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参数资料
| 型号： | SC16C2550IB48,151 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 46/46页 |
| 文件大小： | 0K |
| 描述： | IC UART DUAL W/FIFO 48-LQFP |
| 标准包装： | 250 |
| 特点： | 2 通道 |
| 通道数： | 2，DUART |
| FIFO's： | 16 字节 |
| 电源电压： | 2.5V，3.3V，5V |
| 带自动流量控制功能： | 是 |
| 带IrDA 编码器/解码器： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 托盘 |
| 其它名称： | 568-3261 935270020151 SC16C2550IB48-S |
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Philips Semiconductors
SC16C2550
Dual UART with 16 bytes of transmit and receive FIFOs and IrDA
encoder/decoder
Product data
Rev. 03 — 19 June 2003
9 of 46
9397 750 11621
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
6.
Functional description
The SC16C2550 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 stop bits to the transmit
data to form a data character (character orientated protocol). Data integrity 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
SC16C2550 represents such an integration with greatly enhanced features. The
SC16C2550 is fabricated with an advanced CMOS process.
The SC16C2550 is an upward solution that provides a dual UART capability with
16 bytes of transmit and receive FIFO memory, instead of none in the 16C2450. The
SC16C2550 is designed to work with high speed modems and shared network
environments that require fast data processing time. Increased performance is
realized in the SC16C2550 by the transmit and receive FIFOs. This allows the
external processor to handle more networking tasks within a given time. For example,
the ST16C2450 without a receive FIFO, will require unloading of the RHR in
93 microseconds (this example uses a character length of 11 bits, including start/stop
bits at 115.2 kbits/s). This means the external CPU will have to service the receive
FIFO less than every 100 microseconds. However, with the 16 byte FIFO in the
SC16C2550, the data buffer will not require unloading/loading for 1.53 ms. This
increases the service interval, giving the external CPU additional time for other
applications and reducing the overall UART interrupt servicing time. In addition, the
four selectable receive FIFO trigger interrupt levels is uniquely provided for maximum
data throughput performance especially when operating in a multi-channel
environment. The FIFO memory greatly reduces the bandwidth requirement of the
external controlling CPU, increases performance, and reduces power consumption.
The SC16C2550 is capable of operation up to 5 Mbits/s with a 80 MHz clock. With a
crystal or external clock input of 7.3728 MHz, the user can select data rates up to
460.8 kbits/s.
The rich feature set of the SC16C2550 is available through internal registers.
Selectable receive FIFO trigger levels, selectable TX and RX baud rates, and modem
interface controls are all standard features. Following a power-on reset or an external
reset, the SC16C2550 is software compatible with the previous generation,
ST16C2450.
6.1 UART A-B functions
The UART provides the user with the capability to bi-directionally transfer information
between an external CPU, the SC16C2550 package, and an external serial device. A
logic 0 on chip select pins CSA and/or CSB allows the user to congure, send data,
and/or receive data via UART channels A-B. Individual channel select functions are
shown in Table 3.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC16C2550IN40 | 制造商:PHILIP 功能描述: |
| SC16C2550IN40,112 | 功能描述:IC UART DUAL W/FIFO 40-DIP RoHS:是 类别:集成电路 (IC) >> 接口 - UART（通用异步接收器/发送器） 系列:- 标准包装:250 系列:- 特点:* 通道数:2，DUART FIFO's:16 字节 规程:RS232，RS485 电源电压:2.25 V ~ 5.5 V 带并行端口:- 带自动流量控制功能:是 带IrDA 编码器/解码器:是 带故障启动位检测功能:是 带调制解调器控制功能:是 带CMOS:是 安装类型:表面贴装 封装/外壳:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:托盘 其它名称:XR16L2551IM-F-ND |
| SC16C2552 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Dual UART with 16-byte transmit and receive FIFOs |
| SC16C2552B | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs |
| SC16C2552BIA44 | 功能描述:UART 接口集成电路 16CB 2.5V-5V 2CH UART 16B FIFO 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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