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参数资料
| 型号： | SC16C650BIBS,157 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 2/48页 |
| 文件大小： | 0K |
| 描述： | IC UART SOT617-1 |
| 标准包装： | 2,450 |
| 通道数： | 1，UART |
| FIFO's： | 32 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： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-HVQFN（5x5） |
| 包装： | 托盘 |
| 其它名称： | 935276404157 SC16C650BIBS SC16C650BIBS-ND |
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SC16C650B_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 14 September 2009
10 of 48
NXP Semiconductors
SC16C650B
UART with 32-byte FIFOs and IrDA encoder/decoder
data is delivered to the external CPU. An interrupt is generated whenever the Receive
Holding Register (RHR) has not been read following the loading of a character or the
receive trigger level has not been reached.
6.3 Hardware ow control
When automatic hardware ow control is enabled, the SC16C650B monitors the CTS pin
for a remote buffer overow indication and controls the RTS pin for local buffer overows.
Automatic hardware ow control is selected by setting EFR[6] (RTS) and EFR[7] (CTS) to
a logic 1. If CTS changes from a logic 0 to a logic 1 indicating a ow control request,
ISR[5] will be set to a logic 1 (if enabled via IER[6,7]), and the SC16C650B will suspend
TX transmissions as soon as the stop bit of the character in process is shifted out.
Transmission is resumed after the CTS input returns to a logic 0, indicating more data may
be sent.
With the auto-RTS function enabled, an interrupt is generated when the receive FIFO
reaches the programmed trigger level. The RTS pin will not be forced to a logic 1 (RTS
off), until the receive FIFO reaches the next trigger level. However, the RTS pin will return
to a logic 0 after the data buffer (FIFO) is unloaded to the next trigger level below the
programmed trigger level. However, under the above described conditions, the
SC16C650B will continue to accept data until the receive FIFO is full.
6.4 Software ow control
When software ow control is enabled, the SC16C650B compares one or two sequential
receive data characters with the programmed Xon or Xoff character value(s). If received
character(s) match the programmed Xoff values, the SC16C650B will halt transmission
(TX) as soon as the current character(s) has completed transmission. When a match
occurs, the receive ready (if enabled via Xoff IER[5]) ags will be set and the interrupt
output pin (if receive interrupt is enabled) will be activated. Following a suspension due to
a match of the Xoff characters’ values, the SC16C650B will monitor the receive data
stream for a match to the Xon1, Xon2 character value(s). If a match is found, the
SC16C650B will resume operation and clear the ags (ISR[4]).
Reset initially sets the contents of the Xon/Xoff 8-bit ow control registers to a logic 0.
Following reset, the user can write any Xon/Xoff value desired for software ow control.
Different conditions can be set to detect Xon/Xoff characters and suspend/resume
transmissions. When double 8-bit Xon/Xoff characters are selected, the SC16C650B
compares two consecutive receive characters with two software ow control 8-bit values
(Xon1, Xon2, Xoff1, Xoff2) and controls TX transmissions accordingly. Under the above
described ow control mechanisms, ow control characters are not placed (stacked) in the
user accessible RX data buffer or FIFO. When using a software ow control the Xon/Xoff
characters cannot be used for data transfer.
Table 4.
Flow control mechanism
Selected trigger level
(characters)
INT pin activation
Negate RTS or
send Xoff
Assert RTS or
send Xon
88
8
0
16
7
24
15
28
23
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC16C650BIBS-F | 功能描述:UART 接口集成电路 16CB 2.5V-5V 1CH UART 32B 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 |
| SC16C650BIBS-S | 功能描述:UART 接口集成电路 16CB 2.5V-5V 1CH UART 32B 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 |
| SC16C650BIN40 | 功能描述:UART 接口集成电路 16CB 2.5V-5V 1CH UART 32B 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 |
| SC16C650BIN40,112 | 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 |
| SC16C652 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Dual UART with 32 bytes of transmit and receive FIFOs |
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