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參數(shù)資料
| 型號： | IDT728980 |
| 廠商： | Integrated Device Technology, Inc. |
| 英文描述： | TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 |
| 中文描述： | 時(shí)隙交換數(shù)字開關(guān)256 × 256 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 80K |
| 代理商： | IDT728980 |
5
Commercial Temperature Range
IDT728980 Time Slot Interchange
Digital Switch 256 x 256
Table 4. Connection Memory High Register
Table 5. Connection Memory Low Register
Table 3. Control Register Configuration
Bit
7
Name
Description
SM(Split Memory)
When 1, all subsequent reads are fromthe Data Memory and writes are to the Connection Memory LOW, except
when the Control Register is accessed again. When 0, the Memory Select bits specify the memory for the
operations. In either case, the StreamAddress Bits select the subsection of the memory which is made available.
When 1, the contents of the Connection Memory LOW are output on the Serial Output streams except when the ODE
pin is LOW. When 0, the Connection Memory bits for each channel determne what is output.
unused
0-0 - Not to be used.
0-1 - Data Memory (read only fromthe mcroprocessor port)
1-0 - Connection Memory LOW
1-1 - Connection Memory is HIGH
The number expressed in binary notation on these bits refers to the input or output streamwhich corresponds to the
subsection of memory made accessible for subsequent operations.
6
PE (Processor Mode)
5
4-3
MS1-MS0
(Memory Select Bits)
2-0
STA2-0
(StreamAddress Bits)
7
6
5
4
3
2
1
0
Mode Control
Bits
Memory Select
Bits
(unused)
Stream Address Bits
Bit
2
Name
Description
CS (Channel Source)
When 1, the contents of the corresponding location in Connection Memory LOW are output on the location's channel
and stream When 0, the contents of the corresponding location in Connection Memory LOW act as an address for the
Data Memory and determne the source of the connection to the location's channel and stream
This bit is output on the CCO pin one channel early. The CCO bit for stream0 is output first.
If the ODE pin is HIGH and bit 6 of the Control Register is 0, then this bit enables the output drive for the location's
channel and stream This allows individuals channels on individuals streams to be made high-impedance, allowing
switching matrices to be constructed. A 1 enables the driver and a 0 disables it.
1
0
CCO (CCO Bit)
OE (Output Enable)
7
6
5
4
3
2
1
0
No Corresponding Memory
- These bits give 0s if read
Per Channel Control Bits
Bit
7-5
(1)
Name
Description
StreamAddress Bits
The number expressed in binary notation on these 3 bits are the number of the streamfor the source of the connection.
Bit 7 is the most significant bit, e.g., If bit 7 is 1, bit 6 is 0 and bit 5 is 0 then the source of the connection is a channel on
RX4.
The number expressed in binary notation on these 5 bits is the number of the channel which is the source of the
connection (the streamwhere the channel lies is defined by bits 7, 6 and 5). Bit 4 is the most significant bit, e.g., if bit 4
is 1, bit 3 is 0, bit 2 is 0, bit 1 is 1 and bit 0 is 1, then the source of the connection is channel 19.
4-0
(1)
Channel Address Bits
7
6
5
4
3
2
1
0
Stream Address Bits
Channel Address Bits
NOTE:
1.If bit 2 of the corresponding Connection HIGH location is 1 or bit 6 of the Control Register is 1, then these entire 8 bits are output on the channel and streamassociated with
this location. Otherwise, the bits are used as indicated to define the source of the connection which is output on the channel and streamassociated with this location.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IDT728981 | TIME SLOT INTERCHANGE DIGITAL SWITCH 128 x 128 |
| IDT728981DB | TIME SLOT INTERCHANGE DIGITAL SWITCH 128 x 128 |
| IDT728981J | TIME SLOT INTERCHANGE DIGITAL SWITCH 128 x 128 |
| IDT728981P | TIME SLOT INTERCHANGE DIGITAL SWITCH 128 x 128 |
| IDT728985 | TIME SLOT INTERCHANGE DIGITAL SWITCH |
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參數(shù)描述 |
|---|---|
| IDT728980J | 功能描述:IC DGTL SW 256X256 44-PLCC RoHS:否 類別:集成電路 (IC) >> 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器 系列:7200 標(biāo)準(zhǔn)包裝:48 系列:74VHC 類型:多路復(fù)用器 電路:4 x 2:1 獨(dú)立電路:1 輸出電流高，低:8mA，8mA 電壓電源:單電源 電源電壓:2 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
| IDT728980J8 | 功能描述:IC DGTL SW 256X256 44-PLCC RoHS:否 類別:集成電路 (IC) >> 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器 系列:7200 標(biāo)準(zhǔn)包裝:48 系列:74VHC 類型:多路復(fù)用器 電路:4 x 2:1 獨(dú)立電路:1 輸出電流高，低:8mA，8mA 電壓電源:單電源 電源電壓:2 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
| IDT728980JG | 功能描述:IC DGTL SW 256X256 44-PLCC RoHS:是 類別:集成電路 (IC) >> 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器 系列:7200 標(biāo)準(zhǔn)包裝:48 系列:74VHC 類型:多路復(fù)用器 電路:4 x 2:1 獨(dú)立電路:1 輸出電流高，低:8mA，8mA 電壓電源:單電源 電源電壓:2 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
| IDT728980JG8 | 功能描述:IC DGTL SW 256X256 44-PLCC RoHS:是 類別:集成電路 (IC) >> 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器 系列:7200 標(biāo)準(zhǔn)包裝:48 系列:74VHC 類型:多路復(fù)用器 電路:4 x 2:1 獨(dú)立電路:1 輸出電流高，低:8mA，8mA 電壓電源:單電源 電源電壓:2 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
| IDT728980P | 功能描述:IC DGTL SW 256X256 40-DIP RoHS:否 類別:集成電路 (IC) >> 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器 系列:7200 標(biāo)準(zhǔn)包裝:48 系列:74VHC 類型:多路復(fù)用器 電路:4 x 2:1 獨(dú)立電路:1 輸出電流高，低:8mA，8mA 電壓電源:單電源 電源電壓:2 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
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