system to receive the same data that it
was sending. The TX pin is held at logic 1 or mark condition while RTS# and DTR# are de-asserted, and
CTS#, DSR# CD# and RI# inputs are ignored. Caution: the RX input must be held to a logic 1 during loopback
test else upon exiting the loopback test the UART may detect and report a false “break” signal. Also, Auto
RTS/CTS is not supported during internal loopback.
Internal Loopback
F
IGURE
15. I
NTERNAL
L
OOP
B
ACK
TX
RX
M
I
RTS#
MCR bit-4=1
VCC
VCC
Transmit Shift Register
(THR/FIFO)
Receive Shift Register
(RHR/FIFO)
CTS#
DTR#
DSR#
RI#
CD#
OP1#
OP2#
RTS#
CTS#
DTR#
DSR#
RI#
CD#
VCC
VCC
OP2#
VCC
OP1#
相關PDF資料
PDF描述
ST16C650ACQ48 2.90V TO 5.5V UART WITH 32-BYTE FIFO
ST16C650AIJ44 2.90V TO 5.5V UART WITH 32-BYTE FIFO
ST16C650AIP40 2.90V TO 5.5V UART WITH 32-BYTE FIFO
ST16C650AIQ48 2.90V TO 5.5V UART WITH 32-BYTE FIFO
ST16C650 Voltage Regulator IC; Output Current Max:350mA; Supply Voltage Max:6V; Package/Case:8-TSSOP; Output Current:350mA; Output Voltage:3.3V; Current Rating:30.05A; Leaded Process Compatible:Yes; Output Voltage Max:3.3V RoHS Compliant: Yes
相關代理商/技術參數(shù)
參數(shù)描述
ST16C650ACQ-0A-EB 功能描述:界面開發(fā)工具 Supports C650A 48 ld TQFP, ISA Interface RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
ST16C650ACQ48 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: 制造商:Exar Corporation 功能描述:UART, 48 Pin, Plastic, TQFP
ST16C650ACQ48-F 功能描述:UART 接口集成電路 UART W/32BYTEFIFO 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
ST16C650ACQ48TR-F 制造商:Exar Corporation 功能描述:UART 1-CH 32Byte FIFO 3.3V/5V 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:ST16C650ACQ48TR-F
ST16C650AIJ44 制造商:EXAR 制造商全稱:EXAR 功能描述:2.90V TO 5.5V UART WITH 32-BYTE FIFO