- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3764 > SC16C650BIB48,128 (NXP Semiconductors)IC UART SOT313-2 PDF資料下載
參數(shù)資料
| 型號： | SC16C650BIB48,128 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 3/48頁 |
| 文件大小： | 0K |
| 描述： | IC UART SOT313-2 |
| 標準包裝： | 2,000 |
| 通道數(shù)： | 1，UART |
| FIFO's： | 32 字節(jié) |
| 電源電壓： | 2.5V，3.3V，5V |
| 帶自動流量控制功能： | 是 |
| 帶IrDA 編碼器/解碼器： | 是 |
| 帶故障啟動位檢測功能： | 是 |
| 帶調(diào)制解調(diào)器控制功能： | 是 |
| 帶CMOS： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-LQFP |
| 供應(yīng)商設(shè)備封裝： | 48-LQFP（7x7） |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | 935274391128 SC16C650BIB48-F SC16C650BIB48-F-ND |
第1頁第2頁當前第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁
SC16C650B_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 14 September 2009
11 of 48
NXP Semiconductors
SC16C650B
UART with 32-byte FIFOs and IrDA encoder/decoder
In the event that the receive buffer is overlling and ow control needs to be executed, the
SC16C650B automatically sends an Xoff message (when enabled) via the serial TX
output to the remote modem. The SC16C650B sends the Xoff1/Xoff2 characters as soon
as received data passes the programmed trigger level. To clear this condition, the
SC16C650B will transmit the programmed Xon1/Xon2 characters as soon as receive data
drops below the next low or programmed trigger level.
6.5 Special feature software ow control
A special feature is provided to detect an 8-bit character when EFR[5] is set. When 8-bit
character is detected, it will be placed on the user-accessible data stack along with normal
incoming RX data. This condition is selected in conjunction with EFR[3:0]. Note that
software ow control should be turned off when using this special mode by setting
EFR[3:0] to a logic 0.
The SC16C650B compares each incoming receive character with Xoff2 data. If a match
exists, the received data will be transferred to the FIFO, and ISR[4] will be set to indicate
detection of a special character. Although Table 8 “SC16C650B internal registers” shows
each X-register with eight bits of character information, the actual number of bits is
dependent on the programmed word length. Line Control Register bits LCR[1:0] dene the
number of character bits, i.e., either 5 bits, 6 bits, 7 bits or 8 bits. The word length selected
by LCR[1:0] also determine the number of bits that will be used for the special character
comparison. Bit 0 in the X-registers corresponds with the LSB bit for the receive character.
6.6 Hardware/software and time-out interrupts
Three special interrupts have been added to monitor the hardware and software ow
control. The interrupts are enabled by IER[7:5]. Care must be taken when handling these
interrupts. Following a reset, the transmitter interrupt is enabled, the SC16C650B will
issue an interrupt to indicate that the Transmit Holding Register is empty. This interrupt
must be serviced prior to continuing operations. The ISR register provides the current
singular highest priority interrupt only. It could be noted that CTS and RTS interrupts have
lowest interrupt priority. A condition can exist where a higher priority interrupt may mask
the lower priority CTS/RTS interrupt(s). Only after servicing the higher pending interrupt
will the lower priority CTS/RTS interrupt(s) be reected in the status register. Servicing the
interrupt without investigating further interrupt conditions can result in data errors.
When two interrupt conditions have the same priority, it is important to service these
interrupts correctly. Receive Data Ready and Receive Time-Out have the same interrupt
priority (when enabled by IER[0]). The receiver issues an interrupt after the number of
characters have reached the programmed trigger level. In this case, the SC16C650B
FIFO may hold more characters than the programmed trigger level. Following the removal
of a data byte, the user should re-check LSR[0] for additional characters. A Receive
Time-Out will not occur if the receive FIFO is empty. The time-out counter is reset at the
center of each stop bit received or each time the Receive Holding Register (RHR) is read.
The actual time-out value is 4 character time.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT32UC3L016-ZAUR | IC MCU AVR32 16K FLASH 48VQFN |
| ATMEGA88-15MZ | MCU AVR 8K FLASH 15MHZ 32-QFN |
| ATMEGA168P-20MQR | MCU AVR 16K FLASH 20MHZ 32-QFN |
| ATMEGA164A-MCHR | IC MCU AVR 16K 20MHZ 44QFN |
| SC16C2550BIBS,151 | IC UART DUAL W/FIFO 32-HVQFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC16C650BIB48-F | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH UART 32B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| SC16C650BIBS | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH UART 32B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| SC16C650BIBS,128 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| SC16C650BIBS,151 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| SC16C650BIBS,157 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。