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参数资料
| 型号： | IDT72V70800PFG8 |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | IC DGTL SW 512X512 3.3V 64-TQFP |
| 标准包装： | 750 |
| 系列： | 72V |
| 类型： | 多路复用器 |
| 电路： | 1 x 4:4 |
| 独立电路： | 1 |
| 电压电源： | 单电源 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-LQFP |
| 供应商设备封装： | 64-TQFP（14x14） |
| 包装： | 带卷 (TR) |
| 其它名称： | 72V70800PFG8 |
6
COMMERCIALTEMPERATURERANGE
IDT72V70800 3.3V TIME SLOT INTERCHANGE
DIGITAL SWITCH 512 x 512
Connection Memory
10000001
10000010
Data Memory
0
1
0
2
1
3
Stream
Control Register
CRb7
5709 drw03
10000000
The Control Register is only accessed when A7-A0
are all zeroed. When A7 =1, up to 128 bytes are
randomly accessable via A0-A6 at any one instant.
Of which stream these bytes (channels) are accessed
is determined by the state of CRb1 -CRb0.
CRb6CRb5CRb4CRb3CRb2CRb1CRb0
CRb1CRb0
0
1
CRb4
11111111
External Address Bits A7-A0
Channel 0
Channel 1
Channel 2
Channel 0
Channel 1
Channel 2
Channel 0
Channel 1
Channel 2
Channel 0
Channel 1
Channel 2
Channel 127
Figure 3. Addressing Internal Memories
used to designate the connection memory or the data Memory. The stream
addressbitsselectinternalmemorysubsectionscorrespondingtoinputoroutput
serialstreams.
The data in the IMS register consists of block programming bits (BPD0-
BPD4),blockprogrammingenablebit(BPE),outputstandbybit(OSB)andstart
frameevaluationbit(SFE).Theblockprogrammingandtheblockprogramming
enablebitsallowsuserstoprogramtheentireconnectionmemory(seeMemory
BlockProgrammingsection).IftheODEpinislow,theOSBbitenables(ifhigh)
ordisables(iflow)allST-BUSoutputdrivers.IftheODEpinishigh,thecontents
of the OSB bit is ignored and all TX output drivers are enabled.
CONNECTION MEMORY CONTROL
If the ODE pin or the OSB bit is high, the OE bit of each connection memory
location controls the output drivers-enables (if high) or disables (if low). See
Table 4 for detail.
Theprocessorchannel(PC)bitoftheconnectionmemoryselectsbetween
Processor Mode and Connection Mode. If high, the contents of the connection
memoryareoutputontheTXstreams. Iflow,thestreamaddressbit(SAB)and
the channel address bit (CAB) of the connection memory defines the source
information(streamandchannel)ofthetime-slotthatwillbeswitchedtotheoutput
from data memory.
The
V/C(Variable/ConstantDelay)bitineachconnectionmemorylocation
allows the per-channel selection between variable and constant throughput
delay modes.
If the LPBK bit is high, the associated TX output channel data is internally
looped back to the RX input channel (i.e., RX n channel m data comes from the
TX n channel m). If the LPBK bit is low, the loopback feature is disabled. For
proper per-channel loopback operation, the contents of the frame delay offset
registers must be set to zero.
INITIALIZATION OF THE IDT72V70800
After power up, the state of the connection memory is unknown. As such,
theoutputsshouldbeputinhighimpedancebyholdingtheODElow. Whilethe
ODE is low, the microprocessor can initialize the device, program the active
paths, and disable unused outputs by programming the OE bit in connection
memory. Once the device is configured, the ODE pin (or OSB bit depending
on initialization) can be switched.
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| IDT72V70800TF | 功能描述:IC DGTL SW 512X512 3.3V 64-STQFP RoHS:否 类别:集成电路 (IC) >> 逻辑 - 信号开关，多路复用器，解码器 系列:72V 标准包装:48 系列:74VHC 类型:多路复用器 电路:4 x 2:1 独立电路:1 输出电流高，低:8mA，8mA 电压电源:单电源 电源电压:2 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
| IDT72V70800TF8 | 功能描述:IC DGTL SW 512X512 3.3V 64-STQFP RoHS:否 类别:集成电路 (IC) >> 逻辑 - 信号开关，多路复用器，解码器 系列:72V 标准包装:48 系列:74VHC 类型:多路复用器 电路:4 x 2:1 独立电路:1 输出电流高，低:8mA，8mA 电压电源:单电源 电源电压:2 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
| IDT72V70800TFG | 功能描述:IC DGTL SW 512X512 3.3V 64-STQFP RoHS:是 类别:集成电路 (IC) >> 逻辑 - 信号开关，多路复用器，解码器 系列:72V 标准包装:48 系列:74VHC 类型:多路复用器 电路:4 x 2:1 独立电路:1 输出电流高，低:8mA，8mA 电压电源:单电源 电源电压:2 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
| IDT72V70800TFG8 | 功能描述:IC DGTL SW 512X512 3.3V 64-STQFP RoHS:是 类别:集成电路 (IC) >> 逻辑 - 信号开关，多路复用器，解码器 系列:72V 标准包装:48 系列:74VHC 类型:多路复用器 电路:4 x 2:1 独立电路:1 输出电流高，低:8mA，8mA 电压电源:单电源 电源电压:2 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
| IDT72V70810PF | 功能描述:IC DGTL SW 1024X1024 3.3V 64TQFP RoHS:否 类别:集成电路 (IC) >> 逻辑 - 信号开关，多路复用器，解码器 系列:72V 标准包装:48 系列:74VHC 类型:多路复用器 电路:4 x 2:1 独立电路:1 输出电流高，低:8mA，8mA 电压电源:单电源 电源电压:2 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
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