參數(shù)資料
型號(hào)： 935263294551
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 微控制器/微處理器
英文描述： 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQFP44
封裝： 10 X 10 X 1.75 MM, PLASTIC, QFP-44
文件頁(yè)數(shù)： 40/48頁(yè)
文件大?。?/td> 324K
代理商： 935263294551
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SC28L92
Information as of 2000-08-23
SC28L92; 3.3V-5.0V Dual Universal Asynchronous Receiver/Transmitter (DUART)
The SC28L92 is a pin and function replacement for the SCC2692 and SC26C92 operating at 3.3 or 5 volts supply with added features and
deeper FIFOs. Its configuration on power up is that of the SC26C92. Its differences from the 2692 are: 16 character receiver, 16 character
transmit FIFOs, watch dog timer for each receiver, mode register 0 is added, extended baud rate and overall faster speeds, programmable
receiver and transmitter interrupts. (Neither the SC26C92 nor the SCC2692 is being discontinued.)
Pin programming will allow the device to operate with either the Motorola or Intel bus interface. The bit 3 of the MR0a register allows the
device to operate in an 8 byte FIFO mode if strict compliance with the SC26C92 FIFO structure is required.
The Philips Semiconductors SC28L92 Dual Universal Asynchronous Receiver/Transmitter (DUART) is a single-chip CMOS-LSI
communications device that provides two full-duplex asynchronous receiver/transmitter channels in a single package. It interfaces directly
with microprocessors and may be used in a polled or interrupt driven system with modem and DMA interface.
The operating mode and data format of each channel can be programmed independently. Additionally, each receiver and transmitter can
select its operating speed as one of 28 fixed baud rates; a 16X clock derived from a programmable counter/timer, or an external 1X or 16X
clock. The baud rate generator and counter/timer can operate directly from a crystal or from external clock inputs. The ability to
independently program the operating speed of the receiver and transmitter make the DUART particularly attractive for dual-speed channel
applications such as clustered terminal systems.
Each receiver and transmitter is buffered by 8 or 16 character FIFOs to minimize the potential of receiver overrun, transmitter underrun and
to reduce interrupt overhead in interrupt driven systems. In addition, a flow control capability is provided via RTS/CTS signaling to disable a
remote transmitter when the receiver buffer is full.
Also provided on the SC28L92 are a multipurpose 7-bit input port and a multipurpose 8-bit output port. These can be used as general
purpose I/O ports or can be assigned specific functions (such as clock inputs or status/interrupt outputs) under program control.
The SC28L92 is available in two package versions: a 44-pin PLCC and 44-pin plastic quad flat pack (PQFP).
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Description
相關(guān)PDF資料
PDF描述
935263293518 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQCC44
935263294528 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQFP44
07LC-10T050 ISOLATED DC/DC CONVERTERS 48V Input / 5V/2A or 12V/1A or 24V/0.5A Output
07LC-10T120 ISOLATED DC/DC CONVERTERS 48V Input / 5V/2A or 12V/1A or 24V/0.5A Output
07LC-10T240 ISOLATED DC/DC CONVERTERS 48V Input / 5V/2A or 12V/1A or 24V/0.5A Output
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