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参数资料
| 型号： | SC16C550BIA44,518 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 48/48页 |
| 文件大小： | 0K |
| 描述： | IC UART SINGLE W/FIFO 44-PLCC |
| 产品培训模块： | Stand-Alone UARTs |
| 标准包装： | 1 |
| 特点： | 可编程 |
| 通道数： | 1，UART |
| 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： | 44-LCC（J 形引线） |
| 供应商设备封装： | 44-PLCC |
| 包装： | 标准包装 |
| 产品目录页面： | 827 (CN2011-ZH PDF) |
| 其它名称： | 568-2039-6 |
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SC16C550B_5
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 05 — 1 October 2008
9 of 48
NXP Semiconductors
SC16C550B
5 V, 3.3 V and 2.5 V UART with 16-byte FIFOs
[1]
HVQFN32 package die supply ground is connected to both the VSS pin and the exposed center pad. The VSS pin must be connected to
supply ground for proper device operation. For enhanced thermal, electrical, and board-level performance, the exposed pad needs to be
soldered to the board using a corresponding thermal pad on the board, and for proper heat conduction through the board thermal vias
need to be incorporated in the Printed-Circuit Board (PCB) in the thermal pad region.
[2]
This pin has a pull-up resistor.
[3]
In Sleep mode, XTAL2 is left oating.
6.
Functional description
The SC16C550B 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 SC16C550B is fabricated with an advanced CMOS process to achieve low
drain power and high speed requirements.
The SC16C550B is an upward solution that provides 16 bytes of transmit and receive
FIFO memory, instead of none in the 16C450. The SC16C550B is designed to work with
high speed modems and shared network environments that require fast data processing
time. Increased performance is realized in the SC16C550B by the larger transmit and
receive FIFOs. This allows the external processor to handle more networking tasks within
a given time. In addition, the four selectable levels of FIFO trigger interrupt are 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 SC16C550B is capable of operation up to 3 Mbit/s with a 48 MHz external clock input
(at 5 V).
IOW
211719
-
I
Write inputs. When either IOW or IOW is active (LOW or
HIGH, respectively) and while the UART is selected, the
CPU is allowed to write control words or data into a
selected UART register. Only one of these inputs is
required to transfer data during a write operation; the other
input should be tied to its inactive level (that is, IOW tied
LOW or IOW tied HIGH).
IOW[2]
20
16
18
12
XTAL1
18
14
16
10
I
Crystal connection or External clock input.
XTAL2[3]
19
15
17
11
O
Crystal connection or the inversion of XTAL1 if XTAL1
is driven.
Table 2.
Pin description …continued
Symbol
Pin
Type
Description
PLCC44 LQFP48 DIP40 HVQFN32
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相关代理商/技术参数 |
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|---|---|
| SC16C550BIA44-S | 功能描述:UART 接口集成电路 16CB 2.5V-5V 1CH 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 |
| SC16C550BIB48 | 功能描述:UART 接口集成电路 16CB 2.5V-5V 1CH 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 |
| SC16C550BIB48,128 | 功能描述:UART 接口集成电路 16CB 2.5V-5V 1CH 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 |
| SC16C550BIB48,151 | 功能描述:UART 接口集成电路 1CH. 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 |
| SC16C550BIB48,157 | 功能描述:UART 接口集成电路 16CB 2.5V-5V 1CH 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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