参数资料
型号: ST16C654IJ68-F
厂商: Exar Corporation
文件页数: 11/51页
文件大小: 0K
描述: IC UART FIFO 64B QUAD 68PLCC
标准包装: 19
特点: *
通道数: 4,QUART
FIFO's: 64 字节
规程: RS232
电源电压: 2.97 V ~ 5.5 V
带自动流量控制功能:
带IrDA 编码器/解码器:
带故障启动位检测功能:
带调制解调器控制功能:
带CMOS:
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: 1016-1272
xr
ST16C654/654D
REV. 5.0.2
2.97V TO 5.5V QUAD UART WITH 64-BYTE FIFO
19
2.15
Infrared Mode
The 654 UART includes the infrared encoder and decoder compatible to the IrDA (Infrared Data Association)
version 1.0. The IrDA 1.0 standard that stipulates the infrared encoder sends out a 3/16 of a bit wide HIGH-
pulse for each “0” bit in the transmit data stream. This signal encoding reduces the on-time of the infrared LED,
hence reduces the power consumption. See Figure 12 below.
The infrared encoder and decoder are enabled by setting MCR register bit-6 to a ‘1’. When the infrared feature
is enabled, the transmit data output, TX, idles at logic zero level. Likewise, the RX input assumes an idle level
of logic zero from a reset and power up, see Figure 12.
Typically, the wireless infrared decoder receives the input pulse from the infrared sensing diode on the RX pin.
Each time it senses a light pulse, it returns a logic 1 to the data bit stream.
FIGURE 12. INFRARED TRANSMIT DATA ENCODING AND RECEIVE DATA DECODING
Character
Data Bits
Start
Stop
00
0
11
1 1
1
Bit Time
1/16 Clock Delay
IRdecoder-
RX Data
Receive
IR Pulse
(RX pin)
Character
Data Bits
Sta
rt
Stop
00
0
11
1
TX Data
Transmit
IR Pulse
(TX Pin)
Bit Time
1/2 Bit Time
3/16 Bit Time
IrEncoder-1
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ST16C654IJ68-F 制造商:Exar Corporation 功能描述:IC QUAD UART 1.5MBPS 5.5V 68-PLCC
ST16C654IJ68TR-F 制造商:Exar Corporation 功能描述:UART 4-CH 64Byte FIFO 3.3V/5V 68-Pin PLCC T/R 制造商:Exar Corporation 功能描述:2.97V to 5.5V Quad UART with 64 Byte FIFOs PLCC 68 制造商:Exar Corporation 功能描述:ST16C654IJ68TR-F
ST16C654IQ 制造商:Exar Corporation 功能描述:
ST16C654IQ100 制造商:EXAR 制造商全称:EXAR 功能描述:QUAD UART WITH 64-BYTE FIFO AND INFRARED (IrDA) ENCODER/DECODER
ST16C654IQ100-F 功能描述:UART 接口集成电路 QUAD UARTW/64BYTE 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