- 您现在的位置：买卖IC网 > PDF目录11820 > SC16C754BIA68,512 (NXP Semiconductors)IC UART QUAD 64BYTE 68PLCC PDF资料下载
参数资料
| 型号： | SC16C754BIA68,512 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 3/50页 |
| 文件大小： | 0K |
| 描述： | IC UART QUAD 64BYTE 68PLCC |
| 标准包装： | 18 |
| 通道数： | 4，QUART |
| FIFO's： | 64 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 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 68-LCC（J 形引线） |
| 供应商设备封装： | 68-PLCC |
| 包装： | 管件 |
| 其它名称： | 935274938512 SC16C754BIA68 SC16C754BIA68-ND |
第1页第2页当前第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页
SC16C754B_4
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 04 — 6 October 2008
11 of 51
NXP Semiconductors
SC16C754B
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs
6.2.1 Auto-RTS
Auto-RTS data ow control originates in the receiver block (see Figure 1 “Block diagram of
SC16C754B”). Figure 6 shows RTS functional timing. The receiver FIFO trigger levels
used in auto-RTS are stored in the TCR. RTS is active if the RX FIFO level is below the
halt trigger level in TCR[3:0]. When the receiver FIFO halt trigger level is reached, RTS is
de-asserted. The sending device (for example, another UART) may send an additional
byte after the trigger level is reached (assuming the sending UART has another byte to
send) because it may not recognize the de-assertion of RTS until it has begun sending the
additional byte. RTS is automatically reasserted once the receiver FIFO reaches the
resume trigger level programmed via TCR[7:4]. This re-assertion allows the sending
device to resume transmission.
6.2.2 Auto-CTS
The transmitter circuitry checks CTS before sending the next data byte. When CTS is
active, the transmitter sends the next byte. To stop the transmitter from sending the
following byte, CTS must be de-asserted before the middle of the last stop bit that is
currently being sent. The auto-CTS function reduces interrupts to the host system. When
ow control is enabled, CTS level changes do not trigger host interrupts because the
device automatically controls its own transmitter. Without auto-CTS, the transmitter sends
any data present in the transmit FIFO and a receiver overrun error may result.
N = receiver FIFO trigger level.
The two blocks in dashed lines cover the case where an additional byte is sent, as described in Section 6.2.1.
Fig 6.
RTS functional timing
Start
byte N
Start
byte N
+ 1
Start
Stop
RX
RTS
IOR
N
N+1
12
002aaa226
When CTS is LOW, the transmitter keeps sending serial data out.
When CTS goes HIGH before the middle of the last stop bit of the current byte, the transmitter
nishes sending the current byte, but it does not send the next byte.
When CTS goes from HIGH to LOW, the transmitter begins sending data again.
Fig 7.
CTS functional timing
Start
byte 0 to 7
Stop
TX
CTS
002aaa227
Start
byte 0 to 7
Stop
相关PDF资料 |
PDF描述 |
|---|---|
| MS27484T14B15S | CONN PLUG 15POS STRAIGHT W/SCKT |
| SC16C554DBIA68,518 | IC UART QUAD SOT188-2 |
| SC28L92A1B,528 | IC UART DUAL W/FIFO 44PQFP |
| D38999/20JC98PA | CONN RCPT 10POS WALL MNT W/PINS |
| SCC2692AC1B44,551 | IC UART DUAL W/FIFO 44PQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SC16C754BIA68-S | 功能描述:UART 接口集成电路 16CB 2.5V-5V 4CH UART 64B 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 |
| SC16C754BIA68-T | 功能描述:UART 接口集成电路 4CH. UART 64B 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 |
| SC16C754BIB80 | 制造商:NXP Semiconductors 功能描述:IC UART QUAD 64BYTE FIFO 16C754 制造商:NXP Semiconductors 功能描述:IC, UART, QUAD, 64BYTE FIFO, 16C754 制造商:NXP Semiconductors 功能描述:IC, UART, QUAD, 64BYTE FIFO, 16C754; No. of Channels:4; Data Rate:5Mbps; Supply Voltage Min:2.25V; Supply Voltage Max:5.5V; Digital IC Case Style:LQFP; No. of Pins:80; Operating Temperature Min:-40C; Operating Temperature Max:85C; ;RoHS Compliant: Yes |
| SC16C754BIB80,528 | 功能描述:UART 接口集成电路 16CB 2.5V-5V 4CH 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 |
| SC16C754BIB80,551 | 功能描述:UART 接口集成电路 16CB 2.5V-5V 4CH UART 64B 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 |
发布紧急采购，3分钟左右您将得到回复。