参数资料
| 型号： | ST16C550CP40-F |
| 厂商： | Exar Corporation |
| 文件页数： | 34/35页 |
| 文件大小： | 0K |
| 描述： | IC INTERFACE UART |
| 标准包装： | 9 |
| 系列： | * |
| 其它名称： | 1016-1759 |
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ST16C550
8
Rev. 5.01
GENERAL DESCRIPTION
The ST16C550 provides serial asynchronous receive
data synchronization, parallel-to-serial and serial-to-
parallel data conversions for both the transmitter and
receiver sections. These functions are necessary for
converting the serial data stream into parallel data that
is required with digital data systems. Synchronization
for the serial data stream is accomplished by adding
start and stops bits to the transmit data to form a data
character (character orientated protocol). Data integ-
rity is insured by attaching a parity bit to the data
character. The parity bit is checked by the receiver for
any transmission bit errors. The electronic circuitry to
provide all these functions is fairly complex especially
when manufactured on a single integrated silicon
chip. The ST16C550 represents such an integration
with greatly enhanced features. The ST16C550 is
fabricated with an advanced CMOS process.
The ST16C550 is an upward solution that provides 16
bytes of transmit and receive FIFO memory, instead
of 1 byte provided in the 16C450. The ST16C550 is
designed to work with high speed modems and shared
network environments, that require fast data process-
ing time. Increased performance is realized in the
ST16C550 by the larger transmit and receive FIFO’s.
This allows the external processor to handle more
networking tasks within a given time. The 4 selectable
levels of FIFO trigger provided for maximum data
throughput performance especially when operating in
a multi-channel environment. The combination of the
above greatly reduces the bandwidth requirement of
the external controlling CPU, increases performance,
and reduces power consumption.
The ST16C550 is capable of operation to 1.5Mbps
with a 24 MHz crystal or external clock input.
With a crystal of 14.7464 MHz and through a software
option, the user can select data rates up to 460.8Kbps
or 921.6Kbps.
FUNCTIONAL DESCRIPTIONS
Internal Registers
The ST16C550 provides 12 internal registers for
monitoring and control. These registers are shown in
Table 3 below. These registers function as data hold-
ing registers (THR/RHR), interrupt status and control
registers (IER/ISR), a FIFO control register (FCR),
line status and control registers, (LCR/LSR), modem
status and control registers (MCR/MSR), program-
mable data rate (clock) control registers (DLL/DLM),
and a user assessable scratchpad register (SPR).
相关PDF资料 |
PDF描述 |
|---|---|
| ST16C552IJ68TR-F | IC UART FIFO 16B DUAL 68PLCC |
| ST16C554DIQ64TR-F | IC UART FIFO 16B QUAD 64LQFP |
| ST16C580IQ48-F | IC UART FIFO 16B 48TQFP |
| ST16C650AIJ44-F | IC UART FIFO 32B 44PLCC |
| ST16C654DIQ64-F | IC UART FIFO 64B QUAD 64LQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST16C550CP40-F | 制造商:Exar Corporation 功能描述:IC UART INTERFACE 1.5Mbps 5.5V DIP-40 |
| ST16C550CQ-0A-EVB | 功能描述:界面开发工具 Supports C550 48 ld TQFP, ISA Interface RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| ST16C550CQ48 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST16C550CQ48-F | 功能描述:UART 接口集成电路 2.97V-5.5V 16B FIFO temp 0C to 70C; UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| ST16C550CQ48TR-F | 功能描述:UART 接口集成电路 UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
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